Operation; Fusing Drive Release Mechanism; Fusing Speed Correction - Konica Minolta BizHub C360 Service Manual

20. FUSING SECTION

20.3 Operation

20.3.1

Fusing drive release mechanism

• The fusing drive release gear transmits the driving force of the fusing motor to the fusing
unit and transfer belt retraction mechanism.
• When the right door is opened, the fusing drive release lever locked by the registration
unit is unlocked.
• When the fusing drive release lever is unlocked, the connection of the fusing drive
release gear is disengaged, so that drive connection to the fusing roller in the fusing unit
is also disengaged.
• If a paper misfeed occurs in the fusing section, opening the right door will disengage the
drive connection of the fusing roller. Thus, the jammed paper can be pulled out easily
with a light force.
Fusing motor (M3)
20.3.2

Fusing speed correction

A. Fusing roller speed change control
• The fusing belt is driven by the fusing motor.
• The driving force of the fusing motor is transmitted to the fusing pressure roller via the
fusing drive release mechanism. The fusing roller is pressed up against the fusing belt,
so that the fusing belt (fusing roller, heating roller) is rotated by following the movement
of the fusing pressure roller.
• To avoid fusing failure, the fusing belt rotation speed is controlled to be switched from
one level to another depending on paper type.
Paper type
Plain paper (60 to 90 g/m
OHP film (Only for black printing)
Thick paper 1/2/3/4 (91 g/m
Postcards, Envelopes, Labels
Glossy paper
210
Fusing drive release gear
Fusing drive release
lever
Color mode
2
),
Black/Color
2 2
to 271 g/ m ),
Black/Color
Black/Color
Theory of Operation Ver. 1.0 Jul. 2009
Fusing speed (mm/second)
bizhub C360/C280
166.6
55.5
55.5
A0EDT2C249DA
bizhub C220
111