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Service Guide ML520/521
Chapter 4 Failure & Repair Analysis
RAP 04 Paper Jam During Paper Loading
START
Check paper path release lever for proper position. Make sure the paper path is clear.
Which of the following paper jams have occurred?
1. Paper bent at top left corner.
Check the support protector to see if it covers the left side of the paper properly.
Go to A.
2. Paper has torn ends.
Check the ribbon protector.
Check the pull up roller cover to see that it is closed properly.
Go to A.
3. Paper squeezed from either end.
Check around the pressure roller mechanism.
Check the front pressure springs to see that they are mounted properly. There are three springs in the
Microline 520 and five springs in the Microline 521.
Check the tension of all the front pressure rollers to see if they are the same. Top springs: 250 g. Rear
Springs: 90 g.
Make sure that the front release gear arm and the gear of the front release gear shaft are in the proper
position.
Go to A.
A
Has the problem been resolved?
Yes End of procedure.
No Check that the head gap is set properly.
Has the problem been resolved?
Yes End of procedure.
No Contact Technical Support.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
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