hp designjet 4000 service manual

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Page 1: HP DesignJet 4000 Service Manual

7/27/2019 HP DesignJet 4000 Service Manual

http://slidepdf.com/reader/full/hp-designjet-4000-service-manual 1/356

 

Page 2: HP DesignJet 4000 Service Manual

7/27/2019 HP DesignJet 4000 Service Manual

http://slidepdf.com/reader/full/hp-designjet-4000-service-manual 2/356

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Page 3: HP DesignJet 4000 Service Manual

7/27/2019 HP DesignJet 4000 Service Manual

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Page 5: HP DesignJet 4000 Service Manual

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Introduction 1-2

Troubleshooting System Error Codes 1-2

Performing a Service Test on a Failed Assembly 1-2Performing the Necessary Service Calibrations 1-3

Solving Print Quality Problems 1-3

The Printer does not Power ON 1-3

The Printer Continuously Rejects Printheads 1-3

Cover Sensors are not Working 1-3

The Line Sensor has Problems Detecting Media 1-4

Troubleshooting Shutdowns 1-5

Vacuum suction much lower at high altitudes 1-6

Banding at variable extreme environmental conditions 1-6

Printhead Crashes/Smears on High Density Prints Using Coated Media 1-6

Banding due to Ink Cartridge replacement while printing 1-7

34" Rice Paper not supported 1-7

Cut Sheet rice paper loading failure 1-7

Worm marks on HP Coated media with light area fills 1-7

Solving Media-Handling Problems 1-8

Using the Buzzer at Power-up to Troubleshoot 1-9

Using the Power-up Sequence to Troubleshoot 1-10

Using the Power Switch LEDs to Troubleshoot 1-13

Using the PCA LEDs to Troubleshoot 1-14

Page 8: HP DesignJet 4000 Service Manual

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What are Ink Supplies? 3-2

Ink Cartridges 3-2Printheads 3-3

Printhead Cleaners 3-3

General Information About the Ink Supplies 3-4

General Precautions When Handling Ink Supplies 3-4

Priming the Ink System 3-5

When Should You Replace the Ink Supplies? 3-5

Obtaining Ink Cartridge Information 3-6

Obtaining Printhead Information 3-7

Ink Cartridge Status Messages 3-9

Ink Cartridge Status While Printing 3-9

Ink Cartridge Status While Replacing 3-9

Printhead Status Messages While Printing 3-10

Printhead Status Messages While Replacing 3-10

Printhead Cleaner Status Messages While Printing 3-11

Printhead Cleaner Status Messages While Replacing 3-11Summary of Solving Ink Supplies Problems 3-12

Troubleshooting Printhead Error Codes 3-13

Carriage Interconnect Wiper 3-14

Warranty Information for Ink Supplies 3-15

Warranty Information for Printheads 3-15

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Introduction 4-2

Diagnostics - Self Test 4-2

Service Tests (Diagnostics) 4-3

Entering the Service Tests Menu 4-5

1. Scan Axis Test 4-7

2. Media Drive Test 4-12

3. Electronics Module Test 4-17

4. Carriage Assembly Test 4-27

5. Sensors Test 4-28

6. Ink Delivery System Test 4-32

7. SVS/Aerosol Fan Test 4-33

8. Air Pump System Test 4-34

9. Vacuum Fans Test 4-35

10.1 Others >>> Bag Broken Recovery 4-36

10.2 Others >>> IO Information 4-39

10.3 Others >>> Unit Information 4-4111. EEROM Reset 4-43

12. Set Unit Configuration 4-45

13. Error 71:19 Recovery 4-46

I/O Tests 4-48

Service Utilities 4-50

Entering the Service Utilities Menu 4-51

1. Turn Drive Roller 4-53

2. Prime Tubes 4-55

3. Set SN 4-59

4. Reset Life Counters 4-60

5. Diagnostic Print 4-62

6. Sleep Mode 4-63

7. Replace Cutter 4-64

8. Set RTC Clock 4-65

9. Carriage Setup 4-66

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3. Paper Advance Calibration 5-9

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Print Quality 6-2Print Quality Troubleshooting Actions 6-2Choosing the Correct Print Quality Settings 6-3

How to Use the Service Image Quality Diagnostic Print 6-5What is the Service Image Quality Diagnostic Print? 6-5Considerations for Printing the Diagnostic Print 6-5

Printing the Service Image Quality Diagnostic Print 6-6Diagnostic Part 1: Alignment Test 6-7Diagnostic Part 2: Printheads & Paper Advance Test 6-8Diagnostic Part 3: Printhead Problems 6-9

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Diagnostic Part 3: Printhead Problems 6-9Nozzle Print Test 6-11No Printing Defects Found in the Diagnostic Print 6-12Print Quality General Advice 6-12

Troubleshooting Print Quality Problems 6-13Horizontal Lines Across the Image (Banding) 6-13Advanced Banding Troubleshooting for Experts 6-14

Dark Light Zone Banding (DLZB) 6-17Lines are Missing or Thinner than Expected 6-18Solid Bands or Lines Printed Over the Image 6-19Problems with Graininess 6-20Print Smudges when Touched 6-20Paper is not Flat 6-21Defect Near the Top of the Print 6-22Problems with Stepped Lines 6-23Lines are Printed Double or in Wrong Colors 6-23Lines are Blurred (Ink Bleeds from Lines) 6-24

Problems with Color Accuracy 6-24Problems with PANTONE Color Accuracy 6-25Color Matching Between Different HP Designjet Printers 6-26Problems with Image Clipping 6-28Image is Completely Blank 6-29Output Only Contains a Partial Print 6-29Image is in One Portion of the Printing Area 6-30Image is Unexpectedly Rotated (PostScript Driver) 6-30Print is Distorted or Unintelligible 6-31Print is a Mirror Image of the Original 6-31

One Image Overlaps Another on the Same Sheet 6-31No Output from the Printer 6-32Pinchwheel Marks when using Glossy Media 6-32VLS in 1 Pass Printmodes 6-33VLS in First 3 Meters after a Media Load 6-34Bubbles (Only occurs in Cyan, Magenta and Yellow) 6-34Black Printhead: Decap Problem 6-35Paper Expansion - Paper Advance (PEPA) 6-36Bidirectional Offset in Light Color Density Areas 6-37Ink Contamination on Yellow Printhead 6-37Satellites in Black Lines 6-38

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Do you see banding (white lines) all along the

customer plot, not taking into account the color?

WHITE LINES

Are you seeing nozzles out in Part 3 of

Image Quality Diagnostic Print?

yes / no

yes

no

Media Advance actions:

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yes

Do the nozzles out alternate between one yes and one no in Part 3

of the Image Quality Diagnosti c Print? See image 1 on page 6-16

yes / no

yes

no

Bubbles actions:

- Select the correct Print Quality setting

(see the table on page 6-3).

- If the problem persists, perform a

Printhead recovery. (Activating the intensive

checking option in the front panel will

guarantee print quality performance while

continuing to see the problem.)

- If the problem persists, replace the faulty

Printhead.

Are there a significant amount of nozzles

out? See image 2 on page 6-16

yes / no

yes

no

Nozzles out actions:

- Select the correct Print Quality setting

(see the table on page 6-3).- Perform a Printhead recovery.

- If the problem persists , replace the faulty

Printhead

Our printers are able to achive optimal Image Quality performance

even with some nozzles out (see image 3 on page 6-16).

Are you seeing white banding somewhere in Part 2 of the Image

Quality Diagnostic Print and it matches with the color where you

are seeing nozzles out?

yes / no

yes

no

Nozzles out actions:

- Select the correct Print Quality setting (see the table

on page 6-3).

- If the problem persists, perform a Printhead recovery.

yes / no

no

yes

Media Advance actions:

- Select the correct Print Quality setting

(see the table on page 6-3).

- We s trongly recommend using HP media.

- If the problem persists, Heavyweight

Coated paper should be used.

- If the problem persists, perform a Paper

Advance Calibration.Refer to Flowchart BOTH(Dark and White Lines)

3ULQW4XDOLW\

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DARK LINES

Do you see dark lines all along

the customer plot?

yes / no

yes

no

Media Advance actions:

- Select the correct Print Quality setting (see the table on page 6-3).

- We strongly recommend using HP media.

- If the problem persist s, Heavyweight Coated paper s hould be used.

- If the problem persists, perform a Paper Advance Calibration.

Note 1: How long have you had media loaded? There is a specific problemwhen printing with a brand new unit using Heavyweight Coated paper. It is

normal to see dark lines for the first few meters of paper. After printing for a

while, the paper advance should be st abilized and optimal print IQ should be

achieved without any further actions.

Note 2: Were you previously printing using Gloss y paper and now you have

t t d i ti i B d ? Th fi t f t f th l t b i i t d

Refer to Flowchart BOTH

(Dark and W hite Lines)

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started printing using Bond paper? The first few meters of the plot being printed

on Bond paper may have dark lines if the paper previously used was glossy

After a few plots this problem will disappear without any further actions.

Are you seeing dark lines in s ome areas and

white lines in others? Or are you seeing either

dark or white lines but not all along the plot?

BOTH (DARK and

WHITE LINES)

yes / no

yes

noAre you seeing white lines but only

in some areas of the plot (probably

containing the same based c olor?)

yes / no

yes

no

Refer to Flowchart

WHITE LINES

Are you printing a high ink density plot? Or are

you printing a plot that contains both high ink

density areas and low ink density areas?

yes / no

yes

no

Media Expansion actions:

- Select the correct Print Quality setting (see the table on page 6-3).

- We st rongly recommend using HP media.

- If the problem persists, Heavyweight Coated paper should be used.

Are you seeing a frequential banding composed by a darker

zone and a lighter zone? See image 4 on page 6-16.

yes / no

yes

no

This problem mainly occurs after inserting new Printheads (specially

cyan), or when loading Heavyweight Coated paper for the first few

meters.

Dark Light Zone Banding actions:

- Select the c orrect Print Quality setting (see t he table on page 6-3).

- Perform a Printhead Recovery if there is a significant amount of

nozzles out in Part 3 of the Image Quality Diagnostic Print.

- Perform a Printhead Alignment.

- If the problem persists, perform a Paper Advance Calibration.

- If the problem persists, replace the Printhead that is showing

misdirected nozzles.

Do you see

banding? What

type?

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Printer Support 7-2

Center Covers 7-4

Electronics Module 7-6

Right Hand Cover 7-8

Left Hand Cover 7-10

Right Hand Assemblies 7-12Left Hand Assemblies 7-14

Carriage Assembly 7-16

Scan-Axis Assemblies 7-18

Drive Roller and Media-Axis Motor 7-20

Paper Path Assemblies 7-22

Center Guide and Pinchwheel Assembly 7-24

 

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Media Entry Assemblies 7-26

Miscellaneous Parts 7-28

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Introduction 8-2Window 8-4Right Cover 8-6Left Cover 8-9Top Cover 8-11Rear Door 8-16Right Connector Cover 8-18Left Connector Cover 8-19Front Panel 8-20Service Station 8-23Vacuum Fan 8-27

Aerosol Fan 8-29Drop Detector 8-31Ink Supply Tubes and Trailing Cable 8-33ISS to Cartridge Cables 8-38Cutter Assembly 8-39Ink Supply Station (ISS) 8-40APS Assembly 8-42Most Left Spittoons 8-43Middle Left Spittoons 8-44Encoder Strip and Encoder Sensor 8-45

Carriage PCA 8-48Carriage Flex Cables 8-51Carriage Assembly 8-53Belt Assembly 8-58

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e t sse b y 8 58Scan-Axis Motor 8-59Media-Axis Motor 8-62Interconnect PCA 8-64EIO to PCA Interface Card 8-67Gamut PCI PCA 8-69Memory Module 8-72Main PCA Formatter 8-74Hard Disk Drive (HDD) 8-76Power Supply Unit (PSU) 8-78PrintMech PCA 8-84Formatter Battery 8-87Line Sensor Assembly 8-89Media Deflector 8-91Front Platen 8-92Center Platen 8-94Cartridge Trays 8-98Input Roller 8-99

Push-Push Mechanism 8-100Media Sensor 8-101Encoder Disc and Sensor 8-103Media Lever Assembly 8-106Media Lever Sensor 8-108Pinchwheel Assembly 8-111Center Guide 8-115Drive Roller 8-118Right Rollfeed Module Assembly 8-125Right Spindle Lever 8-128

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