2007 HP Designjet T1100 MFP, 4500mfp, 4500 Scanner & 820 MFP Scanner Service & Repair Manual

The fourth-edition Hewlett-Packard service manual (May 2007) covers the HP Designjet T1100 MFP, 4500 Scanner, 820 MFP, and 4500mfp scanner systems. It addresses scanner repair and MFP integration; troubleshooting the printer itself requires the corresponding printer service manual.

The English PDF contains 258 pages, with searchable document text and illustrated diagnostic, adjustment, and component-replacement procedures.

• Scanner diagnosis: SCANtest 6 tests for media sensors, the stepper motor, lamp electronics, cameras, and driver-board communication, plus SCANdump diagnostic records.

• Error-code analysis: Operator-panel LED patterns, scanner and software error codes, JetImage RIP faults, and touch-screen messages with corrective actions.

• Mechanical repair: Removal and installation coverage for guide plates, entry and exit rollers, drive belts, stitching wire, and optical assemblies.

• Panel PC service: Power and boot fault diagnosis, LCD/inverter voltage checks, and replacement procedures for the display, storage, memory, and circuit boards.

• Scanner calibration: Camera focus, scan width, vertical positioning, stitching, Y-axis scaling, ATAC sensor adjustment, and automatic thickness-control calibration.

• Preventive maintenance: Cleaning procedures and replacement coverage for the lamp cartridge, air filters, glass plate, and white-background platen.

The service procedures are intended for HP-certified personnel only; separate sections identify customer maintenance and user-replaceable parts.

Troubleshooting and Error Code Analysis

The troubleshooting tables document more than 35 scenarios, including vertical lines, color mismatch, skewing, media-loading failures, network access problems, and startup faults. Error-code coverage includes 51-series scanner API faults and 100-series hardware faults, including 100-600xx communication-interface errors.

The Noise Test and camera light profiles help distinguish contamination or glass defects from camera-related image problems before replacement parts are selected. SCANdump records light profiles, error codes, and statistics for further diagnosis.

Software coverage includes JetImage and WIDEsystem faults, System Recovery, and scanner firmware updates. The firmware section distinguishes update methods according to the installed software version.

Camera Adjustment and ATAC Calibration

The scanner uses three CCD cameras. Software-oscilloscope views explain focus, scan-width, and vertical-position adjustments, including how changing focus affects scan width. Scanner Maintenance then addresses camera alignment, stitching, and color calibration.

A Camera Adjustment Wizard section is included, but the manual expressly specifies Test 9 for manual camera adjustment.

Required service aids include Service Patterns Q1277-60030, Optical Adjustment Pattern Q1277-60031, and ATAC Sensor Adjustment Tools Q1277-60084. The ATAC procedures warn that incorrectly positioned adjustment guides can damage the white background.

Scanner and Panel PC Repair

OEM parts tables identify guide plates, rollers, and camera components, with model-specific entries for the main board, elevation motor, and other assemblies. A hardware-changeover note distinguishes the DJ4500 transition to DJT1100 scanner hardware from the DJ820 configuration, helping technicians match replacement parts to the installed hardware.

Illustrated assembly references include Drive Assemblies, Camera Components and Fan, and Electronic Boards. Repair coverage extends to the mirror chassis, camera boards, scanner power supply, interface board, and Panel PC internals.

The Panel PC block diagram and the No backlight and no display and With backlight but no display flowcharts support display-fault diagnosis. Inverter photographs identify connector test points, accompanied by electrical test specifications.

The preventive-maintenance material links lamp replacement with air-filter replacement. Cleaning cautions explain that solvents can dissolve the black masks on the glass plate.

Commercial printing equipment contains high-voltage components and moving parts. Follow the manual's power-isolation, discharge-time, and ESD precautions during service.

File Format and Readability

Included pages: Seven opening pages, 248 pages across six service chapters, and three closing pages containing edition information, model coverage, and the back cover are already included in the 258-page total.

Text search and navigation: The main text and parts tables are searchable. The file has no PDF bookmarks; text within raster images, including the Panel PC block diagram, is not searchable.

Illustration readability: Small labels in the Panel PC block diagram are readable when enlarged. Component photographs retain the detail limits of their original image resolution.