Transfer Belt Cleaning Mechanism; 1St Transfer Belt Backward Rotation Control; Toner Collecting Port Shutter Mechanism - Konica Minolta BIZHUB C3100P Service Manual

[1] Sliding plate

6.3.3 Transfer belt cleaning mechanism

• To scrape residual toner off the surface of the transfer belt unit, the transfer belt is provided with a cleaning blade.
• The cleaning blade is in pressed contact with the transfer belt at all times. That is, it cleans the surface of the transfer belt as long as the belt
turns.
• The toner scraped off by the cleaning blade is collected to the middle of the transfer belt by the waste toner collecting screw.
• The collected waste toner is conveyed from the waste toner discharge port of the transfer belt unit to the waste toner bottle by way of the
waste toner collecting screw.
[1]
[1] Waste toner collecting screw
[3] Cleaning blade
[5] Waste toner collecting screw

6.3.4 1st transfer belt backward rotation control

• To prevent paper dust, toner, and other foreign matter from being wedged in the cleaning blade while the transfer belt remains stationary,
the transfer belt is turned backward so that the foreign matter can be removed.
(1) Operation timing
• At the end of the print cycle
• Main body interior temperature is a predetermined value or less.

6.3.5 Toner collecting port shutter mechanism

• A shutter mechanism is provided to prevent waste toner from being spilled from the waste toner discharge port when the transfer belt unit is
removed and reinstalled.
• The shutter is fitted to the transfer belt unit. When the transfer belt unit is removed, the waste toner discharge port is automatically closed.
[1] Shutter
[2]
[3]
[5]
[1]
O THEORY OF OPERATION bizhub C3100P > 6. 1ST TRANSFER
[2] Release lever
[4]
[2] Transfer belt
[4] Waste toner discharge port
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[1]
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O-18
SECTION