Xerox WorkCentre XK50cx, Service Manual

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5-5
Troubleshooting
PROBLEM ITEMS TO BE CHECKED HOW TO SOLVE
Can’t Print
• Check the printer cable installed.
• Check what printer driver is installed.
• Check harness contact.
• Check the IEEE1284 signal level.
• Check correct installation, and use standard
IEEE1284 cable.
• Remove the driver.
• Reboot after reinstallation of the print driver.
• Check CN1,CN2,CN3 contact in Main
PBA,CN10,CN13,CN16 contact in Driver PBA
whether each connection is tight.
• If any signal level is defective, replace Driver
PBA.
- U15-47~50 in Main PBA = 0.8V to 2.4V TTL
signal.
• Otherwise, replace Main PBA.
• Check the cartridge empty status. • If there is no cartridge installed, install a
cartridge properly.
• Make sure that you have installed an authorized
cartridge.
5-2-4 Print Error
PROBLEM ITEMS TO BE CHECKED HOW TO SOLVE
ASF feeds paper
but paper is not
supplied to the
engine.
ASF cannot feed
paper.
Tilted printing
• Check if actuator feed operates
perfectly.
• Check if paper sensor is normal.
• Check if too much paper has been
supplied.
• Check if pickup roller rubber of the ASF is
worn out.
• Check if paper guide of the ASF is
adjusted to the size of paper.
• Replace actuator-feed, spring, or other defective
parts.
• Replace the paper sensor.
• Supply appropriate amount of paper(100 sheets
of normal copying paper).
• Replace pickup roller rubber.
• Adjust paper guide to the size of paper.
5-2-5 Paper Feed
* ASF: Automatic Sheet Feeder