HP LASERJET 9000MFC - Manual (Page 80)

7 Maintenance 80
Product cleaning
If you are still experiencing a decrease in copy quality, you might
need to clean the inside of the top ADF glass strip.
CAUTION Clean this area only if you are experiencing copy defects
such as streaks, and there is noticeable dust
inside the
glass strip. Cleaning this area frequently could introduce
dust into
the product.
1 Open the ADF cover.
2 Locate the latch that releases the back of the top ADF glass
strip. Push the latch to the left, and pull down to expose the
inside of the glass strip.
3 Gently wipe the glass with a dry, lint-free cloth.
CAUTION Use dry cloth only in this area. Do not use solvents,
cleaners, water, or compressed air. Doing so could severely
damage the product.
4 Pull up on the latch to return the glass strip to its normal
position.
5 Close the ADF cover.
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