toshiba dp2460 sh

SERVICE HANDBOOKDIGITAL PLAIN PAPER COPIER

Click the Page Only button to close the overview area of the window.

Click the Bookmarks and Page button to open the Contents anddisplay bookmarks created for the document. Click a bookmark’s nameto go to the Page marked by that bookmark.

Click the Thumbnails and Page button to open the overview area anddisplay thumbnail images of each document page. Click a thumbnail togo to the page marked by that thumbnail.

Copyright TOSHIBA CORPORATION 1998ALL RIGHTS RESERVED

AUTOMATIC DUPLEXING UNIT

2460MD-5004

GENERAL PRECAUTIONS REGARDING THE INSTALLATIONAND SERVICE FOR THE COPIER 2460The installation and service should be done by a qualified service technician.

1. Transportation/Installation

• When transporting/installing the copier, employ two persons and be sure to use the positions as

indicated below.

The copier is fairly heavy and weighs approximately 83 kg (183 lb), therefore pay full attention

when handling it.

4 portions

2. Installation

• Be sure to use a dedicated outlet with AC 115V/15A (220V, 240V/10A) or more for its power

source.

• The copier must be grounded for safety.

Never ground it to a gas pipe or a water pipe.

• Select a suitable place for installation.

Avoid excessive heat, high humidity, dust, vibration and direct sunlight.

• Also provide proper ventilation as the copier emits a slight amount of ozone.

• To insure adequate working space for the copying operation, keep a minimum clearance of 80 cm

(32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.

• Secure the lifting handles with the fixing plates and screws after the installation is finished.

3. Service of Machines

• Basically, be sure to turn the main switch off and unplug the power cord during service.

• Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the

damp heater and their periphery.

• Be sure not to touch high-voltage sections such as the chargers and the high-voltage transformer.

• Be sure not to touch rotating/operating sections such as gears, belts, pulleys, etc.

• When servicing the machines with the main switch turned on, be sure not to touch live sections

and rotating/operating sections. Avoid exposure to laser radiation.

• Use suitable measuring instruments and tools.

4. Main Service Parts for Safety

• The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important

for safety. Be sure to handle/install them properly.

5. Cautionary Labels

• During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the

power cord during service”, “Hot area”, “Laser warning label” etc. to see if there is any dirt on their

surface or whether they are properly stuck to the copier.

6. Disposition of Consumable Parts/Packing Materials

• Regarding the recovery and disposal of the copier, supplies, consumable parts and packing mate-

rials, it is recommended to follow the relevant local regulations or rules.

7. When parts are disassembled, reassembly is basically the reverse of disassembly unless

otherwise noted in this manual or other related documents. Be careful not to reassemble

small parts such as screws, washers, pins, E-rings, toothed washers in the wrong places.

8. Basically, the machine should not be operated with any parts removed or disassembled.

9. Precautions Against Static Electricity

• The PC board must be stored in an anti-electrostatic bag and handled carefully using a wristband,

because the ICs on it may become damaged due to static electricity.

Caution: Be sure to turn off the copier before attaching the wrist-band.

Always remove the wrist-band before applying power.

September 1997 © TOSHIBA CORP. 1 - 1 2460 ADJUSTMENT

1. ADJUSTMENT ITEMS

1.1 Error Codes

When either the CLEAR PAPER ( ) or CALL SERVICE ( ) symbol appears, press the CLEAR/

STOP and “8” keys simultaneously and the corresponding error code will be displayed. To clear the

error code, turn off the machine.

Group Error code Machine status

Transporting jam inside the copier

Paper feeding jam

Paper transporting jam

Paper jam if some cover is

opened during copying

Original transporting jam at the

ADF

Paper jam inside the copier

Paper jam near the fuser unit

Paper remaining inside the machine at power on

The front cover is opened during copying

Paper jam near the aligning roller

Paper jam at the stacking area inside the ADU

Code error/system board

Paper feeding jam at the ADU

Manual feeding jam

1st cassette (Upper cassette) feeding jam

2nd cassette (Lower cassette) feeding jam

3rd cassette (PFP upper cassette) feeding jam

4th cassette (PFP middle cassette) feeding jam

5th cassette (PFP lower cassette) feeding jam

LCF feeding jam

Paper jam at the LCF

Paper jam inside the copier

Paper jam near the aligning roller

PFP emergency stop

Paper jam at the PFP

Copier front cover is opened during copying

PFP side door is opened during copying

ADU is withdrawn during copying

Copier side door is opened during copying

LCF unit is opened during copying

Manual feed unit is opened during copying

Original feeding jam at the feeding area of the ADF

Original transporting jam at the transporting area of the ADF

Original exiting jam at the exiting area of the ADF

Original prefeeding jam

E01

E02

E03

E04

E05

E08

E09

E11

E12

E13

E14

E15

E16

E17

E19

E21

E22

E23

E24

E25

E41

E42

E43

E44

E45

E46

E71

E72

E73

E79

2460 ADJUSTMENT 1 - 2 September 1997 © TOSHIBA CORP.


Paper jam at the finisher

CALL SERVICE from the drive

system

CALL SERVICE from the paper

feeding system

CALL SERVICE from the optical

system

CALL SERVICE from the process

system

Fuser unit area

CALL SERVICE from communication

CALL SERVICE from ADF

CALL SERVICE from others

CALL SERVICE from the laser

optical system

EA1

EA2

EA4

EA5

EA6

C01

C04

C05

C11

C12

C13

C14

C15

C16

C17

C18

C21

C26

C33

C41

C43

C44

C45

C55

C56

C57

C58

C72

C73

C74

C94

C99

CA1

CA2

Transporting delay jam

Transporting stationary jam

Door open jam

Staple jam

Early arrival jam

Copier main motor operation abnormal

PFP main motor operation abnormal

ADU main motor operation abnormal

ADU side motor operation abnormal

ADU end motor operation abnormal

Copier upper cassette tray operation abnormal

Copier lower cassette tray operation abnormal

PFP upper cassette tray operation abnormal

PFP middle cassette tray operation abnormal

PFP lower cassette tray operation abnormal

LCF tray operation abnormal

Carriage initialization error

Exposure lamp disconnection detected or exposure peak

detection error

Easy setup has failed

Abnormal thermistor or heater disconnection when power is on

Warming up mode after disconnection judgement, or abnor-

mal thermistor after ready

Warming up mode after disconnection judgement, or heater

disconnection after ready

Heater end thermistor disconnection

Communication error between ADF and MCPU

Communication error between PFC and MCPU

Communication error between MCPU and IPC

Communication error between IPC and the finisher

Poor adjustment by the aligning sensor detected

EEPROM poor initialization

Poor adjustment by the exit/reverse sensor detected

MCPU is abnormal

PFC microcomputer is abnormal

Polygonal motor is abnormal

HSYNC is abnormal


Error history(08-253)(Display example) EA1 9 7 0 8 2 6 1 7 5 7 3 2 6 4 6 4 2 3 6 2 1 0 0 0 0 0 0 0

Error code YYMMDDHHMMSS MMM NNN ABCDEFGHIJKL3digit 12digit(Date,time) 3digit 3digit 12digit(Copy mode)


CALL SERVICE from the finisher

CALL SERVICE from optional

units

CB1

CB2

CB3

CB4

CB5

CB6

CB7

F10

Feed motor of the finisher is abnormal

Delivery motor of the finisher is abnormal

Elevation motor of the finisher is abnormal

Alignment motor of the finisher is abnormal

Staple motor of the finisher is abnormal

Staple shift motor of the finisher is abnormal

Distance sensor of the finisher is abnormal

HDD initialization error

Setting mode, code "253" displays latest 8 error data

Copy mode

A Paper feed cassette

0 : Non-select 1 : SFB 2 : LCF 3 : PFP(U) 4 : PFP(M) 5 : PFP(L) 6 : ADU 7 : Copier(U)

8 : Copier (L)

B Paper size code

0 : A5 1 : A5-R 2 : ST-R 3 : LT 4 : A4 5 : B5-R 6 : LT-R 7 : A4-R 8 : OTHER/UNIV 9 : B5

A : FOL/COM B : LG C : B4 D : LD E : A3

C Sort mode

0 : Non-select 1 : Group 2 : Sort 6 : Staple Sort

D DF mode

0 : Not used 1 : AUTO FEED(SADF) 2 : STACK FEED

E APS/AMS mode

0 : Non-select 1 : APS 2 : AMS

F Deplex mode

0 : Non-select 1 : Book 2 : Dual-sided/One-sided 4 : Dual-sided/Dual-sided 8 : One-sided/Dual-sided

G Not used

0 : Not used

H Image shift

0 : Not used 1 : Book 2 : LEFT 4 : RIGHT

I Editing

0 : Not used 1 : Masking 2 : Triming

J Edge-erase/Dual-page

0 : Not used 1 : Edge-erase 2 : Dual-page 3 : Edge-erase&Dual page

K Not used

0 : Not used

L Function

0 : Standard PPC 1 : Extended PPC 2 : FAX Tx 3 : FAX Rx 4 : GDI 5 : DSS

MMM Primary scanning reproduction ratio(Y direction)

Hexadecimal

NNN Secondary scanning reproduction ratio(X direction)

Hexadecimal

(Reproduction ratio)


0 1 C/S

1.2 Self-Diagnosis Modes

ModeInput

DefinitionCleaning

Display after selectioncode method

All-LEDs-lit

Aging mode

Test mode

Test print

mode

Adjustment

mode

Aging mode

Setting mode

“01”

“02”

“03”

“04”

“05”

“07”

“08”

All LEDs on the control panel are lit.

Aging (RADF does not operate)

Motor test and input/output check

Test print

Adjustment of items

Aging (includes RADF)

System switchover and setting of each

priority mode, PM counter, etc.

C/S

“09”

“09”

“09”

“09”

“09”

“09”

AGING MODE

100%

TEST MODE

100%

TEST PRINT MODE

100%

TEST MODE

100%

AGING MODE 2

100%

TEST MODE

100%

Note : To access the desired diagnostic mode, turn on the power switch while pressing the appropriate keys.

<Procedure>

• All-LEDs-lit mode (01):

• Aging mode (02 or 07):

• Test mode (03): Refer to 1.2.1 and 1.2.2.

• Test print mode (04): Refer to “1.2.3 Test print mode”.

• Adjustment mode (05): Refer to “1.2.4 Adjustment mode”.

• Setting mode (08): Refer to “1.2.5 Setting mode”.

Notes : C/S: Press the CLEAR/STOP keyPWR: Turn on the power switchINT: Press the INTERRUPT keyE/S: Press the ENERGY SAVER key

All LEDs light

Aging

PWR

Exit

Exit

STARTPWR

START

Key checkSTART

0 2 0 90 7 C/S

PWR


Quick reference chart for self-diagnostic mode

Normal

*1

“09” “09”

“S”: START key on.“C”: CLEAR/STOP key on.

Warming up

Standby

“C”

“01”*2

“02”

All the displays onthe control panel lit Aging

“07”(With ADF)

“S” “C”

Stops momentarily

“09”

“03” “05” “08”

“05”

“09”

Setting modeAdjustment modeTest mode

*1 When the copier is in the adjustment mode which you entered by turning on the power switch while

pressing keys “0” and “5” simultaneously, pressing keys “0” and “9” simultaneously will make the

copier exit into the standby mode. In this standby mode only, can the adjustment mode be accessed

repeatedly by simply entering “0” and “5”.

*2 While all the displays on the control panel are lit (“01” mode), copying is disenabled.

When the copier enters the standby status by the pressing of the CLEAR/STOP key, copying is

enabled.

Power ON

“04”

Test print mode

“09”


Original size LED Copy size LEDRemarks

A4/LD A3/LG B4/LT A5/ST A4/LD A3/LG B4/LT A5/ST

[1] Key

[2] Key

[3] Key

[4] Key

[5] Key

[6] Key

[7] Key

[8] Key

[9] Key

[0] Key

1.2.1 Input signal check (Test mode 03)

In the “03” test mode, the following input signal conditions can be checked by pressing the appropriate

keys.

[A] When the ENERGY SAVER key is OFF status (LED indicating the energy saver mode is out)

–

–

–

PRTM-1Platen coverclosed

–

–

–

SIZCU-3

SYZPF1-3

SYZPF3-3

–

–

–

–

–

APS3APS sensorinput 3

Size widthsensor 2SIZCU-2

SYZPF1-2

SYZPF3-2

–

–

SCNCNT-0ScannerunconnectedPSTP-1Paper stop sensorpaper supplied

–


–

SIZCU-1

SYZPF1-1

SYZPF3-1

–

CLEARCoin venderclearPFACKPFC ACK

DFACKACK signalfrom ADFHSYNC-1HSYNC error

–

EmptysensorSIZCL-3

SYZPF2-3

SSIZE-3

–

–

EXITSW-0Paper exit SWdetected paperFNCNT-0Finisherunconnected

–

APSRAPS sensorinput R

Door sensoropenSIZCL-2

SYZPF2-2

SSIZE-2

Front coveropen

–

PMTLK-0POL-MOTabnormal rotationADCNT-0ADFunconnectedMMPLLMAIN-MOTabnormal rotationAPSCAPS sensorinput C

Exit/ReversesensorSIZCL-1

SYZPF2-1

SSIZE-1

HTRDY-0Heater lampOFFCTRIN-0Key counterunconnectedPSTPRPaper feedingstatus signalDEVCNT-0Dev unitunconnectedHOME-1Carriagehome

–

AligningsensorSIZCL-0

SYZPF2-0

SSIZE-0

LEDKey

–

–

TFUL-0Toner-fullSW OFF

–

–


Size widthsensorSIZCU-0

SYZPF1-0

SYZPF3-0

LED lit in above condition (Signal level : H)

A4/LD

ORIGINAL COPY

A3/LG

B4/LT

A5/ST

UNIVERSAL/OTHER

MCPUPD

C2XBIN2

C2XBIN0

MCPUPE

MCPUP8

MCPU IN1Lighting/No paperADF→ MCPULighting/PaperPFC→ MCPUPaper sizeLighting/SW offPFC→ MCPUPaper sizeLighting/SW offPFC→ MCPUPaper sizeLighting/SW off

PFP upper size SW

Copier upper size SW Copier lower size SW

PFP middle size SW

Bypass width size SWPFP lower size SW


[B] When the ENERGY SAVER key is ON status (LED indicating the energy saver mode is lit)

Original size LED Copy size LEDRemarks

A4/LD A3/LG B4/LT A5/ST A4/LD A3/LG B4/LT A5/ST

[1] Key

[2] Key

[3] Key

[4] Key

[5] Key

[6] Key

[7] Key

[8] Key

[9] Key

[0] Key

–

SBFSW

Manual feed

SW detected

no paper

–

–

–

–

–

HTRTH-7

DRMTH-7

HTRDY2-7

TUPCL

Copier lower

tray lifted up

SCOVDOR

Manual feed

door open

TUPPF2

PFP middle

tray lifted up

PPLL-OK

PFP motor

abnormal rotation

–

AD-CNT

ADU

unconnected

–

HTRTH-6

DRMTH-6

HTRDY2-6

PEMPCL

Copier lower

paper empty

LC-KEY

LCF tray

down key

OFF

PEMPPF2

PFP middle

paper empty

PF-CNT

PFP

unconnected

–

APLL-OK

ADU motor

abnormal rotation

–

HTRTH-5

DRMTH-5

HTRDY2-5

UCVDOR

Copier side

door opened

LCDOR

LCF door

open

–

–

–

ENDSW

ADU end

SW ON

–

HTRTH-3

DRMTH-3

HTRDY2-3

TUPCU

Copier upper

tray lifted up

TDWNLC

LCF tray

lifted down

TUPPF1

PFP upper

tray lifted up

TUPPF3

PFP lower

tray lifted up

–

PJAM1AD

ADU

Jam SW ON

–

HTRTH-2

DRMTH-2

HTRDY2-2

PEMPCU

Copier upper

paper empty

TUPLC

LCF tray

lifted up

PEMPPF1

PFP upper

paper empty

PEMPPF3

PFP lower

paper empty

–

–

–

HTRTH-1

DRMTH-1

HTRDY2-1

PSTPCU

Copier upper

paper stopped

PEMPLC

LCF paper

empty

PSTPPF1

PFP upper

paper stopped

PSTPPF3

PFP lower

paper stopped

–

PEMPAD

Paper in

ADU

–

HTRTH-0

DRMTH-0

HTRDY2-0

LED

Key

PSTPCL

Copier lower

paper stopped

LC-CNT

LCF

unconnected

PSTPPF2

PFP middle

paper stopped

PFDOR

PFP side

door opened

–

SIDSW

ADU side

SW ON

–

HTRTH-4

DRMTH-4

HTRDY2-4

LED lit in above condition (Signal level : H)

A4/LD

ORIGINAL COPY

A3/LG

B4/LT

A5/ST

UNIVERSAL/OTHER

<Procedure>

Note: 03 → With initialization before test mode is entered

PWRSTART Digital keys LED ON

(To clear)ENERGY SAVER

0 30 9

PFC →MCPU A

PFC →MCPU B

PFC →MCPU C

PFC →MCPU D

–

PFC →MCPU

ADU

–

MCPU

PC*1

MCPU

PC*2

MCPU

PC*3

*1: Fuser thermistor condition

*2: Drum thermistor condition

*3: Fuser thermistor-2 condition


1.2.2 Output signal check (03)

In the “03” test mode, the following output signal conditions can be checked by entering appropriate

codes.

101 Main motor ON*1 151 OFF 1

(Transfer, Separation and Discharge chargers, and

also PCC are ON)

102 Toner motor ON 152 OFF 1

103 Polygonal motor (600 dpi) ON 153 OFF 1

104 Polygonal motor (400 dpi) ON 154 OFF 1

105 Polygonal motor (16 x 15.4) ON 155 OFF 1

106 Polygonal motor (15.4 x 16) ON 156 OFF 1

107 Polygonal motor (at standby) ON 157 OFF 1

108 Copier aligning clutch ON 158 OFF 1

109 PFP main motor ON 159 OFF 1

110 ADU main motor ON 160 OFF 1

111 Scraper solenoid ON 161 OFF

201 Copier upper cassette feed clutch ON/OFF 3

202 Copier lower cassette feed clutch ON/OFF 3

203 Intermediate transporting clutch ON/OFF 3

(PFP transporting clutch)

204 Manual feed clutch ON/OFF 3

222 ADU feed clutch ON/OFF 3

223 ADU stack clutch ON/OFF 3

225 PFP transporting clutch ON/OFF 3

226 PFP upper cassette feed clutch ON/OFF 3

227 PFP middle cassette feed clutch ON/OFF 3

228 PFP lower cassette feed clutch ON/OFF 3

241 Total counter count-up (count-up only) 2

242 Copier upper cassette tray motor lift UP 2

243 Copier lower cassette tray motor lift UP 2

250 Developer bias transformer ON/OFF 3

251 Main charger transformer ON/OFF 3

252 Transfer charger transformer ON/OFF 3

253 Separation charger transformer ON/OFF 3

254 PCC transformer ON/OFF 3

255 Transfer guide bias ON/OFF 3

256 Laser ON/OFF 3

257 Exit fan motor ON/OFF 3

258 Duct fan motor 1 ON/OFF 3

261 Scanning motor ON 2

(automatically stops at the limit position, its speed is variable using the ZOOM keys)

OperationCode Function Code Function procedure

group

*1: Functional when the developer unit is not installed.


09

03 C/S

0903

262 Document (indicator) motor ON 2

263 Halogen lamp ON 3

(automatically goes off after 6 seconds, and the fan motors rotate at low speed)

264 Optical fan motor F ON/OFF 3

265 Optical fan motor R ON/OFF 3

270 LCF feed motor ON/OFF 2

271 LCF tray motor lift UP/DOWN 2

272 ADU side motor ON/OFF 3

273 ADU end motor ON (Come/Go) 2

274 ADU stack solenoid ON/OFF 3

275 PFP upper cassette tray motor lift UP 2

276 PFP middle cassette tray motor lift UP 2

277 PFP lower cassette tray motor lift UP 2

281 ADF pick-up roller rotation ON/OFF 3

282 ADF aligning roller rotation ON/OFF 3

283 ADF transport belt CW rotation ON/OFF 3

284 ADF transport belt CCW rotation ON/OFF 3

401 Memory size of the PM board is checked 2

402 Reading/Writing operation of the PM board is checked 2

<Operation procedure group>

Group (1)

Group (2)

Group (3)

PWROperation

(ON)Code START

Stopcode

Warm-upSTART

PWRCode START

Test mode standby

Warm-up

Operation(ON)

CodePWR

Operation(ON)

Test mode standby

Warm-upSTART START

Operation(OFF)

09

03 C/S

Operation(OFF)

OperationCode Function procedure

group


1.2.3 Test Print (Test Mode “04”)

In test mode “04,” you can print the test pattern generated by the following ASIC codes.

<Operation procedure>

Note : Though errors are displayed when generated, recovery is not carried out. This is remedied by turning the

power OFF then ON again.

Code ASIC Test Pattern type

111 SARAH Primary scanning, 33 gradation (2nd step), error diffusion

113 SARAH Secondary scanning, 33 gradation (2nd step), error diffusion

142 HPS 2-dot grid pattern (Pitch 10 mm)

183 SARAH Primary scanning, 33 gradation (2nd step), + dither process, for fax

184 SARAH Secondary scanning, 33 gradation (2nd step), + dither process, for fax

0 40 9

PWR

Operation(Test print)

Code START Warming upC/S


Initial OperationCode Adjustment Mode value Allowance Contents procedure

group

200 Auto-toner automatic adjustment ALL – – • Increasing the value increases

the sensor output.

• The output is set in the range

of 2.35~2.45V automatically

after changing the value and

2 minutes after starting this

mode. (Note 1)

201 Auto-toner manual adjustment ALL 128 0~255 The auto toner sensor adjust- 2

ment value can be displayed.

205 Developer bias, DC adjustment ALL 174 0~255 The transformer output is aug- 2

210 Grid voltage initial value adjustment ALL 114 0~255 mented by increasing the value

220 Transfer, DC output, High, adjustment ALL 125 0~255 by “1”.

221 Transfer, DC output, Center, adjustment ALL 75 0~255

222 Transfer, DC output, Low, adjustment ALL 75 0~255

230 Separation, AC output, High, adjustment ALL 156 0~255

231 Separation, AC output, Center, adjustment ALL 156 0~255

232 Separation, AC output, Low, adjustment ALL 62 0~255

240 Pre-Cleaning Discharge, AC output adjustment ALL 142 0~255 (Note 2)

261 Laser power, 600 dpi, initial value adjustment ALL 58 0~255 2

304 Scanner secondary scanning reproduction ratio Standard PPC 128 0~255 If the value is increased by “1”, 1

the reproduction ratio of the

paper feeding direction is en-

larged by approx. 0.1522%.

305 Scanner secondary scanning deviation ALL 135 85~171 If the value is increased by “1”, 1

the image shifts approx. 0.1213

mm to the trailing edge of the

paper.

306 CCD primary scanning deviation ALL 85 5~251 If the value is increased by “1”, 1

the image shifts approx. 0.0423

mm to the front side.

310 Halogen lamp light on voltage setting ALL 55 50~70 3

313 Original leading edge image deletion Standard PPC 128 128~255 If the value is increased by “1”, 1

the leading edge void is enlarged

by approx. 0.1213 mm for a

standard copy.

314 Original leading edge image deletion Extended PPC 128 128~255 If the value is increased by “1”, 1

the leading edge deletion is en-

larged by approx. 0.1213 mm

for a special function copy.

1.2.4 Adjustment mode (05)

In this mode, the following adjustment items can be corrected or changed. To access this code, turn on

the power while pressing the “0” and “5” keys.

(Note 1): Refer to 1.3.

(Note 2): Functional with the developer unit removed and the service jig attached. However, the jig is not necessary for the devel-

oper bias adjustment. Refer to 1.9.


315 Original leading edge void adjustment ALL 0 0~255 0.04233mm/count 1

340 Reserved

350 ADF single-sided original stop position ALL 8 0~15 1

351 ADF two-sided original stop position ALL 8 0~15 1

356 ADF EEPROM initialization, ADF sensor ALL – – 4

automatic adjustment

400 Polygonal motor rotation, fine adjustment, 600dpi Standard PPC 128 114~142 If the value is increased by “1“, 1

the primary scanning reproduc-

401 Polygonal motor rotation, fine adjustment, 600dpi GDI 128 114~142 tion ratio is enlarged by approx. 5

0.225%.

405 Polygonal motor rotation, fine adjustment, 600dpi Extended PPC 128 114~142 If the value is increased by “1“, 1

the primary scanning reproduc-

tion ratio is increased by approx.

0.225%.

410 Laser starting position, 600dpi PPC 80 0~255 If the value is increased by “1”, 5

the effective image data writing

area on the drum is shifted by

0.0423 mm to the primary scan-

ning direction.

412 Laser starting position, 400dpi GDI 96 0~255 If the value is increased by “1”, 5

the effective image data writing

area on the drum is shifted by

0.0635 mm to the primary scan-

ning direction.

421 Secondary scanning reproduction ratio, main PPC 140 1~255 If the value is increased by “1”, 5

motor speed, fine adjustment the reproduction ratio of the

paper feeding direction is en-

larged by approx. 0.0315%.

430 Top margin Standard PPC 0 0~255 If the value is increased by “1”, 1

the white area of the leading

edge is increased by approx.

0.04233 mm.

431 Left margin Standard PPC 0 0~255 If the value is increased by “1”, 1

the white area of the left edge

is increased by approx.

0.04233 mm.

432 Right margin Standard PPC 0 –94~255 If the value is increased by “1”, 1

the white area of the right edge

is increased by approx.

0.04233 mm.

433 Bottom margin Standard PPC 0 –94~255 If the value is increased by “1”, 1

the white area of the trailing

edge is increased by approx.

0.04233 mm.

435 Reserved

436 Reserved

437 Reserved


group


438 Reserved

440 Registration, Copier upper cassette ALL 8 0~15 If the value is increased by “1”, 5

441 Registration, Copier lower cassette ALL 13 0~40 the registration position of the

442 Registration, Bypass ALL 8 0~15 image is shifted by approx. 0.5

443 Registration, LCF ALL 8 0~15 mm to the paper leading edge.

444 Registration, PFP ALL 8 0~15

445 Registration, ADU ALL 8 0~15

450 Aligning value, Copier upper cassette, long size ALL 14 0~31 Increasing the value by “1” en- 1

451 Aligning value, Copier upper cassette, short size ALL 16 0~31 larges the aligning by 0.8 mm.

452 Aligning value, Copier lower cassette, long size ALL 14 0~31

453 Aligning value, Copier lower cassette, short size ALL 16 0~31

454 Aligning value, ADU, long size ALL 14 0~31

455 Aligning value, ADU, short size ALL 16 0~31

456 Aligning value, PFP ALL 14 0~31

457 Aligning value, LCF ALL 14 0~31

458 Aligning value, BYPASS ALL 22 0~31

500 Manual exposure, fine adjustment, Center value Standard 128 0~255 If the value is increased, the 1

PPC (Photo/Text) image is darkened at the cen-

501 Manual exposure, fine adjustment, Center value PPC (Photo) 128 0~255 ter of the exposure indicator.

502 Manual exposure, fine adjustment, Center value Standard 128 0~255

PPC (Text)

503 Reserved

504 Reserved

505 Manual exposure fine adjustment, PPC 23 0~255 If the value is increased, the 1

Light side step value (Photo/Text) image is further lightened on

506 Manual exposure fine adjustment, PPC 20 0~255 the light side of the exposure

Light side step value (Photo) indicator.

507 Manual exposure fine adjustment, PPC 25 0~255

Light side step value (Text)

508 Manual exposure fine adjustment, PPC 18 0~255 If the value is increased, the 1

Dark side step value (Photo/Text) image is further darkened on

509 Manual exposure fine adjustment, PPC 20 0~255 the dark side of the exposure

Dark side step value (Photo) indicator.

510 Manual exposure fine adjustment, PPC 20 0~255

Dark side step value (Text)

511 Automatic exposure fine adjustment Standard PPC 128 0~255 If the value is increased, the 1

(Photo/Text) image is darkened.

512 Automatic exposure fine adjustment PPC (Photo) 128 0~255

513 Automatic exposure fine adjustment Standard 128 0~255

PPC (Text)

514 Reserved

515 Reserved

580 Automatic gamma adjustment PPC – – Corrects the image quality after 5

reading the test pattern of the

test print for adjustment. (Note 3)


group


590 Gamma data slope correction Standard PPC 0 0~9 If the value is increased, the 1

(Photo/Text) image is darkened.

591 Standard

PPC (Photo)

592 Standard

PPC (Text)

593 Extended PPC

(Photo/Text)

594 Extended

PPC (Photo)

595 Extended

PPC (Text)

620 HPF intensity setting PPC 0 0~90 1st digit: 0 (fixed) 1

(Photo/Text) 2nd digit:0: Use default value

621 HPF intensity setting PPC (Photo) 0 0~90 1~9: Change the intensity

622 HPF intensity setting PPC (Text) 0 0~90 (If the value is increased,

sharpness is increased)


group

(Note 3): Refer to 1.6.

(Note 4): Standard PPC :Basic specification PPC

Extended PPC :Extended specification PPC brought by the PM board

“PPC” :Includes “Standard PPC” and “Extended PPC”

“GDI”, “DSI” :For optional board

“ALL” :Includes “Standard PPC”, “Extended PPC”, “PPC”, “GDI” and “DSI”


0 50

C / S

9

0 50 9

0 50 9

0 50 9

<Operation procedure group>

Group 1

Group 3

PWRSTART

(25% or 400% key) Exit

ADJUSTPWR

Code START E/S

Exit**Test copyMemory set

INT

Code ADJUST

Group 2

C/S

(Digital keys)

(To correct)

INT

Memory set

PWRADJUST

(Digital keys) ExitCode START INT

Memory set

C/STo correct

ManualAdjustment

** Test copying is not available using the E/S key in the duplex copy mode.

In this case, the adjustment mode must be cleared by inputting “09”; then duplex copying can be performed in the

normal way.

Group 4

START

PWRCode START Initializing/Automatic adjustment

ExitEnds in2 seconds

(If it is not change)

0 50 9

Group 5

PWRCode STARTFAX ADJUST INT

When the output patternselection is “1”

Memoryset

Exit(Digital keys)

(To correct)

Cassetteselection

Output patternSelection

[Digital keys]1: Code 401, 410, 412, 413, 414, 421, 4222: Code 580


1.2.5 Setting mode (08)

In this mode, the various special modes listed in the Setting Code List can be set or changed.

<Procedure>

Set/changea value

INT

Memorizing ClearPWRSTARTCode

Code Name Mode Initial Allowance Remarks

value

200 Internal timer setting ALL — 13 digit Ex) 9 7 0 9 0 1 5 1 3 2 7 4 8

Year ↑ Date ↑ Hour ↑Second

Month Day Minute

201 Destination ALL EUR=0 0~3 0: EUR

UC=1 1: UC

Other=3 2: JPN

3: Other

202 External mounted counter selection ALL 0 0~3 0: No external counter is mounted

1: Coin controller

2: Key card

3: Key counter

204 All clear ALL 3 0~10 0: Not functional

1~10: Set number × 15 sec.

205 Automatic power save ALL 0 0~15 0 = Not functional, 1~5 = Setting value x 30 sec.

6 = 3 min, 7 = 4 min, 8 = 5 min, 9 = 7 min,

10 = 10 min, 11 = 15 min, 12 = 20 min,

13 = 30 min, 14 = 45 min, 15 = 60 min

206 Automatic power off ALL EUR=20 0~20 0 = 3 min, 1 = 5 min, 2 = 10 min, 3 = 15 min,

UC=9 4 = 20 min, 5 = 25 min, 6 = 30 min, 7 = 40 min,

8 = 50 min, 9 = 60 min, 10 = 70 min, 11 = 80 min,

12 = 90 min, 13 = 100 min, 14 = 110 min,

15 = 120 min, 16 = 150 min, 17 = 180 min,

18 = 210 min, 19 = 240 min, 20 = Not functional

209 Background job starting time ALL 1 0~10 1~10: Set number × 15 sec.

250 Telephone number ALL 0 14 digit “–” is input by [HELP] or [INFO] key

251 PM counter, setting value ALL 0 0~999999

252 PM counter, current value ALL 0 0~999999

253 Error history indication ALl – – See page 1-3

254 ADU/Copier cassette loading status ALL 0 0~3 0: Automatic

1: Copier upper cassette is loaded

2: ADU is loaded

3: Neither ADU nor copier upper cassette is loaded

0 80 9


255 PFP loading status ALL 0 0~4 0: Automatic 1: PFP has 1 cassette

2: PFP has 2 cassettes 3: PFP has 3 cassettes

4: PFP is not loaded

256 LCF paper size ALL EUR=0 0~2 0: A4

UC=1 1: LT

2: B5

259 Acceptable copy mode for the coin ALL 0 0~2 0: Normal copying

controller 1: Not accepts a large size paper copying

2: Not accepts a large size paper and a X-Y zoom copying

300 Maximum multiple copying ALL 0 0~2 0: 999

1: 99

2: 9

351 Electronic counter ALL 0 0~999999

352 A3/LD double count ALL 0 0~1 0: Single count

1: Double count

400 Thermistor status counter ALL 0 0~9 0: No error has occurred

1~9: Error has occurred

401 Drum life counter ALL 0 0~999999 (Counts up according to the drum rotation)

402 Power-on time counter ALL 0 9 digit Hour (5 digit), Minute (2 digit), Second (2 digit)

403 Fuser running counter ALL 0 0~999999 Synchronizes with the total counter

(Double count at long size)

404 Developer material counter ALL 0 0~999999 Synchronizes with the total counter

(Double count at long size)

405 Drum potential control ALL 7 0~7 0 bit: Grid potential temperature correction

(Counter correction) 1 bit: Grid potential life correction

2 bit: Laser output drum life correction

406 Pre-running starting time ALL 0 0~7 0 = Not functional

1 = 30 sec, 2 = 35 sec, 3 = 40 sec, 4 = 45 sec,

5 = 50 sec, 6 = 55 sec, 7 = 60 sec

407 Pre-running time ALL 2 0~10 0 = Not functional

1 = 5 sec, 2 = 10 sec, 3 = 15 sec, 4 = 20 sec,

5 = 25 sec, 6 = 30 sec, 7 = 40 sec, 8 = 50 sec,

9 = 60 sec, 10 = 150 sec

408 Pre-running time at the thick paper ALL 10 0~15 0 = Not functional, 1~10 = Setting seconds

11 = 12 sec, 12 = 14 sec, 13 = 16 sec,

14 = 18 sec, 15 = 20 sec

410 Fuser temperature at copying ALL 10 4~13 4: 170°C, 5: 175°C, 6: 180°C, 7: 185°C,

8: 190°C, 9: 195°C, 10: 200°C, 11: 205°C,

12: 210°C, 13: 215°C

411 Fuser temperature at ready ALL 7 0~7 0: 170°C, 1: 175°C, 2: 180°C, 3:185°C,

4: 190°C, 5: 195°C, 6: 200°C,

7: Temp. control ON

412 Fuser temperature in the energy ALL 4 0~5 0: OFF, 1: 120°C, 2: 130°C, 3: 140°C, 4: 150°C,

saver mode 5: 160°C


value


413 Fuser temperature in the thick paper ALL 2 0~4 0: Not functional,

mode 1: 195°C, 2: 200°C, 3: 205°C, 4: 210°C

420 Developer life control ALL 7 0~7 0 bit: ATC correction

1 bit: Laser output correction

2 bit: Grid potential correction

421 Laser power correction value at 600 PPC 128 0~255

dpi (Photo/Text)

422 Laser power correction value at 600 DSI 128 0~255

dpi

423 Laser power correction value at 300/ GDI 128 0~255

600 dpi

424 Laser power correction value at 400 DSI 128 0~255

dpi

426 Laser power correction value at DSI 128 0~255

16 × 15.41 mm

428 Laser power correction value at DSI 128 0~255

15.41 × 16 mm

429 Laser power correction value PPC (Text) 128 0~255

430 Laser power correction value PPC 128 0~255

(Photo)

460 ADF switchback ALL 0 0~1 0: Not functional

1: Functional

480 Cassette selection priority ALL 0 0~6 0: A4/LT

1: LCF

2: Copier upper cassette

3: Copier lower cassette

4: PFP upper cassette

5: PFP middle cassette

6: PFP lower cassette

483 Polygonal motor pre-running ALL 0 0~1 0: Pre-running, 1: Deactivate

484 Polygonal motor stops at the autoclear ALL 0 0~1 0: Activate, 1: Deactivate

501 Image mode Standard 0 0~2 0: Photo/Text mode

PPC 1: Photo mode

2: Text mode

503 Normal mode image density Standard 0 0~1 0: Automatic

PPC(Photo/Text) 1: Manual

550 Image mode Extended 0 0~2 0: Photo/Text mode

PPC 1: Photo mode

2: Text mode

600 ID code mode PPC 0 0~1 0: Not functional

1: Functional

601 Secondary scanning reproduction PPC EUR=0 0~1 0: 100 %

ratio adjustment UC=1 1: 101 %

603 Automatic duplexing mode PPC 0 0~3 0: Not functional 1: One-sided/Dual-sided

2: Dual-sided/Dual-sided 3: User selection


value



value

604 APS priority selection PPC 0 0~2 0: APS, 1: AMS, 2: No

605 SAPS mode PPC 0 0~1 0: All originals detection, 1: First original only

607 ADF priority mode PPC 0 0~1 0: RADF, 1: SADF

611 Book original selection PPC 0 0~1 0: Opening from the front,

1: Opening from the back

613 [USER] key, size selection PPC UC=12 0~14 0: A3, 1: A4, 2: A4R, 3: A5, 4: B4, 5: B5, 6: B5R,

EUR=13 7: LETTER, 8: LETTER-R, 9: LEDGER,

10: LEGAL, 11: STATEMENT-R, 12: COMPUTER,

13: FOLIO, 14: Free size

617 ADF image shift PPC 0 0~1 0: Not shift

1: Shift

621 Bypass automatic start Standard 0 0~1 0: Not functional, 1: Functional

PPC

640 Date format Extended 0 0~2 0: 1996.11.28, 1: 28.11.1996, 2: 11.28.1996

PPC

641 Automatic sorting mode Extended 2 0~3 0: Not functional, 1: Staple

PPC 2: Sort, 3: Group

642 Sorter mode priority selection Extended 0 0~3 0: NON SORT, 1: STAPLE, 2: SORT, 3: GROUP

PPC

645 Reproduction ratio adjustment in Extended 10 0~10 0: 90%, 1: 91%, 2: 92%, 3: 93%, 4: 94%, 5:95%,

editing mode PPC 6: 96%, 7: 97%, 8: 98%, 9: 99%, 10: 100%

646 Arrangement of the page connection Extended 0 0~1 0: Cornering, 1: Centering

PPC

649 Magazine sort Extended 0 0~1 0: Opening from the front

PPC 1: Opening from the back

650 2 in 1/4 in 1 setting Extended 0 0~1 0: Horizontal mode

PPC 1: Vertical mode

690 HDD formatting ALL – 1~2 1: GDI format, 2: DSI format

691 HDD type indication ALL – 0~2 0: Not formatted, 1: GDI type formatted,

2: DSI type formatted

900 ROM version indicationALL – –

UC : T220S1UCXX(Standard ROM)

EUR : T220S1EUXX

901 ROM version indicationALL – –

Mounted : T220S2XX(Extended ROM)

Not mounted : – – – –902 ROM version indication

ALL – – Ver.XXX(Engine ROM)

(Note) Refer to the (Note 4) of the 1.2.4 for the meaning of the mode


C2

C/S

HELP

C28

R

C1

C/S

8R

C1 HELP

0 86 0 0 1 R

1.2.6 How to register/change ID codes (Access control mode)

When ID codes are registered, copies made will be classified according to each ID code. The copier

will not start unless one of the ID codes registered is keyed in.

<Preparation to enter the access control mode>

Procedure to register ID codes:

Procedure to change ID codes:

START INTPWR

STARTE/S

(To correct)

PWR“— — — ”displayed

Memorizing

“0525 000000”displayed

STARTUp to 40 ID codescan be registered

“— — — ”displayed

START “0525 001960”displayed

E/S “— — — ”displayed

MemorizingE/S

PWR

(To skip)

(To clear)“0525 001960”

Next ID codedisplayed

Key in 000000

(To cancel)

Input next ID

Input an ID code

PWR OFF

Warm-up

Warm-up

Warm-up

Warm-upSTART

START

START


128

230%

128

200 A3

135

240%

128

200 A3

002

230%

128 128

200 A3

1.3 Auto-Toner Sensor Adjustment

When the developer material is replaced, the auto-toner sensor needs to be adjusted, and the devel-

oper material counter (setting mode “08”, code “404”) needs to be cleared to zero.

Note: Make sure that the drum blade is pressed to the drum before the auto-toner adjustment.

(3) Enter “200” using the digital keys and press the START key.

The following display will appear.

Note: A: Indicates the control data value of the auto-toner sensor. Use the zoom keys to change the nu-

merical values.

B: The above display indicates an output voltage of 2.30V.

C: Indicates the latest adjustment value.

The drum, developer unit, etc., are operating at this time.

(4) After approximately two minutes, the B displays on the message display will automatically begin to

change.

<Procedure> (Use code “200” in the “05” mode.)

(1) Install the process unit to the copier (main blade contacts with drum).

(2) Press the keys “0” and “5” at the same time and turn on the power switch.

The following display appears indicating that the adjustment mode has been entered.

PWR

(5) After a short time, the B displays on the message display will automatically stop changing and, at

the same time, the message will also change as shown below, indicating that the auto-toner adjust-

ment has finished completely.

START

A

B

B

A

TEST MODE

TEST MODE

0 5100% A3A

TEST MODE

ADJUST MODE

WAIT

C


(6) In this status, check if the numerical value in B is within the range of 235 ~ 245 (auto-toner sensor

output range of 2.35 V ~ 2.45 V).

(7) If the numerical value in B is not within the range of 235 ~ 245, use the ZOOM keys to adjust the

numerical values manually to within the range of 235 ~ 245.

Note: The relationship between the ZOOM keys and the numerical values in A and B is as shown below.

Key used A value B value

ZOOM up key Increase Increase

ZOOM down key Decrease Decrease

(8) Press the INTERRUPT key.

The drum, developer unit, etc., will stop operating and the following display will appear.

(9) Turn off the power switch.

Install the toner cartridge.

INT READY90

100% A3A 100% A41TEST MODE


1.4 Image Density

If the user wants to change the image density, adjust the image density in adjustment mode “05.”

Original modeAdjustment item Remarks

Photo/Text Photo Text

500 501 502 Standard PPC Manual exposure center value The larger the value, the darker the image

505 506 507 Light sideManual exposure step value

The larger the value, the lighter the light range

508 509 510 Dark side The larger the value, the darker the dark range

511 512 513 Standard PPC Automatic exposure The larger the value, the darker the image

Code

Follow the procedure below to adjust the image density to suit the user’s preferences while comparing

the image obtained in the test copy and the currently entered allowable values.

<Keys used in operation> <Display messages>

PWR

Digital keys : Enter code.

START

Digital keys : Enter adjustmentvalue.

used tocorrect value

INTERRUPT

ENERGYSAVER : Test copy

Return to 1 torepeat adjustment.: Adjustment modecanceled.

Code becomes “xxx” accordingto the entered code.

Code No.

Entered adjust-ment value(If no enter, YYY)Current entered adjustment value

Values “zzz” are stored inBC-RAM in place of“YYY”.

Notes: 1) Only one copy of single-sided originals can be made.2) Duplex copying and memory copying cannot be carried out.

Make test copies in these modes after canceling the adjustment mode.

1

TEST MODE

TEST MODE

TEST MODE

WAIT WARMING UP

COPYING

100%

100%

A3A

XXX

0 5

0 9

ZZZYYY

C/S

100% A3A

100% A3A

100% A3A

A3


1.5 Print Image Adjustment

As for the print image adjustment, the adjustment items are listed below.

The adjustment should be performed in the following order.

Adjustment Item Code

(1) Aligning value (450) ~ (458)

(2) Printer unit adjustment

a) Primary scanning reproduction ratio

Polygonal motor 600 dpi/GDI (401)

b) Primary scanning position

Laser starting position 600 dpi/PPC (410)

c) Secondary scanning reproduction ratio

Main motor speed fine adjustment (421)

d) Secondary scanning position

Registration (441) (440) (442) ~ (445)

(3) Scanner unit adjustment

a) Primary scanning reproduction ratio

Polygonal motor 600 dpi/PPC (400)

b) Primary scanning position

CCD primary scanning deviation (306)


Scanner secondary scanning reproduction ratio (304)

d) Secondary scanning position

Scanner secondary scanning deviation (305)

e) Cutting of scanner image leading edge (313)

f) Top margin (430)

g) Left margin (431)

h) Right margin (432)

i) Bottom margin (433)


0 5

0 9

C/S

100%

100%

A3A

XXX

ZZZYYY

100% A3A

100% A3A

100% A3A

A3

[How to Enter Adjustment Values]

Follow the procedure below to adjust each of the adjustment values so that the measurement values

obtained from the test copy satisfy specification values. After starting up in adjustment mode “05”, only

test copies (in the regular copy mode) of single-sided originals can be made with the ENERGY SAVER

key.

<Keys used in operation> <Display message>

PWR


START

Digital keys: Enter adjustmentvalue.


INTERRUPT

ENERGYSAVER : test print

If the test print doesnot satisfy the specifi-cations, return to 1,and repeat theadjustment.

: Adjustment modecanceled.

Code becomes “xxx” according to theentered code.

Code No.

Currently entered adjustment value

Values “zzz” arestored to BC-RAM inplace of “YYY”.

1

Entered adjust-ment value (If noenter, YYY)

TEST MODE

TEST MODE

TEST MODE

WAIT WARMING UP

COPYING


0 5 4 5 08 1 5

0 9

0

1.5.1 Adjustment of paper aligning value

If necessary, you can extend the feed roller life slightly by increasing the paper aligning value.

<Procedure> (Use code 450~458 in the “05” mode.)

(1)

(2) Check the copy for image void and if there is

any, reduce the new value to “31” → “30” →

“29”… until no void occurs. Check for paper

misfeeding.

When the aligning value is increased, noise

caused by the paper scraping against the

mylar may possibly be increased.

(3) For the LCF, ADU and pedestal, the same pro-

cedure can be used.

Void

50 ~100 mm

(New value)

Notes: 1. When frequent paper jams occur near the aligning roller caused by using special thin paper other than

that specified, the aligning value can be changed (reduced) as a measure. However, when the aligning

value is reduced excessively, this may possibly cause the registration to be shifted. Therefore, make sure

that no registration shifting occurs while adjusting the value.

2. Long size adjustment is used as the base when there are both long and short adjustments.

PWR (Cassette)

START

(Current value)

CassetteINT

E/S(Test copy)

Copier cassette

Upper Lower

(Long) (Long)

(450) (452)

ADU

(Long)

(454)

PFP

(456)

LCF

(457)

Bypass

(458)

A A A A

If necessary Copier cassette

Upper Lower

(Short) (Short)

(451) (453)

ADU

(Short)

(455)

A

A

A

A

(Memory set)


4 0 1 1

1.5.2 Printer unit adjustment

a) Polygonal motor 600 dpi/GDI (Primary scanning reproduction ratio of the printer unit)

(1) Make a test print as in the following procedure.

(3) In order to set the distance “A” to 100 mm, adjust as follows.

1

FAX

START Set the value INT

Print movement direction

PWR

15

5

A

1

1FAX

(2) Measure the distance “A” which is the distance between the 5th line and 15th line from the

bottom end of the test print paper against the direction of the paper movement.

0 5 1

Notes 1. An increase in the value lengthen the distance “A”.

2. In order to make a test print, make sure the message indicates [ 100 % A ]

after the INT key is pressed.

3. Adjustment value is effective within the range of 114 ~ 142.

The default adjustment value is 128.


4 1 0 1

0 5 1

b) Laser starting position 600 dpi/PPC


(2) Measure the distance “B” which is the distance from the bottom end of the test print paper to

the 6th line.

(3) In order to set the distance “B” to 52 mm, adjust as follows.

1

Notes 1. An increase in the value makes the distance B longer (0.0423 mm/step).



3. Adjustment value is able to be input within the range of 0 ~ 255.


FAX

Set the value INT 1START


PWR

FAX

B


4 2 1 1

c) Main motor speed fine adjustment (Secondary scanning reproduction ratio of the printer

unit)


(2) Measure the distance “C” which is the distance between the 5th line and 15th line from the

leading edge of the test print paper.

0 5 1

(3) In order to set the distance “C” to 100 mm, adjust as follows.

1

Notes 1. An increase in the value lengthen the distance “C” (0.0315 %/step).





FAX

START Set the value INT 1FAX


PWR

C


< Adjustment procedure >


(2) Measure the distance “D” which is the distance to the 6th line from the leading edge of the

test print paper.

1

0 5 1

d) Registration

< Adjustment order >

(3) In order to set the distance “D” to 52 mm, adjust as follows.

1

Notes 1. An increase in the value corresponds to a decrease in the distance “D” (0.5 mm/step).



3. Adjustment value is able to be input within the range of 0 ~ 15. Default adjustment

value is 8.

In case of the lower cassette feeding (Code “441”), adjustment value is within the

range of 0~40 (Default adjustment value is 13).

4. Since the lower cassette adjustment value becomes a standard for all adjustments,

this adjustment must always be performed in the order stated above.


FAX

Code Set the value INT FAX 1START

D

Copier cassette

Lower Upper

(441) (440)

LCF

(443)

PFP

(444)

ADU

(445)A A A A

Bypass

(442)

PWR


1.5.3 Scanner unit adjustment

a) Polygonal motor 600 dpi/PPC

(1) Place the scale on the original glass (vertical to the direction of the copy paper movement)

and make an A4 100% copy.

(2) Measure and compare the copy and the scale.

(3) In order to correct the copied image to the scale, adjust as follows.

Notes 1. An increase in the value corresponds to an increase in the division of the scale

(0.225 % / step).

2. In order to make a test copy, make sure the message indicates [100 % A]


3. Adjustment value is effective within the range of 114 ~ 142.


Copy movement direction

START Set the value INT(Test copy)

Copied Scale Actual Scale

0 5 4 0 0

PWR

E/S


0 5 3 0 6

b) CCD primary scanning deviation

(1) Place the scale (its end to the rear side original scale and its side to the left side original

scale) on the original glass and make an A4 100% copy.

(2) In order to correct the distance “E”, which should be 100 mm from the position copied to the

bottom of the paper, adjust as follows.

Notes 1. An increase in the value makes the image shift to the paper edge (0.0423 mm/

step).





E

100

START Set the value INT(Test copy)


PWR

E/S



(1) Confirm that the value of the cutting volume of the scanner leading image edge (code 313) is

128 (default value).

(2) Place the scale (horizontal to the copy movement direction) and make an A3 100% copy.


(3) Compare the copy and the scale.

(4) In order to adjust the divisions of the scale, do as follows.

Notes 1. An increase in the value corresponds to an increase in the division of scale (0.1522

%/step).

2. In order to make a test copy, make sure the message indicates [ 100 % A ]




START Set the value INT

0 5 3 1 3

PWR

START INTIn case the value is “128”. PWR OFF

In case that the value is not“128”, input “128” with thedigital keys

Copied Scale

Actual Scale

0 5 3 0 4

PWR

E/S(Test copy)


0 5 3 0 5

d) Scanner secondary scanning deviation

(1) Make the adjustment values for the original leading edge void to “0”, and the cutting volume of

scanner leading image edge to “128”.

(2) Place the scale (its end to the left side original scale) on the original glass and make an

A3 400% copy.

(3) In order to correct the distance “F”, which should be 42 ±0.5 mm from the leading edge of the

paper, adjust as follows.

Notes 1. An increase in the value makes the image move to the trailing edge (0.1213 mm/

step).



3. Adjustment value is able to be input within the range of “85 ~ 171”.



Set the value(Test copy)

START INT

PWR

START INT

PWR

Input the “0” withthe digital keys

0 5 3 1 5 3 1 3

START INTInput the “128”with the digital keys

10

F

E/S


e) The cutting volume of the scanner leading image edge.

(1) Place the scale (its end to the left side original scale) on the original glass and make an A4-

100% copy.

(2) In order to delete the copy of scale mark just for 2 mm from the leading edge of the paper,

adjust as follows.

Notes 1. An increase in the value makes the image move to the leading edge of the paper

(0.1213 mm/step).



3. Adjustment value is able to be input within the range of “128 ~ 255”.


5 10


0 5 3 1 3 Set the value(Test copy)

START E/S

PWR

Copied scale

INT


0 5 4 3 2

f) Left margin

Not functional

g) Right margin

(1) While the original cover remains open, make an A4-100% copy.

(2) In order that the blank space at rear side of the copy is just 2 mm, adjust as in the following

procedure.

Notes 1. An increase in the value corresponds to an increase in the blank image (0.0423

mm/step).



3. Adjustment value is able to be input within the range of –94 ~ 255.


4. In order to input a minus (–) value, use the # key.

(ex. if the value is “–15”: key in # 1 5 )


Set the value E/SSTART INT

2mm

PWR (Test copy)


0 5 4 3 3

h) Top margin

Not functional

i) Bottom margin

(1) While the original cover remains open, make an A4 100% copy.

(2) In order that the blank space at the trailing edge of the copy is just 2 mm, adjust as in the

following procedure.

Notes 1. An increase in the value corresponds to an increase in the blank image (0.0423

mm/step).



3. Adjustment value is able to be input within the range of –94 ~ 255.


4. In order to input a minus (–) value, use the # key.

(ex. if the value is “–15”: key in # 1 5 )


Set the value E/SSTART INT

2mm

PWR (Test copy)


1.6 Automatic Gamma Adjustment(1) At the unpacking

When the tone reproduction deviation is too large, it can be corrected by the automatic gamma

adjustment.

This adjustment shall be done upon user’s request when the tone reproduction is too high or too

low.

(2) When any of the following parts is replaced, this adjustment is required.

• Halogen lamp • Original glass with shading board

• Lens unit • Laser optical system unit

(3) When any of the following parts is replaced or adjusted, check the copy image and determine the

necessity of this adjustment.

• Optical system position (CRG1, CRG2 position) • Mirror 1, 2, 3

• Reflector • Drum • Developer

• Main charger • Development bias • Transfer charger

• Separation • Pre-cleaning discharge charger

Note) This adjustment must be done only after the image adjustment described in 1.5.

Code Adjustment item Procedure

580 Automatic gamma

adjustment[Procedure]

(1) Turn on the power switch with “05”.

(2) Select A3 or LD paper for the output paper size.

(3) Press the “2” key and then “FAX” key.

(One copy of the 33-gradation pattern is outputted.)

(4) Confirm that there is no blank or line on the gradation pattern outputted in

the above step (3) and the density changes gradually.

If there is any problem in the gradation pattern, repeat the step (3) to output

a gradation pattern again.

(5) Face the dense side of the output gradation pattern to the original scale at

the exit side and put it on the original glass with the printed face down.

(6) Input the code “580” through the control panel and press the START key.

(The scanner automatically reads the original and the operation for the

automatic gamma adjustment will be done. About 10 seconds)

(7) When the operation completes normally, the machine returns to the stand-

by status. If the operation terminates abnormally, “TEST MODE ERROR”

will be displayed. (See the indication on the next page.)

For the abnormal termination, press the C/S key to release the error

indication. When released, the display on the control panel returns to the

stand-by status. Check the position, direction and skew of the gradation

pattern on the original glass, and repeat the steps from (5).



100% A

100% A

100% A

100% 580

100% A

100% 580

0 5

C/S

0 9

1

PWR

A3

2

FAX

Digital keys

START

: Select the casette

: Prints out the 33gradation patternPlace the original

: Input the code

: Starts the adjustment

: Ends the adjustment: Clear the adjustment errorReturn to 1 to repeat adjust-ment: Exit the adjustment mode

TEST MODE

WAIT WARMING UP

COPYING

TEST MODE WAIT

TEST MODE

TEST MODE ERROR

Abnormal: (Clear using C/S key)

Normal: (Warming up)


100%

100%

A3A

XXX

0

1

5

0 9

ZZZYYY

C/S

100% A3A

100% A3A

A3


PWR


START

Digital keys : Enter adjustment value.


INTERRUPT

ENERGYSAVER : Test copy

Return to 1 to repeat adjustment.

: Adjustment mode canceled.

Code becomes“xxx” according tothe entered code.

Code No.

Entered adjustmentvalue(If no enter, YYY)Current entered adjustment value

Values “zzz” are stored inBC-RAM in place of “YYY”.

Notes: 1) Only one copy of single-sided originals can be made.2) Duplex copying and memory copying cannot be carried out.

Make test copies in these modes after canceling the adjustment mode.

TEST MODE

TEST MODE

TEST MODE

COPYING

1.7 Sharpness (HPF) Adjustment

If the user wants to change the image sharpness to softer or harder, adjust the HPF intensity in

adjustment mode “05”.

Image modeAdjustment item Remarks


Code

620 621 622 HPF intensity 1st digit : 0 (fixed)

2nd digit : 0: Use default value

1~9: Change the intensity

(If the value is increased, the sharp-

ness is increased)


1.8 Gamma Slope Correction

If the user wants to change the gamma curve, adjust the gamma slope correction in adjustment mode

“05.”

590 591 592 Standard PPC Gamma slope correction

593 594 595 Extended PPC Gamma slope correction

Code

Image modeAdjustment item Remarks


If the value is increased, the image

is darkened.

(Center value is 5)

If the value is increased, the image

is darkened.

(Center value is 5)

Input procedure of the adjustment value is same as the 1.4 image density adjustment.


1.9 High-Voltage Adjustment1.9.1 Adjustment

(1) Measurement

Developer unit

Cleaner unit

Dev.unit connector of

the machine

(+) terminal

(–) terminal

Function switch

Full-scale

Remarks

How to turn the power ON

Developer Bias Main Charger Transfer Charger Separation Charger

Pull out the connector.

Remove the drum.

Install the Developer unit.

Not connect

Connect to the bias

measuring hole (B) of the

Developer unit.

Connect to (A)

Connect to the main

charger case. (between

the case and the terminal)

Connect to red cable of Current measuring jig.

Connect to the white cable of the current measuring Jig (frame grounding).

DC AC

1,000 V 2V

Use a digital tester having an input resistance of 10 MΩ (RMS value) or more.

Developer Bias Main Charger Transfer Separation

Use the door switch jig.

Remove from the copier. (Not use)

Mount on the machine with a current measuring jig.

NOTES 1: Connect the green code of the current measuring jig to earth on the copier.

Connect the jig detection connector to the Dev.unit connector of the copier.

Dig

ital T

este

r

d terminal e terminal

e(A)

Machine frame(frame grounding)

d terminal

e terminal

Green

Red

White

Brown

d(B)

Main charger case

Currentmeasuringjig

Dev. unit connectorof the copier

Jig detectionconnector

(Frame grounding)


Pre-Cleaning Discharge

← Developer unit

← Cleaner unit

← Dev. unit connector of

the machine

← (+) terminal

← (–) terminal

AC Function switch

2V Full-scale

← Remarks

Use door switching jig. How to turn the power ON

Pre-cleaning Discharge

Machine frame(frame grounding)

Red

White

e terminal

d terminal

Shaft jig

CleanerBracketD

igita

l Tes

ter

Currentmeasuring jig

Current measuring jig

Shaft fastening jig

Refer to 1.9.3 for detailed mounting method.

Jig detection connector

Brown

Dev. unit connectorof the copier



(2) Operation

NOTES

1. When the drum has been replaced with a new one, “0” (zero) must be input to clear the drum life

counter (“08” mode, code 401).

Also when the developer material is replaced with a new one, clear the developer material counter

to zero (“08” mode, code “404”).

2. When adjusting the high-voltage outputs, a current measuring jig and a shaft jig are required (ex-

cept the developer bias measurement).

3. When the connector of the shaft jig and the connector of the developer unit on the machine are not

connected, high-voltage adjustment codes are not accepted, except the developer bias adjustment.

When the developer bias is to be measured, nothing should be connected to the connector of the

developer unit on the machine.

4. The measurement value of the developer bias varies according to the input resistance of the digital

tester. For shipping, adjustment is made using a 100 MΩ input resistance tester.

Connect the digital testers as instructed in (1) and follow the procedure below to adjust the main charger,

developer bias, transfer, separation, and pre-cleaning discharger outputs.


0 5

0 9

100%

100%

A3A

XXX

YYY

100% A3A

A3

Note: The “adjustment value” indicates the output voltage of the D/A converter (IC75) on the logic board. The rela-

tionship between the output voltage and adjustment value is as follows:

output voltage = ( adjustment value + 1) ÷ 256 × 5 V

PWR


START

ZOOM : Adjust value “YYY” so that the measurement values satisfy the values in the following table.

INT : Value “YYY” after adjustment is stored to BC-RAM.

To switch to otheradjustment modes,return to 1.

: Adjustment mode canceled.

Main Developer Transfercharger bias High Center Low

Code 210 205 220 221 222Adjustment Input 100MΩ –642 ±5V –450 ±5V 409 ±67mV 298 ±64mV 150 +60/–37mVvalue resistance 10MΩ –642 ±5V –420 ±5V 409 ±67mV 298 ±64mV 150 +60/–37mV

Code No.

Current entried adjustment value

1

Separation Pre-cleaningHigh Center Low discharger

Code 230 231 232 240Adjustment RMS value 1122 ±117mV Not used 347 +99/–113mV 919 ±189mVValue Mean value 1051 ±101mV Not used 317 +89/–103mV 834 ±186mV


TEST MODE

TEST MODE

TEST MODE


Adjustment code

Copy leading edge Copy trailing edge

“220” “221” “222”

1.9.2 Precautions

(1) Developer bias

Caution during Adjustment

If fogging appears over the entire surface even though the grid voltage and toner density are appropri-

ate, adjust the developer bias on the control panel. The following defects may occur if the developer

bias is lowered too much:

• Image contrast becomes low.

• Image is patchy or blurred.

• Developer carrier adheres to the photosensitive body, making it easier for scratches to occur or the

surface of photosensitive body by the cleaner blade.

(2) Transfer

Items to Check before Adjustment

Pockmarks or defective transfer also occur in defects besides transfer output adjustment defects. If

this happens, check the following items. If an error is not found after carrying out the following checks,

adjust the output.

• Is the charger wire out of position or dirty? Is the transfer guide deformed?

• Is the developer unit connected? Are the developer magnetic brushes contacting with the drum?

Is the developer unit rotating during copying? Is the toner density low?

• Is the copy paper bending as it is being fed in? Is the copy paper abnormally moist?

• Is the aligning roller rotating normally?

• Is the transfer guide bias outputing?

• Is the separation output deviating from the set value?

• Is the developer bias an appropriate value?

• Is the transfer/separation charger case earthed? Is the photosensitive drum (shaft) earthed? Is the

transfer/separation transformer earthed?

• Is the transfer charge limit plate (transparent film) damaged or deformed?


1When pockmarks occur:

• If pockmarks are occurring in halftone areas, lower the transfer output value. However, note that if

the transfer output value is lowered too far, the transfer performance also will be reduced.

2When defective transfer occurs:

Increase the transfer output value under the following conditions. However, note that if the transfer

output value is raised too far, pockmarks will occur.

• If defective transfer occurs even though the charger wire is not dirty, and

• If thick paper is frequency used.

• The adjustment code varies according to where pockmarks occur. Select the required adjustment

code while referring to the following diagram.

Approx. 14 mm Approx. 10 mm


(3) Separation

Items to Check before Adjustment

Defective separation from the drum also occurs in other than separation output adjustment defects. If

this happens, check the following items. If an error is not found after carrying out the following checks,

adjust the output.

• Is the charger wire out of position or dirty?

• Is the developer unit connected? Are the developer magnetic brushes contacting with the drum?

Is the developer unit rotating during copying? Is the toner density low?

• Is the copy paper bending as it is being fed in? Is the copy paper abnormally moist?

• Is the alignment roller rotating normally?

• Is the main charger outputting?

• Is the transfer output deviating from the set value?

• Is the transfer/separation charger case earthed? Is the transfer/separation transformer earthed?


1When defective separation occurs:

Increase the separation output value under the following conditions. However, note that if the sepa-

ration output value is raised too far, pockmarks will occur, and separation performance will be re-

duced. (Adjustment code = 230)

• If defective separation occurs even though the charger wire is not dirty, and

• If thin paper is frequency used.

2When defective transfer occurs:

• Lower the separation output value when defective transfer occurs. However, note that if the sepa-

ration output value is lowered too far, the separation performance also will be reduced.

• The adjustment code varies according to where the defective transfer occurrs. Select the required

adjustment code while referring to the following diagram.

Adjustment code

Copy leading edge Copy trailing edge

Approx. 10 mm

"230" "232"“230” “232”


1.9.3 Installation of the Current Measuring Jig

(2) Pass the current measuring jig through the

shaft jig and align the shaft fastening bush to

the rear hole of the cleaner unit. Fix the bracket

to the cleaner unit (1 screw).

Notes: 1. Check the shaft fastening bush alignment

again to fix the bracket.

2. Use care to prevent damage to the edge of

the separation claws.

(3) Fix the shaft fastening bush to the shaft jig

from rear side of the cleaner unit (1 screw).

(4) Install the cleaner unit to the copier (2 screws), and connect the jig detection connector to the

developer unit connector of the copier.

Fix the green cable of the current measuring jig to the machine frame.

Notes 1. Move the current measuring jig to the center of the cleaner unit.

2. Use care to prevent damage to the edge of the separation claws.

3. High-voltage adjustment is rejected if the jig detection connector is not connected (except the

developer bias adjustment).

(1) Attach the bracket and the round terminal of

the brown cord from the jig detection connector

in common (1 screw) to the shaft jig . Pass

the jig through the cleaner unit.

Notes: 1. When passing the shaft from the outside of

the cleaner, insert the thinner part of the shaft

at first.

2. The drum blade should be released by rotat-

ing the cam before the first.

Cleaner

Shaft jig

Shaft fastening bushCurrent measuring jig

Shaft jig

Cam

Bracket

Brown cord

Jig detection connector

Bracket Cleaner unit

Shaft jig Jig detectionconnector

Current measuring jigShaft fastening bush


Cleaner unit


1.10 Installation of Carriage Drive Wire

When the carriage drive wire is replaced, attach the new wire as shown:

1.10.2 Adjustment of carriage 1 and carriage 2

(1) Remove the indicator unit.

(2) Loosen the 3 screws fixing carriage-1 (2

screws, front, rear, 1 screw each) and -2 (1

screw in front) to the wire.

(3) While pressing carriage-2 against the exit side

frame (both A & B), tighten the carriage-2 fix-

ing screws (front side).

(4) Also while pressing carriages 1 and 2 against

the exit side frame (C & D), tighten the car-

riage-1 fixing screws.

1.10.1 Wire tension adjustment

(1) For this model, it is unnecessary to adjust the carriage drive wire tension.

Carriage 2

Carriage 1

Rear side view

Tension spring

Pulley

D C

B A

BeltWire winding pulley

Scanning motor Carriage 2

Carriage 1

Exit side frame

Exit side frame

Carriage drive wire

Exit side frame

Pulley

Pulley

Exit side frame


1.10.3 Carriage drive wire assembling

• Winding the wire to the wire winding pulley

(1) Fit the φ3 spherical terminal (on the central

part of the wire) into the hole of the wire wind-

ing pulley.

Set the wire so that the crimping portion of

the wire and hook is faced up.

(2) Wind the wire to the each front and rear side

pulleys.

Winding turns are:

• 6 turns on the opposite to the boss side (out-

side) of the pulley.

• 1 turn on the boss side (inside). After wind-

ing, secure the wire with the wire holder jig.

Spherical terminal 6 turns

Hook

<Front side>

1 turn

Pulley(Front)

Pulley (Rear)

1 turn

6 turns

Spherical terminal

<Rear side>

Hook

Spherical terminals

(Front)

(Rear)

Wire winding pulley

WiresHooks

Wire winding pulley

Wire holder jig

Spherical terminal

Wire winding pulley

Boss

Boss


Notes 1. Wind the wire round the pulley taking the fol-

lowing precautions

• Never twist the wire when winding.

• Wind the wire tightly to make it come into

close contact with the pulley.

• Wind the wire taking care not to leave any

gap between the wraps.

2. When the wire holder jig is installed, do not

slide or loosen the wound wire.

3. The wire holder jigs are the same for the front

and rear sides.

Be careful when installing the jig.

The jigs will not installed if its installation di-

rection is wrong, it is floating on the pulley.

In full contact

Example) Front side

Spherical terminal

<Installation phase>

Pulley

Wire holder jig

Front side← Rear side→ Projection

Projection

Wire holder jig


1.11 Image Inclination•Image Distortion1.11.1 Image inclination

Paper

Direction of the copy papermovement

Direction of the copy papermovement

A

B

Image

A B

If inclination of the image occurs even though the

edge of the original is properly aligned with the

scale, adjust by moving the original scale.

In case of A

• Move the original scale in the direction indicated

by

In case of B

• Move the original scale in the direction indicated

by


1.11.2 Image distortion

<Procedure>

Removing the original glass. (Adjustment order:

step 1 → step 2)

Step 1

In case of A:

Tighten the mirror-2 adjustment screw (CW).

→ Go to C

In case of B:

Loosen the mirror-2 adjustment screw (CCW).

→ Go to D

Image

A B

D

Mirror-2

Direction of the copy paper movement

Direction of the copy paper movement

Step 1

Step 2

C


Step 2

In case of C:

Tighten the mirror-1 adjustment screw (CW).

→ Normal image

In case of D:

Loosen the mirror-1 adjustment screw (CCW).

→ Normal image

Mirror-1


1.12 Lens UnitIt is impossible to adjust the lens unit. Replace the entire unit with a new one.

Notes 1. Do not touch the screws H (paint lock: 7pcs.) when replacing the lens unit.

2. Take sufficient care when handling the unit not to hold the adjustment portion.

Front side Rear side

Lens


1.13 Adjustment of Gap between Drum and SleeveThis model uses a hit-drum method using the guide roller, and no adjustment is necessary.

Guide roller

1.14 Adjustment of Developer Polarity Position(1) Remove the developer unit from the machine.

(2) Adjust at the rear adjustment plate. Loosen

the fixing screw of the adjustment plate and

move the plate according to the stamped mark

on the plate as a guide line to make adjust-

ment.

As this is already adjusted with a special jig

at the time of shipping from the factory, do

not loosen the screw unnecessarily.

When loosening the screw for disassembly,

etc., remember the position of the adjustment

plate and reinstall it where it was.

(During the replacement of the magnetic roller,

adjust the developer the developer polarity po-

sition.)

Adjustment plate

Height of developer polarity position: H=34.7 mm

H

Stamped mark


1.15 Doctor Sleeve Gap AdjustmentTool required: Doctor sleeve jig

Method

(1) Remove the developer unit from machine, take

out the upper cover (2 screws), and discharge

the developer material.

(2) Place the developer unit on a flat surface.

(3) Turn the leveler adjustment screws and ad-

just it using the step “0.45” into the gap be-

tween the sleeve and leveler.

(4) Check that step “0.40” can move smoothly in

the front and rear direction in the gap between

the sleeve and leveler, while step “0.50” can-

not be inserted.

(5) Reassemble the upper cover of developer

unit.

Notes: 1. Align the position of sleeve marking with that

of the leveler, when checking or adjusting the

gap between the sleeve and the leveler.

2. When assembling the upper cover, fasten the

hooks with a screw after fully inserting them.

3. After reassembling the upper cover, pay at-

tention to avoid overlapping of the side seal

(front and rear) and the rubber seal.

Step “0.40”

Leveler

Sleeve

Step “0.45”

Leveler adjustment screws


1.16 ADU Adjustment1.16.1 Adjusting the stack guide unit in position

In duplex copying using the ADU, the difference in side deviation on both sides of the copy should be

within ±3 mm. If not, make adjustment as follows:

After stacking sheets of paper on the stack guide, check that the gap between the side stopper and the

edge of the sheet is 1.5 ± 1 mm. To adjust the gap, loosen the side switch bracket fixing screw. Move the

bracket according to the scale. After moving the bracket, initialize the ADU. Check the gap between the

side guide and the paper.

Stackedsheets

Sideguide

1.5 ± 1 mm

Side guide

ADU motorbracket

Side switchbracket


1.16.2 Adjusting ADU side deviation

To adjust the side deviation of the image of duplexed copies (i.e. the image on the second side):

(1) When the 5 fixing screws at the front cover of the ADU are loosened, the ADU can be adjusted in the

front/rear direction by a maximum of 3 mm.

(2) If the center of the image is shifted toward the rear side, move the ADU front cover to the rear side

the same distance (as the image is shifted) and tighten the screw.

(3) If the center of the image is shifted toward the front side, move the ADU front cover to the front side

the same distance (as the image is shifted) and tighten the screw.

Front left side Front right side

1.17 Adjusting Cassette Side DeviationThe procedure for adjusting cassette side deviation for the copier and the PFP is the same as in 1.16.2.

Right feed side

September 1997 © TOSHIBA CORP. 2 - 1 2460 MAINTENANCE

2. PERIODICAL MAINTENANCE

2.1 Inspection every 80,000 Copies(1) Preparation

1 Ask the key operator about the present machine conditions and note them down.

2 Before starting the maintenance work, make and retain a few sample copies for later compari-

son.

3 Turn off the power switch and disconnect the power cord plug.

(2) The periodic inspection should be conducted in accordance with the Periodic Inspection Check List

shown below. Perform the inspection by referring to the figures, as well as to the explanations in the

Service Manual when necessary.

(3) After the inspection has been completed, plug in the machine and turn the power switch on, and

confirm the general operation of the machine by making a few copies and comparing them to those

made previously.

2.2 Inspection and Overhaul every 240,000 Copies(1) Replace all the consumables.

(2) Check to see if there is any damage to the parts of driving section (gear, pulley, timing belt, etc.).

Replace parts on principle if damaged.

(3) Check to see if there is any damage or peeling of adhered parts (tape, Mylar sheet, etc.). Replace

any affected parts.

(4) Check to see if all the switches and sensors operate properly. Replace them if they are not operat-

ing properly.

(5) Clean the inside of the machine thoroughly.

2.3 Periodic Inspection Check List

Symbols used in the Periodic Inspection Check List

Cleaning Lubrication Replacement Date

A: Cleaning with alcohol L: Launa 40 80: Every 80,000 copies Customer’s

P: Cleaning with heat Application 160: Every 160,000 copies name

roller cleaner (RC60) S: Silicone Oil Same thereafter Machine

Z: Cleaning with soft pad, W: White grease (Molycoat) >: Replace in event of No.

cloth, or cleaner deformation or other Inspector

(vacuum cleaner) damage

Remarks

2460 MAINTENANCE 2 - 2 September 1997 © TOSHIBA CORP.

PERIODIC INSPECTION CHECK LIST

Clean at Lubricate at Replace Check80,000 copies 80,000 copies x 1,000 while on

1. Overall unit Z

2. Main blade 80 *13. Toner bag 20 Conducted

Cleanerby keyoperator

4. Recovery blade Z > *26. Separation claw 80 > Z *3

7. Drum shaft Z or ADrum 8. Drum 80 *4

9. Ozone filter 80

Original 10. Glass Z *5holder 11. Original cover Z or A

12. Mirror 1 Z

13. Mirror 2 Z

14. Mirror 3 Z

15. Reflector Z

Optical 16. Lens Z

system 17. Exposure lamp > Z

18. Copy area indicator Z

19. APS Z Z

20. Slider sheet (front, rear) Z or A >21. Air filter Z > *622. Case Z *7

Charger23. Charger wire 80 > Z *724. Terminal contact Z

25. Grid Z 160 *826. Overall unit Z

Develop- 27. Developer material 80 *9er unit 28. Front shield Z > *10

29. Guide roller Z or A >Laser op- 30. Slit glass Z

tical unit31. Pick-up roller A 80 >32. Feed roller A 80 >33. Separation roller A 80 >

Paper34. Paper feed system drive gears W

feed(tooth faces)

system35. Aligning roller A >36. Paper guide Z >37. Brush Z >38. Transport belt Z >39. Separation pad A 80>

RemarksItem to checkArea


Item to checkArea RemarksClean at Lubricate at Replace Check

80,000 copies 80,000 copies X 1,000 while on40. Heat roller (H/R) Z or P 160 *11

41. Fuser entrance guide Z or P42. Pressure roller (P/R) Z or P 160 *1243. Cleaning felt roller 80 *13

Fuser 44. Thermistor Z or P >unit 45. Scraper (for H/R) 80 *14

46. Fuser exit guide Z or P

47. Exit roller A48. Scraper (for P/R) Z or P >49. Heat roller cleaning blade A > *1550. H/R drive gear S

(tooth faces and idler shafts)51. GCB bushing L

Drive (including main motor section,

system paper feed section and fuser unit)52. Main motor drive unit gears W *1653. Toner cartridge drive W

gear shaft

ADU

Item to checkArea RemarksClean at

LubricateReplace Check

80,000 copies x 1,000 while on71. Pick-up roller 80

72. Feed roller (main) 8073. Feed roller (sub) A74. Separation roller 80

ADU 75. Transport roller A76. Empty sensor Z

77. Jam sensor Z

78. Side guide sensor Z

79. End sensor Z

Lubrication times: None

ADU counter


Front sectional view

12 15 17 18 2019

13

9

14

3332

39

10 16 22 23 24 25

26

24

6

38

7176787579

49

2223 24

43

44

41

4647 45 48 40 4278

36 37 35

3

77

27

30

28 29

53

31

72 73

74


Rear side view

21

5052

34

34


Explanation of items in the “REMARKS” column of the Periodic Inspection Check List

*1 Main blade

Clean the main blade with a cloth which should be soaked in water and then squeezed tightly. If

poor cleaning occurs due to the adhesion of paper dust, etc., the edge of the blade has been

damaged.

Replace the blade regardless of the number of copies made so far.

*2 Recovery blade

If the edge of the blade is damaged, replace the blade regardless of the number of copies made so

far.

*3 Separation claw

If the tip of the separation claw has been damaged, replace the claw regardless of the number of

copies made so far.

Clean the tip of the claw by lightly wiping with a dry cloth. After cleaning, make sure to remove bits

of lint from the claw. In addition, be sure to apply patting powder (lubricant) to the separation claw

after cleaning the claw and when replacing the claw or drum.

*4 Drum

Refer to section “3.2 Inspection and Cleaning OPC Drum”.

*5 Clean the white shading board and the original glass at the same time.

If the shading board is stained, a white band may occurr on the copy movement direction. Do not

touch the surface of the shading board with your bare hand after cleaning.

*6 Air filter

If the air filter is dirty, replace it.

*7 Charger wire and case

Clean the inner surface of the charger case and the charger wire with a cloth which should be

soaked in water and then squeezed tightly.

*8 Grid

Remove the grid from the main charger. Clean the grid with a pad (service part) moistened with

water.

*9 Developer material

After replacing the developer material, be sure to adjust the corresponding auto-toner sensor.

*10 Front shield

Clean it with a cloth which should be soaked in water and then squeezed tightly.

*11 Heat roller

*12 Pressure roller

*13 Cleaning felt roller

Refer to section “3.4 Checking and Replacing Cleaning Felt Roller” of this Service Handbook.

*14 Scraper

If the tip of any of the scraper claws is chipped, replace it regardless of the number of copies made

so far. If toner adhering to the scraper claw is forcibly scraped off, it may be damaged.

Therefore, if the tip of the claw is heavily coated with toner, replace the claw.

Refer to section “3.5 Checking and Cleaning Upper and Lower Heater

Roller”.


*15 Heat roller cleaning blade

Refer to section “3.6 Checking and Cleaning Heat Roller Cleaning Blade” of this Service Handbook.

*16 Apply white grease to the main motor drive unit gears (shown arrow).


2.4 Oiling Cycle Table

*Number Item to Lubricate Type of Oil

34 Paper-feed system drive gears (tooth faces) White grease 80

50 Heat roller drive gears (tooth faces and idler shafts) Silicone oil 80

51 GCB bushings Launa 40 80

(including paper feed section and fuser unit)

59 Cleaner drive gear White grease 80

60 Timing pulley shafts White grease 80

53 Toner cartridge drive gear shaft White grease 80

Oiling Cycle

Number of copies x 1000

* The number is the same as that in the Periodic Inspection Check List.

Note: Do not apply oil to the rollers, belt and belt pulley.

2.5 Replacement Schedule of Disposable Parts and Supplies

* The number is the same as that in the Periodic Inspection Check List.

Replacement Cycle

(Number of copies x 1000)*Number Part Name Code

2 Main (cleaning) blade BL-2460 80 22 4

3 Toner bag TB-2460 20 24 3

6 Drum separation claw – 80 22 33

8 Drum OD-2460 80 24 1

23 Charger wire – 80

25 Grid – 160 20 9

27 Developer material ZD-2460 80 102 3

40 Teflon roller (upper heat roller) HR-2060-U 160 25 2

42 Rubber roller (lower heat roller) HR-2060-L 160 26 4

43 Cleaning felt roller SR-2060-H 80 25 12

45 Scraper (for heat roller) – 80 26 7

Parts List

Page Item

20 621 7


2.6 Jig List

Name

Door switch jig 101 1

Developer nozzle jig 101 7

Grid cleaning pad 101 6

Wire holder jig 101 3

Doctor sleeve jig 101 4

Developer unit cap jig 101 2

Current measuring jig 101 10

Drum shaft jig 101 5

Parts List

Page Item

September 1997 © TOSHIBA CORP. 3 - 1 2460 SUPPLIES

3. PRECAUTIONS FOR STORING AND HANDLING SUPPLIES

3.1 Precautions for Storing TOSHIBA SuppliesA. Toner and Developer

Toner and developer should be stored in a place where the ambient temperature is below 35˚C

(95˚F) and should also be protected against direct sunlight during transportation.

B. OPC Drum

Similarly to the toner and developer, selenium drums should be stored in a dark place where the

ambient temperature is below 35˚C. Be sure to avoid those places where drums may be subjected

to high humidity, chemicals and/or their fumes.

C. Cleaning Blade and Heat-Roller Blade

These items should be stored in a flat place where the ambient temperature is below 35˚C and

should also be protected against high humidity, chemicals and/or their fumes.

D. Heat Roller and Pressure Roller

Avoid those places where heat rollers may be subjected to high humidity, chemicals and/or their

fumes.

E. Copy Paper

Avoid storing copy paper in a place where the humidity is high.

After a package is opened, be sure to place and store it in a storage bag. During wet or winter

seasons where the temperature varies much from high to low due to room heating, etc. or where the

humidity is high, pull out the cassette from the machine, and put it together with the paper inside in

a storage bag upon the completion of copying for the day. Also, instruct the users to do the same.

3.2 Inspection and Cleaning OPC DrumA. Precautions for Handling

(1) Use of gloves

If fingerprints or oils adhere to the drum surface, characteristics of the photoconductor may

degrade, affecting the quality of the copy image; therefore, do not touch the drum surface with

your bare hands.

(2) Removing and reinstalling drums

Since the OPC drum surface is very sensitive, be sure to handle the drum carefully when install-

ing and removing it so as not damage its surface.

Be sure to apply “patting powder” (lubricant) to the entire surface of the drum and separation

claw before installing the drum into the machine.

When the drum has been replaced with a new one, 0 (zero) must be input to clear the drum life

counter (Setting mode “08”, code “401”).

Notes: 1. Application of the patting powder is to reduce the friction between the drum, cleaning blade,

and separation claw. If the application of patting powder is neglected, the drum and cleaning

blade may be damaged.

2460 SUPPLIES 3 - 2 September 1997 © TOSHIBA CORP.

2. When paper fibers adhere to the cleaning blade edge, they may reduce the cleaning

efficiency and, in addition, may damage the blade and the drum. So, if any fibers are

found adhering to the blade, be sure to remove them carefully using a soft pad.

(3) Installation of Machine and Storage of Drum

Avoid installing the machine in such places where it may be subjected to high temperature, high

humidity, chemicals and their fumes.

Do not leave drums in a bright place for a long time, otherwise the drum will fatigue and will not

produce sufficient image density immediately after being installed in the machine.

However, this effect may decrease as time elapses.

(4) Cleaning the Drum

At periodic maintenance calls, wipe clean the entire surface of the drum using the designated

cleaning cotton. Use a sufficient thickness of cleaning cotton so as not to scratch the drum

surface inadvertently with your fingertips or nails. Also, remove your ring and wristwatch before

starting cleaning work to prevent accidental damage to the drum.

Be sure not to use alcohol, selenium refresher and other organic solvents or silicone oil as they

will have an undesirable effect on the drum.

(5) Scratches on OPC Drum Surface

If a scratch exists on the surface through which the aluminum substrate can be seen, no copy

image will be produced on this area and, in addition, the cleaning blade will be damaged so

replacement with a new drum will be necessary.

(6) Collecting Used OPC Drums

Regarding the recovery and disposal of used OPC drums, it is recommended to follow the relevent

local regulations or rules.

3.3 Checking Drum Cleaning Blade(1) Precautions for Handling

Pay attention to the following points as the cleaning blade life is determined by its edge condition:

1 Do not allow a hard object to hit on or rub against the blade edge. Do not rub the edge with a

cloth.

2 Do not leave oil (or fingerprints, etc.) on the edge.

3 Do not put solvents such as thinner, etc. on the edge.

4 Do not deposit dirt such as paper fibers, etc, on the blade.

5 Do not place the blade near a heat source.

September 1997 © TOSHIBA CORP. 3 - 3 2460 SUPPLIES

3.4 Checking and Replacing Cleaning Felt Roller(1) Precautions for Handling

Never allow solvents such as thinner, etc, to adhere to the cleaning felt roller.

(2) Poor Heat-Roller Cleaning and Countermeasures

Poor heat-roller cleaning should be judged by the deposited toner on the roller. When the felt roller

has heavy toner deposits, the heat-roller surface may be stained with toner. If this happens, replace

the cleaning felt roller.

The cleaning felt roller will be gradually degraded due to subjection to the heat from the heat roller

over a long period of time; therefore, replace it preferably after about 80,000 copies have been made.

3.5 Checking and Cleaning Upper and Lower Heat Rollers(1) Precautions for Handling

A Upper Heat Roller

1 Do not leave oil (fingerprints, etc.) on the heat roller.

2 Be extremely careful not to allow a hard object to hit on or rub against the roller because the

thin Teflon layer coated on the aluminum substrate is easily damaged and, if damaged, will

result in poor drum cleaning.

B Lower Pressure Roller

1 Do not leave oil (fingerprints, etc.) on the roller surface.

(2) Checking

1 Check for staining and damage to the heat roller and clean or replace if necessary.

2 Clean the separation claws and check for chipped claws.

3 Check for cleaning condition of cleaning felt roller.

4 Check the thermistor for proper contact with the heat roller.

5 Check the fused condition of the toner image.

6 Check the heat rollers for proper rotation.

(3) Cleaning Procedure for Heat Rollers

When the heat roller becomes dirty, it will cause paper jamming. In that case, wipe the roller surface

clean with cotton soaked in alcohol or heat-roller cleaner “RC60” which contains silicone oil. For a

better cleaning effect, clean the roller while it is still warm.

Notes: 1. Be careful not to rub against the Teflon-coated surface with fingernails or hard objects because it

is easily damaged. Do not use silicone oil on the upper heat roller.

2. When the heat roller has been replaced, 0 (zero) must be input to clear the power-on time counter

(mode “08”, code “402”) and the fuser running counter (mode “08”, code “403”).

2460 SUPPLIES 3 - 4 September 1997 © TOSHIBA CORP.

3.6 Checking and Cleaning Heat Roller Cleaning Blade(1) Precautions for Handling

Do not allow a hard object to hit on or rub against the blade edge.

(2) Checking

When the blade edge becomes dirty, clean it with a cloth soaked in alcohol.

If the cleaning blade is damaged, replace it.

toshiba dp2460 sh

Documents

dither process

gamma slope correction

current measuring jig

interrupt values zzz

shaft fastening bush

transfer separation transformer earthed

apply patting powder

jig detection connector