2007 Xerox WorkCentre 5632/5638/5645/5655/5665/5675/5687 Service Manual (P/N 708P88787)

The August 2007 Xerox WorkCentre 5687 Family Service Manual, publication 708P88787, covers the 5632, 5638, 5645, 5655, 5665, 5675, and 5687. Xerox uses WC5687F as the family identifier, with coverage for copier and multifunction configurations and their listed options.

Supplied as a 2,320-page PDF with searchable English service text and image-based circuit and wiring diagrams.

• Fault diagnosis: Repair Analysis Procedures (RAPs) for power supplies, communication failures, paper jams, scanner faults, network controller errors, and embedded fax.

• Imaging and fusing: Xerographic and fuser fault isolation, toner-concentration sensor calibration, internal test patterns, and image-quality acceptance specifications.

• Paper handling repair: Duplex automatic document handler (DADH) feed assemblies, tray elevators, registration transport, duplex drives, and inverter components, with removal, replacement, and adjustment procedures.

• Finishing systems: Separate repair coverage for LCSS, HCSS, and HVF equipment, including booklet makers, the PPI inserter, and Tri-Folder.

• Electrical reference: Circuit diagrams, 50 wiring diagrams, PWB and connector locations, harness repair procedures, and voltage, resistance, and signal tolerances.

• Service diagnostics: dC330 Component Control, NVM read/write and initialization, software recovery, network cloning, and video-path tests.

Xerox specifies this manual for certified, product-trained service personnel.

Machine Variants and Replacement Parts

Main drive procedures distinguish 32–38, 45–55, and 65–87 ppm assemblies and warn that these groups are not interchangeable. Scanner and paper-path sections also separate speed-dependent layouts. These distinctions help match replacement parts and repair procedures to the machine being serviced.

The product-identification tables distinguish Digital Copier, Basic MultiFunction, PostScript-equipped, and Advanced MultiFunction configurations. Illustrated parts lists cross-reference repairs and adjustments, while Mod/Tag information identifies hardware changes, including finisher updates and RoHS versions.

Fault Isolation and Image Quality

Service call procedures cover initial checks, status indicator analysis, subsystem maintenance, and final operational checks. The Image Quality Entry RAP uses internal print patterns to distinguish print-engine defects from scanner, network controller, or received-fax problems.

Image-quality specifications address solid-area density, background, fusing, resolution, skew, registration, and magnification. For the 65–87 ppm developer assembly, coverage extends to magnetic-seal brush adjustment and identifies magnetic seal repair tool 600T91952.

Calibration: dC502 addresses DADH width-guide calibration; dC604 covers simplex, duplex, scanner, and document-handler registration. The dC905 toner-concentration calibration is tied to installation of a new developer module.

Finisher and Booklet Maker Repair

Separate procedures cover 1K and 2K LCSS, HCSS/HCSS BM, and HVF/HVF BM configurations. Booklet-maker adjustments include stapler-anvil alignment, crease-blade positioning, booklet tamping, and staple and crease positioning.

The PPI inserter and Tri-Folder have their own drive, sensor, control-board, and paper-path procedures. HVF docking instructions flag the risk of breaking the interlock actuator through misalignment.

Electrical Specifications and Reference Data

Electrical reference data documents DC voltage levels, grounding checks, resistance tolerances, and logic-signal limits. PWB pin-location views and plug/jack tables support fault tracing between components and their control boards.

Examples include Wiring Diagram 1 for input power and the LVPS, Wiring Diagram 10 for the DADH, and Wiring Diagram 15 for the 65–87 ppm scanner. Wiring Diagram 35 covers the network controller; Wiring Diagram 48 covers the Tri-Folder.

Harness repair instructions distinguish serviceable connectors from ribbon harnesses and other assemblies designated for replacement. The fuser/xerographic communication RAP warns that continuity testing with those modules installed can damage their CRUMs.

General reference sections also cover electrical supply requirements, operating and storage conditions, and paper/media specifications.

Follow the manual's electrical, laser, and hot-fuser safety precautions during service. Health and safety incident-reporting protocols are included.

Software, Network, and Fax Diagnostics

Portable Work Station procedures document NVM save/restore, software loading, and AltBoot recovery. Network cloning, echo and connectivity tests, and video-path diagnostics support controller troubleshooting. Embedded fax coverage includes send/receive fault isolation and country-specific NVM tables.

File Format and Readability

The total includes 2 cover/publication pages, 178 introductory pages containing safety information and translated warnings, and 2,140 pages across the eight technical sections. All section contents and blank pages are included in those totals.

Text search: Procedures and parts tables contain searchable PDF text. Labels within the image-based circuit and wiring diagrams are not searchable.

Navigation: Section contents provide printed page references. The file has no embedded PDF bookmarks or clickable internal links.

Diagram readability: Dense schematics need enlargement for comfortable reading of small pin numbers, connector identifiers, and wire-color codes.