Konica Minolta bizhub C658 Service Manual page 1889

bizhub C658/C558/C458/C368/C308/C258
[6]
[3]
[5]
[7]
[1] Fusing belt
[3] Pressure lever
[5] Pressure cam
[7] Pressure position
(1) Operation timing
Warm-up
Pre-standby
Standby
Printing
When printing the multi jobs
Energy save mode (lower power mode, sleep mode)
When a malfunction or misfeed occurs
When the fusing heater lamp is turned OFF (a door opened, a malfunction occurs, or other
factors.)
• *1: Pressure/retraction will be conducted after the currently printed paper passes between the fusing belt and the fusing pressure roller.
The timing for the next paper to be fed will be delayed during the pressure/retraction and keep the certain period of time between feeding
the papers.
14.3.5 Soaking roller pressurization/release control
• The cleaning roller collects paper dust and toner that has adhered to the fusing pressure roller via the soaking roller. However, sometimes
not all paper dust or toner is collected from the fusing pressure roller when the fusing pressure roller and soaking roller are always
pressurized.
• A pressurization/release mechanism has been provided to the soaking roller to prevent the fusing pressure roller from becoming dirty.
• The soaking roller pressurization/release control releases the roller at start of printing, and pressurizes the soaking roller at end of printing.
• The release lever operates when the soaking roller pressure solenoid is turned ON to separate the soaking roller.
O THEORY OF OPERATION bizhub C658/C558/C458/C368/C308/C258 > 14.
[1]
[2]
[8]
[5]
[4] [3]
Condition
At the start of a warm-up cycle
At the start of the pre-standby
At the start of the standby
For envelopes
For paper types other than envelopes
When current printing is for other than
envelopes and the next job is for the
envelopes.
When current printing is for the envelopes
and the next job is for other than envelopes.
O-114
FUSING SECTION (bizhub C658/C558)
[3]
[5] [4]
[2] Fusing pressure roller
[4] Fusing pressure home sensor (PS38)
[6] Fusing pressure motor (M11)
[8] Release position
Fusing pressure roller position
Retraction (bizhub C558)
Retraction and pressure (bizhub C658)
Pressure
Retraction
Retraction
Pressure
Pressure -> Retraction *1
Retraction -> Pressure *1
Retraction
Retraction
Stop