Neutralization And Separation Of Paper; Belt Positioning Sensor - Konica Minolta magicolor 2480MF Service Manual

Theory of Operation Ver. 1.0 Nov. 2005
13.3.5

Neutralization and separation of paper

• To neutralize the paper that has undergone the 2nd transfer process, a Charge Neutraliz-
ing Cloth is provided for the guide plate after the 2nd Transfer Roller.
13.3.6

Belt Positioning Sensor

• When development takes place in this machine, the image of each color of toner is
formed on the surface of the Transfer Belt. The leading edge of the image of each color
of toner must therefore be aligned correctly with each other on the surface of the Transfer
Belt.
• The position of the Transfer Belt is detected when the Belt Positioning Sensor (PS4)
detects detection holes provided in the Transfer Belt.
• There are two detection holes provided in the Transfer Belt. The image write start posi-
tion is varied according to the paper size. For a paper size of A4 or smaller, the image
write start position is aligned with detection hole A. For a paper size greater than A4,
detection hole B serves as the reference for the image write start position.
Detection
Hole B
Charge Neutralizing Cloth
Transfer Belt
Direction of Rotation of Transfer Belt
Belt Positioning Sensor
13. Image Transfer Section
Charge Neutralizing Cloth
2nd Transfer Roller
4139to2084e0
Detection
Hole A
4139to2104e0
45