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Chapter 5Troubleshooting

5.1 Troubleshooting....................................................................................................5-15.2 Unit Level Troubleshooting .................................................................................5-3

5.2.1 Printer does not operate at power on................................................................................... 5-4 5.2.2 Error is detected ..................................................................................................................... 5-5 5.2.3 Failure occurs during printing .............................................................................................. 5-6 5.2.4 Printer does not feed the paper correctly ............................................................................ 5-7 5.2.5 Control panel operation is abnormal.................................................................................... 5-8

5.3 Unit Repair - C206 PSB/PSE Board.....................................................................5-9

5.3.1 Unit Repair - C200 MAIN Board........................................................................................... 5-115.4 Repair of the Printer Mechanism.......................................................................5-13
http://stls600.pdf/

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Stylus Color 600 Service Manual

Rev. A5-2

Error statusIndicators

Recovery

Power Ink Out(Black)

Ink Out(Color)

Paper Out

Paper Out --- --- --- On Load paper by pressingload/eject button.

Paper jam condition --- Off Off Blink Eliminate a paper then pressload/eject button.

No Ink cartridge or Inkend(black)

--- On --- --- Install a new black ink cartridgeby pressing load/eject button for3-seconds.

No Ink cartridge or Inkend(color)

--- --- On --- Install a new color ink cartridgeby pressing load/eject button for3-seconds.

Maintenance request Blink Blink Blink Blink Change the waste ink draintank and reset the EEPROM.

Fatal error Blink On On Blink Turn on the printer and turn iton again. If printer can notrecover,repair the suitable part.

Table 5-3. Printer Condition and Panel Status

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Chapter 5 Troubleshooting

Rev. A 5-3

5.2 Unit Level Troubleshooting

When a problem occurs, you can identify the defective unit according to the symptoms exhibited.The table below lists the symptoms of certain problems. Once the problem is identified, refer to theflowchart that corresponds to the problem.

Symptom Problem Flowchart No.

Printer does not operate atpower on

LEDs do not light up.Printer mechanism does not operate.

Section 5.2.1

Error is detected Error is indicated by LED indication. Section 5.2.2

Failure occurs during printing Printing is not performed.Abnormal printing(missing dot, etc.)Print quality is poor

Section 5.2.3

Printer does not feed the papercorrectly

No paper is fed.Paper feed is irregular.Paper jam occurs.

Section 5.2.4

Control panel operation isabnormal

No response to button access. Section 5.2.5

Table 5-4. Symptom and Problem

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Rev. A5-4

5.2.1 Printer does not operate at power on

Is ACpower voltagenormal?

YES

Is thefuse(F1) of

power supply

Is theoutput voltageof power supply

normal?

Exchange the mainboard.

NO

Input normalpower supply.

NO

Exchange the fuse.Disconnect CN10 inthe main board andturn the power onagain.

YES

Check output voltageof CN2 in the powersupply board.

Exchange the powersupply board

Check the motor andhead. Refer to therepair item of theprinter mechanism.

START

END

YES

NO

boardopened?

YES

Is thefuse opend

again?

NO

Figure 5-2. Flow Chart 1

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Rev. A 5-5

5.2.2 Error is detected

START

Check the errormessage.(Refer toTable5-3)

Is it carriageerror?

No ink cartridgeerror?

Maintenance Error

Exchange the wasteink absorber and reset

the counter.(Refer to 1.4.2)

NO

NO

Turn off the printer,and move the carriageby hand.Yes

Exchange the ink-cartridge with newone.

Yes

Does errorappear again?

Check ink cartridgesensor and exchangethe head if it's ubnormal.

END

Does the carriagemove smoothly?

Yes

Check CR motor.Exchange the mainboard if there is noproblem.

Is the problemsolved?

Refer to 5.4Repair of the printermechanism.

END

NO

Yes

NO

Yes

NO


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Rev. A5-6

5.2.3 Failure occurs during printing

START

Is printingcarried out

O.K?

Is printingqualitynormal?

Is theproblemsolved?

Perform printingadjustment.(Refer to Chapter4)

Exchange the inkcartridge with newone and performself-test.

Is the

problem

solved?

Refer to 5.4 Repair ofthe printer-mechanism.

Is the

ENDEND

Is all

cables connectedto the main

board?

Perform cleaning

Connect cables

Is the

Refer to 5.4 Repair ofthe printer-mechanism.

Is the

END

Replace the Mainboard

NO

YES

NO

NO

YES

YES

NO

YES

YES

NO

YES

NO

YES

NOYES

Perform self-test printing

problemsolved?

problemsolved?

problemsolved?

NO


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Rev. A 5-7

5.2.4 Printer does not feed the paper correctly

START

Arepapers setin the ASFcorrectly?

Doesthe PF rollerand platen

rotate?

Remove any obstructionin the paper path ifthere is any.

Perform cleaning forthe roller of paper path.

Is the

Is the

PF motor

running?

Refer to 5.4.Repairof the printermechanism.

END

Check the PF motor.If there is no problem,replace the main board.

END

NO

YES

NO

YES

YES

NO

Set the paper correctly

NO

problemsolved?


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Rev. A5-8

5.2.5 Control panel operation is abnormal

START

Is thecontrol panel

connectedcorrectly?

Connect thecontrol panelcorrectly.


Replace the controlpanel.


END

Replace themain board.

END

YES

NO

NO

YES

NO

YES


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Rev. A 5-9

5.3 Unit Repair - C206 PSB/PSE Board

This section describes the problems related to the power supply board(C206 PSB/PSE). The table nextpage provides various symptoms, likely causes, and checkpoints. The checkpoints refer to waveforms,resistance, and other values to be checked to evaluate the operation of each component.

Symptom Condition Cause Checkpoint Solution

The printerdoes notoperate at all.

+42V line isdead.

F1 is open. Check F1 by using atester.

Replace F1.

Transformer coilsare open.

Check the waveformat the drain of Q1.

Replace T1.

Switching FET (Q1)is dead.

Check drain side. Replace Q1.

Feed backtransistor(Q2, Q3)are dead.

Check corrector side. Replace Q2or Q3.

+42 V line isabnormal.

Check following parts.

ZD87, ZD83

ZD51,ZD81`ZD86

PC1

Replace suitableparts.

Table 5-5.C206PSB Power Supply Board

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Rev. A5-10

Table 5-6. C206PSB Power Supply Board (Con.)


+5V line isdead.

IC51 (L4962E) isdead.

Check the oscillation(5-pin) and switching (7-pin) waveform of IC51.(5-pin)

(7-pin)

ReplaceIC51.

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Rev. A 5-11

5.3.1 Unit Repair - C200 MAIN BoardThis section describes the problems related to the main controller board(C200 MAIN). The table belowprovides various symptoms, likely causes, and checkpoints. The check points refer to waveforms,resistance, and other values to be checked to evaluate the operation of each component.

Symptom Condition Cause Checkpoint SolutionThe printerdoes notoperate at all.

CPU doesnot operate.

The resetcircuit does notoperate.

Check the waveform ofthe +5V and /Reset signal(IC8=5,1-pin/IC9=7,6-pin)

Replace IC8 orIC9.

Control ROM isnot selectedcorrectly or itsdead.

If you can not find thewaveform at 2-pin of IC3,the IC1 is dead, and if youcan not find it at 20-pin ofIC3, the IC3 is dead.

Replace IC1 orIC3.

RAM is notselectedcorrectly or itsdead.

If you can not find thewaveform at 29,14-pin ofIC4, the IC1 is dead, andif you can not find it at 28-pin of IC4, the IC4 isdead.

Replace IC1 orIC 4.

CRU2 is dead. Check the waveform at27,28-pin of IC1.

Replace theCRU2.

The carriagedoes notoperatenormally.

Carriagemotor doesnot operateat all.

IC2 is dead. Check the waveform at72,73 and 75,76 pin ofIC14.

Replace IC2.

IC14 is dead. Check the waveform at6-9 pin if IC14.

Replace IC14.

Table 5-7. Repair of the C200 Main Board

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Rev. A5-12


Printing isabnormal.

Printing is notexecute.

IC7 is dead. Check the trapezoidalwaveform at 3-pin of Q7on C200main board.

Replace IC6,Q7, or Q9.

IC2 is dead. Check the control signalof trapezoidal from IC2.(at 80 pin of IC2)

Replace IC2.

Paper feedoperation isabnormal.

Paper feedmotor does notwork.

IC2 is dead. Check the outputwaveform of at 55, 56,57, 58 pin of IC2.

Replace IC2

IC15 is dead. Check the output

waveform of at 6, 7, 8, 9pin of IC15.

Replace IC15

Table 5-8. Repair of the C200 Main Board(Con.)

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Rev. A 5-13

5.4 Repair of the Printer Mechanism

This section provides instruction for repairing the printer mechanism. It describes various problems,symptom, likely causes, checkpoints, and solutions. Select appropriate symptom from the table and checkeach parts and its function as described in the checkpoint.


Abnormal pumpmechanismoperation

Abnormal PF motoroperation when thepower is turned on.

Foreign substancesare loaded in the PFgears.

Manually drive theplaten drive gearand check it if itrotates normally.

Remove anyforeignsubstances.

The PF motor isdefective.(Refer to Table5-1)

Check the inner coilresistance and seeif there is anydisconnection of the coil.

Exchange the PFmotor.

Ink is notabsorbed or is

poorly absorbed.

Used ink does notgo through the

waste ink tube.

The pump tube iscrashed.

Check the tubevisually.

Fix the crashedpart

by the airgun.Capping rubber isdamaged ordeformed.

Check the cappingrubber visually.

Replace the capmechanism.

The tube is out ofthe cap.

Check if the tube isout of the cap visually.

Connect the tubeproperly.

Pump bulb is notclosed atabsorption.

Check the bulboperation visually.

Replace the capmechanism.

Abnormal carriageoperation.

Abnormal carriageoperation at poweron.

Foreign substancein the CR drivegear.

Check visually ifthere is anysubstances or not.


CR motor is

defective.

Check the inner coil

resistance and see ifthere is anydisconnection of the coil.

Replace the CR

motor.

Abnormal carriageoperation duringprinting.

Carriage movementis not smooth.

Check whether thecarriage movessmoothly whenmoved manually.

Clean andlubricate thecarriage guideaxis.

Check tension of thetiming belt.

Adjust tensionmechanism orexchange it.

Check if there is anyforeign substancesin the carriage path.


Printing is notperformed.

The carriagemoves, but noprinting isperformed.

Head FFC is out ofconnection.

Check if the headFFC on the board orcarriage isconnected surely.

Connect the FFCproperly.

The FFC isdisconnectedinside.

Check the FFC by usinga tester.

Replace the FFC.

I/C is defective. Install a new I/C andperform the self-test.

Replace I/C.

Head unit isdefective.

If the condition doesnot improve evenafter 2or 3 times

cleaning operation,replace the head unit andperform the self-test.

Replace the headunit.

Table 5-9. Repair of the Printer Mechanism

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Rev. A5-14

Symptom Condition Cause Check-point Solution

Abnormal printing Only a particular dotcauses abnormalprinting.

Print head surface isnot clean.(dot missing)

Perform the cleaningoperation severaltimes and checkprinting.

Perform thecleaning.

The head unit is

defective.

Perform the cleaning

operation severaltimes and checkprinting.

If condition does not

improve even afterthe cleaning, replacethe head.

Capping absorber istouching the headsurface.

Check the headabsorber visually.

Replace the headabsorber if it isdeformed.

A dot is not printedoccasionally.

Print head surfaceis not clean.(dot-missing)


Perform thecleaning.

The head FFC isdisconnected inside.

Check the FFC byusing a tester.

Replace the headFFC.

The head FFC is out

of connection.

Check if the head

FFC on the board orcarriage isconnected surely.

Connect the FFC

properly.

The head unit isdetective.


If condition does notimprove even afterthe cleaning, replacethe head.

I/C is defective. Install the new I/Cand perform self-test.

Replace I/C.

Black specks ordots.

The head FFC is outof connection.

Check if the headFFC on the board orcarriage isconnected surely.

Connect the FFCproperly.

The head unit isdetective.

Check connectionwith the head FFC.

Replace the head ifthere is noconnection problemwith the FFC.

A vertical line is notaligned.

Bi-directionalalignment is notadjusted.

Perform Bi-Dadjustment.

Refer to Chapter4.

White line appearsin the image data.

Head angle is notcorrect.

Perform head angleadjustment.

Refer to Chapter4.

Platen gap is notcorrect.

Perform platen gapadjustment.

Refer to Chapter4.

Dot shootingdirection is tiltedbecause headsurface is not clean


Perform thecleaning operation.

I/C is defective. Install a new I/C andperform the self-test.

Replace I/C.

Head unit isdefective.


Replace the headunit.

Table 5-10. Repair of the Printer Mechanism (Con.)

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5 15

Symptom Condition Causes Checkpoint Solution

Abnormal paperfeeding.

Paper is not fed. Friction of the PFroller.

Check if the PFroller rotates whenpaper is not fed.

Clean the PF rollerby the cleaningsheet. Replace the

PF roller if it doesnot recover.

Abnormal operationof the hopper.

Check movement ofthe ASF hoppervisually.

Replace ASF.

Malfunction of ASFdrive change-over.

Check if the ASFgear rotates visually.

Replace gears ofthe ASF drivechange-over.

Friction of the PFroller.

Check if the PFroller slips duringpaper feeding.

Clean the PF rollerby the cleaningsheet. Replace thePF roller if it doesnot recover.

Printer stops duringinitialization.

Fatal error appears. ASF sensor isdefective.

Check the signallevel of the ASFsensor.(Refer toTable 5-2)

Replace ASFsensor.

PE sensor isdefective.

Check the signallevel of the PEsensor.(Refer toTable 5-2)

Replace PE sensor.

HP sensor isdefective.

Check the signallevel of the HPsensor .(Refer toTable 5-2.)

Head FFC is

disconnected.

Check if the head

FFC is connected.

Connect the head

FFC.

CR motor isdefective.

Check the CR motorcable is connected.

Replace the CRmotor if there is noproblem in the cableconnection.

PF motor isdefective.

Check if the PFmotor cable isconnected.

Replace the PFmotor if there is noproblem in the cableconnection.

Table 5-11. Repair of the Printer Mechanism (Con.)

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