Operation; 1St Transfer Output Control; Transfer Belt Cleaning Mechanism - Konica Minolta magicolor 1690MF Service Manual

13. 1st transfer section

13.3 Operation

13.3.1

1st transfer output control

• The 1st image transfer roller is not equipped with a pressure/retraction mechanism and
presses the transfer belt up against the photo conductor drum.
• The 1st transfer voltage is determined during the image stabilization control in consider-
ation of the machine condition, environment, and print mode.
13.3.2

Transfer belt cleaning mechanism

• To scrape residual toner off the surface of the transfer belt, there is a cleaning blade pro-
vided.
• The cleaning blade is pressed up against the transfer belt, thereby scraping residual
toner off the surface of the transfer belt.
• The toner collecting screw conveys toner scraped off by the cleaning blade into the imag-
ing cartridge.
• The prevention seal is affixed to prevent waste toner from leaking through a gap above
the cleaning blade.
Prevention seal
Toner collecting screw
44
Theory of Operation Ver. 1.0 Nov. 2008
Driven roller 22
Cleaning blade
A034T2C528AA