2
2
2-13
2-13
Technology > Stack Tray Unit > Shutter Operation
Technology > Stack Tray Unit > Shutter Operation
Tray 1
Paper surface sensor (PI114)
Edge
Tray 2
Tray 2 paper surface
sensor (PI115)
Edge
Paper surface sensor flag
Paper surface
sensor flag
Detected items
Tray 1 shift area sensor PCB
Area sensor 1
Area sensor 2
Area sensor 3
(PCB4)
(PCB4)
(PCB4)
Tray 1 upper limit
OFF
OFF
OFF
Stack count 500 sheet limit exceeded ON
ON
OFF
Stack count 1000 sheet limit
exceeded
ON
OFF
OFF
Tray 1 lower limit
ON
OFF
ON
Detected items
Tray 2 shift area sensor PCB
Area sensor 1
Area sensor 2
Area sensor 3
(PCB5)
(PCB5)
(PCB5)
Tray 2 upper limit
OFF
ON
OFF
Stack count 500 sheet limit
exceeded
ON
ON
OFF
Stack count 1000 sheet limit
exceeded
ON
OFF
OFF
Tray 2 lower limit (finisher)
OFF
OFF
OFF
Tray 2 lower limit (saddle finisher) OFF
OFF
ON
* The symbol for the area sensor of each PCB is same because tray 1/tray 2 shift area sensor
PCBs are the same board.
F-2-20
T-2-2
T-2-3
Shutter Operation
When tray 1 passes the delivery section with paper already stacked, the stacked paper may
get caught by the delivery section.
A shutter is provided at the delivery section to prevent this.
The shutter closes when tray 1 passes the delivery section.
This is performed even when no paper is stacked.
When the shutter clutch (CL101) and stack ejection lower roller clutch (CL102) are ON, the
shutter moves up (close) when the stack ejection motor (M102) turns forward and moves
down (open, delivery enabled) when the motor turns backward.
The open/close of the shutter is detected by the shutter home position sensor (PI113).
Shutter clutch (CL101)
Stack ejection motor (M102)
Shutter home position
sensor (PI113)
Stack ejection lower roller clutch (CL102)
Shutter
Stack ejection
roller (lower)
F-2-21
Summary of Contents for J1
Page 4: ...Blank Page ...
Page 8: ...Safety Precautions Notes Before it Works Serving Points to Note at Cleaning ...
Page 58: ...3 3 Periodic Servicing Periodic Servicing List of Work for Scheduled Servicing ...
Page 99: ...5 5 Adjustment Adjustment Outline Basic Adjustment Adjustment at Time of Parts Replacement ...
Page 133: ...Appendix Service Tools General Circuit Diagram ...