Kyocera FS-C8520MFP - Detaching and Refitting the DP Main PWB

Kyocera FS-C8520MFP

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2MY/2MZ

1-5-29

(3) Detaching and refitting the DP main PWB

Procedure

1. Open the document processor.

2. Release three hooks of the DP rear

cover.

Figure 1-5-52

3. Release two hooks of the DP rear cover

and then remove it.

Figure 1-5-53

Document processor

Hook

Hook

Hook

DP rear cover

DP rear cover

Hooks

Table of Contents

Service Manual1
Revision History3
Safety Precautions5
Safety Warnings and Precautions6
Installation Precautions7
Precautions for Maintenance8
Contents11
Specifications11
Maintenance Mode11
Troubleshooting11
Assembly and Disassembly12
Table of Contents13
Specifications15
Document Processor17
- Printer18
- Scanner19
- Parts Names20
- Machine (Front Side)20
- Machine (Rear Side)22
- Operation Panel23
- Machine Cross Section24
- Installation Environment25
- Unpacking and Installation26
- Remove the Tapes and Spacer28
- Install the Job Separator Tray31
- Release the Scanner Lock Lever31
- Install the Optional Paper Feeder32
- Load Paper32
- Install the Toner Container34
- Connect the Power Cord36
- Installing Toner36
- Install the Other Optional Devices36
- Switch the Cassette Heater Switch36
- Output an Own-Status Report (Maintenance Item U000)37
- Exit Maintenance Mode37
- Print out a User Setting List37
- Make Test Copies37
- Install the Expansion Memory (Option)38
- Option Composition39
- Maintenance Mode41
- Executing a Maintenance Item41
- Maintenance Modes Item List42
- Contents of Maintenance Mode Items50
- Event Log51
- Detail of Event Log52
- Exiting the Maintenance Mode57
- Setting the Factory Default Data57
- Setting the Machine Number58
- Displaying the ROM Version59
- Memory Initializing60
- Checking the Operation of the Motors61
- Checking Switches and Sensors for Paper Conveying62
- Checking the Operation of the Solenoids63
- Checking the Operation of the Clutches63
- Adjusting the Print Start Timing64
- Adjustment: Leading Edge Registration Adjustment64
- Setting the Printing Area for Folio Paper67
- Checking the Operation of the Fan Motors67
- Adjusting the Deflection in the Paper68
- Setting the Adjustment of the Motor Speed69
- Adjusting the Shading Position70
- Adjusting the Scanner Magnification71
- Adjusting the Scanner Leading Edge Registration73
- Adjusting the Scanner Center Line74
- Adjusting the Scanning Position for Originals from the DP75
- Adjusting the DP Magnification76
- Adjusting the DP Scanning Timing78
- Adjustment: Trailing Edge Registration79
- Adjusting the DP Center Line80
- Adjusting the DP Input Light Luminosity81
- Outputting a MIP-PG Pattern82
- Adjusting Original Size Detection83
- Setting the Main High Voltage84
- Setting the Voltage for the Primary Transfer87
- Setting the Voltage for the Secondary Transfer89
- Setting the Voltage for the Intermediate Transfer Cleaning91
- Setting Separation Shift Bias92
- Checking the Drum Drive Time93
- Displaying the Drum History94
- Displaying the Transfer Belt Unit History94
- Checking/Clearing the Transfer Count95
- Checking Toner Motor Operation95
- Setting Toner Near End Detection96
- Displaying the Temperature and Humidity Outside the Machine96
- Setting Developer Bias97
- Setting for Toner Applying Operation98
- Checking Sensors for Toner99
- Checking the Developing Drive Time100
- Setting the Fuser Control Temperature101
- Checking/Setting the Fuser Count102
- Confirmation/Setting the Fuser Drive Time102
- Confirmation/Setting the Fuser Power Supply103
- Displaying Fuser Heater Temperature103
- Initializing the Touch Panel104
- Checking DP Operation105
- Checking the Operation Panel Keys106
- Setting the IC Card Type106
- Checking the Operation of the DP Motors107
- Checking the DP Switches108
- Checking/Clearing the Maintenance Cycle109
- Checking/Clearing the Maintenance Counter110
- Setting the Destination111
- Switching between Double and Single Counts112
- Selecting the Timing for Copy Counting112
- Setting the Paper Interval113
- Setting Service Status Page113
- Setting OEM Purchaser Code113
- Setting the Black Line Cleaning Indication114
- Setting the Size Conversion Factor115
- Specific Paper Feed Location Setting for Printing Function115
- Switching between Duplex/Simplex Copy Mode116
- Setting the Value for Maintenance Due Indication116
- Adjusting Margins of Image Printing117
- Adjusting Margins for Scanning an Original on the Contact Glass118
- Adjusting Margins for Scanning an Original from the DP119
- Adjusting the Leading Edge Registration for Memory Image Printing120
- Adjusting the Scanner Automatically121
- To Manually Enter the Target Value121
- Setting the Target124
- Setting the Offset for the Color Balance126
- Setting the Center Offset for the Exposure127
- Display Description127
- Setting the ID Correction Operation128
- Setting the Color Registration Adjustment130
- Checking the Color Registration Data130
- Setting the JPEG Compression Ratio132
- Adjusting Laser Power Output134
- Setting Color/Black and White Operation Mode135
- Details on the Modes136
- Initializing All Data137
- Initializing Permanent Data138
- Setting User Data 1138
- Setting User Data 2139
- Clearing Data139
- Setting System 1140
- Setting System 2142
- Setting System 3143
- Setting the Remote Switching Mode144
- Setting System 6144
- Setting the Transmission System 1145
- Setting the Auto Redialing Interval145
- Setting the Number of Times of Auto Redialing145
- Setting Communication Control 1146
- Setting the Communication Starting Speed146
- Setting the Reception Speed146
- Setting the Waiting Period to Prevent Echo Problems at the Sender147
- Setting the Waiting Period to Prevent Echo Problems at the Receiver147
- Setting the Frequency of the CED Signal148
- Setting ECM Transmission148
- Setting ECM Reception148
- Setting Communication Control 2148
- Setting Communication Control 3149
- Setting the DIS Signal to 4 Bytes149
- Setting the CNG Detection Times in the Fax/Telephone Auto Select Mode149
- Setting Communication Control 4150
- Enabling/Disabling V.34 Communication150
- Setting the V.34 Symbol Speed (3429 Hz)150
- Setting Communication Control 5151
- Setting the Reference for RTN Signal Output151
- Setting the Number of Times of DIS Signal Reception151
- Setting Communication Time 1152
- Setting the One-Shot Detection Time for Remote Switching152
- Setting the Continuous Detection Time for Remote Switching152
- Setting Communication Time 2153
- Setting the T0 Time-Out Time153
- Setting the T1 Time-Out Time153
- Setting the T2 Time-Out Time154
- Setting the Ta Time-Out Time154
- Setting the Tb1 Time-Out Time154
- Setting the Td Time-Out Time155
- Setting the Tb2 Time-Out Time155
- Setting the Tc Time-Out Time155
- Setting Modem 1156
- Setting the G3 Transmission Cable Equalizer156
- Setting the G3 Reception Cable Equalizer156
- Setting the Modem Detection Level156
- Setting Modem 2157
- Setting the NCU158
- Setting the Connection to PBX/PSTN158
- Setting PSTN Dial Tone Detection158
- Setting the Loop Current Detection before Dialing159
- Setting Busy Tone Detection159
- Setting for a PBX159
- Outputting Lists160
- FAX Function Customize161
- Setting the Software Switches162
- Communication Control Procedure162
- Communication Time Setting163
- Modem Setting163
- NCU Setting163
- Calling Time Setting163
- Checking Copy Counts by Paper Feed Locations164
- Checking/Clearing the Paper Jam Counts165
- Checking/Clearing the Call for Service Counts166
- Checking Counts by Optional Devices167
- Clearing the Print Coverage Data167
- Setting Backup Data Reading/Writing168
- Error Codes169
- Clearing the All Copy Counts and Machine Life Counts (One Time Only)170
- Setting of Deflection for Feeding from DP171
- Data Capture Mode172
- Checking the Developing Unit Number172
- Displaying the Developer History173
- Service Mode174
- Printing the Service Status Page174
- Printing a Status Page for Service Purpose174
- Service Status Page175
- Detail of Service Status Page177
- Executing a Service Mode181
- Description of Service Mode181
- Alignment of the Cassette and MP Tray and Duplex183
- FAX Country Code184
- Setting Access Code to PSTN185
- Setting for PBX185
- FAX Call Setting185
- Setting Altitude Adjustment186
- Setting Main Charger Output186
- Setting Developer Cleaning187
- Setting Main Chager Roller Cleaning187
- Perform a Memory Diagnostic188
- Paper Misfeed Detection189
- Paper Misfeed Indication189
- Paper Misfeed Detection Component190
- Self-Diagnostic Codes197
- Self-Diagnostic Function197
- Image Quality Problems225
- No Image Appears (Entirely White)226
- No Image Appears (Entirely Black)226
- Image Is too Light227
- The Background Is Colored227
- White Streaks Are Printed Vertically227
- Black Streaks Are Printed Vertically228
- Streaks Are Printed Horizontally228
- One Side of the Print Image Is Darker than the Other228
- The Leading Edge of the Image Is Sporadically Misaligned with the Original229
- Image Is Blurred229
- The Leading Edge of the Image Is Consistently Misaligned with the Original229
- Spots Are Printed229
- Paper Is Wrinkled230
- Image Is Off-Set230
- Part of Image Is Missing230
- Fusing Is Loose230
- Image Is out of Focus231
- Image Center Does Not Align with the Original Center231
- Electric Problems232
- Mechanical Problems239
- Send Error Code241
- Scan to SMB Error Codes241
- Scan to FTP Error Codes242
- Scan to E-Mail Error Codes243
- Precautions for Assembly and Disassembly245
- Drum Unit245
- Toner245
- How to Tell a Genuine Kyocera Mita Toner Container246
- Outer Covers247
- Detaching and Refitting the Front Cover247
- Detaching and Refitting the Rear Cover249
- Detaching and Refitting the Inner Tray250
- Detaching and Refitting the Eject Rear Cover252
- Paper Feed Section254
- Detaching and Refitting the Primary Paper Feed Unit254
- Detaching and Refitting the MP Paper Feed Roller and MP Separation Pad255
- Detaching and Refitting the Registration Roller256
- Detaching and Refitting the Registration Cleaner257
- Detaching and Refitting the MP Tray257
- Detaching and Refitting the Developing Unit258
Developing Section258
- Detaching and Refitting the Chager Roller Unit260
- Detaching and Refitting the Drum Unit260
Drum Section260
- Transfer/Separation Section261
- Detaching and Refitting the Intermediate Transfer Unit261
- Detaching and Refitting the Secondary Transfer Roller Unit261
- Detaching and Refitting the Fuser Unit262
Fuser Section262
- Drive Section263
- Detaching and Refitting the Conveying Motor263
- Detaching and Refitting the Drive Unit263
- Detaching and Refitting the Laser Scanner Unit264
Optical Section264
- Detaching and Refitting the Image Scanner Unit265
- Refitting the ISU267
- Detaching and Refitting the LED Unit268
- Detaching and Refitting the Document Processor270
- Detaching and Refitting the DP Paper Feed Roller and DP Separation Pulley271
- Detaching and Refitting the DP Main PWB273
- Pwbs275
- Detaching and Refitting the Main PWB275
- Detaching and Refitting the Engine PWB276
- Detaching and Refitting the Power Source PWB277
- Detaching and Refitting the Operation Panel PWB Main278
- Detaching and Refitting the IH PWB280
- Others281
- Detaching and Refitting the Language Sheet281
- Detaching and Refitting the Conveying Unit282
- Detaching and Refitting the Imaging Fan Motor284
Upgrading the Firmware285
- Emergency-UPDATE286
- DP Main PWB287
- Engine PWB287
Remarks on PWB Replacement287
- Main PWB288
- Cassette Paper Feed Section289
Paper Feed/Conveying Section289
- Cassette Paper Feed Section Block Diagram290
- MP Tray Paper Feed Section291
- MP Tray Paper Feed Section Block Diagram291
- Conveying Section292
- Paper Conveying Section Block Diagram292
- Drum Section Block Diagram294
- Developing Section Block Diagram296
- Image Scanner Section297
- Scanner Unit297
- Image Scanner Unit (ISU)297
- Scanner Unit Block Diagram298
- Laser Scanner Section299
- Laser Scanner Unit (LSU)299
- Laser Scanner Unit Block Diagram300
- Intermediate Transfer Unit Section301
- Inter Mediate Transfer Unit Section301
- Intermediate Transfer Unit Section Block Diagram302
- Secondary Transfer Roller Section303
- Secondary Transfer Roller Section Block Diagram303
- Fuser Section Block Diagram305
Eject/Feedshift Section306
Eject/Feed Shift Section Block Diagram307
Duplex Conveying Section308
- Duplex Conveying Section Block Diagram309
- Original Feed Section310
- Original Feed Section Block Diagram311
- Original Conveying Section312
- Original Conveying Section Block Diagram313
- Original Switchback/Eject Sections314
- Original Switchback/Eject Sections Block Diagram315
Electrical Parts Layout317
- PWB Names Conversion319
- Switches and Sensors320
- Motors322
- Main PWB Silk-Screen Diagram327
- Engine Pwb333
- Dlpc_Mt_Clk335
- Dlpc_Mt_Dir335
- Dlpc_Mt_Rdy335
- Dlpc_Mt_Rem335
- Dlpk_Mt_Clk336
- Dlpk_Mt_Dir336
- Dlpk_Mt_Rdy336
- Dlpk_Mt_Rem336
Power Source PWB346
Ih Pwb349
Operation Panel PWB Main352
- Dp Main Pwb357

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