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CHAPTER III
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
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
1.5.2
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)
ELECTRICAL SYSTEM
MECHANICAL SYSTEM
Upper cover assy, rear cover assy ......................... Refer to HL-1260 (P.IV-4)
Changeover guide, jam remove cover ................... Refer to HL-1260 (P.IV-5)
ii
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