Ricoh DD 4450 - Metal Screen Installation Procedure

Drum
SM 4-61 C279
Replacement
and
Adjustment
Installation
 Make sure that the correct end of the metal screen is overlapping. (The right side overlaps, as
viewed from the non-operation side, as shown above.)
 The 4 screws holding the drum master clamper are longer than the 12 screws holding the
metal screen, although they are similar in appearance. Be careful not to mix them up or use
the wrong screws.
 When installing the metal screen, secure the trailing edge first with the 2 screws. Then,
tighten the other screws while removing the slack from the screen. Make sure that the gap
between the drum flanges and the screen is 0.3 mm or less, as shown above. (The two holes
[A] on the trailing side are round holes and the other holes are long holes, to allow for the
removal of the slack.)
 Do not scratch the cloth screen or metal screen.
 If there is no filament tape [B] where the metal screen is overlapping, replace the filament
tape. (W: 19mm × L: 355mm)