2Nd Folding Control - Konica Minolta DF-606 Service Manual

Theory of Operation Ver1.0 Jun.2005
7.2.2

2nd folding control

The paper conveyed from the 1st folding section to the 2nd folding section is stopped by the 2nd folding stop-
per [4] and forms a loop [8] between conveyance drive roller [10] and the 2nd folding roller [9]. The loop grows,
and then it is caught by these rollers and the 2nd folding is conducted.
The 2nd stopper motor (M2) turns ON to move the 2nd stopper [4] to the evacuation position [3] for the paper
conveyance when the leading edge of the paper (crease of the 1st folding) conveyed to the paper exit direction
[7] passes the passage sensor (PS1) [6].
The 2nd folding is not conducted for 8.5 x 14 paper.
[10]
[9]
[8]
[7]
[6]
[5]
[4]
[3]
[2]
[1] 1st folding roller
[2] Exit sensor (PS9)
[3] Home position of the 2nd folding stopper
[4] Folding position of the 2nd folding stopper
[5] 2nd stopper home sensor
[6] Passage sensor (PS1)
[7] Paper exit direction
A. Operation timing
The 2nd folding stopper motor (M3) turns ON [2] to drive the 2nd folding stopper to the appropriate position [2] in
accordance with the paper size when the paper edge sensor board (PESB) detects the leading edge of the paper.
M3 rotates in the reverse direction to move the 2nd folding stopper to the home position [3] when the passage
sensor (PS1) detects the leading edge of the paper after the 2nd folding. It opens the paper exit path.
M3 turns ON to replace the stopper to the original position [4] for the subsequent Z-folding when the exit sensor
(PS9) detects the trailing edge of the paper.
Paper edge sensor board (PESB)
2nd stopper home sensor (PS4)
2nd stopper motor (M3)
Passage sensor (PS1)
Exit sensor (PS9)
[1] Start signal from the main body
[2] Moving to the 2nd folding position
[1]
[1] [2]
[3]
[4]
[12]
[13]
[11]
[8] Loop
[9] 2nd folding roller
[10] Conveyance drive roller
[11] Front side
[12] 2nd folding position
[13] Conveyance direction
[3] [4]
Moving to the home position
Moving to the 2nd folding position for the subsequent paper
7. Z-FOLDING SECTION
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