Xerox 7750DXF - Phaser Color Laser Printer - Page 403

10-79
Rear Fan Control
1
MOT
MCU PWB PL13.1
I/F PWB PL9.1
P/J410
62
2 1 4
+24VDC
DC COM
DC COM
J552
DC330 [004-050]
REAR FAN HIGH
SPEED (L) +24VDC
BRN
RED
BLK
REAR FAN PL8.1
FAN
DC330 [004-200]
REAR FAN
LOCKED (H) +3.3VDC
YEL
J552
EXHAUST AIR
3
I/F PWB PL9.1
P/J410
63
+3.3VDC
MCU PWB PL13.1
9.30 REAR FAN CONTROL
7750-321
Rear Fan starts low-speed rotation at power on and keeps it with M/C on standby. Rear Fan starts high speed rotation at Main Motor On and transits to low-speed rotation 15sec (adjustable in NVM) after Main Motor Off. In Sleep mode, the Fan stops rotation because +24VDC is cut off.
1