SP C352DN
Troubleshooting
Mottling/Uneven Transfer
Problem
Due to insufficient transfer ability, mottling/uneven transfer may occur.
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Read This First
Symbols, Abbreviations and Trademarks
Symbols, Abbreviations
Trademarks
Product Information
Product Overview
Component Layout
Paper Path
Drive Layout
Electrical Components 1
Electrical Components 2
Machine Codes and Peripherals Configuration
Machine Names
List of Options
Specifications
Guidance for Those Who are Familiar with Predecessor Products
Differences between Similar Models
SP C352 vs. SP C730
SP C352 vs. SP C320
Installation
Installation Requirements
Environment
Machine Space Requirements
Power Requirements
Main Machine Installation
Main Machine Installation
Moving the Machine
Transporting the Machine
Option Installation
Paper Feed Unit TK1230 (M407)
Paper Feed Unit TK1240 (M408)
USB Device Server Option Type M19 (D3BC-28, -29)
Component Check
Interface Board Surface
Installation Procedure
What Do the LED Indications Mean?
IP Address Setting
Preventive Maintenance
Preventive Maintenance Tables
Image Quality Standards
Paper Transfer Quality Standards
Preparation for PM
Replacement and Adjustment
General Cautions
Notes on the Main Power Switch
Characteristics of the Push Switch (DC Switch)
Shutdown Method
Forced Shutdown
Special Tools
Exterior Covers
Rear Cover
Paper Exit Cover (with Operation Panel)
Right Cover
Left Cover
Front Cover Unit
Upper Cover
Reinstalling the Upper Cover
LED Optics
LED Head
Toner End Sensor
Discharge Lamp
PCDU
PCDU
PCDU Cover (Right)
Image Transfer
Image Transfer Belt Unit
After installing a new Image Transfer Belt Unit
Image Transfer Belt Cleaning Unit
Transfer Roller
After installing a new Transfer Roller
Drive Unit
Transfer/Transport Motor
Fusing Motor
Drum Motor: K
Drum Motor: CMY
Duplex Inverter Solenoid
Toner Supply Solenoid
Paper Feed Clutch, ITB Contact Clutch and Drive Gears
Registration Clutch
Toner Supply Clutch
Bypass Feed Clutch
Duplex Intermediate Clutch
Duplex Paper Exit Clutch
Bypass Bottom Plate Clutch
Fusing
Fusing Unit
Thermistor
Thermostat
Fusing Belt Unit
Fusing Lamp
Thermopile (with Bracket)
Paper Feed
Paper Feed Roller
Friction Pad
Bypass Tray Unit
Bypass Feed Roller
Bypass Friction Pad
Paper Size Switch
Paper End Sensor
Bypass Paper End Sensor
Bypass Bottom Plate Home Position Sensor
Paper Transport
Fusing Entrance Sensor
Duplex Sensor
Registration Sensor
Paper Exit Sensor
Paper Exit Full Sensor
Registration Roller (Drive)
Registration Roller (Driven)
Paper Exit/Reverse Roller
Duplex Entrance Roller
Duplex Intermediate Roller
Duplex Exit Roller
Waste Toner
Waste Toner Bottle
Waste Toner Bottle Set Switch
Waste Toner Full Sensor
Waste Toner Duct
Electrical Components
ID Chip Relay Board
Temperature & Humidity Sensor
Engine Board
When installing the new engine board
Controller Board
PSU
High Voltage Power Supply Board
When Installing the New High Voltage Power Supply Board
PCDU Sensor Board
TM (ID) Sensor
Before TM (ID) sensor replacement
Replacement
Adjustment after the TM (ID) sensor replacement
SD/USB Board
Operation Panel
Fusing Fan Motor
Cooling Fan Motor
Reinstalling the cooling fan motor
PSU Fan Motor
Interlock Switch
NVRAM
NVRAM on the controller
EEPROM on the engine board
Adjustment after Replacement
Touch Screen Calibration
Service Table
Service Program Mode
SP Tables
Enabling and Disabling Service Program Mode
Entering SP Mode
Exiting SP Mode
Types of SP Modes
Service Mode Lock/Unlock
Updating the Firmware
Updating Firmware
Preparation
Updating Procedure
Error Messages
Firmware Update Error
Recovery after Power Loss
Handing Firmware Update Errors
Error Message Table
Uploading/Downloading NVRAM Data
Uploading Content of NVRAM to an SD card
Downloading an SD Card to NVRAM
RFU Updating the Firmware
RFU Performable Condition
Firmware Update (Smart Firmware Update)
Overview
Immediate Update
Update at the Next Visit (Reserve)
How to Set the Machine to Download Firmware Later (Reserve)
How to Check if the Firmware Downloaded with Reserve
How to Install Firmware Downloaded with Reserve
Update via SD card
Capturing the Device Logs
Overview
Security of the Operation Log
Retrieving the Device Logs via Operation Panel
Procedure for Retrieving the Device Log with SD Card
Retrieving the Device Logs via Web Image Monitor
Table of file names of the device logs saved
Updating JavaVM
Overview
Deactivating SDK Applications
Updating JavaVM
Activating SDK Applications
SMC List Card Save Function
Overview
SMC List Card Save
Procedure
File Names of the Saved SMC Lists
Error Messages
UP/SP Data Import/Export
Outline
UP Data Import/Export
Data that can be imported and exported
Data that cannot be imported or exported
Exporting Device Information
Importing Device Information
SP Data Import/Export
Data that can be imported and exported
Exporting Device Information
Importing Device Information
Possible solutions for import/export problems
Card Save Function
Overview
Card Save:
Procedure
Error Messages
Troubleshooting
Self-Diagnostic Mode
Self-Diagnostic Mode at Power On
Service Call
Service Call Conditions
LED Optics
Image Processing
Paper Feed and Fusing
Device Communication
Peripherals
Service Call (Controller)
Jam Detection
Sensor Position
Jam Code
Paper Feed
Bypass Tray
Bank
Duplex
Electrical Component Defects
Image Quality
Overview
Checking a Sample Printout
Printer Driver Setting for Printing a Sample
Mottling/Uneven Transfer
Problem
Cause
Solution
Reference (Transfer voltage control specifications)
Paper Size Classification
Paper Size Classification: S1
Paper Size Classification: S2
Paper Size Classification: S3
Adjust the Change of Color
Problem
Cause
Solution
Correct the Color Gradation Automatically
Setting Gradation Correction Values
Overview
Procedure
When SC491-01 Is Displayed
Summary
Examining Components
Examining the HVP
Examining the ITB Unit
Examining the Transfer Roller Unit
When SC365/SC332 Is Displayed
SC365
Cause
Solution
SC332
Problem
Cause
Solution
Checking Toner Supply to PCDU
Other Problems
Blown Fuse Conditions
EGB Fuses
PSU Fuses
Detailed Descriptions
Product Overview
Component Layout
Paper Path
Drive Layout
Electrical Components 1
Electrical Components 2
LED Unit
General Descriptions
LED Head Components
Mechanisms
Writing method
LED Head
Toner Cartridge, PCDU (Photo Conductor Development Unit)
Overview
Toner Cartridge
PCDU
Mechanism
Toner Cartridge
PCDU
Image Transfer
Overview
Image Transfer Belt Unit
Drive and Transfer Belt Roller Bias
Transfer Belt Contact
New ITB Unit Detection
Image Transfer Belt Cleaning
Overview
Transfer Roller
Overview
Drive
Power Transfer bias
Separation and Transport
Paper Transfer Roller Cleaning
Fusing
General Description
QSU (Quick Start Up) Fusing Method
Drive Mechanism
Thermal Control Mechanism
Paper Feed
Overview
Paper Feed
Mechanism
Paper Feeding
Paper Volume Detection
Adjustable Cassette
Paper size detection
Paper Feed Tray Bottom Plate lifting mechanism
Bypass Tray paper feed operation
Bypass Feed Tray automatic lifting system
Bypass Paper Set Detection / End Detection
End fence and side fences
Paper Transport
Overview
Mechanism
Duplex
Paper Exit
Operation of the Paper Exit/Duplex in Duplex printing
Duplex Productivity
Waste Toner
Overview
Mechanism
Waste toner bottle set detection
Waste Toner Bottle Near Full/ Full Detection
Number of sheets that can be printed after indicating Near End (reference value)
Electrical Components
Block Diagram
Board Functionalities
Process Control
Overview
Process Control
MUSIC (Mirror Unit for Skew and Interval Correction)
IBACC
Process Control Self-check
IBACC (Execution Method)
Sensor Configuratrion
Energy Save
Energy Saver Modes
Sleep Mode Setting
Eco Night Mode
Weekly Timer
Fusing Off Mode
Return to Stand-by Mode
Recommendation
Energy Save Effectiveness