OKIDATA OL400e Series, Service Manual

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Page: 179
Service Manual for OL400e/OL410e/OL410e-PS
Chapter 4 Failure & Repair Analysis
4.4.08 Dirty LED
NOTE:
The information in this section is also covered in TSB 5616.
Refer to Section 3 of this Service Handbook for more cleaning information.
Symptoms
Light print
"Splotchy" print
Fuzzy print
White "spots" where there should be black
Solutions
Clean the LED every time the toner cartridge is changed.
Use the LED lens cleaner pad included with the new toner cartridge.
A lens cleaner pad may not always be available. The LED may be cleaned by
following the procedure listed below.
- Locate a soft cotton swab.
- Locate isopropyl alcohol (90%). Follow all direction and cautions for
use on the container.
- Apply a small amount of alcohol to the cotton swab.
- Gently move the swab across the face of the LED lens.
Use a clean section of the swab on each pass.
Move the swab in one direction.
Lift the swab from the lens surface between each pass.
- Apply ONLY enough pressure to remove loose toner. DO NOT scrub or
scratch the LED.
- DO NOT allow alcohol to spill or drip inside the printer, on any components,
or onto the image drum.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
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