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<Cleaning procedure>
1) Take the photosensitive drum from the process unit. (For instructions, see the Service Manual.)
2) Pour 0.2 to 03 g of drum cleaning powder (CK-0429) on lint-free paper, and moisten the lint-free
paper with 5 to 10 cc of alcohol.
3) While forcing the lint-free paper against the surface of the photosensitive drum, move it back and
forth in the drum axial direction as if to wipe its surface. (At this time, keep the width of the
strokes to 5 to 10 cm in the peripheral direction of the drum, and move back and forth the lint-fee
paper about 15 to 20 times.)
4) When the alcohol has evaporated, dry wipe the surface of the photosensitive drum with new lint-
free paper.
If the surface is still uneven, go back to step 3). (Increase the strokes as necessary.)
5) Rotate the drum over (5 to 10 cm), and repeat steps 2) to 4). Repeat until the entire surface of the
drum has been covered.
<Notes for servicing>
• Adhered foreign matters cannot be removed just with solvent (alcohol); always be sure to use
cleaning powder (CK-0429).
• Clean the photosensitive drum before replacing the cleaning blade.
• Evenly wipe from the front side end of the photosensitive drum to the rear side end.
• When performing Step 3, if there is too much drum cleaning powder or much of the alcohol has
evaporated, add more alcohol to the lint free paper. If it seems there is not enough drum-cleaning
powder, add to the lint free paper as required.
• After dry wiping the drum, be sure to check that no drum cleaning powder remains on the drum.
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