Konica Minolta 5430 DL 5440 DL 5450 - Manual (Page 112)

Main Unit Theory of Operation Media Feed Section (magicolor 5440 DL/5450)
2-75
II Comp
osition
/O
p
eration
13.3.2 Paper separation mechanism
• Drive from the Intermediate Transport Motor (M3) is transmitted through the Tray 1 Paper
Feed Clutch (CL1) to turn the Feed Roller.
• The Feed Roller rotates to take up and feed paper into the machine.
• Double-feeding of paper is prevented by the Separation Roller provided with a torque lim-
iter.
13.3.3 Paper feed control
• Drive from the Intermediate Transport Motor (M3) is transmitted through the Tray 1 Paper
Feed Clutch (CL1) to turn the Feed Roller, thereby taking up and feeding the paper.
• The paper taken up and fed in is conveyed onto the Synchronizing Roller.
• The paper is pressed against the stationary Synchronizing Roller so that a loop is formed
in the paper. The Feed Roller is then stopped. The loop thus formed in the paper corrects
any mechanical skew in the paper.
• 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 paper.
• At the same time that the Synchronizing Roller is started [Synchronizing Roller Clutch
(CL2)], the Feed Roller is started again so that the paper is conveyed further (this is done
to reduce load otherwise placed on the paper feed section when the paper is conveyed).
• As the trailing edge of the paper reaches a point immediately before the Feed Roller, the
Feed Roller is stopped.
4138to2058c0
Intermediate Transport Motor (M3)
Feed Roller
4138to2089c0
Separation
Roller
Feed Roller
Intermediate Transport Motor (M3)
Tray 1 Paper Feed Clutch (CL1)
Synchronizing Roller Sensor (PC4)
Synchronizing Roller Clutch (CL2)
Sub Scan Print Start signal (/TOD)
4138T2E006DA
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