Xerox Document Centre 535/545/555 Service Manual, 2002 (P/N 708P87010)

Xerox Service Manual P/N 708P87010 covers the Document Centre 535, 545, and 555. Issued in December 2002, it supersedes 708P86823 and covers the desktop machine and the option configurations identified in the service documentation.

PDF Bookmarks and Diagram Detail

Search, navigation, and wiring labels: PDF text search is not available. Embedded bookmarks provide section-level navigation, including separate entries for repairs and adjustments. Small pin numbers, connector labels, and wire-color codes on the sampled circuit and wiring diagrams are readable when enlarged.

One printable English PDF contains 733 pages, including seven manufacturer front-matter pages: a transmittal sheet, binder inserts, title/publication pages, and revision-control lists. Section dividers and their reverse pages are also included in the total.

Copier Fault Diagnosis, Transport Repair, and Calibration

The following selected coverage highlights major service areas rather than reproducing the full contents. Other topics include paper/media compatibility tables and electrical power-save requirements.

• Control and drive repair: Fault-isolation RAPs and removal/replacement procedures for the power/control assembly, user interface, IOT and image-processing PWBs, image disk, and main-drive module.

• Paper feed and transport: Step-by-step procedures for trays and HCF, registration and duplex transports, inverter components, feed mechanisms, drive belts, motors, and sensors.

• DADH, scanner, and ROS: Feed and CVT assembly service, scanner and ROS replacement, optics cleaning, belt and height adjustments, width-guide calibration, skew correction, and registration setup.

• Xerographics and maintenance: Developer and toner-system repair, corotron cleaning, component-life tables, and inspection/cleaning schedules for the fuser, xerographic module, ozone filter, and paper paths.

• LCSS and OCT: Stacking, stapling, punching, and output-fault diagnosis; LCSS belt, sensor, PWB, and mechanism replacement; stacker-level and machine-alignment adjustments.

• Electrical and software diagnostics: Wiring diagrams, connector/PWB views, voltage and logic tolerances, NVM and component-control routines, internal print tests, video-path checks, and network tests.

• Configurations and parts: Documented feeder, output, network, memory, scan, fax, accounting, foreign-interface, USB-print, and security options, with illustrated parts lists, service kits, and MOD/Tag information.

Xerox specifies this service documentation for certified, product-trained service personnel; the procedures call for diagnostic-mode access, service-meter measurements, a Portable Work Station, and ESD precautions.

Service Calls and Image-Quality Diagnosis

The service-call sequence connects initial checks, first-call setup, fault analysis, subsystem maintenance, and final operational checks. RAPs connect symptoms and displayed codes with circuit diagrams, connector pins, diagnostic controls, parts references, and the relevant repair or adjustment procedure, giving technicians a route from a reported fault to the appropriate checks.

Code-free symptoms: Separate entries address a dead machine, boot failures, audible noise, and multifeeding. Status codes and messages are indexed both numerically and alphabetically. The diagnostic coverage also includes standby power, main drives, IOT/image-processing communications, paper supply, fusing, scanner, network-controller, image-disk, and system faults.

Image-quality isolation: Dedicated RAPs distinguish print-engine defects from DADH, document-glass, scanner, ROS, and network-originated problems. They address skew, xerographic defects, fusing, print damage, and narrow bands. Internal test patterns provide comparison samples for separating the source of a defect; image-quality specifications cover solid-area density, background, resolution, registration, and copy/print defects.

Fuser procedures cover fault isolation, control checks, and module replacement. The manual identifies the fuser as having no internally serviceable parts, so this is not an internal fuser-rebuild guide.

Maintenance, Build Changes, and Repair Cautions

Subsystem maintenance includes developer and toner contamination checks, the waste-toner system, DADH feed components, CVT/document glass, and scanner optics. MOD/Tag records identify build changes, including the developer-cam update, pre-Tag 015 HVPS/LVPS insulation repair, modified fuser and xerographic latches, and LCSS timing or entry-guide changes.

DADH teardown cautions identify the weakened frame that can be damaged if lowered while partly disassembled. Main-drive and power/control procedures warn about trapped harnesses and damaged IOT connector pins, as well as NVM damage from incorrect chip orientation or bent pins.

Isolate power whenever a task does not require live measurements, and observe the manual's precautions for the HVPS/LVPS, ROS laser, hot fuser surfaces, moving mechanisms, and stored mechanical energy.

Wiring, Network Recovery, and Parts Identification

The 19 wiring diagrams complement the circuit diagrams within the RAPs. Examples cover input power/LVPS distribution, IOT and main-drive connections, DADH controls, tray/HCF controls, scanner-driver/CCD circuits, and LCSS/OCT circuits. Connection tables and PWB views identify the relevant connectors and diagram references.

Software and network work: Coverage includes PWS logging, counter retrieval, network configuration, image-disk formatting, NVM read/write and initialization, software compatibility checks, upgrades/downgrades, and Network Controller AltBoot re-imaging. Network-controller repair centers on fault isolation, connectivity, PWB access, and software recovery rather than component-level board repair.

Certain configuration values are password protected, and firmware upgrades are assigned to a customer service engineer. AltBoot does not automatically preserve customer NVM settings and erases enabled optional services; the accompanying coverage addresses NVM backup/restore and service reactivation requirements.

The diagnostic routines also include DADH width-guide calibration, image-to-paper registration, and toner-concentration sensor calibration. Server Fax and Internet Fax are documented network options; the software-loading section identifies this product as having no built-in fax capability.

Parts and tools: Illustrated lists cover regional machine kits, maintenance and terminal-repair kits, connector kits, common hardware, consumables, and a part-number index. Tool references include USB cable 600T02231, Ethernet crossover cable 600T02252, finisher bypass harness 600T02261, and serial cable 600T02058.

Examples of Defect Spacing and DC Test Limits

For repeated defects along the process direction on A3/11 × 17 prints, the xerographic RAP distinguishes a 264 mm repeat interval associated with the xerographic module from a 110 mm interval referred to fuser diagnosis.

The electrical reference table gives +4.75 to +5.25 V for the nominal +5 V supply, measured between an available test point and machine ground. These are supply-voltage tolerances, separate from the logic-signal thresholds used elsewhere in the diagnostic information.