Ricoh SR790 User Manual Download Page 12 | Manualshive

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26 July 2002

ELECTRICAL COMPONENT LAYOUT

B408-11

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4.2 ELECTRICAL

COMPONENT

LAYOUT

1. Upper Cover Switch

2. Paper Limit Sensor

3. Entrance

Sensor

4. Exit Guide Plate Motor

5. Exit Guide Plate HP Sensor

6. Front Door Safety Switch

7. Stack

Height

Sensor

8. Lower Tray Exit Sensor

9. Lower Tray Upper Limit Switch

10. Shift HP Sensor

11. Shift Motor

12. Jogger Fence HP Sensor

13. Positioning Roller Solenoid

14. Stapler HP Sensor

15. Stapler Tray Entrance Sensor

16. Stapler Tray Paper Sensor

17. Stapler Hammer Motor

18. Staple Sheet Sensor

19. Stack Feed-out Belt HP Sensor

20. Stapler Rotation HP Sensor

21. Staple Sensor

B408D102.WMF

B408D103.WMF

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Summary of Contents for SR790

Page 1: ...1000 SHEET FINISHER Machine Code B408...

Page 2: ...off the main power switch and unplug the machine before beginning any of the procedures in this section NOTE This manual uses the following symbols See or Refer to Screws Connector Clip ring E ring 1...

Page 3: ...n exit guide plate B 3 Upper side cover C x 2 4 Front cover support plate D x 1 5 Front cover E 6 Front inner cover F x 2 7 Harness G 8 Unhook the spring H 9 Turn the stapler unit I and take it out 10...

Page 4: ...6 July 2002 MOTORS B408 3 Peripherals 1 3 MOTORS 1 3 1 SHIFT MOTOR 1 Rear cover 1 1 2 Shift motor A x 2 x 1 1 3 2 STAPLER MOTOR 1 Rear cover 1 1 2 Stapler motor A x 2 x 1 B408R123 WMF B408R124 WMF A A...

Page 5: ...R TRANSPORT MOTOR AND EXIT MOTOR 1 Rear cover 1 1 2 Motor assembly A x 4 x 2 3 Upper transport motor B x 4 4 Exit motor C x 4 1 3 4 LOWER TRANSPORT MOTOR 1 Main PCB 1 1 2 Lower transport motor A x 2 x...

Page 6: ...ND SENSORS 1 4 1 PREPARATION 1 Front cover and inner cover 1 2 2 Upper side cover A x 2 3 Upper tray B x 1 4 Lower side cover C x 2 5 Loosen the 2 screws D 6 Lower the lower tray guide plate E 7 Guide...

Page 7: ...SORS 26 July 2002 B408 6 1 4 2 STACK HEIGHT SENSOR 1 Stack height sensor assembly A x 1 2 Stack height sensor B x 1 1 4 3 STAPLER TRAY PAPER SENSOR 1 Stapler tray paper sensor A x 1 B408R121 WMF B408R...

Page 8: ...6 July 2002 MOTORS AND SENSORS B408 7 Peripherals 1 4 4 LOWER TRAY LIFT MOTOR 1 Lower tray lift motor A x 2 x 1 1 4 5 STACK FEED OUT MOTOR 1 Stack feed out motor A x 2 x 1 B408R119 WMF B408R122 WMF A...

Page 9: ...urns off Tray exit sensor Off check The tray exit sensor does not turn off within the normal time after it turns on Stapler tray entrance sensor On check The stapler tray entrance sensor does not swit...

Page 10: ...table below SW100 1 2 Description 0 0 Normal operation mode Default 1 0 Packing mode Before packing the machine do the following Set switch 1 to 1 then back to zero The lower tray moves to the lowest...

Page 11: ...2 Upper Tray Exit Roller 3 Entrance Roller 4 Tray Junction Gate 5 Upper Transport Roller 6 Stapler Junction Gate 7 Lower Transport Rollers 8 Stapler 9 Stack Feed out Belt 10 Positioning Roller 11 Shif...

Page 12: ...ht Sensor 8 Lower Tray Exit Sensor 9 Lower Tray Upper Limit Switch 10 Shift HP Sensor 11 Shift Motor 12 Jogger Fence HP Sensor 13 Positioning Roller Solenoid 14 Stapler HP Sensor 15 Stapler Tray Entra...

Page 13: ...23 Lower Tray Lift Motor 24 Lower Tray Lower Limit Sensor 25 Stapler Motor 26 Jogger Fence Motor 27 Stack Feed out Motor 28 Main Board 29 Lower Transport Motor 30 Stapler Junction Gate Solenoid 31 Ex...

Page 14: ...per 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 wh...

Page 15: ...g 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 Cut...

Page 16: ...DRIVE LAYOUT 1 Exit Motor 2 Upper Transport Motor 3 Lower Transport Motor 4 Shift Motor 5 Exit Guide Plate Motor 6 Lower Tray Lift Motor 7 Stack Feed out Motor 8 Jogger Motor 9 Stapler Motor B408D105...

Page 17: ...n gate solenoid C and stapler junction gate solenoid D Upper Tray Mode The tray junction gate solenoid remains off The copies go up to the upper tray Sort Stack Mode The tray junction gate solenoid tu...

Page 18: ...July 2002 UPPER TRAY B408 17 Peripherals 4 6 UPPER TRAY When the paper limit sensor A switches on during feed out for each of three consecutive sheets of paper paper overflow is detected B408D109 WMF...

Page 19: ...y is removed the stack height sensor F turns off and the tray lifts up Then the tray stops when the sensor turns on again the tray pushes up the feeler If the stack height sensor fails the lower tray...

Page 20: ...transport roller the shift motor turns on driving the shift gear disk and the link D After the paper is delivered to the lower tray E the shift roller moves to its home position which is detected by t...

Page 21: ...ositioning roller C pushes the copy against the bottom of the stack stopper D For the horizontal paper alignment the jogger front fence E and the rear fence F move to the waiting position which is 18...

Page 22: ...e A is moved up to make a gap between the exit rollers This operation is done for all paper sizes but is only needed for the larger sizes The exit guide plate motor B and exit roller release cam C con...

Page 23: ...unit or no staples in the staple cartridge staple end is indicated on the operation panel The stapler sensor C detects this The stapler rotation HP sensor D checks whether the staple hammer mechanism...

Page 24: ...its home position to the stapling position If two staple position mode is selected the stapler moves to the front stapling position first then moves to the rear stapling position However for the next...

Page 25: ...s it to the shift roller The shift roller takes over stack feed out after the leading edge reaches this roller Just before the stapled stack passes through the lower tray exit sensor the stack feed ou...

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