1) After the finisher controller board has detected the trailing edge of the paper at the inlet sensor (PS3), the paper is fed on for 210mm and then the inlet roller

disengage motor (M27) drives and disengages the disengage roller friction roller. (Grounding performed when the paper has been fed 38.2mm after the inlet

sensor (PS3) goes OFF.)

Finisher controller PCB

2) When the finisher controller board has detected the trailing edge of the paper at the inlet sensor (PS3), the feed motor (M2) begins to rotate forwards after a

prescribed period. This causes the roller inside the shift roller unit to begin to rotate

3) The finisher controller board computes the side registration correction value from the side registration detection results.

Then, once the trailing edge of the paper clears the inlet feed roller (*1), and based on the computed side registration correction value, the side registration shift

motor (M7) will rotate either forwards or in reverse. In this way, the shift roller unit will move either forwards or backwards, and the paper, nipped by the shift

roller will be shunted either backwards or forwards, as it is being fed through. As a result, the paper's side registration value is corrected to the prescribed value.

*1: When the paper is 297mm or less in the feed direction. For paper of 297mm or longer, this timing is when the trailing edge of the paper enters the finisher

inlet.

3-10

[4] Horizontal registration detection position

[5] Standby position

[1]

[2]

[3]

M27

PS3

F-3-14

PS3

0020-4701