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Sharp MX-C250F

Sharp MX-C250F
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SERVICE MANUAL
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
NOTE FOR SERVICING
[1] PRODUCT OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[3] CONSUMABLE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
[4] EXTERNAL VIEW AND INTERNAL STRUCTURE . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[5] ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
[6] SIMULATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[7] TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[8] FIRMWARE UPDATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
[9] MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
[10] DISASSEMBLY AND ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
[11] OPERATIONAL DESCRIPTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
[12] ELECTRICAL SECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
[13] OTHERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
TopPage
CONTENTS
CODE: 00ZMXC250/S4E
MX- C250/C250E
MX- C250F/C250FE
MX- C300F/C300W
MX- C300WE
MODEL
DIGITAL FULL COLOR
MULTIFUNCTIONAL SYSTEM

Table of Contents

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Sharp MX-C250F Specifications

General IconGeneral
FunctionsPrint, Copy, Scan, Fax
Print Resolution600 x 600 dpi
Copy Resolution600 x 600 dpi
Scan Resolution600 x 600 dpi
Fax Modem Speed33.6 Kbps
Max Paper SizeA4
Operating System CompatibilityWindows, macOS, Linux
TypeLaser
Print Speed25 pages per minute
Copy Speed25 cpm (A4)
Paper Capacity250 sheets
Paper SizeA4, A5, B5, Letter, Legal
Duplex PrintingYes
ConnectivityUSB, Wi-Fi
DisplayLCD

Summary

1. PRODUCT OUTLINE

System configuration

Describes the overall system components and their interconnections.

Product list

Lists the available models and their configurations across different regions.

Option list

Details optional accessories and their compatibility with machine models.

2. SPECIFICATIONS

Basic specifications

Covers fundamental engine, copy, printer, and scanner/FAX specifications.

Engine speed (ppm)

Details the printing speeds for various paper sizes and trays.

Printable area

Specifies the maximum printable dimensions for different paper types and sizes.

Engine resolution

Lists the scanning and printing resolutions supported by the machine.

Scanner section

Outlines scanner capabilities including resolution and gradation for copying and transmission.

Copy functions

Describes the first copy time and job speed for copy operations.

Printer function

Details supported operating systems and driver compatibility for printing.

ScannerFax function

Explains transmission methods, support lines, and image quality processes for scanning and faxing.

Paper feed section

Covers paper handling capabilities for main unit, optional drawers, and bypass tray.

Paper exit section

Details paper ejection capacities and specifications for duplex and exit trays.

3. CONSUMABLE PARTS

Supply system table

Lists consumable parts and their quantities by region.

Maintenance parts list

Details maintenance parts and their replacement intervals by region.

Definition of developerdrum life end

Explains how the end of life for developer and drum cartridges is determined.

Production number identification

Explains how to identify production numbers on toner and developing units.

Environmental conditions

Specifies the standard and usage environmental conditions for the machine.

4. EXTERNAL VIEW AND INTERNAL STRUCTURE

External view

Provides a labeled diagram identifying external components and their functions.

Document feeder and document glass

Explains the function and operation of the document feeder and glass.

Operation panel (Europe, Asia)

Details the function of each key and indicator on the operation panel.

Operation panel (USA)

Lists the functions of the operation panel keys and indicators for USA models.

SPF

Describes the rollers and detectors within the Single Pass Feeder (SPF) unit.

RSPF

Details the rollers and detectors within the Reversing Single Pass Feeder (RSPF) unit.

Sensor, Detector

Lists various sensors and detectors and their functions within the machine.

Switch

Identifies and explains the function of key switches like main power and door switches.

Clutches and solenoids

Lists and describes the function of various clutches and solenoids controlling paper transport.

Motors

Identifies the motors and their specific functions within the machine's operation.

Rollers

Details the various rollers and their functions in paper transport and fusing.

Lamps

Lists the lamps used in the machine and their functions, such as fusing and discharge.

Fans and filters

Identifies cooling fans and ozone filters and their roles in machine operation.

PWB

Lists the main Printed Wiring Boards (PWBs) and their functions in controlling machine operations.

FusesThermostats

Details the location and specifications of fuses and thermostats for protection.

5. ADJUSTMENTS

General

Provides general guidelines for performing adjustments and their importance.

Adjustment item list

Lists all adjustable items with their corresponding job numbers and simulation codes.

Details of adjustment

Provides step-by-step instructions for specific adjustment procedures.

6. SIMULATION

General (Including basic operations)

Explains the purpose and basic operations of the simulation mode.

List of simulation codes

Provides a comprehensive list of simulation codes, their functions, and relevant sections.

Details of simulation

Offers specific operational procedures for various simulation codes.

Soft switch (Detail of Sim. 66-1)

Details the soft switch settings for FAX-related functions and their parameters.

7. TROUBLESHOOTING

Error code and troubleshooting

Explains how the machine detects and displays errors, and the general troubleshooting approach.

JAM and troubleshooting

Lists JAM codes, their causes, and troubleshooting steps for paper jams.

Image send communication report code

Details the communication report codes for image send functions and their meanings.

Dial tone

Discusses dial tone detection settings and confirms proper operation.

8. FIRMWARE UPDATE

Outline

Outlines the cases requiring ROM update and notes for the process.

Update procedure

Provides instructions for updating firmware using USB memory.

9. MAINTENANCE

Necessary work for maintenance

Covers essential maintenance tasks like counter resets and initial settings.

Toner density initial setting

Explains how to perform the initial setting for toner density after replacing cartridges.

Auto color calibration (auto color balance adjustment) according to the guidance

Guides the user through the auto color calibration process when specific parts are replaced.

Other

Lists other maintenance items such as skew adjustment and firmware version checks.

10. DISASSEMBLY AND ASSEMBLY

Disassembly of Units

Provides instructions for disassembling external units and covers.

Disassembly and assembly of each unit

Details the procedures for disassembling and reassembling internal units like PWBs and operation panel.

11. OPERATIONAL DESCRIPTIONS

Operation panel

Explains the structure and basic operation of the machine's control panel.

SPFRSPF section

Describes the operational functions of the Single Pass Feeder (SPF) and Reversing Single Pass Feeder (RSPF) units.

Scanner section

Details the electrical and mechanism aspects of the scanner unit's operation.

Manual paper feed section

Explains the electrical and mechanism components of the manual paper feed section.

Paper registration section

Describes the electrical and mechanism relation diagram of the paper registration section.

Paper feed tray section

Details the electrical and mechanism relation diagram of the paper feed tray section.

Paper exit section

Explains the electrical and mechanism relation diagram of the paper exit section.

Duplex section

Describes the electrical and mechanism relation diagram of the duplex section.

LSU section

Explains the electrical and mechanism relation diagram of the LSU section.

OPC drum section

Details the electrical and mechanism relation diagram of the OPC drum section.

Toner supply section

Explains the electrical and mechanism relation diagram of the toner supply section.

Developing section

Details the electrical and mechanism relation diagram of the developing section.

Transfer section

Explains the electrical and mechanism relation diagram of the transfer section.

Fusing section

Describes the electrical and mechanism relation diagram of the fusing section.

Fan and Filter section

Identifies the fans and filters and their functions in cooling and air purification.

12. ELECTRICAL SECTION

Block diagram

Presents the overall system block diagram showing interconnections of major components.

Power line diagram

Illustrates the AC and DC power supply lines and their connections.

Actual wiring chart

Shows detailed wiring connections between the MFPC, LSU, FAX, and USB components.

Signal list

Provides a comprehensive list of signals, their descriptions, connector and pin numbers, and PWB location.

13. OTHERS

Necessary steps when replacing the PWB and the HDD

Outlines the workflow and precautions for replacing main PWBs and the HDD.

TOOL LIST

Lists essential tools and their part codes required for servicing the machine.

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