Brother 1660E Service Manual page 5

CHAPTER III ELECTRICAL SYSTEM
1. MAIN PCB ........................................................................................................................ III-1
1.1 Outline .................................................................................................................... III-1
1.2 Video Controller Circuit ........................................................................................... III-2
1.3 Engine Controller Circuit ......................................................................................... III-7
2. PAPER FEED DRIVE CIRCUIT ........................................................................................ III-9
3. DISPLAY CIRCUIT ..........................................................................................................III-11
3.1 Outline ................................................................................................................... III-11
3.2 Operation ...............................................................................................................III-11
4. LOW-VOLTAGE POWER SUPPLY ASSY ......................................................................... III-12
4.1 Outline ................................................................................................................... III-12
4.2 Protection Functions .............................................................................................. III-12
5. HIGH-VOLTAGE POWER SUPPLY ASSY .......................................................................III-14
5.1 Outline ................................................................................................................... III-14
5.2 Operation of the Components of the High-Voltage Power Supply Assy ..................III-14
CHAPTER IV MECHANICAL SYSTEM
PRINTER DISASSEMBLING PROCEDURE
PRINTER BODY
1.1 Configuration ........................................................................................................... IV-3
1.2 Toner Cartridge Lid .................................................................................................. IV-3
1.3 Side Cover L ........................................................................................................... IV-3
1.4 Font Cover Assy ..................................................................................................... IV-4
1.5 Upper Cover Assy, Rear Cover Assy ...................................................................... IV-4
1.5.1 Upper cover assy, rear cover assy ........................................................... IV-4
1.5.2 Changeover guide, jam remove cover ....................................................... IV-5
1.6 Side Cover R .......................................................................................................... IV-5
1.7 DC Fan Motor ......................................................................................................... IV-6
1.8 Main PCB ............................................................................................................... IV-6
1.9 Control Panel Unit ................................................................................................... IV-8
1.10 Scanner Unit ........................................................................................................... IV-9
1.11 Cartridge Stopper Assy .......................................................................................... IV-9
1.12 Paper Feed Chassis Unit .......................................................................................IV-10
1.13 Separation Pad Assy ............................................................................................. IV-11
1.14 MP PE Sub Actuator .............................................................................................IV-12
1.15 P Feed /Size-SW PCB Assy .................................................................................IV-12
1.16 Side-Switch Spring ................................................................................................IV-12
1.17 Regist Sensor Actuator ..........................................................................................IV-13
1.18 MP Paper Detection Actuator ................................................................................. IV-13
1.19 PE Sensor Actuator MP ........................................................................................IV-13
1.20 Tray Sensor Holder ................................................................................................IV-14
1.21 Roller Holder ..........................................................................................................IV-14
1.22 Paper Pick-up Roller Assy, Bearing........................................................................IV-15
1.23 Paper Pick-up Solenoid .......................................................................................... IV-16
1.24 Paper Feed Motor Assy .........................................................................................IV-16
1.25 MP Tray Cover ....................................................................................................... IV-17
1.26 MP Tray Assy ........................................................................................................IV-17
1.27 Paper Path Separation Plate, Paper Path Separation Film ......................................IV-18
1.28 Latch .....................................................................................................................IV-19
1.29 Fixing Unit (for both 120V and 230V, the only difference is the halogen heater) ....IV-19
1.30 Transfer Unit ..........................................................................................................IV-22
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