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HP Designjet T7200 Service Manual

HP Designjet T7200
468 pages
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Designjet T7200 Production Printer
Service Manual

Table of Contents

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HP Designjet T7200 Specifications

General IconGeneral
Print TechnologyThermal Inkjet
ConnectivityGigabit Ethernet (1000Base-T), EIO Jetdirect accessory slot
Print SpeedUp to 120 A1 prints per hour
Maximum Resolution2400 x 1200 optimized dpi
Media TypesBond and coated paper, technical paper, film, photographic paper, self-adhesive
Ink TypesDye-based (C, M, Y, G); pigment-based (MK)
Number of Ink Cartridges6 (cyan, magenta, yellow, gray, matte black, photo black)
Hard Disk160 GB
Operating Systems SupportedWindows, Mac OS

Summary

Using this manual

Purpose

Describes the manual's content and scope for testing, calibrating, and servicing the printer.

Readership

Defines the target audience for the service manual as HP-certified service personnel.

Part Numbers

Indicates where to find part numbers for printer options, accessories, and service parts.

Printing tips and tricks

Paper loading

Guidance on loading paper rolls, recommending 3-inch cores for fewer issues.

Paper-advance calibration

Explains automatic calibration triggers and methods to reduce banding and line issues.

Printhead alignment

Recommendations for optimal alignment using specific paper types for best results.

Use of multiple rolls

Details on setting up the printer for multi-roll printing using various policies.

Troubleshooting

The printer does not power on

Step-by-step guide to resolve issues where the printer does not power on.

The printer hangs during printing and displays ‘processing’

Addresses printer hangs during printing, often related to error 79:04.

The printer continuously rejects printheads

Troubleshooting steps for when the printer repeatedly rejects printheads.

Cover sensors are not working

Procedure to resolve issues with non-functional cover sensors.

The Line Sensor has problems detecting paper

Steps to resolve issues with the Line Sensor failing to detect paper.

Troubleshooting paper jams and printhead crashes

Guidance for clearing paper jams and addressing printhead crashes.

Troubleshooting shutdowns

Actions to take when the printer experiences unexpected shutdowns.

How to troubleshoot the 79:04 system error

Detailed guide for diagnosing and resolving the 79:04 system error.

System error codes

What to do if the front panel is blank

Troubleshooting steps for a blank front panel display.

System error codes

Lists system error codes, descriptions, and recommended corrective actions.

Explanation of system error codes and warnings

Explains the format and meaning of system error codes and warnings.

Continuable and non-continuable error codes

Differentiates between error codes that allow continued operation and those that do not.

Ink supplies

What are ink supplies?

Identifies the three main components classified as ink supplies.

General information about the ink supplies

Provides guidelines for handling ink supplies for optimal printer results.

General precautions when handling ink supplies

Highlights safety and careful handling procedures for ink supplies.

Priming the ink system

Details the automatic priming process for new printers and its necessity.

When should you replace the ink supplies?

Guidance on determining when ink supplies need replacement based on front panel messages.

Obtaining Ink Cartridge information

Procedure to check ink cartridge status and information via the front panel.

Obtaining Printhead information

Procedure to check printhead status and information via the front panel.

Troubleshooting Printhead error codes

Explains how to interpret printhead error codes using decimal to binary conversion.

Service tests and utilities

Introduction

Provides an overview of service tests and utilities for diagnosing printer failures.

Diagnostics—self test

Describes the automatic internal self-tests performed during printer startup.

Phone support

Explains how call agents can guide customers through service tests via phone.

Service tests (diagnostics)

Lists all internal service tests available for diagnosing printer components.

Entering the Service Tests menu

Provides instructions on how to access the service tests menu.

Service utilities

Lists internal service utilities for tasks like cleaning, resetting, and diagnostics.

Service calibrations

Service calibrations

Lists all internal service calibrations available for printer tuning.

Entering the Service Calibrations menu

Step-by-step guide to access the service calibrations menu.

Paper-advance calibration

Calibrates paper advance to compensate for roller irregularities, avoiding banding.

Drop Detector calibration

Calibrates the Drop Detector in relation to the Carriage Assembly.

Line Sensor calibration

Calibrates the Line Sensor intensity to prevent edge-detection failures.

Calibrate Rewinder

Calibrates the printer's Rewinder Motor parameters.

Primer calibration

Computes the optimum position of the Primer Assembly relative to the Carriage.

Reset vacuum calibration

Resets nominal vacuum calibration values when pressure is incorrect.

Platen blue line calibration

Calibrates the blue line marked on the Print Platen.

OMAS Calibration

Calibrates the Optical Media Advance Sensor (OMAS) module.

Print quality

Initial print-quality troubleshooting actions

Basic troubleshooting steps for resolving most print-quality issues.

Troubleshooting tools

Guide to accessing and using troubleshooting tools in the Embedded Web Server.

Optimize print quality

Automates calibration and recovery procedures for optimum print quality.

Optimization suggested actions

Series of recommended actions based on internal checks to improve print quality.

Most-common issues resolution

Helps resolve common print-quality issues like banding, graininess, and color inaccuracy.

Status codes

Explains how to view and interpret status codes for troubleshooting print quality.

Nozzle health

Details the status codes for nozzle health and printhead warranty status.

Media advance calibration

Explains status codes related to media advance and OMAS sensor status.

Printhead alignment

Interprets status codes for printhead alignment, including scan and correction data.

Closed-loop color calibration

Explains status codes for color calibration and how to address issues.

How to use the Image Quality Service Diagnostic Print

Guide on using diagnostic prints to diagnose image quality defects.

Parts and diagrams

Printer

Diagrams and part numbers for the main printer components.

Stacker

Diagrams and part numbers for the stacker accessory.

Printer part removal and installation

Service part order

Lists all service parts with their corresponding page numbers for removal instructions.

Disassembly order

Provides a step-by-step guide for removing various printer components.

Stacker part removal and installation

Right Cover

Step-by-step instructions for removing and installing the stacker's right cover.

Left Cover

Step-by-step instructions for removing and installing the stacker's left cover.

Top Cover

Procedure for removing and installing the stacker's top cover.

Lower Front Cover

Instructions for removing and installing the stacker's lower front cover.

Pinchwheels

Steps for removing and installing the stacker's pinchwheels.

Drive Motor

Procedure for removing and installing the stacker's drive motor.

Front Cover Sensor

Instructions for removing and installing the front cover sensor.

Safety Temperature Sensor

Procedure for removing and installing the safety temperature sensor.

Temperature Sensor PCA

Steps for removing and installing the temperature sensor PCA.

Media Sensor

Procedure for removing and installing the media sensor.

Extension Tray

Instructions for removing and installing the stacker's extension tray.

Receiving Tray

Steps for removing and installing the stacker's receiving tray.

Printer Interlocks

Procedure for removing and installing the printer interlocks.

Paper Infeed Platen

Instructions for removing and installing the paper infeed platen.

Electronics PCA

Steps for removing and installing the stacker's electronics PCA.

Power Supply Unit

Procedure for removing and installing the power supply unit.

Heating Lamp

Instructions for removing and installing the heating lamp.

Heat Roller

Procedure for removing and installing the heat roller.

Transport Belt

Steps for removing and installing the transport belt.

Preventive maintenance

Moisture on the printer

Guidance on printer use in humid environments and recovery from moisture.

Noisy Carriage Bushing

Steps to prevent noisy carriage movement by removing particles.

Belt swelling

Instructions for storing new belts to prevent swelling.

General cleaning

Procedures for maintaining the printer in good operating condition through cleaning.

Clean the Drive Roller and Overdrive

Procedure for cleaning the drive roller and overdrive, especially after ink spills.

Clean the Platen

Recommendations for cleaning the center platen to prevent marks on paper.

Clean the Encoder Strip

Vital maintenance to clear system errors and paper loading issues.

Clean the Paper-advance Sensor window

Instructions for gently cleaning the paper advance sensor window.

Apply oil to the Overdrive

Procedure for oiling the overdrive to stop rollers from squeaking.

Lubricate the Carriage Assembly

Instructions for lubricating the carriage assembly for smooth movement.

Scheduled maintenance

Explains the importance of scheduled maintenance to prevent failures.

Preventive Maintenance Kits

Details the components included in Preventive Maintenance Kits #1, #2, and #3.

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