Kyocera FS-C5350DN Service & Parts Manual Set, 2009 (P/N 842K8110)

The service manual helps trace faults and identify the assembly that needs attention. The parts list matches that assembly to exploded views and ordering numbers.

The service manual covers optional paper-feeder fault codes and printer-side communication checks. Internal feeder repairs are covered in a separate feeder service manual. Color calibration and manual color registration are covered in the operation guide.

PDF Search and Wiring Detail

Search and bookmarks: The service and parts sections have searchable text, and embedded bookmarks navigate both publications. The two manufacturer directory pages lack searchable text. Zoom in to read small connector IDs, pin numbers, and signal labels in the wiring diagram.

Both publications come in one printable PDF with 214 pages, including two original covers, seven intentionally blank pages, four service appendix pages, and two manufacturer directory pages.

Print Engine Service, Fault Codes, and Parts

These are selected topics from the set. The service manual also covers expansion-memory installation and shows the mounting direction of the main cooling fans.

• Paper feed and duplex: Step-by-step removal and refitting for the paper-feed roller assembly with pickup roller, retard roller, MP paper-feed roller, and Duplex Unit B.

• Imaging and fusing: Illustrated procedures cover the CMYK developing units, drums and main chargers, intermediate transfer unit, transfer roller unit, fuser, laser scanners, and ozone filter.

• Service mode and firmware: Procedures cover service and network status pages, CMYK test prints, developer initial-value entry, developer and drum refresh, and firmware loading from USB or CompactFlash.

• Fault isolation: Diagnostic tables cover lift and feed systems, motors and clutches, laser output, charging and bias, fuser control, toner supply, drum and developer recognition, and controller faults.

• Electrical service: A two-page wiring diagram supports fault tracing. Illustrated procedures cover removal and refitting of the power-source, main, engine, and high-voltage PWBs.

• Parts identification: Exploded views cover 14 assembly groups. The parts tables give factory descriptions, part numbers, alternate numbers, and quantities by voltage version, with a separate maintenance-kit table.

The service manual is written for technicians who maintain and repair laser printers.

Paper Path and Electrical Layout

The Machine Cross Section follows the sheet from the cassette or MP tray through registration, transfer, heat-roller fusing, and paper exit or duplex return. The Drum Section, Expose Section, Developing Section, and Transfer/Separation Section block diagrams show how the four color stations and intermediate transfer belt work with the engine electronics.

The electrical layout maps 27 PWBs along with switches, sensors, motors, clutches, solenoids, eraser lamps, and fuser components. Silk-screen views and connector tables identify pins, signal direction, and voltages for the power-source, engine, drum-relay, and paper-exit boards. A cross-reference matches board names to parts-list descriptions for ordering replacements.

Specifications cover supported media, simplex and duplex printing, interfaces, dimensions, power requirements, and noise.

Service-Mode Checks and Repair Notes

The CMYK halftone page helps narrow an image defect to one color’s drum or developing station. Service status pages show firmware, installed options, usage and life counters, media and fuser settings, calibration data, RFID information, and drum IDs and serial numbers. The event log tracks jams by sensor location, source, paper size, media type, and exit path alongside service, maintenance, and toner records.

The diagnostic tables pair codes 0100 through 9530 and F-series entries through F186 with causes and corrective checks, including EEPROM and controller communication faults. Image-quality charts cover blank or solid pages, light or dirty backgrounds, streaks, spots, offset, missing image areas, loose fusing, and color misregistration. Separate checks address electrical and mechanical symptoms such as fan faults and abnormal noise.

Service mode includes LSU dust-shield glass and main-charger cleaning and a reset for maintenance-kit life counters. The reset section cross-references replacement procedures for the drums, developers, fuser, intermediate transfer unit, feed and retard rollers, and ozone filter. The parts list identifies MK-580 kits, DK-580 drums, DV-560 developers, FK-580 fusers, and TR-580 transfer units, with separate kit entries for North American and European power-source versions.

The engine PWB procedure calls for retaining the original EEPROM U4 and warns that over-inserting the board can deform its plate and disable ID-sensor cleaning. Replacing the engine board and a drum at the same time can trigger backup data error 9530.

Safety coverage calls for AC isolation before disassembly and flags high-voltage charger circuits, static-sensitive PWBs, laser optics, and the hot fuser.

A Sample from the Repetitive Defects Gauge

The gauge associates a repeating print mark spaced 98 mm apart with the drum and one spaced 59 mm apart with the transfer roller.

For fuser-related marks, the gauge lists 79 mm for the press roller and 82 mm for the heat roller, helping distinguish the two when a defect repeats.