Konica Minolta bizhub C658 Service Manual page 2000

bizhub C658/C558/C458/C368/C308/C258
4. OPERATION
4.1 Paper feed section
4.1.1 Paper feed drive mechanism
• Tray 3 has a paper feed drive mechanism having the same arrangement as that of tray 4. The paper feed drive mechanism is structured in
the same manner as in tray 1 and tray 2 of the main body.
• Whereas operation is controlled using a clutch in tray 1 and tray 2, tray 3 and tray 4 incorporates a paper feed motor that drives the pick-up
roller and feed roller to feed the paper.
• Then, the vertical transport motor transports the paper through the vertical transport section.
• The pick-up roller takes up sheets of paper and the feed roller and separation roller ensure that only one sheet of paper is separated and
fed into the main body.
• When the drawer is slid in, the lever is pushed to lower the pick-up roller.
• The tray is raised to cause the paper to push the feed roller. This raises the upper limit detection actuator, so that the upper limit is
detected.
• The paper empty sensor detects when paper in the drawer runs out.
[4]
[5]
[6]
[1] Tray 3/4 vertical transport sensor (PS113/PS123)
[3] Upper limit detection actuator
[5] Tray 3/4 upper limit sensor (PS116/PS126)
[7] Empty detection actuator
[9] Separation roller
[11] Feed roller
4.1.2 Roller retract mechanism
• When the paper feed tray is inserted or pulled out, there is a mechanism which retracts the pick-up roller and the separation roller.
• The pick-up roller retracts from the paper.
• The separation roller retracts from the feed roller.
Front view
[6]
[5]
[1] Feed roller
[3] Separation roller pressure spring
[2]
[3]
[2]
[4]
[3]
[5]
[7]
[8]
[4]
PD THEORY OF OPERATION PC-110/PC-210/PC-115/PC-215 > 4. OPERATION
[1]
[1]
[11]
[10]
[9]
[2] Vertical transport roller
[4] Lever
[6] Tray 3/4 paper empty sensor (PS114/PS124)
[8] Pick-up roller
[10] Tray 3/4 paper feed sensor (PS112/PS122)
- -
[1]
[2]
[3]
[2] Separation roller
[4] Paper
PD-4