Upper Synchronizing Roller Positioning; Paper Dust Remover - Minolta EP1080 Service Manual

19-1. Upper Synchronizing Roller Positioning

Since the Upper Synchronizing Roller is fitted to the Imaging Unit, it must be
correctly positioned with reference to the Lower Synchronizing Roller when
the Upper Half of the copier is swung down into the locked position.
For this purpose, slits are cut in the lower copier frame and the Bushings of
the Upper Synchronizing Roller are to fit into these slits.
The Upper Synchronizing Roller may be grounded through the Bushings
which are in contact with the frame. To even positively ground the Roller, the
Ground Plate fitted to the lower frame is makes in contact with the Bushings
of the Upper Synchronizing Roller.
Upper Synchronizing Roller Bushing
Ground Plate

19-2. Paper Dust Remover

The Paper Dust Remover is installed so that it makes contact with the Upper
Synchronizing Roller. Since the Upper Synchronizing Roller is covered with
a vinyl tubing, triboelectric charging occurs as the Roller turns in contact with
the Paper Dust Remover. As paper is then fed between the Synchronizing
Rollers, the charges on the tubing attract paper dust from the paper. The
dust is then transferred onto the Paper Dust Remover.
Upper Synchronizing Roller
Lower Copier Frame
Paper Dust Remover
Lower Synchronizing Roller
M-68