1. Remove the cleaning unit and cleaning blade. (See Cleaning Blade Removal.) 2. Remove the used toner. 3. Clean the cleaning unit with a vacuum cleaner. 4. Remove the entrance seal [A] together with the strip of two-sided tape [B] and both of the two-sided seals [C] which secure the entrance seal [A] to the lower casing [D] and the side seals [E]. 5. Clean the lower casing [D] with alcohol. Make sure that no tape remains on the casing surface and the side seals. 6. Place a new strip of two-sided tape [F] on the lower casing surface as shown in the illustration. The side edge [G] of the tape must be flush with the edge [H] of the lower casing and the lower edge [I] of the tape must be flush with the top of the projection [J] of the lower casing as shown in the illustration. 7. Place new strips of two-sided seals [K] on the side seals [E] at both sides. 8. Place the new entrance seal [L] on the two-sided tape [F] and the two-sided seals [K] as shown in the illustration. NOTE: a) The lower edge [M] of the entrance seal must be aligned with the edge [J] of the projection of the lower casing. b) Make sure that there are no waves in the upper edge [N] of the entrance seal.
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