2007 Epson Stylus Pro 11880/11880C Factory Service Manual (P/N SEIJ07008)

Epson's factory service manual SEIJ07008, Revision B (December 26, 2007), covers the 2007 Epson Stylus Pro 11880 and 11880C large-format color inkjet printers, with mechanical, electrical, maintenance, and repair information.

• Fault diagnosis: Error-message tables, maintenance-request codes, service-call remedies, and symptom-based troubleshooting for missing dots, ink smears, and horizontal or vertical banding.

• Printhead and ink system: Printhead replacement, Ink System Unit removal, pressure-pump service, ink discharge, initial ink charging, and ink-path air-leak checks.

• Carriage and paper feed: Carriage removal, CR/PF motor and encoder replacement, belt-tension adjustments, cutter positioning, and paper-thickness sensor adjustment.

• Electronics and housing: Cover and control-panel removal, main-board and power-supply replacement, connector assignments, NVRAM backup, and firmware installation procedures.

• Calibration and final checks: Head Rank ID entry, Colorimetric Calibration (Color ID), Auto Bi-D/Uni-D adjustment, AID inspection, nozzle checks, and alignment verification.

This manual is written for experienced repair technicians; Epson specifies that repairs should be performed by Epson-certified personnel.

Error Codes and Print-Quality Diagnosis

Service-call tables address faults such as the 1137 CR servo parameter error and 1437 cap motor drive timeover error, identifying causes and the relevant checks or replacement assemblies. Separate symptom tables distinguish printhead, paper-feed, encoder, and adjustment-related causes of banding and ink smears.

Ink-level and maintenance-tank tables map LCD indicators to the remaining ink and tank capacity.

Ink Supply, Carriage, and Paper Feed

The Ink Supply Mechanism and Operation of the Ink System Unit illustrations explain the pressure pump, caps, wipers, and waste-ink path. The operating-principles chapter also describes how Auto Ink droplet Detection (AID) detects missing dots and triggers cleaning.

Ink-path leak checks require an Ink Leak Measurement Jig (1430064) with a GC66 digital pressure gauge.

Disassembly flowcharts identify access requirements before individual removal procedures. The Platen Gap Adjustment Mechanism illustration explains carriage-height control, while the Paper Cutting Position Check figure identifies the cutter's measurement reference.

The printhead removal section warns that contact with the nozzles or ink-supply needles can damage them. The manual also restricts disassembly of the factory-aligned frame and certain precision assemblies.

Maintenance coverage includes platen and CR-scale cleaning, plus specified lubrication points for the driven roller and carriage guide rail.

Board Replacement and Color Calibration

Electrical specifications distinguish the 100/120V and 220/240V models. The Layout of Electric Circuit Boards, connector-assignment tables, and Block Wiring Diagram identify board locations and connections to motors, sensors, and ink-system components.

The replacement tables distinguish removing a component from installing a new one. Main-board adjustments also differ depending on whether the original NVRAM data can be recovered, helping you plan the calibration work required after a board replacement.

Colorimetric Calibration (Color ID) addresses unit-to-unit color variation through correction values stored in NVRAM and used by the printer driver. Both on-site measurement and a separate color-measurement workflow are described, using a GretagMacbeth eye-one (i1) calibrator with a UV filter.

The documented software procedures specify Windows 2000/XP and USB. The PDF provides instructions for the Adjustment Program, NVRAM Backup Utility, and firmware tools; the software, firmware files, and calibration equipment are separate requirements.

Incorrectly seated flexible flat cables can damage connector terminals and board circuitry. Follow the manual's electrical-isolation and grounding precautions, including its warning about residual charge in the power-supply capacitors.

Selected Electrical, Environmental, and Cutter Specifications

These examples show a small selection of the manual's electrical limits, operating conditions, and mechanical check data.

Insulation resistance is specified as at least 10 MΩ between the AC line and chassis at 500 VDC. Operating humidity is 20–80%, without condensation.

The paper-cutting position check specifies a gap of 0.5 mm (+0.2/−0.3 mm) between the cut line and the edge of the elevated portion on the sub-platen.

Search, Bookmarks, and PDF Contents

Text navigation and diagram detail: Main text is searchable, and embedded bookmarks navigate the chapters and service sections. Labels within the block wiring diagram are not searchable; its small connector labels are readable when enlarged.

Supplied as one printable 264-page PDF: seven pages of front matter, 234 pages covering Chapters 1–6, and a 23-page appendix containing the wiring diagram, parts list, and 16 exploded-view sheets. All of these pages are included in the stated total.