Ricoh Pro C651EX / C751EX / C751 Color Production Printer Service Manual – PDF Download
$38.95
Official Ricoh Service Manual for the Pro C651EX, C751EX, and C751 production printer series.
Includes installation, electrical and mechanical adjustments, Fiery controller setup, color calibration, error codes, firmware update, and detailed troubleshooting procedures.
Description
Ricoh Pro C651EX / C751EX / C751 (D074 / D075 / M044) Color Production Printer Service Manual – PDF Download
Long Description
⚙️ Overview
The Ricoh Pro C651EX / C751EX / C751 (D074 / D075 / M044) Service Manual provides complete factory maintenance and troubleshooting procedures for the high-end digital color production printer lineup.
It is the official Ricoh Americas Corporation publication (Rev. 03/2012), intended for trained technicians and certified Ricoh service engineers
390991685-RicohC651-Service-Man…
This guide covers both the copier-scanner variants (C651EX / C751EX) and the printer-only variant (C751). It explains all replacement procedures, error recovery methods, electrical board layouts, and controller diagnostics using Ricoh’s GW and Fiery systems.
IMAGES:
🧩 Main Sections
Product Overview & Specifications – Model identification, base configuration, new features (single-direction development, improved fusing, purge tray, liquid cooling, non-interruptive toner replenishment).
Installation & Setup – Electrical supply, space requirements, assembly sequence, Fiery controller connection, paper library setup, and registration calibration.
Preventive Maintenance (PM) – PM counter, lubrication charts, parts yield table, and inspection schedules for drum, ITB, PTR, and fusing assemblies.
Replacement & Adjustments – Drum and development unit removal, ITB cleaning, laser unit servicing, sensor replacement, cooling fan layout, and lubrication points.
Firmware & Controller – Updating procedures for GW controller, NVRAM, and Fiery Color Controller E-41A.
System Maintenance – SP (Service Program) codes, service mode operations, and diagnostic test procedures.
Troubleshooting Section – Comprehensive SC error code tables, jam code reference, process control troubleshooting, and image-quality correction (density fluctuation, color loss, streaks, toner scatter, fusing defects).
Peripheral Devices – Finisher SR5030/SR5040, Decurler DU5010, LCIT RT5060, Folding Unit FD5010, Trimmer TR5040, Ring Binder RB5010, High-Capacity Stacker SK5020, and others.
🧠 Technical Highlights
| Feature | Specification |
|---|---|
| Print Speed | 65 / 75 ppm (A4, Full Color) |
| Resolution | 1200 × 4800 dpi |
| Engine Type | Tandem 4-drum dry electrostatic transfer |
| Toner Type | Ricoh PxP polymerized |
| Controller | Fiery E-41A / Ricoh GW Controller |
| Cooling System | Liquid + Air dual cooling |
| Power Supply | 208–240 V AC, 16 A |
| Max Paper Size | 13″ × 19.2″ (330 × 487 mm) |
| Supported Media | 52 – 300 g/m² coated / uncoated |
| Color Calibration | MUSIC (Mirror Unit Skew Interval Correction) |
| Weight | Approx. 350 kg (main engine only) |
📄 File Details
| Parameter | Details |
|---|---|
| File Name | 390991685-RicohC651-Service-Manual.pdf |
| Manual Type | Service Manual |
| Document Code | D074 / D075 / M044 |
| Revision Date | March 2012 |
| Manufacturer | Ricoh Americas Corporation |
| Language | English |
| Pages | ≈ 2456 |
| File Size | ≈ 73.5 MB |
| Format | Searchable PDF (OCR enabled) |
| Compatibility | Windows / macOS / Android / iOS |
| Delivery | Instant Digital Download |
