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Manual Feed Section (magicolor 5440 DL/5450) Main Unit Theory of Operation
2-82
II Composition/Operation
14.3.2 Media separation mechanism
• Drive from the Intermediate Transport Motor (M3) is transmitted through the Manual
Feed Tray Paper Feed Clutch (CL3) to turn the Feed Roller.
• The Feed Roller rotates to take up and feed media into the machine.
• Double-feeding of media is prevented by the Separation Roller provided with a torque
limiter.
14.3.3 Media feed control
• Drive from the Intermediate Transport Motor (M3) is transmitted through the Manual
Feed Tray Paper Feed Clutch (CL3) to turn the Feed Roller, thereby taking up and feed-
ing the media.
• The media taken up and fed in is conveyed onto the Synchronizing Roller.
• The media is pressed against the stationary Synchronizing 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 Synchronizing Roller is started [Synchronizing 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 Synchronizing Roller is started [Synchronizing 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 con-
veyed).
• As the trailing edge of the media reaches a point immediately before the Feed Roller, the
Feed Roller is stopped.
4138to2618c0
4138T2C002DB
Intermediate Transport Motor (M3)
Feed Roller
Separation
Roller
Feed Roller
Manual Feed Tray Paper Feed
Clutch (CL3)
Intermediate Transport Motor (M3)
Synchronizing Roller Sensor (PC4)
Synchronizing Roller Clutch (CL2)
Sub Scan Print Start signal (/TOD)
4138T2E007DA
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