EPSON Stylus Photo RX680/RX685/RX690 Factory Service Manual

• Covers the 2007 EPSON Stylus Photo RX680, RX685, and RX690 color inkjet printer family, documenting mechanical, electrical, and optical operational principles
• Official OEM publication P/N SEMF07008, revision B (September 2007)
• Contains 207 pages of technical data, including detailed exploded-view diagrams, electrical circuit board schematics, and mechanical system breakdown
• Revision B serves as the definitive reference for the launch series, incorporating vital Chapter 5 error corrections regarding service adjustment programming

Manual Configuration and Chapter Walkthrough

This official service publication provides a structured overview of factory documentation for the EPSON Stylus Photo RX680, RX685, and RX690 series. Organized into six primary chapters and an appendix, the manual details the electrical and mechanical theory driving the F-Mach Turbo 2 printhead, scanner carriage assembly, and paper feeding mechanisms. It breaks down the complete operational logic for standby, printing, and scanning modes. You will also find deep dives into the sophisticated banding reduction system and paper feed amount profile correction techniques.

Technicians rely on this content to map out internal electrical circuits. It covers the main board, power supply, and control panel board logic in detail. The text outlines specific motor control parameters and sensor input thresholds necessary for diagnosing complex faults in the scanner carriage, duplex unit, and paper loading systems. Furthermore, it details the integration of USB interfaces and the internal memory card controller. This gives essential context for interpreting exact error codes generated by the printer firmware.

Specification and Data Highlights

The publication delivers precise reference values required for assembly and bench testing. The print engine utilizes 540 nozzles in a 6-column configuration. It reaches a maximum resolution of 5760 x 1440 dpi with a nozzle pitch of 0.282 mm.

• The CR motor (Mabuchi RS445PD-16175BR) operates at 42V DC utilizing PWM constant-current chopping.
• The scanner unit CIS board supports a maximum resolution of 1200 x 2400 dpi.
• Power consumption runs at 20 W during standalone copying, dropping to 0.3–0.6 W when powered off, depending on the regional voltage model.
• The estimated total print life is 16,000 black pages or 10,000 color pages.

Because these specifications deal with high-voltage internal components and sensitive mechanical alignments, all service work and diagnostics must be performed by EPSON-certified repair technicians. The documentation serves strictly as a technical reference outlining complete disassembly, adjustment, and electrical schematic specifications, rather than a step-by-step consumer repair guide.