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Brother International MFC-9030 Service Manual - Page 64

Setting up the main PCB after replacement

UPC - 012502040019

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Setting up the main PCB after replacement Replaced with a new main PUB? N (Replaced with one used) Y Flash ROM or masked ROM on the new main PUB? Masked ROM Flash ROM Install the update program onto the flash ROM. (For details about the installation procedure, refer to CHAPTER 2.) The "DOWNLOADING" is shown on the LCD. Flash ROM or masked ROM on the new main PUB? Masked ROM Flash ROM Install the update program onto the flash ROM. (For details about the installation procedure, refer to CHAPTER 2.) The "DOWNLOADING" is shown on the LCD. Upon completion of the installation, the facsimile equipment initializes the EEPROM while showing the "PARAMETER INIT." After completion of initialization, the equipment returns to the initial stage of the maintenance mode. Then perform the following: - EEPROM customizing [Function code: 74] - CIS scanner area setting [Function code: 55] (Refer to CHAPTER 5, Subsections 5.3.12 and 5.3.11) The "PLEASE WAIT" appears on the LCD. The calendar clock appears. Make the equipment enter the maintenance mode and then perform the following: - EEPROM customizing [Function code: 74] - EEPROM parameter initialization [Function code: 01] - CIS scanner area setting [Function code: 55] (Refer to CHAPTER 5, Subsections 5.3.12, 5.3.1, and 5.3.11.) Make the equipment exit from the maintenance mode by pressing the 9 key twice. (Refer to CHAPTER 5.) The calendar clock appears. Set an ID code. (Refer to CHAPTER 2.) End 4-29

Section	Page
CHAPTER 1 GENERAL DESCRIPTION	6
1.1 EQUIPMENT OUTLINE	7
1.1.1 External Appearance and Weight	7
1.1.2 Components	7
1.2 SPECIFICATIONS	8
CHAPTER 2 INSTALLATION	17
2.1 INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE	18
2.2 SETTING ID CODES TO FACSIMILE MACHINES	20
CHAPTER 3 THEORY OF OPERATION	22
3.1 OVERVIEW	23
3.2 MECHANISMS	24
3.2.1 Scanner Mechanism	25
3.2.1.1 Document feeding and ejecting mechanism	25
3.2.1.2 Scanner	25
3.2.2 Laser Printing Mechanism	26
3.2.2.1 Paper pulling-in, registration, feeding, and ejecting mechanism	26
3.2.2.2 Print process mechanism	28
3.2.2.3 Heat-fixing mechanism	29
3.2.3 Sensors and Actuators	30
3.3 CONTROL ELECTRONICS	32
3.3.1 Configuration	32
CHAPTER 4 DISASSEMBLY/REASSEMBLY AND LUBRICATION	34
4.1 DISASSEMBLY/REASSEMBLY	36
Safety Precautions	36
Tightening Torque List	37
Preparation	38
How to Access the Object Component	38
4.1.1 Document Guide Base	40
4.1.2 Board Access Cover	40
4.1.3 Auto Sheet Feeder (ASF)	41
4.1.4 Handset Mount and Control Panel ASSY	47
4.1.5 Panel Rear Cover and Control Panel	49
4.1.6 Top Cover	52
4.1.7 CIS Unit	54
4.1.8 Hook Switch PCB	55
4.1.9 Document Feed Roller ASSY, Scanner Drive Unit, and Document Ejection Roller ASSY	56
4.1.10 Separation Roller and its Gear	58
4.1.11 Heat-fixing Unit, FU Lamp, and Paper Ejection Sensor Actuator	60
4.1.12 Laser Unit and Toner Sensor PCB	62
4.1.13 Main PCB	63
4.1.14 Bottom Plate	65
4.1.15 Low-voltage Power Supply PCB	66
4.1.16 High-voltage Power Supply PCB	69
4.1.17 Cover/Registration Sensor PCB, Duct, and Fan	70
4.1.18 Top Cover Sensor Actuator	71
4.1.19 Power Supply Shield	71
4.1.20 Speaker	72
4.1.21 Gear Drive Unit	73
4.1.22 PCB Support and NCU PCB	75
4.1.23 Side Covers R and L	76
4.1.24 Scanner Grounding Plate	77
4.1.25 EL (Eraser Lamp) Board	78
4.1.26 Harness Routing	79
4.1.27 Cleaning of High-voltage Contacts and Grounding Contacts	84
4.2 LUBRICATION	85
CHAPTER 5 MAINTENANCE MODE	89
5.1 ENTRY INTO THE MAINTENANCE MODE	90
5.2 LIST OF MAINTENANCE-MODE FUNCTIONS	91
5.3 DETAILED DESCRIPTION OFMAINTENANCE-MODE FUNCTIONS	93
5.3.1 EEPROM Parameter Initialization	93
5.3.2 Printout of Scanning Compensation Data	94
5.3.3 ADF Performance Test	96
5.3.4 Test Pattern 1	97
5.3.5 Firmware Switch Setting and Printout	98
5.3.6 Operational Check of LCD	101
5.3.7 Operational Check of Control Panel PCB	101
5.3.8 Receiver Volume Adjustment (applicable to the American version only)	103
5.3.9 Sensor Operational Check	104
5.3.10 Fine Adjustment of Scanning Start/End Position	105
5.3.11 CIS Scanner Area Setting	106
5.3.12 EEPROM Customizing	106
5.3.13 Printout of the Equipment's Log Information	107
5.3.14 Equipment Error Code Indication	108
5.3.15 Output of Transmission Log to the Telephone Line	108
5.3.16 Cancellation of the Memory Security Mode (applicable to the European version only)	109
CHAPTER 6 ERROR INDICATION AND TROUBLESHOOTING	111
6.1 ERROR INDICATION	112
6.1.1 Equipment Errors	112
[ 1 ] Error messages on the LCD	112
[ 2 ] Error codes shown in the \	116
6.1.2 Communications Errors	118
6.2 TROUBLESHOOTING	128
6.2.1 Introduction	128
6.2.2 Precautions	128
6.2.3 Checking prior to Troubleshooting	128
6.2.4 Troubleshooting Procedures	130
[ 1 ] Control panel related	130
[ 2 ] Telephone related	130
[ 3 ] Communications related	131
[ 4 ] Paper/document feeding related	131
[ 5 ] Print-image related	132
Location of High-voltage Contacts and Grounding Contacts	139
Appendix 1. EEPROM Customizing Codes	140
Appendix 2. Firmware Switches (WSW)	143