2006 HP Designjet 9000s Series Printer Service Manual (First Edition)

This Hewlett-Packard Service Manual covers the 2006 HP Designjet 9000s Series printer (Model Q6665A), First Edition, March 2006. It provides the service reference for testing, calibration and repair; routine operation is addressed in the separate User and Quick Reference Guides.

• System diagnostics: Boot-up self-test codes, runtime system errors, heater faults and component tests for the Main PCA, Carriage PCA and NVRAM.

• Printhead adjustment: Adjustment-jig setup, printhead positioning, drive-voltage entry, alignment patterns and bidirectional correction.

• Mechanical calibration: Carriage height, scan-axis and paper-axis belt tension, wiping and capping alignment, and line-sensor margin calibration.

• Component replacement: Illustrated procedures for electronics, power supply, motors, sensors, printheads, ink supply, capping and wiping assemblies.

• Print quality: IQ Print interpretation and troubleshooting for banding, blurred output, bleeding, repelling, mottling and incomplete prints.

• Preventive maintenance: Wiper and cap cleaning, waste-ink handling, printhead recovery, ink-system storage and procedures for returning the printer to service.

The service procedures are intended for HP-certified service personnel, with dedicated jigs and measuring tools required for printhead adjustment.

System Errors and Maintenance Mode

Boot-up error tables cover internal RAM, SRAM, Flash ROM, NVRAM, FPGA/ASIC and power-supply faults. Runtime and heater error sections connect reported failures with corrective actions and the affected assemblies.

Maintenance Mode menus document live sensor checks, motor and fan tests, electronic diagnostics, and System Print, Error Log Print and History Print functions. These component tests help isolate a failed assembly before a replacement is selected.

Setup functions include calibration and NVRAM backup and restoration, version checks and heater firmware updates. Work on the Main PCA or power supply requires the manual's electrical isolation and ESD precautions.

Printhead Setup and Mechanical Adjustments

Printhead replacement is tied to mechanical adjustment using the adjustment jigs, reference plate, positioning pins and measuring loupe. Row, head-to-head and bidirectional patterns support alignment checks.

The calibration sections identify adjustments required after assembly removal, including work performed only to gain access to another component. Wiping and capping position calibration and line-sensor top- and side-margin calibration are covered separately.

The wiping-position section warns that carriage movement with a raised wiper blade can damage the printheads.

Parts Identification and Ink-System Repair

Illustrated removal and installation procedures extend beyond printhead hardware to the trailing cable, encoder strip, ink pumps, subtank sensors and pinchwheel assembly.

Parts tables pair HP service-part numbers with exploded views, including Electronics Module, Carriage Assembly and Scan-Axis Assemblies. Capping Assemblies and Ink Supply and Subtank Assemblies illustrate the ink-handling hardware.

Fluid management sections distinguish the HP 790 Ink System Storage Kit (CB297A) from the Ink System Cleaning Kit (CB296A). They document purging, storage, cleaning and ink charging, alongside replacement-counter resets for serviced components.

The cleaning instructions distinguish wiper liquid from cap liquid and explain how using the wrong liquid can damage the printheads.

IQ Print and Print-Quality Troubleshooting

IQ Print examples distinguish banding in selected colors from banding across all colors, helping separate nozzle problems from media-advance adjustment problems. The fault descriptions also relate blurred output to bidirectional alignment and address heater settings, media condition and ink contamination.

A Preview of Axis-Belt Tension Specifications

These belt-tension figures are a small sample of the mechanical adjustment data in the manual. The scan-axis belt adjustment specifies 41.0 N ±2.0 N with a push/pull gauge.

The separate paper-axis belt adjustment specifies 49.0 N ±2.0 N with the same type of gauge. Both specifications apply after removal or replacement of the relevant motor or belt.

Searchable PDF and Illustrated Service Reference

Text search and bookmarks: The service chapters contain searchable PDF text, with embedded bookmarks for all nine chapters and many individual procedures. Detailed assembly views can be enlarged or rotated to read the numbered callouts.

One printable, English-language PDF contains 372 pages: 8 pages of front matter, 362 pages across the nine service chapters, and 2 closing edition/summary pages. Both cover/title pages are included in that total.