Brother International HL-1260 Service Manual - Page 123

Operation of the Components of the High-Voltage Power Supply Assy

Page 123 highlights

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-6 2. PAPER FEED DRIVE CIRCUIT Refer to HL-1260 (P.III-9) 3. DISPLAY CIRCUIT Refer to HL-1260 (P.III-11) 3.1 Outline Refer to HL-1260 (P.III-11) 3.2 Operation Refer to HL-1260 (P.III-11) 4. LOW-VOLTAGE POWER SUPPLY ASSY Refer to HL-1260 (P.III-12) 4.1 Outline Refer to HL-1260 (P.III-12) 4.2 Protection Functions Refer to HL-1260 (P.III-12) 5. HIGH-VOLTAGE POWER SUPPLY ASSY Refer to HL-1260 (P.III-14) 5.1 Outline Refer to HL-1260 (P.III-14) 5.2 Operation of the Components of the High-Voltage Power Supply Assy ...Refer to HL-1260 (P.III-14) CHAPTER IV MECHANICAL SYSTEM PRINTER DISASSEMBLING PROCEDURE Refer to HL-1260 (P.IV-2) 1.1 Configuration Refer to HL-1260 (P.IV-3) 1.2 Toner Cartridge Lid IV-2 1.3 Side Cover L Refer to HL-1260 (P.IV-3) 1.4 Font Cover Assy Refer to HL-1260 (P.IV-4) 1.5 Upper Cover Assy, Rear Cover Assy Refer to HL-1260 (P.IV-4) 1.5.1 Upper cover assy, rear cover assy Refer to HL-1260 (P.IV-4) 1.5.2 Changeover guide, jam remove cover Refer to HL-1260 (P.IV-5) 1.6 Side Cover R Refer to HL-1260 (P.IV-5) 1.7 DC Fan Motor ...IV-2 1.8 Main PCB ...IV-3 1.9 Control Panel Unit Refer to HL-1260 (P.IV-8) 1.10 Scanner Unit ...IV-5 1.11 Cartridge Stopper Assy IV-5 1.12 Paper Feed Chassis Unit Refer to HL-1260 (P.IV-10) 1.13 Separation Pad Assy Refer to HL-1260 (P.IV-11) 1.14 MP PE Sub Actuator Refer to HL-1260 (P.IV-12) 1.15 P Feed /Size-SW PCB Assy Refer to HL-1260 (P.IV-12) 1.16 Size-Switch Spring Refer to HL-1260 (P.IV-12) 1.17 Regist Sensor Actuator Refer to HL-1260 (P.IV-13) 1.18 MP Paper Detection Actuator Refer to HL-1260 (P.IV-13) 1.19 PE Sensor Actuator MP Refer to HL-1260 (P.IV-13) 1.20 Tray Sensor Holder Refer to HL-1260 (P.IV-14) 1.21 Roller Holder Refer to HL-1260 (P.IV-14) 1.22 Paper Pick-up Roller Assy, Bearing Refer to HL-1260 (P.IV-15) 1.23 Paper Pick-up Solenoid Refer to HL-1260 (P.IV-16) 1.24 Paper Feed Motor Assy Refer to HL-1260 (P.IV-16) 1.25 MP Tray Cover Refer to HL-1260 (P.IV-17) 1.26 MP Tray Assy Refer to HL-1260 (P.IV-17) 1.27 Paper Path Separation Plate, Paper Path Separation Film Refer to HL-1260 (P.IV-18) 1.28 Latch Refer to HL-1260 (P.IV-19) 1.29 Fixing Unit (for both 120V and 230V, the only difference is the halogen heater) ...Refer to HL-1260 (P. IV-19) 1.30 Transfer Unit Refer to HL-1260 (P.IV-22) ii

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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
-6
2.
PAPER FEED DRIVE CIRCUIT
.....................................................
Refer to HL-1260 (P.
III
-9)
3.
DISPLAY CIRCUIT
.......................................................................
Refer to HL-1260 (P.
III
-11)
3.1
Outline
................................................................................
Refer to HL-1260 (P.
III
-11)
3.2
Operation
...........................................................................
Refer to HL-1260 (P.
III
-11)
4.
LOW-VOLTAGE POWER SUPPLY ASSY
.....................................
Refer to HL-1260 (P.
III
-12)
4.1
Outline
................................................................................
Refer to HL-1260 (P.
III
-12)
4.2
Protection Functions
..........................................................
Refer to HL-1260 (P.
III
-12)
5.
HIGH-VOLTAGE POWER SUPPLY ASSY
....................................
Refer to HL-1260 (P.
III
-14)
5.1
Outline
................................................................................
Refer to HL-1260 (P.
III
-14)
5.2
Operation of the Components of the High-Voltage Power Supply Assy
........................
...........................................................................................
Refer to HL-1260 (P.
III
-14)
CHAPTER
IV
MECHANICAL SYSTEM
PRINTER DISASSEMBLING PROCEDURE
.............................................
Refer to HL-1260 (P.
IV
-2)
1.1
Configuration
........................................................................
Refer to HL-1260 (P.
IV
-3)
1.2
Toner Cartridge Lid
.................................................................................................
IV
-2
1.3
Side Cover L
........................................................................
Refer to HL-1260 (P.
IV
-3)
1.4
Font Cover Assy
...................................................................
Refer to HL-1260 (P.
IV
-4)
1.5
Upper Cover Assy, Rear Cover Assy
....................................
Refer to HL-1260 (P.
IV
-4)
1.5.1
Upper cover assy, rear cover assy
.........................
Refer to HL-1260 (P.
IV
-4)
1.5.2
Changeover guide, jam remove cover
...................
Refer to HL-1260 (P.
IV
-5)
1.6
Side Cover R
........................................................................
Refer to HL-1260 (P.
IV
-5)
1.7
DC Fan Motor
........................................................................................................
IV
-2
1.8
Main PCB
...............................................................................................................
IV
-3
1.9
Control Panel Unit
................................................................
Refer to HL-1260 (P.
IV
-8)
1.10
Scanner Unit
..........................................................................................................
IV
-5
1.11
Cartridge Stopper Assy
..........................................................................................
IV
-5
1.12
Paper Feed Chassis Unit
...................................................
Refer to HL-1260 (P.
IV
-10)
1.13
Separation Pad Assy
..........................................................
Refer to HL-1260 (P.
IV
-11)
1.14
MP PE Sub Actuator
..........................................................
Refer to HL-1260 (P.
IV
-12)
1.15
P Feed /Size-SW PCB Assy
...............................................
Refer to HL-1260 (P.
IV
-12)
1.16
Size-Switch Spring
.............................................................
Refer to HL-1260 (P.
IV
-12)
1.17
Regist Sensor Actuator
......................................................
Refer to HL-1260 (P.
IV
-13)
1.18
MP Paper Detection Actuator
.............................................
Refer to HL-1260 (P.
IV
-13)
1.19
PE Sensor Actuator MP
.....................................................
Refer to HL-1260 (P.
IV
-13)
1.20
Tray Sensor Holder
............................................................
Refer to HL-1260 (P.
IV
-14)
1.21
Roller Holder
......................................................................
Refer to HL-1260 (P.
IV
-14)
1.22
Paper Pick-up Roller Assy, Bearing
....................................
Refer to HL-1260 (P.
IV
-15)
1.23
Paper Pick-up Solenoid
......................................................
Refer to HL-1260 (P.
IV
-16)
1.24
Paper Feed Motor Assy
......................................................
Refer to HL-1260 (P.
IV
-16)
1.25
MP Tray Cover
...................................................................
Refer to HL-1260 (P.
IV
-17)
1.26
MP Tray Assy
.....................................................................
Refer to HL-1260 (P.
IV
-17)
1.27
Paper Path Separation Plate, Paper Path Separation Film
Refer to HL-1260 (P.
IV
-18)
1.28
Latch
..................................................................................
Refer to HL-1260 (P.
IV
-19)
1.29
Fixing Unit (for both 120V and 230V, the only difference is the halogen heater)
.........
...........................................................................................
Refer to HL-1260 (P.
IV
-19)
1.30
Transfer Unit
......................................................................
Refer to HL-1260 (P.
IV
-22)
ii