Paper Size Switch Assembly - Xerox Phaser 6250 Service Manual

Troubleshooting Procedure Table (Continued)
Steps Action and Questions
3 Turn off the printers power for a full 5
minutes then re-run the engine only test
print.
Does the Test Print run successfully?
4
Check print engine operation.
Troubleshoot a defective engine, then
troubleshoot the LVPS, Motor Driver
board, or a motor / clutch connected to
the engine.
Refer to the Wiring Diagrams, while
unplugging the various motors, clutches,
and solenoids until the fan stays running
and the LVPS maintains its outputs.
Is the LVPS outputs restored?

Paper Size Switch Assembly

Paper size and tray installation is detected by a combination of ON/OFF statuses of
the upper, middle, and lower switches of the Switch Paper Size Assembly. Inability of
the printer to detect the paper size loaded, or to detect the presence of the paper tray
can be the result of a bad switch.
Paper size
LEGAL14"
LEGAL13"
EXECUTIVE
B5
A4
A5 (for reference only, supported in Tray 1 only)
LETTER
No Tray
General Troubleshooting
Yes
Complete.
Replace the
component isolated
during testing.
Switches
Upper Middle
ON ON
ON ON
ON OFF
ON OFF
OFF ON
OFF ON
OFF OFF
OFF OFF
No
Go to Step 4.
See "Fault
Isolation" on
page 4-9.
Lower
ON
OFF
ON
OFF
ON
OFF
ON
OFF
4-11