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