Konica Minolta bizhub C250 Service Manual page 134

Theory of operation ver. 3.0 Aug. 2006
20.3 Operation
20.3.1 Fusing roller drive control
A. Fusing roller speed change control
• The fusing roller (heating roller/fusing pressure roller) is driven by the fusing motor (M4).
The fusing motor (M4) drives the heating roller. The fusing pressure roller rotates along
with the heating roller.
• In order to avoid fusing error, the rotation speed of the fusing roller is to be set to one of 2
levels according to the paper type or the print mode.
Paper type/print mode
Plain paper/monochrome
Plain paper/color
Thick paper
OHP transparencies
When checking the remaining paper
When the temperature of the fusing pressure roller
reaches to the temperature the fusing drive motor
starts rotating during warm-up.
Printing
Fusing speed (mm/sec)
111
111
55.5
55.5
Control Fusing speed (mm/sec)
111
111
System speed
20. Fusing section
101