Epson LQ-2550 Technical Manual page 234

Location
ZD 1
Transistor
Q1
Resistor
R9
R 19,R22
I Photo Coupler lTLp621
Pc 1
TY1
Location
ZD 1
Transistor
Resistor
R2 1,R25
Pc 1
Photo Coupler
TY 1
Table 5-9. ROPS Board Main Parts List
Classification
2SC3446
2SC2655-TPE6
L5431 -AA
ERQ-1CUJ201
ERQ-12HUJ2R0
Table 5-10. ROPSE Board Main Parts List
Classification
2SC3456
2SC2655-TPE6
2SK872
L543 1 -AA
ERQ-12HUJ2R0
T L P 7 3 2 L F 2
Name
2.2 - 2.6V 50mA 250mW
500V 3A 40W
50V 2A 900mW
50V 150mA 400mW
450V 12A
Refer to Table A-1.
10 ohms 5W 135°C
200 ohms
20 ohms IW & 5%
2 ohms l/2W & 5%
55V 50mA 150mW
400V 10A
Name
2 . 2 - 2.6V 50mA 250mW
800V 1.5A
50V 2A 900mW
50V 150mA 400mW
900V 6A
Refer to Table A-1.
10 ohms 5W 135°C
100 ohms 2W &
o h m s
20
2 o h m s
55V 50mA 150mW
400V 10A
5-22
Description
Description
l / 2 W * 57.