2007–2008 HP Designjet Z6100 42-inch / 60-inch Printer OEM Service Manual (Second Edition)

This HP OEM service manual covers the 2007–2008 HP Designjet Z6100 42-inch (Q6651A) and 60-inch (Q6652A) printers. The Second Edition, May 2008, documents testing, calibration, maintenance, and component repair.

• Fault diagnosis: System error codes, power-up sequence analysis, service-information pages, and Electronics Module Test procedures for isolating electrical and communication faults.

• Ink system: Printhead and maintenance-cartridge status interpretation, Air Pump System testing, printhead priming, and Bag Broken Recovery procedures.

• Motion and media handling: Scan Axis and Paper Drive tests, cover and media-sensor checks, skew and carriage-crash troubleshooting, and Take-Up Reel fault analysis.

• Service calibrations: Scan-axis, paper-advance, drop-detector, line-sensor, vacuum, OMAS, primer, and Platen Blue Line calibration procedures.

• Component replacement: Illustrated carriage, belt, ink-tube, trailing-cable, electronics, and OMAS removal and installation, with size-specific parts identification.

• Preventive maintenance: Encoder-strip and platen cleaning, paper-advance sensor care, carriage lubrication, maintenance-absorber replacement, and preventive-maintenance kit contents.

The manual specifies HP Certified service personnel for its service procedures and assumes training on the Designjet Z6100 series.

Troubleshooting and System Analysis

Power-up tables interpret buzzer signals, initialization stages, and power-switch LEDs. Interconnect PCA and PrintMech PCA LED-location illustrations accompany status tables for tracing power-delivery faults.

The Electronics Module Test covers formatter and power-electronics checks, including CPU-fan and memory checks. That test excludes the EIO card and hard drive.

Diagnostic limits: The standalone Carriage Assembly, Ink Delivery System, SVS, Vacuum Fans, OMAS Module, and Aerosol tests are listed as unimplemented in this edition. OMAS calibration and media-advance troubleshooting are documented separately.

Firmware and stored data: Dedicated troubleshooting distinguishes job-, data-, network-, firmware-, and hardware-related 79:04 errors. The manual also covers hard-drive space problems, disk-wipe utilities, and emergency firmware upgrades using .plt files when normal startup or Embedded Web Server access is unavailable. Disk-wipe procedures identify the loss of stored jobs and profiles.

Review the documented safety protocols and disconnect power before maintenance or electrical-module access; the manual also covers electrostatic-discharge precautions.

Print Quality and Service Calibration

The Image Quality Service Diagnostic Print separates nozzle defects, alignment errors, and paper-advance problems. The Visual Alignment Diagnostic Print and Visual Paper Advance Plot provide patterns and interpretation criteria that help distinguish printhead faults from media-drive or OMAS problems before parts are selected.

Replacement-related calibration requirements are identified even when an assembly was removed only to reach another component. Paper Advance Calibration and OMAS Calibration specify calibration kit Q1273-60296 and the required media.

Component Repair and Parts Identification

Size-specific procedures distinguish covers and OMAS access on the two printer widths. Illustrated parts tables pair service part numbers with assembly drawings, including the Carriage Assembly and Take-Up Reel Assembly exploded views.

The HDD and ink-tube/trailing-cable sections explain their replacement dependency and associated configuration recovery. Cover-installation cautions identify the risk of damaging the maintenance-cartridge door sensor, while carriage-access procedures warn about primer damage during manual carriage movement.

Cleaning, Lubrication, and Wear Items

Cleaning guidance distinguishes environment-dependent intervals from usage-triggered maintenance messages. Carriage lubrication, encoder-strip cleaning, and maintenance-kit replacement are tied to their respective conditions or counters.

The maintenance-absorber section explains how a saturated or excessively dry absorber can damage printheads and other printer parts.

A Preview of Paper-Drive Diagnostic Limits

These analog-encoder acceptance ranges are a small selection of the diagnostic data in the manual.

Within the Paper Drive Test, acceptable calibration results are Gain 0–5, DGain 0–15, and Offset −80 to +80. The accompanying results screen shows how the test reports these parameters.

Searchable PDF with Chapter Bookmarks

Search and diagram detail: Searchable PDF text and embedded bookmarks provide access to the service chapters and individual procedures. Small PCA callouts and diagnostic-flowchart labels are best read with magnification.

Supplied as one printable English PDF with 472 pages total: 462 numbered manual pages plus 10 preliminary pages. Cover/title pages, publication information, the manual introduction, six contents pages, and seven otherwise blank pages with running headers or footers are already included in that total.