Konica Minolta DF-606 Service Manual page 232

5. PUNCH SECTION
B. Punch position correction
The punch unit [13] positioned 5 mm [1] inward from the side edge of the paper [3] conducts the punch position
correction operation by moving the punch unit back and forth while conveying the paper to correct the misalign-
ment between the conveyed paper [7] and the punch position.
• Move the punch unit backward [10] until the certain side edge sensor ([2] for A4 paper) detects the side
edge of the paper [4].
• Then, move the punch unit forward [11] until the side edge sensor [2] detects the side edge of the paper [5]
(the side edge reference position detection).
• Move the punch unit forward further [6] so that the center of the punch edges [14] is positioned to the cen-
ter of the paper [8].
[1] Standby position (5mm inward from the side
edge of the paper)
[2] Side edge sensor
[3] Side edge of the paper
[4] Side edge detection operation
[5] Side edge reference position detection
[6] Paper center position detection
[7] Paper
22
[13] [14]
[12]
[11]
[10]
[9]
[8]
Theory of Operation Ver1.0 Jun.2005
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8] Center of the paper
[9] Paper conveyance direction
[10] Rear side direction
[11] Front side direction
[12] Punch edges
[13] Punch unit
[14] Center of the punch edges
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