Xerox Phaser 6200B, Service Manual

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86 Phaser 6200 Color Laser Printer - Service Manual
Power Supply
Low-voltage Power Supply Overcurrent Protection Circuit
This circuit stops all outputs if the 24 VDC, 5 VDC or 3.3 VDC power supply is
shorted. The circuit is reset when the short is removed, the power is turned off and
then on again.
Low-voltage Power Supply Overvoltage Protection Circuit
This circuit stops all outputs if the 24 VDC, 5 VDC or 3.3 VDC power supply
exceeds the specified voltage. The operating point is 32 VDC or more for 24 VDC,
7 VDC or more for 5 VDC, or 6 VDC or more for 3.3 VDC.
Fan Output Circuit
For the Fan Rear ON (H) signal, the output voltage varies depending on the status of
FAN LOW signal and FAN STOP signal.
+24 VDC Output Stopped By Interlock Switch
Opening Door A, B or C deactivates the front cover interlock switch. This shuts off
the +24 VDC supplied by the Motor Driver Board to the motors, clutches and
solenoids.
Outline of Paper Size Switch Assembly
Paper size and tray installation is determined by a combination of ON/OFF statuses
of the upper, middle, and lower switches of the Switch Paper Size Assembly.
Paper size Switches
Upper
Middle Lower
LEGAL14" ON ON ON
LEGAL13" ON ON OFF
EXECUTIVE ON OFF ON
B5 ON OFF OFF
A4 OFF ON ON
LETTER OFF OFF ON
A5 (for reference only, supported in the MPT only) OFF ON ON
No Tray OFF OFF OFF