Sharp MX-2300/2700 Color Copier Service Manual, 2005 (P/N 00ZMX2700/S1E)

Sharp’s factory service manual (P/N 00ZMX2700/S1E), printed in January 2006, covers the MX-2300G, MX-2300N, MX-2700G, and MX-2700N digital full-color multifunctional systems.

PDF Search, Bookmarks, and Wiring Detail

Finding text and tracing wiring: Search the manual text or use the embedded bookmarks to jump to chapters and individual wiring charts. Zoom in to read small connector IDs, pin numbers, and signal labels on dense wiring pages.

The download is one printable PDF with 428 pages, including the cover, contents page, two memo pages, lead-free solder and battery notices, and the copyright page.

Copier Repair, Calibration, and Fault Diagnosis

These are selected service topics. The manual also covers operation-panel disassembly and administrator settings.

• Scanner and paper path: Step-by-step disassembly and reassembly for the optical scanner, bypass and tray feed, registration rollers, duplex gates, and paper exit.

• Image-forming system: Service coverage for OPC drums and charging, toner supply and developing units, primary and secondary transfer, and process-control and registration sensors.

• Fuser repair: Illustrated procedures for heat rollers, heater lamps, thermistors, and thermostats, with separate coverage of the fusing drive.

• Factory adjustments: Developing doctor gap and main-pole alignment, toner-density reference, high-voltage outputs, laser scanner unit (LSU) skew, OPC drum phase, and image registration.

• Service simulations: Operation checks for motors, sensors, clutches, solenoids, fans, lamps, and transfer and developing circuits, plus trouble and jam histories and adjustment-data printouts.

• Electrical references: Power-supply and fuser wiring charts, system and controller block diagrams, and a connector and pin signal list.

The manual is suited to copier service technicians familiar with service-mode simulations and electrical fault tracing.

G and N Configurations

G models use SPLC-c/GDI printing as standard. PCL printing and network scanning require the corresponding kits and memory expansion. The reversing single-pass feeder (RSPF) is optional on G models and standard on N models, which also come with PCL printing. All four have automatic duplexing, HDD storage, and document filing.

Sharp’s lineup and options list show network scanning on both N models. The machine configuration table marks it standard on the MX-2700N and shows a dash for the MX-2300N, so check the installed configuration before selecting a scanner kit.

The options list identifies the G-model document cover, paper-feed stands, large-capacity tray, inner and saddle-stitch finishers, and punch units. It also covers the PS3, Internet Fax, facsimile, security, and application modules.

Fault Isolation and Preventive Maintenance

The self-diagnostic tables pair fault codes with the affected control block, operating restrictions, likely causes, and checks. This helps connect a symptom to the correct repair area before replacement parts are selected. For an H4-00 low-temperature fault, the lamp operation check helps separate heater circuit faults from thermistor or harness faults.

The wiring references include the system and MFP controller PWB block diagrams, the power-supply and fuser wiring charts, and the scanner electrical and mechanical layout. The fuser section identifies the upper and lower heater circuits, center and edge temperature sensors, and overheat thermostats HLTS1, HLTS2, and HLTS3.

Maintenance schedules and counter resets cover recurring work, including fan, filter, and ozone-control service. Regional tables identify toner, developer, drum, and drum-unit part numbers and distinguish voltage-specific fuser service units. The manual also explains the production markings on drum cartridges, developer, and toner cartridges.

Firmware procedures cover direct USB, USB memory, FTP, and the service web page. Service simulations provide ROM version checks and printouts of settings and adjustment data for follow-up service.

Calibration and Repair Precautions

The adjustment chapter ties the job sequence to the parts replaced or disturbed. It covers scanner parallelism and focus, print and copy positioning, color balance, density, and touch-panel coordinates. The process-control procedures also show where the image sensor calibration jig is used.

Loosening the marked CCD base screws can shift the scanner alignment beyond field adjustment and require scanner-unit replacement. Excessive heat during lead-free PWB repair can lift circuit-board pads or damage components.

Sharp’s servicing notes call for disconnecting power and external communication cables during routine service. They flag the hot fuser, high-voltage circuits, laser unit, and moving belts and gears.

Installation, Feeder Adjustments, and Parts

This manual covers the main unit. Sharp directs unpacking and installation to the separate 00ZMX2700/I1E installation manual and refers RSPF skew, magnification, off-center, and tray-width adjustments to the separate MX-RPX1 service manual. The maintenance tables refer to the separate Parts Guide for catalog block and item numbers.

Developer Gap and Main-Pole Adjustment Examples

The developing doctor gap check specifies 0.40 ± 0.05 mm at points 40–70 mm in from each end of the blade.

For the developing roller’s main-pole alignment, Sharp gives a reference distance of 37.8 ± 0.5 mm from the marked pole position on the roller to point A on the developing-unit frame.