Konica Minolta bizhub C658 Service Manual page 1827

bizhub C658/C558/C458/C368/C308/C258
The following illustration is for bizhub C368/C308/C258.
[1]
[7]
[1] 1st transfer roller Y/M/C/K
[3] Pressure cam
[5] Fusing motor (M3)
[7] 1st transfer roller drive arm Y/M/C/K
The following illustration is for bizhub C368/C308/C258.
[1]
[1] Slide plate
[3] Actuator
7.3.3 Pressure/retraction control by print mode
• To extend the service life of the PC drum/Y, M, C, the transfer belt is retracted from the color PC drum in the black mode.
• In the black mode, the 1st transfer roller/Y, M, C is retracted and the color drum unit and color developing unit are stopped.
• The 1st transfer roller/K is pressed against the PC drum/K at all times in both black and color modes.
(1) Color mode
• In the color mode, the 1st transfer roller is where the PC drum is pressed against the transfer belt for all four colors of toner.
(2) Black mode
• In the black mode, the 1st transfer roller/Y, M, C is where the PC drum/Y, M, C leaves the transfer belt, while the 1st transfer roller/K is
where the PC drum/K is pressed against the transfer belt. This allows the PC drum/Y, M, C to stop rotating in this mode.
Color mode
[1]
[9]
[8]
O THEORY OF OPERATION bizhub C658/C558/C458/C368/C308/C258 > 7. 1ST
[4]
[2]
[3]
[6]
[2]
[3]
[2] [3]
[7] [6]
[5]
[2] Slide plate
[4] 1st transfer pressure clutch (CL5)
[6] Pressure cam
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[2] 1st transfer pressure sensor (PS39)
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[4]
[5]
O-52
TRANSFER SECTION