Specifications

3.4 DEVELOPMENT ROLLER REPLACEMENT
1. Take out the development roller and remove the toner tank. (See Toner
Tank Removal.)
2. Empty the developer from the development unit onto a clean sheet of pa-
per. Keep the developer clean for later use; do not allow it to be contami-
nated by foreign material.
3. Remove the development roller positioning bracket [A] (2 screws).
4. Remove the inlet seal plate. (See Inlet Seal Plate Removal.)
5. Remove the development roller gear [B] (1 C-ring).
6. Remove the bearing retainer [C] (2 screws).
7. Remove the upper case [D] (3 screws).
8. Remove the development roller [E] with bearing [F].
9. Replace the development roller.
NOTE: a) When replacing the development roller, use a blower brush to
remove any carrier from the bearing, inlet seal plate, etc.
b) After reassembling the development unit, make sure that the DG
gap is within 0.6 ± 0.07 mm. (See Doctor Gap Adjustment.)
[D]
[F]
[C]
[B]
[E]
[A]
1 December 1990
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