Chapter III Electrical System

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)

CHAPTER IV

MECHANICAL SYSTEM