Fujitsu 5750C Service Manual

The Fujitsu 5750C is a high-performance document scanner designed for professional office environments, featuring advanced image processing, automatic document feeding, and network connectivity capabilities. This service manual provides comprehensive technical information for qualified service personnel including disassembly procedures, maintenance guidelines, troubleshooting steps, and replacement part information.

1. Product Overview 2. Technical Specifications 3. Installation Procedures 4. Maintenance Schedule 5. Disassembly Instructions 6. Component Replacement 7. Troubleshooting Guide 8. Error Codes 9. Firmware Updates 10. Parts List 11. Safety Information

Product Overview

The Fujitsu 5750C scanner features a 100-sheet automatic document feeder, dual CCD sensors for duplex scanning, and USB 3.0/Network connectivity options.

Component	Description
ADF Capacity	100 sheets (20 lb bond)
Scanning Speed	Up to 60 ppm (mono), 120 ipm
Optical Resolution	600 dpi
Interface	USB 3.0, Gigabit Ethernet
Paper Size	Letter, Legal, A4, A5, B5
Warm-up Time	15 seconds or less
Power Consumption	45W (operation), 8W (standby)
Dimensions	312mm (W) x 178mm (H) x 345mm (D)
Weight	8.2 kg
Operating Environment	10-32°C, 20-80% humidity

Technical Specifications

Scanning Method: Color/monochrome dual CCD contact image sensor
Color Depth: 24-bit color, 8-bit grayscale, 1-bit monochrome
Document Size: Minimum 50.8 x 50.8 mm, Maximum 216 x 356 mm
Daily Duty Cycle: 6,000 pages
Recommended Media: Plain paper, recycled paper, bond paper
Supported OS: Windows 7/8/10/11, Windows Server, macOS
Power Requirements: AC 100-240V, 50/60Hz
Certifications: ENERGY STAR, RoHS, WEEE compliant

Installation Procedures

Follow these steps for proper scanner installation and setup.

Unpack scanner and verify all components are present
Place on stable, level surface near power outlet
Connect power cable to scanner and wall outlet
Connect USB cable to computer or network cable to router
Install scanner drivers and software from provided media
Power on scanner and run initialization sequence
Perform test scan to verify proper operation

WARNING! Use only approved power cables and ensure proper grounding.

Maintenance Schedule

Regular maintenance ensures optimal scanner performance and longevity.

Maintenance Task	Frequency	Procedure
Clean scanning glass	Weekly	Use lint-free cloth and approved glass cleaner
Clean ADF rollers	Monthly	Use isopropyl alcohol and lint-free cloth
Clean separation pad	Monthly	Remove and clean with approved cleaner
Lubricate moving parts	6 months	Apply approved lubricant to guide rails
Full calibration	Annually	Run built-in calibration utility

Disassembly Instructions

Step-by-step disassembly procedures for service access.

Power off scanner and disconnect all cables
Remove top cover by releasing 6 securing clips
Remove document feeder assembly (4 screws)
Remove front control panel (2 connectors, 3 screws)
Remove main board cover (5 screws)
Disconnect ribbon cables from main board
Remove CCD assembly (8 screws, 2 connectors)

CAUTION! Handle CCD sensors with care to avoid damage.

Component Replacement

Replacement procedures for common service parts.

ADF Pickup Roller: Remove old roller, clean shaft, install new roller
Separation Pad: Remove pad assembly, clean housing, install new pad
Scanning Lamp: Disconnect power, remove lamp cover, replace lamp
CCD Sensor: Full disassembly required, recalibration needed
Main Board: Transfer all connectors and firmware chip

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Scanner not detected	Driver issues, cable problems	Reinstall drivers, check USB/network connection
Paper jams frequent	Worn rollers, dirty separation pad	Replace pickup roller, clean separation pad
Poor image quality	Dirty glass, calibration needed	Clean scanning surfaces, run calibration
ADF not feeding	Worn rollers, paper dust	Clean rollers, replace if necessary
Scanner powers off	Power supply, overheating	Check power cable, ensure ventilation

Error Codes

Common error codes and their resolutions.

Error Code	Description	Resolution
E101	ADF communication error	Check cable connections, reset scanner
E205	CCD sensor error	Clean sensors, check connections
E310	Motor timeout error	Check for obstructions, replace motor
E420	Temperature error	Allow cooling, check ventilation
E501	Memory error	Reset scanner, update firmware

Firmware Updates

Firmware update procedures and precautions.

Download latest firmware from Fujitsu support website
Ensure scanner is connected and powered on
Run firmware update utility with administrator privileges
Do not power off scanner during update process
Scanner will automatically restart after update completion
Verify firmware version in scanner properties

WARNING! Interrupted firmware updates may render scanner inoperable.

Parts List

Common replacement parts and their part numbers.

Part Description	Part Number	Notes
ADF Pickup Roller	CA04516-0101	Replace every 100,000 pages
Separation Pad	CA04516-0201	Replace every 50,000 pages
Scanning Lamp	CA04516-0301	Expected life 10,000 hours
CCD Sensor Assembly	CA04516-0401	Handle with extreme care
Main Control Board	CA04516-0501	Includes firmware chip

Safety Information

Important safety precautions for service personnel.

Always disconnect power before performing any service
Use approved tools and replacement parts only
Follow electrostatic discharge (ESD) precautions
Do not attempt to service high-voltage components
Dispose of replaced components according to local regulations
Keep work area clean and organized
Wear appropriate personal protective equipment when required

CAUTION! This manual is intended for qualified service personnel only.