Sharp AR-C260/C260M Service Manual (P/N 00ZARC260MA2E)

• Sharp AR-C260 and AR-C260M service manual in a 255-page PDF, identified on the cover by Sharp publication code 00ZARC260MA2E.
• Covers fusing-unit repair, including heat rollers, heater lamps, thermistors, separation pawls, pressure adjustment, and paper-guide positioning.
• Illustrated transfer and process procedures detail belt replacement, cleaning-blade service, OPC drum removal, main-charger work, and LED-unit removal.
• Factory calibration procedures address image registration and color balance, LED focus and skew, CCD gamma, and image-density sensors.
• Service simulations and fault-code tables support sensor monitoring, motor and clutch checks, paper-jam diagnosis, and memory testing.
• Electrical documentation provides power-line diagrams and Actual Wiring Charts, with connector assignments and signal descriptions.

The electrical measurements and calibration routines make this manual suited to copier service technicians familiar with internal repair and factory service modes.

Tandem Engine and Option Coverage

The A3 tandem engine uses four color stations, an LED printhead system, and oil-less fusing. Operating descriptions explain how the transfer belt changes position for color and black-and-white printing, while the optical section follows the scanner’s RGB CCD, xenon lamp, and image-signal processing.

The AR-C260 takes the optional AR-P16 printer controller; the AR-C260M has its controller installed. Configuration tables identify prerequisites for the AR-NS2 network-scanner kit. They also show the dependency between the AR-D19 duplex paper-feed module and AR-RB1 reverse bypass module, and the combination required for the AR-F13 saddle finisher.

Accessory coverage includes tests for the AR-RF3 reversing automatic document feeder and finisher stapling, folding, and punch-position adjustments. AR-S11 bin-sensor and guide-bar adjustments are referenced to the separate sorter service manual.

Mechanical Repair and Maintenance

Mechanical procedures extend to cassette and bypass-feed pickup and separation rollers, torque limiters, vertical transport units, registration rollers, and face-down output assemblies. Scanner repair covers the CCD unit, lamp assembly, scanner motor, and home-position sensor. The operation-panel section addresses the operation-key PWB and inverter/LVDS board.

The transfer-belt procedure warns that opening the frame incorrectly can deform an electrode. The CCD adjustment section identifies fasteners whose disturbance can upset factory alignment beyond field adjustment, requiring replacement of the entire scanner unit.

Consumable tables distinguish regional cartridge part numbers and fusing assemblies by heater voltage. Maintenance lists separate inspection, cleaning, lubrication, and replacement work by component, with related service-counter procedures.

Factory Adjustments and Diagnostics

The 18 main adjustment groups also cover print-area and copy-magnification settings, document-size detection, bypass-tray width sensing, touch-panel coordinates, and power-supply adjustment. The color-balance workflow distinguishes installation, periodic maintenance, and repairs with or without consumable replacement.

Calibration references identify the CPLTM6305FC01 image-density adjustment jig and UKOG-0280FCZZ SIT chart. The manual explains the accuracy limitations of simplified sensor calibration without the jig. High-voltage extension harnesses DHAi-3471FCZZ and DHAi-3472FCZZ are specified for charger-grid and developing-bias checks.

Troubleshooting entries pair fault conditions with causes and checks, including E7 LED-control errors, F2 cartridge and process-control faults, and H2 through H5 fusing-related faults. Misfeed histories and counter data support recurring-jam investigations. Simulation routines also expose thermistor readings, process temperature and humidity, and image-correction results.

Wiring and Firmware Service

AC power-line diagrams distinguish 120V and 200V-series circuits. The DC power-line diagram and Actual Wiring Charts for the transfer belt, LED-head, and image scanner sections provide harness and connector detail for electrical fault tracing. PWB block diagrams explain the roles of the PCU, ICU, and MFP boards. Motor and sensor reference tables identify drive types, signals, and functions.

The ROM Version Up chapter covers PC-to-Flash-ROM transfers, copying between the ICU PWB’s ROM sockets, and desk-controller updates. Its PC workflow specifies Mainte.exe, a serial level converter, and Windows 95/98/2000. ROM-version compatibility checks and update-status tables accompany the procedures.

The machine contains high-voltage circuits and hot fusing components. Always disconnect power and follow standard workshop safety protocols before inspecting internal modules.