212
Fuser Lamp Drive Circuit
The Fuser Lamp is powered by 100 VAC (200 VAC). It is driven by the LVPS and controlled by the nSSR
signal from the SC PC Board. When the CN103, Pin11 (nSSR) on the LVPS goes LOW, the Fuser Lamp
turns ON. This lights up the PC102 LED and activates the TRC100 photo-triac, and VAC 115 VAC is sent
to the Fuser Lamp. The time at which TRC100 is actually activated depends on the 100 VAC (200 VAC)
sine wave. When the cross-voltage for Pin 6 and Pin 4 of PC102 is other than 0 Volts (sine wave
exceeds 0 volts), PC102 inhibits the activation of the triac and turns ON the Fuser Lamp.
99
CN103
+24V
R127
4
2
1
PC102
nSSR
TRC100
2
1
2
1
C109
C108
R112
R111
R111
2
1
CN102
H
CN102
Fuser Lamp
Fuse
Thermostat
Thermal Fuse
3
SC PCB
6
LVPS
Fuser Lamp Drive Circuit Diagram
L301
L101
Содержание Facsimile UF-590
Страница 14: ...14 4 Driver No TWAIN 5 2 Sided Scanning No Items Description Remarks UF 580 UF 780 UF 590 UF 790 ...
Страница 17: ...17 1 4 Control Panel For USA and Canada UF 790 UF 780 790 780 ...
Страница 18: ...18 For Other Destinations UF 590 UF 580 ...
Страница 27: ...27 10 Remove 2 P6A Bushings 316 11 Remove the Eject Roller 303 10 11 ...
Страница 33: ...33 11 Remove 2 Screws 4N 12 Remove the Paper Feed Rollers 518 11 12 ...
Страница 238: ...238 807 807 808 805 804 802 801 811 810 810 809 803 806 K A C D E F G H I J B 8 1 3 4 5 6 7 2 2 2 Fig 8 Cassette ...
Страница 290: ...290 10 9 CCD PC Board 4 3 2 1 D C B A 1 2 3 4 Drawing Name CCD PC Board 1 1 Model UF 580 590 780 790 5V 5V ...
Страница 293: ...293 10 12 Power Supply Unit 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 1 4 Model UF 580 590 780 790 ...
Страница 294: ...294 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 2 4 Model UF 580 590 780 790 ...
Страница 295: ...295 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 3 4 Model UF 580 590 780 790 ...
Страница 296: ...296 4 3 2 1 D C B A 1 2 3 4 Drawing Name HVPS 4 4 Model UF 580 590 780 790 ...
Страница 297: ...297 4 3 2 1 D C B A 1 2 3 4 Drawing Name LVPS 1 1 Model UF 580 590 780 790 ...
Страница 298: ...DZZSM00158 ...