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Brother International MFC 9060 Service Manual - Page 24

Paper feeding and ejecting mechanism, If the main motor rotates clockwise

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Paper pulling-in and registration mechanism The paper pulling-in and registration mechanism consists of the pull-in roller gear (incorporated in the multi-purpose sheet feeder), planetary gear system, paper feed solenoid, solenoid lever, clutch release lever, and registration sensor. (For the details about the sensor, refer to Section 2.3.) If the main motor rotates clockwise, the rotation is transmitted to the intermediate gear of the planetary gear system. As the intermediate gear rotates, the pull-in roller drive gear also rotates since the clutch gear is locked by the solenoid lever and the clutch release lever. Accordingly, the pull-in roller in the multi-purpose sheet feeder rotates to pull in paper into the equipment, a sheet at a time. If the paper feed solenoid is retracted and the clutch release lever is operated according to the cam profile of the pull-in roller gear so as to release the clutch gear, the clutch gear rotates and the pullin roller drive gear does not rotate. In this way, the clutch gear switches the transmission of the motor rotation to the pull-in roller drive gear on and off. The solenoid on/off timing and the clutch release lever timing allow this mechanism to pull in a sheet and register it against the registration roller. Paper feeding and ejecting mechanism If the main motor rotates clockwise, the rotation is transmitted via the gear train to the drum drive gear, heater roller drive gear, and paper ejection roller drive gear. After the paper passes through the heat-fixing process, it will be ejected onto the paper tray. If the leading edge of the paper pushes up the actuator of the paper ejection sensor, the photosensor becomes opened, signaling the start of paper ejection. If the trailing edge has passed through the sensor actuator, the sensor becomes closed, signaling the completion of paper ejection. Then, the main motor stops rotation. III - 5

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

Match case Limit results 1 per page

III

- 5

Paper pulling-in and registration mechanism

The paper pulling-in and registration mechanism consists of the pull-in roller gear (incorporated in

the multi-purpose sheet feeder), planetary gear system, paper feed solenoid, solenoid lever, clutch

release lever, and registration sensor.

(For the details about the sensor, refer to Section 2.3.)

If the main motor rotates clockwise, the rotation is transmitted to the intermediate gear of the

planetary gear system.

As the intermediate gear rotates, the pull-in roller drive gear also rotates

since the clutch gear is locked by the solenoid lever and the clutch release lever.

Accordingly, the

pull-in roller in the multi-purpose sheet feeder rotates to pull in paper into the equipment, a sheet at

a time.

If the paper feed solenoid is retracted and the clutch release lever is operated according to the cam

profile of the pull-in roller gear so as to release the clutch gear, the clutch gear rotates and the pull-

in roller drive gear does not rotate.

In this way, the clutch gear switches the transmission of the

motor rotation to the pull-in roller drive gear on and off.

The solenoid on/off timing and the clutch release lever timing allow this mechanism to pull in a

sheet and register it against the registration roller.

Paper feeding and ejecting mechanism

If the main motor rotates clockwise, the rotation is transmitted via the gear train to the drum drive

gear, heater roller drive gear, and paper ejection roller drive gear.

After the paper passes through the heat-fixing process, it will be ejected onto the paper tray.

If the leading edge of the paper pushes up the actuator of the paper ejection sensor, the

photosensor becomes opened, signaling the start of paper ejection.

If the trailing edge has passed

through the sensor actuator, the sensor becomes closed, signaling the completion of paper

ejection.

Then, the main motor stops rotation.