Sharp AR-FN8 Service Manual page 84

CHAPTER 2 FINISHER UNIT BASIC OPERATION
5) The buffer roller continues to rotate, and the second sheet overlaps the first sheet.
6) When the trailing edge of the second sheet has moved past the buffer path paper sensor (PI14),
the buffer roller stops and waits for the third sheet.
2-48
1st sheet
Figure 2-251
2nd sheet
1st sheet
Buffer path paper
sensor (PI14)
Figure 2-252
2nd sheet
3rd sheet