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Q1273A DesignJet 4000 printer

HP DesignJet 4000 printer (Q1273A)

MFG Part Number: Q1273A

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HP DesignJet 4000 printer series service manual

Q1273A Service Manual

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Manual contents and shortcuts

Conventions

Part Numbers

Table of Contents

Troubleshooting

Performing a Service Test on a Failed Assembly

Troubleshooting System Error Codes

Cover Sensors are not Working

Performing the Necessary Service Calibrations

Solving Print Quality Problems

The Printer Continuously Rejects Printheads

The Printer does not Power ON

The Line Sensor has Problems Detecting Media

Troubleshooting Media Jams/Printhead Crashes

Troubleshooting Shutdowns

Banding at variable extreme environmental conditions

Printhead Crashes/Smears on High Density Prints Using Coated Media

Vacuum suction much lower at high altitudes

34" Rice Paper not supported

Banding due to Ink Cartridge replacement while printing

Cut Sheet rice paper loading failure

Worm marks on HP Coated media with light area fills

Solving Media-Handling Problems

Using the Buzzer at Power-up to Troubleshoot

Using the Power-up Sequence to Troubleshoot

Using the Power Switch LEDs to Troubleshoot

Using the PCA LEDs to Troubleshoot

How to Interpret the Service Information Pages

Current Media, Printhead and Ink Information

Printer Usage Information

Calibrations Status

System Error Codes

Continuable and Non-Continuable Error Codes

System Error Codes and Warnings - Explanation

Ink Supplies Troubleshooting

What are Ink Supplies?

Printhead Cleaners

General Information About the Ink Supplies

General Precautions When Handling Ink Supplies

Priming the Ink System

When Should You Replace the Ink Supplies?

Obtaining Ink Cartridge Information

Obtaining Printhead Information

Ink Cartridge Status Messages

Ink Cartridge Status While Printing

Ink Cartridge Status While Replacing

Printhead Status Messages While Printing

Printhead Status Messages While Replacing

Printhead Cleaner Status Messages While Printing

Printhead Cleaner Status Messages While Replacing

Summary of Solving Ink Supplies Problems

Troubleshooting Printhead Error Codes

Carriage Interconnect Wiper

Warranty Information for Ink Supplies

Warranty Information for Printheads

Service Tests and Utilities

Diagnostics - Self Test

Entering the Service Tests Menu

1. Scan Axis Test

2. Media Drive Test

3. Electronics Module Test

4. Carriage Assembly Test

5. Sensors Test

6. Ink Delivery System Test

7. SVS/Aerosol Fan Test

8. Air Pump System Test

9. Vacuum Fans Test

10.1 Others >>> Bag Broken Recovery

10.2 Others >>> IO Information

10.3 Others >>> Unit Information

10.4 Others >>> Check Ink Supplies

11. EEROM Reset

12. Set Unit Configuration

13. Error 71:19 Recovery

Entering the Service Utilities Menu

1. Turn Drive Roller

4. Reset Life Counters

5. Diagnostic Print

7. Replace Cutter

8. Set RTC Clock

9. Carriage Setup

Service Calibrations

Entering the Service Calibrations Menu

1. Scan Axis Calibration

2. Service Station Calibration

3. Paper Advance Calibration

4. Drop Detector Calibration

5. Line Sensor Calibration

6. Platen Blue Line Calibration

7. Vacuum Calibration

8. Carriage Setup

Print Quality

Print Quality Troubleshooting Actions

Choosing the Correct Print Quality Settings

Considerations for Printing the Diagnostic Print

What is the Service Image Quality Diagnostic Print?

Printing the Service Image Quality Diagnostic Print

Diagnostic Part 1: Alignment Test

Diagnostic Part 2: Printheads & Paper Advance Test

Diagnostic Part 3: Printhead Problems

Nozzle Print Test

No Printing Defects Found in the Diagnostic Print

Print Quality General Advice

Horizontal Lines Across the Image (Banding)

Advanced Banding Troubleshooting for Experts

Dark Light Zone Banding (DLZB)

Lines are Missing or Thinner than Expected

Solid Bands or Lines Printed Over the Image

Print Smudges when Touched

Problems with Graininess

Paper is not Flat

Defect Near the Top of the Print

Lines are Printed Double or in Wrong Colors

Problems with Stepped Lines

Lines are Blurred (Ink Bleeds from Lines)

Problems with Color Accuracy

Problems with PANTONE Color Accuracy

Color Matching Between Different HP Designjet Printers

Problems with Image Clipping

Image is Completely Blank

Output Only Contains a Partial Print

Image is in One Portion of the Printing Area

Image is Unexpectedly Rotated (PostScript Driver)

One Image Overlaps Another on the Same Sheet

Print is a Mirror Image of the Original

Print is Distorted or Unintelligible

No Output from the Printer

Pinchwheel Marks when using Glossy Media

VLS in 1 Pass Printmodes

Bubbles (Only occurs in Cyan, Magenta and Yellow)

VLS in First 3 Meters after a Media Load

Black Printhead: Decap Problem

Paper Expansion - Paper Advance (PEPA)

Bidirectional Offset in Light Color Density Areas

Ink Contamination on Yellow Printhead

Satellites in Black Lines

Parts and Diagrams

Removal and Installation

Electrostatic Discharge (ESD) Precautions

Safety Precautions

Installation of New Window

Right Connector Cover

Left Connector Cover

Service Station

Removal of the Service Station Scraper

Ink Supply Tubes and Trailing Cable

Installation of the Ink Supply Tubes and Trailing Cable

ISS to Cartridge Cables

Cutter Assembly

Ink Supply Station (ISS)

Most Left Spittoons

Middle Left Spittoons

Encoder Strip and Encoder Sensor

Carriage Flex Cables

Carriage Assembly

Scan-Axis Motor

Media-Axis Motor

Interconnect PCA

EIO to PCA Interface Card

Main PCA Formatter

Hard Disk Drive (HDD)

Power Supply Unit (PSU)

Formatter Battery

Line Sensor Assembly

Media Deflector

Installation of the Foams

Cartridge Trays

Push-Push Mechanism

Encoder Disc and Sensor

Media Lever Assembly

Media Lever Sensor

Pinchwheel Assembly

Removing individual Pinchwheels

Important Information on Installation of Pinchwheels

Installation of the Drive Roller

Right Rollfeed Module Assembly

Right Spindle Lever

Preventive Maintenance

Cleaning the Printer

General Cleaning

Moisture on the Printer

Noisy Carriage Bushing

Cleaning the Center Platen

Cleaning the Drive Roller and Overdrive

Applying Oil to the Overdrive

Lubricating the Carriage Assembly

Level of Printer Usage

Scheduled Maintenance

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