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Brother International MFC 9060 Service Manual - Page 46

Open the top cover., Disconnect the scanner motor harness from the scanner motor ASSY without

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(2) Open the top cover. (3) Disconnect the scanner motor harness from the scanner motor ASSY without removing the shield film. IV - 14

Section	Page
CHAPTER I. GENERAL DESCRIPTION	6
1. EQUIPMENT OUTLINE	7
1.1 External Appearance and Weight	7
1.2 Components	7
2. SPECIFICATIONS	8
CHAPTER II. INSTALLATION	15
1. INSTALLING THE UPDATE DATA TO THE FACSIMILE EQUIPMENT	16
CHAPTER III. THEORY OF OPERATION	19
1. OVERVIEW	20
2. MECHANISMS	21
2.1 Scanner Mechanism	22
2.1.1 Document feeding and ejecting mechanism	22
2.1.2 Scanner	22
2.2 Laser Printing Mechanism	23
2.2.1 Paper pulling-in, registration, feeding, and ejecting mechanism	23
2.2.2 Print process mechanism	25
2.2.3 Heat-fixing mechanism	26
2.3 Sensors and Actuators	27
3. CONTROL ELECTRONICS	29
3.1 Configuration	29
CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION	31
1. DISASSEMBLY/REASSEMBLY	33
Safety Precautions	33
Tightening Torque List	34
Preparation	35
How to Access the Object Component	35
Disassembly Order Flow	36
1.1 ROM Cover and Option Cover	37
1.2 Multi-purpose Sheet Feeder	38
1.3 Document Guide Base	39
1.4 Control Panel ASSY	40
1.5 Panel Rear Cover and Control Panel	41
1.6 Document Feed Roller ASSY and Document Ejection Roller ASSY	44
1.7 Scanner Frame ASSY	45
1.8 Top Cover	52
1.9 Handset Mount and Hook Switch PCB (for models except FAX8060P/MFC9060) Side Cover (for FAX8060P/MFC9060)	55
1.10 Heat-fixing Unit, FU Lamp, and Paper Ejection Sensor Actuator	57
1.11 Laser Unit and Toner Sensor PCB	59
1.12 Bottom Plate	60
1.13 Low-voltage Power Supply PCB	62
1.14 Main PCB	63
1.15 High-voltage Power Supply PCB	66
1.16 Fan	67
1.17 Registration Sensor Actuator and Top Cover Sensor Actuator	68
1.18 Speaker	68
1.19 Gear Drive Unit	69
1.20 NCU PCB	71
1.21 Scanner Grounding Plate	73
1.22 EL (Eraser Lamp) Board	74
1.23 Cleaning of High-voltage Contacts and Grounding Contacts	75
2. LUBRICATION	76
[ 1 ] Document feed roller ASSY and document ejection roller ASSY	76
[ 2 ] Control panel locks	77
[ 3 ] Scanner frame ASSY and separation roller gear	77
[ 4 ] Top cover lock spring	78
[ 5 ] Gear drive unit	78
CHAPTER V. MAINTENANCE MODE	80
1. ENTRY INTO THE MAINTENANCE MODE	81
2. LIST OF MAINTENANCE-MODE FUNCTIONS	82
3. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS	84
3.1 EEPROM Parameter Initialization	84
3.2 Printout of Scanning Compensation Data	85
3.3 ADF Performance Test	87
3.4 Test Pattern 1	88
3.5 Firmware Switch Setting and Printout	89
[ A ] Firmware switch setting	89
[ B ] Printout of firmware switch data	131
3.6 Operational Check of LCD	132
3.7 Operational Check of Control Panel PCB	132
3.8 Sensor Operational Check	134
3.9 EEPROM Customizing	135
3.10 Equipment Error Code Indication	135
3.11 Output of Transmission Log to the Telephone Line	136
3.12 Cancellation of the Memory Security Mode	136
3.13 Receiver Volume Adjustment (applicable to the American version only)	137
CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING	139
1. ERROR INDICATION	140
1.1 Equipment Errors	140
[ 1 ] Error messages on the LCD	140
[ 2 ] Error codes shown in the \	143
1.2 Communications Errors	145
2. TROUBLESHOOTING	152
2.1 Introduction	152
2.2 Precautions	152
2.3 Checking prior to Troubleshooting	152
2.4 Troubleshooting Procedures	153
[ 1 ] Control panel related	153
[ 2 ] Telephone related	153
[ 3 ] Communications related	154
[ 4 ] Paper/document feeding related	154
[ 5 ] Print-image related	155
Appendix 1. EEPROM Customizing Codes	161