2003–2004 Epson Stylus PHOTO RX600/610/RX620/630 Service Manual (P/N SEOT03006)

Epson document SEOT03006, Revision C (September 15, 2004) is the 106-page factory service manual for the Stylus PHOTO RX600/610 and RX620/630 scanner-printer-copier family. Revision C specifically adds RX620/630 coverage. Epson identifies experienced repair technicians as the intended audience and states that repairs should be performed by Epson-certified personnel; this is a bench-level repair PDF, not an owner's operating guide.

• Fault isolation: Unit-level flowcharts separate no-power/no-operation, detected-error, print-quality, paper-feed, control-panel, and scanner faults before drilling into the printer, scanner, USB, memory-card, motor, and sensor check tables.

• Printer mechanism repair: Covers removal and installation of the CR scale, carriage, printhead, ASF, power unit, front frame, front paper guide, waste-liquid pad, damper, stacker, and C543 main board, with component-specific screw and torque data.

• Scanner and panel repair: Details panel-board and LCD disassembly plus scanner-unit teardown through the upper housing, CCD module, scanner motor, timing belt, CR shaft, and HP sensor board.

• Post-repair adjustment: The Epson adjustment-program section covers market initialization, USB and head ID entry, head-angle, top-margin/first-dot-position, bidirectional, PW-sensor, and carriage-motor heat-protection calibration, followed by normal- and photo-paper check patterns.

• Service-program functions: Includes intensive head cleaning, initial ink charging after printhead or printer-mechanism replacement, the one-time Refurbishment for DOA routine, waste-ink counter service, EEPROM backup and restoration, complete EEPROM data export, and firmware uploading.

• Technical appendix: Provides C543 connector assignments and component layout, six schematic sheets for the main, panel, PSB, and PSE boards, six numbered exploded-diagram sheets, and a matching ASP parts-reference list.

Model and Regional Details

The manual distinguishes the RX600/610 from the RX620/630 by operation-panel design and LCD specification. Its CompactFlash update section assigns FWD12UP.dat to the RX600/610 and FWE91TLS.dat to the RX620/630. Regional service data separates Europe/EAI cartridges T0481-T0486 from Asia/Latin cartridges T0491-T0496, while the electrical table distinguishes 100 V, 120 V, and 220-240 V models. It also identifies EAI-only Wallet Photo Copy behavior and separate EMC/EAI LCD wording. These details matter when initializing a replacement main board, selecting firmware, or confirming consumables. The cartridge section expressly notes that these inks are not compatible with the Stylus CX3100/3200.

Revision C assigns the appendix to all four covered models, but the individual circuit and exploded-diagram title blocks retain earlier PM-A850/A850V and RX600/610-family labels. This is the shared C543 reference material supplied in this edition, not a separately redrawn RX620/630 schematic set.

Diagnosis Beyond the Error Message

Printer troubleshooting ties symptoms such as pump failure, poor ink absorption, abnormal carriage travel, missing dots, misaligned vertical lines, white-line defects, misfeeds, multiple-sheet pickup, and initialization stalls to the capping and pump path, head FFC, CR/PF motors, carriage guide and belt, ASF clutch and return parts, PE/PW sensors, and main board. Scanner tables cover startup, carriage motion, fluorescent lamp and inverter operation, CCD image quality, CR home-position sensing, and USB communication. Motor-resistance and sensor-signal tables supply the related electrical test points.

Adjustment and Repair Cautions

The replacement matrix maps main-board, printhead, printer-mechanism, CR-motor, power-unit, and waste-pad work to the required EEPROM entries, alignments, counter resets, firmware, and ink-service operations. When readable, adjustment data from the original main board can be backed up and restored to its replacement, preserving the USB ID, head data, calibration values, and ink counters.

After the middle housing is installed, the waste-ink tube must remain correctly seated in the porous pad; incorrect routing can cause ink leakage. The manual also requires the calorific-limitation routine after specified CR-motor or power-supply work because omitting it can burn the motor coil, while running it for unrelated parts is prohibited.

Bench Reference and Maintenance

Fastener identification and component-specific torque specifications are paired with removal illustrations. The tool table identifies Epson codes for the specified hand tools and the 2000 cN tension gauge (1213123). Maintenance data covers cleaning and lists G-26 (1080614) and G-58 (1082176) grease, with illustrated application points for the scanner CR shaft and driven-shaft area, ASF, front and main frames, and carriage.

For safe repair work, Epson requires the power cord to be disconnected before disassembly and warns technicians to use ESD protection around circuit boards. Power should be applied only when a test procedure specifically calls for it, with particular care around the power supply and other electronic components.