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HP Designjet L25500 Printer series

HP Designjet L25500 Printer series
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HP Designjet L25500 Printer series
Service manual
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HP Designjet L25500 Printer series Specifications

General IconGeneral
Print TechnologyThermal Inkjet
Print Resolution1200 x 1200 dpi
Ink TypesHP Latex Inks
Memory1 GB
ConnectivityUSB 2.0, Ethernet
Operating Systems SupportedWindows, Mac OS
Media TypesBanners, self-adhesive vinyls, films, fabrics, papers, wall coverings
Dimensions (W x D x H)2210 x 1070 x 1270 mm
Weight220 kg
Number of Inks6
Media HandlingRoll feed
Power Requirements100-240 VAC

Summary

Printer Systems

Electrical System

Details the electrical system controlling printing and heating, with focus on the E-box.

Substrate Path

Describes the substrate path workflow, from input spindle to take-up reel, and its objectives.

Ink Delivery System (IDS)

Explains the IDS, its components like ink tubes, insulation sleeve, and ISS.

Scan Axis and Carriage

Covers Scan Axis system, its components, and the carriage subsystem for printing.

Service Station and Waste management

Details the Service Station's role in printhead maintenance and waste ink management.

Heating system

Explains the heating system for ink curing, including Dryer and Curing modules.

Front Panel

Describes the Front Panel's function, components, and key functionality for printer interaction.

Troubleshooting

Troubleshooting the printer

Provides general steps for troubleshooting printer issues, including education and firmware.

Specific Printer Problems

Addresses common issues like power, printhead rejection, sensors, media jams, and shutdowns.

Diagnostic Tools and Methods

Explains how to use LEDs, buzzers, power-up sequences, and specific tests for diagnosis.

System Error Codes

Introduction

Explains system error codes as hexadecimal numbers caused by internal errors.

System Error Codes and Warnings - Explanation

Explains the format and meaning of system error codes for problem resolution.

Continuable and Non-Continuable Error Codes

Defines error codes that allow or prevent continued printer operation.

Service Tests, Utilities & Calibrations

Entering the Diagnostic Service Tests Menu

Provides instructions on how to enter the diagnostic service tests menu.

1. User Interface Menu

Details tests for the printer's user interface, including the front panel.

2. Electrical System Menu

Covers tests for electrical components like power, fans, HDD, and I/O.

3. Substrate Path

Includes tests for rewinder, drive roller, sensors, vacuum, OMAS, and motor polarity.

4. Ink system Menu

Provides tests for ISS electronics, air pressure system, and ink supply checks.

5. Scan axis

Details the Scan Axis test for diagnosing failures in the scan axis system.

6. Carriage Menu

Covers tests for Carriage PCA, color sensor, and line sensor.

7. Service Station

Includes tests for shuttle close loop, drop detector, and web wipe motor.

8. Heating and Curing

Tests performance of heaters in Dryer and Curing assemblies.

9. Cover sensor test

Checks the functionality of the printer's cover sensors.

10. Diagnostic Utilities

Utilities for managing boot mode, logs, and firmware upgrades.

Print Quality

Initial Print Quality Troubleshooting Actions

Provides initial steps for print quality issues, often resolved by customer actions.

How to Use the Image Quality Plots

Explains how to use basic image quality tests to diagnose defects.

Printhead Alignment Test Plot

Checks the accuracy of the current printhead alignment.

Printheads Health Test Plot

Checks if the printhead nozzles are printing correctly.

Substrate Advance Test Plot

Visually determines the accuracy of media advance and detects advancement issues.

Advanced Printhead Health Test Plot

Identifies specific failing printhead nozzles.

Geometry Check

Checks the printer's length accuracy and figure distortion performance.

Inks on Substrate Test

Determines the performance of Drying and Curing assemblies.

Scan Axis check

Shows defects in the Encoder Strip along the Scan Axis.

Force Drop Detection

Resets nozzle health data to assume all nozzles are correct.

Substrate advance issues

Addresses issues with substrate advancement, OMAS sensor, and paper types.

Ink Supplies

What are Ink Supplies?

Defines ink supplies as printhead, maintenance cartridge, and ink cartridge.

General Information About the Ink Supplies

Provides guidelines for handling ink supplies for optimal printer results.

General Precautions When Handling Ink Supplies

Outlines care for ink supplies, especially printheads and maintenance cartridges.

Priming the Ink System

Explains the priming process for tubes and the need to eject air bubbles.

When Should You Replace the Ink Supplies?

Guides on when to replace ink supplies based on front panel messages and ink levels.

Obtaining Ink Cartridge Information

Details how to retrieve ink cartridge color, product name, serial number, and status.

Obtaining Printhead Information

Explains how to view printhead information like make, serial number, and warranty status.

Troubleshoot Ink Cartridge and Printhead issues

Provides guidance for common ink supply problems via front panel messages.

Parts and Diagrams

Printer Support

Lists parts related to printer support and their reference figures.

Front Covers

Details parts for the front covers, including window assembly and locks.

Top & Rear Covers

Lists parts for the top and rear covers, including fans and extensions.

Electronics Module

Lists components of the electronics module like PCAs, PSU, and memory.

Right Cover

Details parts associated with the right cover, including trim and bezel.

Left Cover

Lists parts for the left cover, including trim.

Right Hand Assemblies

Details parts for right-hand assemblies like scan-axis bracket and service station.

Left Hand Assemblies

Lists parts for left-hand assemblies like cartridge trays and APS assembly.

Carriage Assembly

Details parts of the carriage assembly, including sensors and PCA.

Dryer Assembly

Lists components of the dryer assembly, including module, grill, and sensor.

Curing Assemblies

Details parts of the curing assemblies, including module, resistors, and fans.

Curing Fans Assembly

Lists components of the curing fans assembly.

Scan-Axis Assemblies

Details parts for scan-axis assemblies like motor and encoder strip.

Drive Roller and Media-Axis Motor

Lists parts for the drive roller and media-axis motor.

Media Path Assemblies

Details parts of the media path, including platens, rollers, and sensors.

Center Guide and Pinchwheel Assembly

Lists parts for the center guide and pinchwheel assembly.

Media Entry Assemblies

Details parts for media entry assemblies like rollfeed modules and spindles.

Take-Up Reel Assembly

Lists parts for the take-up reel assembly, including motor and sensors.

Miscellaneous Parts

Includes general parts like arcs, user kits, and calibration media.

Removal & Installation

Introduction

Provides a step-by-step guide to removing and installing printer components.

Safety Precautions

Reviews warnings and cautions for safe printer servicing.

Required Tools

Lists necessary tools for disassembly and repair.

Screw Types

Details various screw types with their specifications and part numbers.

Opening the Window

Provides instructions and safety precautions for opening the printer window.

Front Panel Removal

Step-by-step guide to remove the front panel assembly.

Primer Assembly Removal

Procedure for removing the primer assembly.

Rewinder Removal

Instructions for removing the rewinder motor and assembly.

Service Station Removal

Step-by-step guide to remove the service station.

Ink Supply Station (ISS) Removal

Procedure for removing the ink supply station assemblies.

Carriage Assembly Removal

Detailed steps for removing the carriage assembly.

Main PCA Formatter Removal

Instructions for removing the main PCA formatter.

Hard Disk Drive (HDD) Removal

Step-by-step guide to remove the hard disk drive.

Power Supply Unit (PSU) Removal

Detailed procedure for removing the power supply unit.

Heaters Control Assembly Removal

Instructions for removing the heaters control assembly.

Preventive Maintenance

Preventive Maintenance

Covers general maintenance tasks like moisture, noise, belt swelling, and cleaning.

Cleaning the Printer

Details general cleaning and specific cleaning for drive roller and platen rollers.

Applying Oil to the Platen rollers

Instructions for oiling overdrive rollers to stop squeaking.

Lubricating the Carriage Assembly and rods

Guidance on lubricating carriage assembly and rods for smooth movement.

Scheduled Maintenance

Addresses maintenance needed due to high print volumes or frequent failures.

Repacking instructions

Re-packaging instructions

Guidelines for reusing packaging materials and critical components.

Removing the Consumables

Step-by-step guide for removing printheads, ink cartridges, and other consumables.

Re-installing the retention parts

Instructions for securing internal parts with packing foam and tape for transport.

Securing with adhesive tape

Details where to apply adhesive tape for protection against vibration damage.

Covering the Printer

Instructions for covering the printer with dust covers and end caps.

Safety Precautions

General Safety Guidelines

General safety rules to ensure safe servicing of the printer.

Electrical shock hazard

Highlights the risk of electric shock and precautions for power cords.

Heat Hazard

Warns about high temperatures in drying/curing modules and precautions.

Fire Hazard

Precautions to avoid fire risk from high-temperature components.

Mechanical Hazard

Warns about crushing or cutting hazards from moving carriage parts.

Scan Axis Encoder Strip hazard

Warns about the sharp nature of the Scan Axis Encoder Strip.

Burn hazard (heating and curing)

Warns about hot components in heating and curing systems.

Lifting and handling

Provides guidance on safe handling of heavy materials to avoid injury.

Warning Labels

Explains various warning labels found on the printer.

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