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The media skews passing through the paper path
1.
Make sure that the media is properly installed in the tray.
2.
Does the pick-up roller pick up evenly? Is it clean? Clean it with a clean,
dry, lint-free cloth if debris is visible.
3.
Is the paper tray damaged or obstructed?
4.
Are the tray's side paper guides snugly adjusted against the stack of media?
The guides should be neither too loose nor too tight.
5.
The problem occur when printing from a different tray?
6.
Is there an obstacle blocking the paper path?
7.
Is the media excessively curled?
8.
Is the customer using an appropriate type of media – a type the printer can
handle?
9.
Ensure the corners or the paper are under the tabs in the corners of the tray.
10.
Replace the paper pick rollers.
The paper tray indicates it is empty when it is not
The procedure for troubleshooting this problem applies to the lower tray
assembly as well.
1.
Does the paper empty flag properly interrupt the paper empty sensor?
Remove the paper tray and actuate the paper-empty flag located to the left
of the pick rollers.
2.
Test the sensor using the service tests described in "Switch scan test" on
page 63.
3.
Does the tray lift motor raise the loaded paper up to the sensor flag when
the tray is installed? Remove most of the paper from the tray, reinsert the
tray in the printer and then observe the tray paper level indicator on the
front of the tray. The indicator should move from a level full indication
(tray lift in lowest position) to a near-empty indication (tray lift in a higher
position).
Ensure the tray lift mechanism in the tray moves freely. If you do not hear
the tray lift motor operate, test the motor with the motor test in "Motor and
clutch tests" on page 69. Replace the tray lift motor, if necessary. If the
motor runs but the paper is not raised, replace the main feeder assembly.
4.
Replace the engine controller board.
Service Guide
39
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Table of Contents
Troubleshooting
