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ELECTRICAL COMPONENT DESCRIPTION


1000-Sheet Finisher SR790/SR3090

B408/D588

1000-Sheet Finisher SR790/SR3090

B408/D588

1000-Sheet Finisher SR790/SR3090

B408/D588

4.3 ELECTRICAL COMPONENT DESCRIPTION


Symbol

Name

Function

Index No.

Motors

M1

Upper Transport

Drives the entrance roller and upper transport rollers.

32

M2

Lower Transport

Drives the lower transport rollers and the positioning roller.

29

M3

Jogger Fence

Drives the jogger fences.

26

M4

Staple Hammer

Drives the staple hammer.

17

M5

Stack Feed-out

Drives the stack feed-out belt.

27

M6

Exit Guide Plate

Opens and closes the exit guide plate.

4

M7

Exit

Drives the exit roller.

31

M8

Lower Tray Lift

Moves the lower tray up or down.

23

M9

Shift

Moves the shift roller from side to side.

11

M10

Stapler

Moves the stapler unit from side to side.

25





Sensors

S1

Entrance

Detects copy paper entering the finisher and checks for misfeeds.

3

S2

Paper Limit

Detects when the paper stack height in the upper tray is at its limit.

2

S3

Jogger Fence HP

Detects when the jogger fence is at home position.

12

S4

Shift HP

Detects when the shift roller is at home position.

10

S5

Stack Feed-out Belt HP

Detects when the stack feed-out belt is at home position.

19

S6

Stapler HP

Detects when the stapler is at home position.

14

S7

Exit Guide Plate HP

Detects when the exit guide plate is at home position.

5

S8

Stapler Tray Entrance

Detects copy paper entering the stapler tray and checks for misfeeds.

15

S9

Lower Tray Exit

Checks for misfeeds.

8

S10

Stack Height

Detects the top of the copy paper stack.

7

S11

Lower Tray Lower Limit

Detects when the lower tray is at its lower limit position.

24

S12

Stapler Tray Paper

Detects when there is copy paper in the stapler tray.

16

S13

Staple Sheet

Detects the leading edge of the staple sheet.

18

S14

Stapler Rotation HP

Detects when the staple hammer is at home position.

20

S15

Staple

Detects whether there are staples in the staple cartridge.

21





Solenoids

SOL1

Tray Junction Gate

Drives the tray junction gate.

22

SOL2

Stapler Junction Gate

Drives the stapler junction gate.

30

ELECTRICAL COMPONENT DESCRIPTION


Symbol

Name

Function

Index No.

SOL3

Positioning Roller

Moves the positioning roller.

13





Switches

SW1

Lower Tray Upper Limit

Detects when the lower tray is at its upper limit position.

9

SW2

Front Door Safety

Cuts the dc power when the front door is opened.

6

SW3

Upper Cover

Cuts the dc power when the upper cover is opened.

1





PCBs

PCB1

Main

Controls the finisher and communicates with the copier/printer.

28