HP DJ T1100_T610 service manual.pdf

HP Designjet

T1100/T1100ps/T610/

T1120/T1120ps/T620

printer series

Version 9.1

August 22, 2009

For HP internal use only

Warranty

Warning

WARNING

The Warning symbol calls

attention to a procedure,

practice, or the like, which, if

not correctly performed or

adhered to, could result in

personal injury. Do not

proceed beyond a Warning

symbol until the indicated

conditions are fully understood

and met.

CAUTION

The Caution symbol calls

attention to an operating

procedure, practice, or the like,

which, if not correctly

performed or adhered to, could

result in damage to or

destruction of part or all of the

product. Do not proceed

beyond a Caution symbol until

the indicated conditions are

fully understood and met.

Company 2009

This document contains

proprietary information that is

protected by copyright. All

rights are reserved. No part of

this document may be

photocopied, reproduced, or

translated to another language

without the prior written

consent of Hewlett-Packard

Company.

The information contained in

this document is subject to

change without notice.

Hewlett-Packard makes

no warranty of any kind

with regard to this

material, including, but

not limited to, the implied

warranties of

merchantability and

fitness for a particular

purpose.

Hewlett-Packard shall not be

liable for errors contained

herein or for incidental or

consequential damages in

connection with the furnishing,

performance, or use of this

material.

The procedures described in

this manual are to be

performed by HP-qualified

service personnel only.

Electrical shock hazard

Serious shock hazard leading

to death or injury may result if

you do not take the following

precautions:

• Ensure that the AC power

outlet (mains) has a protective

earth (ground) terminal.

• Disconnect the Printer from

the power source prior to

performing any maintenance.

• Prevent water or any other

liquids from running onto

electrical components or

circuits, or through openings in

the enclosure.

Electrostatic discharge

Refer to the beginning of

Chapter 4 of this manual, for

precautions you should take to

prevent damage to the Printer

circuits from electrostatic

discharge.

Safety symbols

General definitions of safety

symbols are given immediately

after the table of contents.

Content Management Department,

Barcelona Division,

Hewlett-Packard Espanola, S.A.

Avda. Graells, 501

08190 Sant Cugat del Vallès

Spain

Table of Contents

1 Troubleshooting

2 System Error Codes

3 Service Tests and Utilities

4 Service Calibrations

5 Parts and Diagrams

6 Removal and Installation

7 Preventive Maintenance

For information about Using this Manual, please refer to the next page.

Table of Contents

Using this manual

Purpose

This Service Manual contains information necessary to test, calibrate and

service:

HP Designjet T1100 Printer 24 inch (Model Q6683A)

HP Designjet T1100 Printer 44 inch (Model Q6687A)

HP Designjet T1100ps Printer 24 inch (Model Q6684A)

HP Designjet T1100ps Printer 44 inch (Model Q6688A)

HP Designjet T610 Printer 24 inch (Model Q6711A)

HP Designjet T610 Printer 44 inch (Model Q6712A)

HP Designjet T620 Printer 24 inch (Model CK835A)

HP Designjet T1120 Printer 24 inch (Model CK837A)

HP Designjet T1120 Printer 44 inch (Model CK839A)

HP Designjet T1120ps Printer 24 inch (Model CK838A)

HP Designjet T1120ps Printer 44 inch (Model CK840A)

For information about using these printers, refer to the corresponding User’s

Guide.

Readership

The procedures described in this Service Manual are to be performed by HP

Certified service personnel only.

Part numbers

Part numbers for printer options, accessories and service parts are located in

Chapter 5 Parts and Diagrams on page 5-1 .

Conventions

Any text that uses the blue underlined format (except this one) is a link that

directs you to the page number of the reference. If you are viewing the

document as a PDF file, you can click on that link to be taken there directly.

HP Designjet T Series — Service Manual

Troubleshooting

Using the Front Panel 1-3

General Troubleshooting 1-4

Introduction 1-4

Troubleshooting System Error Codes 1-4

Performing a Service Test on a failed Assembly 1-4

Performing the Necessary Service Calibrations 1-4

The Front Panel is blank 1-5

Solving Print Quality Problems 1-5

The Printer does not Power ON 1-5

The Printer Continuously Rejects Printheads 1-5

Cover Sensors are not Working 1-5

The Line Sensor has Problems Detecting Media 1-5

Banding at variable extreme environmental conditions 1-6

Worm marks on HP Coated media with light area fills 1-6

Solving Media-Handling Problems 1-7

Print quality troubleshooting 1-9

Print Quality Troubleshooting Actions 1-9

The Service Image Quality Diagnostic Print 1-9

Reading the Diagnostic Print Results 1-11

Diagnostic Part 1: Printhead Reliability 1-11

Diagnostic Part 2: Printhead Alignment 1-12

Diagnostic Part 3: Printheads & Paper Advance 1-13

The Advanced Diagnostic Prints 1-15

Reading the Advanced Diagnostic Print Results 1-16

Troubleshooting Print Quality Problems 1-24

Print Quality General Advice 1-24

Horizontal Lines Across the Image (Banding) 1-24

Lines are Missing, Too Thin, or Too Thick 1-25

Problems with Stepped Lines 1-26

Lines are Printed Double or in Wrong Colors 1-27

Lines are discontinuous 1-27

Lines are Blurred (Ink Bleeds from Lines) 1-28

Problems with Graininess 1-28

Paper is not Flat 1-29

Ink marks on the paper 1-30

Horizontal smears on the front of coated paper 1-30

Ink marks on the back of the paper 1-30

Problems with the Edges of objects 1-31

Stepped or not sharp 1-31

Darker than expected 1-31

Black and white prints do not look neutral 1-31

Horizontal lines at the end of a cut sheet print 1-31

Vertical lines of different colors 1-31

White spots on the print 1-32

HP Designjet T Series — Service Manual

1-1

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