Sharp SF-S55N Service Manual page 30

20-bin staple sorter

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SF-S55N

3. Sensors and detectors

Mark

Name

PI1

Joint detection

PI2

Detection of 2-transfer guide UP

PI3

Non-sort paper detection

PI4

Sort paper detection

PI5

Detection of transfer motor clock

PI6

Detection of transfer guide home position

PI7

Out-of-bin paper detection

PI8

Detection of stapler unit rocking motor clock

PI9

Detection of stapler unit rocking home position

PI10

Detection of stapler unit rocking position

PI11

Paper holder detection

PI12

Multi-guide home position detection

PI13

Reference wall home position detection

PI14

Push bar home position detection

PI15

Push bar center position detection

PI16

Guide bar home position detection

PI17

Bin shift motor clock detection

PI18

Bin unit home position detection

PI20

Lead cam position detection

PI21

Lead cam center position detection

PI22

Door sensor

Detection of stapling home position

Detection of stapler unit direction

Detection of stapler unit shift position

Detection of paper in bin unit (light emitting section) To detect existence of paper in bin (at paper unloading side)

Detection of paper in bin unit (light receiving section)

Detection of paper in stapler

Detection 2 of paper in bin unit (light emitting section)

Detection 2 of paper in bin unit (light receiving section)

Functions

To detect that the sorter has been connected (installed) to the copying machine

To detect that the transfer guide is UP (the transfer guide shifts up when double or

single stapling is executed)

To detect that paper exists in the non-sort transfer section

To detect that paper exists in the sort transfer section

To detect rotational speed of transfer motor with the clock plate

To detect that the transfer guide is in its home position

To detect that paper exists between the sort bin and the transfer guide

To detect rotational speed of stapler unit rocking motor with the clock plate

To detect that the stapler unit is in its rocking home position

To check the position of stapler unit and to detect the final route (rotation direction) to return

to the home position (rotation direction)

To detect that the paper holder arm is holding paper (the arm holds copies in case of

stapling)

To detect that the multi-guide is in its home position (the multi-guide is one of paper restricting plates)

To detect that the reference wall is in its home position (the reference wall is one of

paper restriction plates)

To detect that the push bar is in its home position (copy is pushed out in case of front

access)

To detect the push bar position

To detect that the guide bar is in its home position (the guide bar has the function to

align papers and to push out copies in case of front side access).

To detect rotational speed of bin shift motor with the clock plate

To detect that the bin unit is in its home position

To detect that the lead cam is in the horizontal area

To detect that the lead cam is in the center position of horizontal area

To detect that the front door is opened or closed

To detect one stapling operation (one turn of cam)

To detect direction of stapler unit (the stapler has two directions, one of which is

selected depending on stapling process).

To detect the home position of stapler shift and stapling position

To detect existence of paper in the stapling section of staple unit

To detect existence of paper in bin (front part of bin)

3−4

Remarks

Photointerrupter

Sensor PWB

LED and phototransistor

LED and

phototransistortransmitting sensor

LED and phototransistor

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