Gestetner G060 Service Manual page 281

6.7.5 TRANSFER BELT CONTACT
Mechanism
The transfer belt contact and release mechanism improves the lifetime of the
transfer belt and drums.
The drum for black always contacts the belt, but the transfer belt moves away from
the other drums during monochrome printing.
In standby mode, the transfer belt contacts only the black drum. When the machine
prints a color page, the machine waits until the previous page has gone through
the transfer unit. Then the transfer belt contact motor [A] turns on and a cam [B]
moves the lower end of the transfer belt upwards so that it contacts the other three
drums.
The transfer belt home position [C] and contact [D] sensors detect the transfer belt
positions, as follows:
(default position)
HP sensor [C]
Contact sensor [D]
Off: Actuator not inside sensor
The machine does not release the transfer belt from the color drums during the job,
even if a monochrome page comes again. This is because the total printing speed
reduces if the transfer belt changes position often.
To pull out the transfer belt, the user moves the release lever and the belt moves
down and away from all four drums. Then the unit can be pulled out.
SM
IMAGE TRANSFER AND PAPER SEPARATION
Moving to
color
B/W printing
printing
position
→
On On
Off On
6-51
[D]
[B]
G060D403.WMF
Moving
back to the
Color
default
printing
position
→
Off Off Off
On Off On
[C]
[A]
Default
position
On On
On Off
G060