Manuals

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Note: Up to 5 downloads only. Make sure to save your copy.

Note: Up to 5 downloads only. Make sure to save your copy.

Note: Up to 5 downloads only. Make sure to save your copy.

Service Manual Table of Contents CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS 1. GENERAL 2. NETWORK CONNECTIVITY 3. SERVICE INFORMATION 4. SUPPLIES 5. MEDIA SPECIFICATIONS 6. FAX (ONLY FOR THE MODELS WITH FAX FUNCTION) 7. COPY 8. SCANNER CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING 1. INTRODUCTION 1.1 Precautions 1.2 Checks before Commencing Troubleshooting 2. OVERVIEW 2.1 Cross-section Drawing 2.1.1 Printer part 2.1.2 Scanner part 2.2 Paper Feeding 2.2.1 Printer part 2.2.2 Scanner part 2.3 Operation of Each Part and Location of Parts 2.4 Block Diagram 2.5 Main Components 3. ERROR INDICATIONS 3.1 Error Codes 3.2 Error Message 3.3 Communication Errors 4. TROUBLESHOOTING 4.1 Error Cause and Remedy 4.2 Troubleshooting for Paper Feeding Problems 4.2.1 No paper feeding from T1 4.2.2 No paper feeding from the LT 4.2.3 No paper feeding from the TT 4.2.4 No paper feeding from MP tray 4.2.5 Multiple sheets of paper are fed 4.2.6 Paper becomes wrinkled 4.2.7 Paper is fed at an angle 4.2.8 Paper curls 4.2.9 Unable to perform 2-sided printing 4.2.10 Paper jam 4.3 Troubleshooting for Image Defects 4.3.1 Image defect examples 4.3.2 Troubleshooting image defect 4.4 Troubleshooting for Software Problems 4.4.1 Unable to receive data 4.5 Troubleshooting for Network Problems 4.5.1 Cannot make a print through network connection 4.5.2 Cannot connect to access point 4.6 Troubleshooting for Control Panel Problems 4.6.1 Nothing is displayed on the LCD 4.6.2 Nothing is displayed on the LED 4.6.3 Unable to perform panel operation 4.7 Troubleshooting for Toner Cartridge and Drum Unit Problems 4.7.1 New toner not detected 4.7.2 Toner cartridge not detected 4.7.3 Toner replacement message displayed on LCD is not cleared 4.7.4 Drum error 4.7.5 Drum replacement message displayed on LCD is not cleared 4.8 Troubleshooting for Fuser Unit Problems 4.8.1 Fuser unit failure 4.9 Troubleshooting for Laser Unit Problems 4.9.1 Laser unit failure 4.10 Troubleshooting for PCB Problems 4.10.1 Main PCB failure 4.10.2 Full memory 4.11 Troubleshooting for Document Feeding Problems 4.11.1 No document is fed 4.11.2 Multiple documents are fed 4.11.3 Document jam 4.11.4 Document becomes wrinkled 4.11.5 Document size is not detected correctly 4.12 Troubleshooting for Image Defects 4.12.1 Defect examples 4.12.2 Troubleshooting according to image defect 4.13 Troubleshooting for Fax Problems 4.13.1 Fax cannot be sent 4.13.2 Fax cannot be received 4.13.3 Communication error occurs 4.13.4 Receive buffer full during receiving into memory 4.14 Troubleshooting for Other Problems 4.14.1 Cannot make print 4.14.2 Problem of USB direct interface 4.14.3 Cannot update firmware 4.14.4 “Paper Low” message does not disappear CHAPTER 3 DISASSEMBLY AND ASSEMBLY 1. SAFETY PRECAUTIONS 2. PACKING 3. SCREW CATALOGUE 4. SCREW TORQUE LIST 5. LUBRICATION 6. OVERVIEW OF GEARS 7. HARNESS ROUTING 8. DISASSEMBLY FLOW 8.1 Machine 8.2 LT 8.3 TT 9. DISASSEMBLY PROCEDURE 9.1 Preparation 9.2 Paper tray (PF kit 1) 9.3 Back cover / Back cover stopper arm L/R 9.4 Fuser cover ASSY 9.5 Cleaner pinch roller S ASSY 9.6 Fuser unit 9.7 Cord hook 9.8 Side cover L ASSY 9.9 Side cover R 9.10 MP cover ASSY / MP paper guide ASSY 9.11 MP link L / MP link R 9.12 Front cover 9.13 Paper stopper 9.14 Back cover upper 9.15 Panel unit 9.15.1 Panel unit 9.15.2 NFC PCB (Models with NFC only) 9.15.3 Ten key PCB / Mode key PCB 9.15.4 Panel PCB / LCD 9.15.5 Touch panel ASSY 9.16 ADF unit / Hinge L ASSY / Hinge R / Hinge R support / Hinge arm R / Document scanner unit 9.17 ADF cover ASSY 9.18 Gear cover / ADF front cover / Document sub tray 9.19 Document separate roller ASSY 9.20 ADF separation holder ASSY 9.21 Second side CIS unit / Second side CIS flat cable / CIS sponge / LF1 roller ASSY / LF2 roller ASSY (Models with duplex printing only) 9.22 First side CIS unit / First side CIS flat cable 9.23 Joint cover ASSY 9.24 Modem PCB ASSY / Modem flat cable (Models with FAX only) 9.25 USB host PCB / USB cover 9.26 Main PCB ASSY / Wireless LAN PCB 9.27 Fuser fan 9.28 Power fan 9.29 High-voltage power supply PCB ASSY 9.30 Laser unit flat cable / Laser unit / High-voltage power supply flat cable 9.31 Front cover sensor 9.32 Process drive unit / Fuser drive gear Z25 9.33 Internal temperature sensor 9.34 Paper feed drive unit 9.35 Develop release drive unit 9.36 Develop release sensor PCB 9.37 Toner/new sensor PCB ASSY 9.38 Paper eject ASSY 9.39 Toner filter ASSY 9.40 Paper eject origin sensor 9.41 Back cover sensor ASSY 9.42 Eject sensor PCB ASSY 9.43 Registration mark sensor unit 9.44 Low-voltage power supply PCB ASSY 9.45 MP paper empty/registration front sensor PCB ASSY 9.46 Paper feed unit / Joint pin 9.47 Registration front/rear sensor PCB ASSY 9.48 T1 paper feed sensor PCB ASSY 9.49 Blower 10. DISASSEMBLY PROCEDURE (LT-330CL) 10.1 LT paper tray / Separation pad ASSY 10.2 LT roller holder ASSY 10.3 LT control PCB ASSY 10.4 LT paper feed unit 10.5 LT paper empty/paper feed sensor PCB ASSY 11. DISASSEMBLY PROCEDURE (LT-340CL) 11.1 LT paper tray / Separation pad ASSY 11.2 Separation roller ASSY 11.3 LT cover rear 11.4 LT control PCB ASSY 11.5 LT paper feed frame unit 11.6 LT paper empty/plate origin sensor PCB ASSY 12. DISASSEMBLY PROCEDURE (TT UNIT) 12.1 Preparation 12.2 TT paper tray 12.3 TT roller holder ASSY 12.4 Covers 12.5 TT control PCB ASSY 12.6 TT balance sensor L / TT balance sensor R 12.7 Fan motor 12.8 TT motor 12.9 T2TT unit 12.10 T3TT unit 12.11 Low-voltage power supply PCB ASSY 12.12 T4TT unit 12.13 T5TT unit 12.14 LT/TT connector ASSY (T2TT only) 12.15 TT relay PCB ASSY (Common to all TT) 12.16 TT pickup clutch (Common to all TT) 12.17 TT release clutch (Common to all TT) 12.18 TT jam sensor PCB ASSY (Common to all TT) 12.19 TT paper feed sensor PCB ASSY (Common to all TT) 12.20 TT paper empty sensor PCB ASSY (Common to all TT) 12.21 Adjuster CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT 1. IF YOU REPLACE THE MAIN