Konica Minolta Bizhub 501 Service Manual page 251

5. OPERATION
A. Operation
• The paper conveyance path of the bypass gate [1] is switched over in the bypass route direction [2] when
the bypass gate solenoid (SD1) turns OFF and switched over in the main gate direction [10] when it turns
ON.
• The paper conveyance path of the main gate [9] is switched over in the main route direction [4] when the
main gate solenoid (SD2) turns OFF and switched over in the sub tray route direction [8] when SD2 turns
ON.
• The paper conveyance to the bypass route is used when conveying each of the 1st sheets of paper of the
2nd and succeeding copies in the staple mode to increase the handling capacity of paper even while in the
stapling operation.
Conveyance path
Sub tray
Main tray
Bypass route
[1] Bypass gate
[2] Bypass route
[3] Bypass route conveyance sensor (PS2)
[4] Main route
[5] Intermediate conveyance sensor (PS3)
B. Control
(1) Sub tray paper exit
• A specified period of time after the fusing exit sensor (PS3) of the main body turns ON and detects the lead-
ing edge of paper, the bypass gate solenoid (SD1) turns ON and the main gate solenoid (SD2) also turns
ON to switch over the conveyance path to the sub tray route.
• A specified period of time after the sub tray exit sensor (PS1) turns ON with the trailing edge of paper
detected, SD1 and SD2 turn OFF.
14
SD1 SD2
ON ON
ON OFF
OFF —
[5] [6] [7]
[4] [3]
Theory of Operation Ver.1.0 May. 2008
[8] [9] [10]
[2] [1]
[6] Main route conveyance sensor (PS4)
[7] Sub tray exit sensor (PS1)
[8] Sub tray route
[9] Main gate
[10] Main gate direction conveyance path
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