HP Officejet J4540 - Clean the automatic document feeder

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Clean the automatic document feeder

If the automatic document feeder picks up multiple pages or if it does not pick up plain
paper, you can clean the rollers and separator pad. Lift the automatic document feeder
cover to access the pick assembly inside the automatic document feeder, clean the
rollers or separator pad, and then close the cover.

Chapter 8

116

Maintain and troubleshoot

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If you have lines or dust appearing on scanned documents or faxes, clean the mylar
strip in the ADF.

To clean the rollers or separator pad
1.
Remove all originals from the document feeder tray.
2. Lift the automatic document feeder cover (1).

This provides easy access to the rollers (2) and separator pad (3), as shown below.

1 Automatic document feeder cover

2 Rollers

3 Separator pad

3. Lightly dampen a clean lint-free cloth with distilled water, then squeeze any excess

liquid from the cloth.

4. Use the damp cloth to wipe any residue off the rollers or separator pad.

NOTE: If the residue does not come off using distilled water, try using
isopropyl (rubbing) alcohol.

5. Close the cover of the automatic document feeder.

Clean the device

117

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To clean the plastic strip inside the automatic document feeder
1.
Turn off the device and unplug the power cord.

NOTE: Depending how long the device is unplugged, the date and time might
be erased. You might need to reset the date and time later, when you plug the
power cord back in.

2. Lift the cover of the automatic document feeder until it stops, and then gently pry

the cover to release the catch.

3. Continue lifting the automatic document feeder cover to the vertical position.

Chapter 8

118

Maintain and troubleshoot

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4. Lift the automatic document feeder mechanism.

5. Clean the plastic strip with a soft cloth or sponge slightly moistened with a

nonabrasive glass cleaner.

CAUTION: Do not use abrasives, acetone, benzene, or carbon tetrachloride
on the plastic strip, since they can damage it. Do not place or spray liquid
directly on the plastic strip. The liquid might seep under the glass and damage
the device.

6. Gently lower the automatic document feeder mechanism to avoid dislodging the

plastic strip, and then close the cover of the automatic document feeder.

7. Plug in the power cord, and then turn on the device.

NOTE: If you still see dust or lines on scans after cleaning the plastic strip,
you may need to order a new plastic strip. For more information, see

Support

and warranty

.