Media Separation Mechanism - Konica Minolta magicolor 5550 Service Manual

Theory of operation Ver. 1.0 Nov. 2006
17.3.2

Media separation mechanism

• Drive from the intermediate transport motor is transmitted through the media feed clutch/
2 to turn the feed roller.
• The feed roller rotates to take up and feed media into the main body.
• Double-feeding of media is prevented by the separation roller provided with a torque lim-
iter.
Intermediate transport motor (M3)
17.3.3 Media feed control
• Drive from the intermediate transport motor is transmitted through the media feed clutch/
2 to turn the feed roller, thereby taking up and feeding the media.
• The media taken up and fed in is conveyed onto the registration roller.
• The media is pressed against the stationary registration roller so that a loop is formed in
the media. The feed roller is then stopped. The loop thus formed in the media corrects
any mechanical skew in the media.
• The registration roller is started [Registration roller clutch (CL2)] in synchronism with the
sub scan print start signal (/TOD) of the controller to convey the media.
• At the same time that the registration roller is started [Registration roller clutch (CL2)],
the feed roller is started again so that the media is conveyed further (this is done to
reduce load otherwise placed on the media feed section when the media is conveyed).
• As the trailing edge of the media reaches a point immediately before the feed roller, the
feed roller is stopped.
Intermediate transport motor (M3)
Media feed clutch/2 (CL3)
Registration sensor (PS4)
Registration roller clutch (CL2)
Sub scan print start signal (/TOD)
Feed roller
4138to2089c0
4138to2058c0
17. Media feed section (Tray 2)
Feed roller
Separation
roller
A011T2E067DA
67