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Confidential
6.1.4 CIS Scanner Area Setting ....................................................................................6-2
6.1.5 Setting Which Allows the User to Select the Country...........................................6-2
6.2
IF YOU REPLACE THE ENGINE CONTROL BOARD PU.......................................6-4
6.3
ADJUSTMENT OF THE GUIDE B POSITION OF TOP FUSE COVER FU .............6-5
6.4
PERIODIC MAINTENANCE PROCEDURES............................................................6-6
6.4.1 Replacement of OPC Belt Cartridge ....................................................................6-6
6.4.2 Replacement of Fusing Unit...............................................................................6-10
6.4.3 Replacement of Transfer Roller ASSY PU (120K KIT) ......................................6-13
6.4.4 Replacement of Cleaning Roller PU (120K KIT) ................................................6-15
6.4.5 Replacement of Paper Feed Roller and Separator Pad (120K KIT) ..................6-17
6.4.6 Replacement of Transfer Unit PU (120K KIT)....................................................6-23
6.5
IF YOU REPLACE THE OPC BELT CARTRIDGE .................................................6-25
6.6
IF YOU REPLACE THE FUSING UNIT...................................................................6-26
CHAPTER 7 CLEANING
CHAPTER 8 MAINTENANCE MODE
8.1
MAINTENANCE MODE FOR THE MACHINE ..........................................................8-1
8.1.1 Entry into the Maintenance Mode.........................................................................8-1
8.1.2 List of Maintenance Mode Functions....................................................................8-2
8.1.3 User-access to the Maintenance Mode................................................................8-3
8.1.4 Detailed Descriptions of Maintenance Mode Functions .......................................8-4
8.1.4.1 EEPROM Parameter Initialization (Function mode 01/91)...........................8-4
8.1.4.2 Printout of Scanning Compensation Data (Function mode 05)....................8-5
8.1.4.3 Placement of CIS Unit in Position for Transportation (Function mode 06) ..8-7
8.1.4.4 ADF Performance Test (Function mode 08)................................................8-7
8.1.4.5 Test Pattern 1 (Function mode 09) ..............................................................8-8
8.1.4.6 Firmware Switch Setting and Printout ..........................................................8-9
[1] Firmware switch setting (Function mode 10) ...................................................8-9
[2] Printout of firmware switch data (Function mode 11).....................................8-11
8.1.4.7 Operation Check of LCD (Function mode 12) ...........................................8-12
8.1.4.8 Operational Check of Control Panel PCB (Function mode 13)..................8-13
Summary of Contents for MFC-9420CN
Page 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC 9420CN ...
Page 16: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 22: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 33: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 48: ...Confidential 3 1 4 CBV DBV Fig 3 16 Y M C K Fig 3 17 ...
Page 69: ...Confidential 3 3 5 Fig 3 35 ...
Page 73: ...Confidential 3 3 9 3 Interface Circuit Printer side Fig 3 38 ...
Page 82: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 85: ...Confidential 4 2 Cover page sample End page sample Fig 4 1 ...
Page 86: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 94: ...Confidential 5 5 5 1 1 AC Cord 1 Disconnect AC cord from the machine Fig 5 1 AC cord Machine ...
Page 175: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 203: ...Confidential CHAPTER 7 CLEANING ...
Page 205: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 213: ...8 6 Confidential Fig 8 2 Scanning Compensation Data List a b c d e f g h i j k l m n q ...
Page 224: ...8 17 Confidential Cover page sample End page sample Fig 8 8 ...
Page 255: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 279: ...Confidential 9 23 2 Image failure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Page 280: ...Confidential 9 24 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 9 1 ...
Page 325: ...App 1 5 Confidential 6 Transfer Unit X X X X X X 7 1 2 3 Location SERIAL NO YEAR MONTH DATE ...
Page 398: ...B Power Supply PCB 100V 127V Confidential ...