2000 Sharp AR-151/AR-156/AR-F152 Digital Copier Service Manual (P/N 00ZARF152/A1E)

This SHARP Corporation service manual covers the AR-151, AR-156, and AR-F152 digital personal copiers. Dated December 2000 and identified by manual code 00ZARF152/A1E, it comes as a 171-page PDF: 170 manual pages plus one added DVD-collection notice.

• Optical-system service covers copy-lamp and lens-unit removal, mirror-base drive-wire installation, and horizontal and vertical image-distortion adjustment.
• Fuser repair procedures address the thermistor, heater lamp, heat roller, and pressure roller, with separator-pawl and PPD2 paper-sensor disassembly details.
• Paper-feed repair procedures cover pickup and PS roller removal, clutch and solenoid service, and disassembly of cassette, manual-bypass, and second-cassette mechanisms.
• AR-156 duplex service includes DUP motor, reverse-roller, and R-SPF disassembly, along with memory-reverse position and duplex trailing-edge void adjustments.
• FAX repair coverage includes FAX/MCU PWB and FAX-SPF removal, ROM/RAM checks, signal-send and signal-detection tests, and software-switch diagnostics.

Working on high-voltage office equipment carries inherent risks. Always disconnect the power cord before disassembly and follow the manual’s laser-safety precautions.

Model and Option Coverage

The model matrix distinguishes the duplex AR-156 from the FAX-equipped, non-duplex AR-F152. The AR-151 accepts either the AR-SP3 document feeder or the AR-FX3 kit with its FAX-SPF and FAX board; these options are mutually exclusive. The AR-156 has no FAX option.

Other configurations shown include the AR-DE9 second cassette and AR-PG1 GDI/USB printer kit. The FAX model is listed with two paper cassettes, except for the one-cassette European configuration. Electrical coverage explains USB/IEEE1284 port selection, including why connecting a USB cable disables the parallel port.

Copier and FAX Diagnostics

An engine-only self-print test operates independently of the optical system. Separate shading and polygon-motor HSYNC checks support image-fault isolation. Main-motor tests, sensor-status displays, and individual solenoid tests address drive and paper-transport faults.

Trouble-code tables distinguish E7 CCD/LSU faults, H2/H3/H4 fuser faults, U2 EEPROM/CRUM errors, and F6 communication faults between the copier and FAX boards. Separate FAX service and transmission/reception error tables cover memory, panel, handshake, and line failures.

The manual also documents the initialization required after FAX ROM replacement. Software-switch and image-memory clearing are tied to changes in DRAM allocation between ROM versions—not just a general reset procedure.

Image Adjustments and Consumable Service

The operational descriptions trace CCD scanning, laser writing, and electrostatic image formation, including fuser temperature control. Factory procedures cover copy magnification, image-start position, center offset, and edge-void adjustment. Copy and FAX density settings are documented separately from main-charger grid-bias and developing-bias adjustments, which include electrical test points and meter requirements.

Copy-density work references Sharp charts UKOG-0162FCZZ and UKOG-0089CSZZ, with a Kodak Gray Scale comparison. FAX-density procedures specify TRAP23109SCZZ (CCITT #3). The lens unit and laser optical unit are treated as complete replacement assemblies rather than individual optical-component repairs.

Consumable sections identify market-specific toner, developer, and drum supplies, production-lot markings, and operating/storage conditions. Drum service covers the cleaning blade, felt placement, and new-drum detection mechanism; transfer-charger wire replacement is also detailed. Incorrect drum insertion can break the sub-blade edge, a risk specifically addressed in the assembly illustrations.

Wiring, Schematics, and Service Charts

The 25-page Circuit Diagram chapter contains MCU input/output and connector schematics, FAX electronics, the “Circuit Diagram (Low Voltage Block),” and the five-sheet “Actual Wiring Diagram.” The NCU telephone-line interface schematic is labeled for USA/Canada. CPU/ASIC pin tables and sensor signal-state information support board-level fault tracing.

Elsewhere, “Laser beam path,” “Time chart (Tray feed),” and “FAX-OPERATION FLOWCHART” document the optical path, feeder timing, and FAX communication sequence. Exploded assembly views accompany the mechanical procedures. Maintenance tables cover developer, DV blade, side seals, and drum replacement, with maintenance-counter and toner-status display information.