Kyocera FS 2000D User Manual

							2F8/2F9/2GA-1
2-1-11 Figure 2-1-18Fuser section block diagram
Fuser unit
Thermal cutout
Fuser heater lamp
Heat
roller Fuser
thermistor SFuser
thermistor M Power source
PWB
Engine PWB
YC102-1
YC6-9
YC6-2 YC102-3LIVE
COMMON
THERM1
EXITPAP YC6-11THERM2Fuser unit
Thermal cutout
Fuser heater lamp
Heat
roller
Paper exit
sensorFuser
thermistor M Power source
PWB
Engine PWB
YC102-1
YC6-9
YC6-2 YC102-3LIVE
COMMON
THERM1
EXITPAP YC6-11
30/31 ppm printer
(EUR/USA model)
35/37 and 45/47 ppm printer
(EUR/USA model)Paper exit
sensor
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							2F8/2F9/2GA-1
2-1-12
2-1-8  Paper exit section/rear unit
(1) Paper exit section/rear unit
The paper exit section transports the paper which passed the fuser unit towards the top tray. The paper which passed 
through the fuser unit turns on the paper exit sensor which is driven by the fuser actuator in the fuser unit, and is led by the 
guide comprised of the rear cover and the frame, finally reaching the face down upper roller. The paper is delivered to the 
top tray by the rotation of the face down upper roller.
Figure 2-1-19Paper exit section/rear unit


















 	 
 
 





 




30/31 ppm printer
(EUR/USA model)35/37 and 45/47 ppm printer
(EUR/USA model)
(1) Face down upper roller
(2) Exit FD pulley
(3) Face down tray paper full sensor
(4) FD cover
(5) Feed FD pulley
(6) Face down lower roller
(7) DU guide
(8) Feed DU pulley(9) Face up roller
(10) Exit FU pulley
(11) Face up guide
(12) Duplex sensor (Actuator)
(13) Vertical guide
(14) Paper exit guide
(15) Rear cover
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							2F8/2F9/2GA-1
2-1-13 Figure 2-1-20Paper exit section/rear unit block diagram
Engine
PWB
Fuser unit
Fuser
unit Connect-L
PWB
Connect-R
PWBConnect-R
PWB Connect-L
PWB
YC6-2 YC4-1
YC9-2
YC9-3
YC9-4
YC9-5
FDPFULN
AUTA1
AUTB3
AUTB1
AUTB3
Rear unit Rear unit
30/31 ppm printer (EUR/USA model) 35/37 and 45/47 ppm printer (EUR/USA model)
Face
up/down
solenoid
Duplex
sensor Exit
sensor
YC9-2
YC9-3
YC9-4
YC9-5AUTA1
AUTB3
AUTB1
AUTB3
Engine
PWBSwitch back
motor
Switch back
motor
YC6-2 YC6-12
YC6-14YC4-1
FDDRNFDPFULN
FUDRN
Face down
tray paper
full sensorFace down
tray paper
full sensor
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							2F8/2F9/2GA-1
2-1-14
2-1-9  Duplex conveying section
(1) Duplex conveying section
Figure 2-1-21Duplex conveying section
Figure 2-1-22Duplex conveying section block diagram
 

 





(1) DU roller
(2) DU feed pulley
(3) DU base
(4) DU lower guide
(5) DU roller
(6) Duplex jam sensor (actuator)
(7) Feed upper guide
YC8-2 Engine PWBDUDRNDuplex
clutch*
*: 35/37 and 45/47 ppm printer (EUR/USA model) only. Connect-R PWB
Duplex jam
sensor
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							2F8/2F9/2GA-2
2-2-1
2-2 Electrical Parts Layout2-2-1  Electrical parts layout
(1) Electrical parts layout
Figure 2-2-1 Electrical parts layout (30/31 ppm printer [EUR/USA model])





Developer unitDrum unit
Fuser unit

 






 
 
 


 











30/31 ppm printer
(EUR/USA model)




           





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							2F8/2F9/2GA-2
2-2-2Figure 2-2-2Electrical parts layout (35/37 and 45/47 ppm printer [EUR/USA model])

 





 

 
 
 
  

 





 


 


 

Fuser unit
	




 






 
 
 



 













 






Drum unit
Developer unit



35/37 ppm printer
(EUR/USA model)
45/47 ppm printer
(EUR/USA model)

 



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							2F8/2F9/2GA-1
2-2-3 1. Main PWB .................................................... Controls the software such as the print data processing and provides the 
interface with computers.
2. Engine PWB................................................. Controls printer hardware such as high voltage/bias output control, paper 
conveying system control, and fuser temperature control, etc.
3. Operation panel PWB .................................. Indicates the LCD message display and LED indicators. Controls key 
inputs.
4. Connect-R PWB........................................... Interconnects the engine PWB and the electrical parts.
5. Connect-L PWB ........................................... Interconnects the engine PWB and the electrical parts.
6. Drum PWB ................................................... Relays wirings from electrical components on the drum unit. Drum indi-
vidual information in EEPROM storage.
7. Developer PWB ........................................... Relays wirings from electrical components on the developer unit.
8. APC PWB 1 ................................................. Generates and controls the laser beam.
9. APC PWB 2*
1.............................................. Generates and controls the laser beam.
10. PD PWB ....................................................... Controls horizontal synchronizing timing of laser beam.
11. Eraser lamp PWB ........................................ Eliminates the residual electrostatic charge on the drum.
12. Waste toner sensor PWB ............................. Detects the waste toner box being full.
13. Power source unit ........................................ Generates 24 V DC and 5 V DC power source. Controls the fuser heater 
lamp.
14. Power switch ................................................ Turns ON/OFF the AC power source.
15. Interlock switch 1 ......................................... Shuts off 24 V DC power line when the top cover is opened.
16. Interlock switch 2 ......................................... Shuts off 24 V DC power line when the left side cover is opened.
17. Cassette size switch .................................... Detects the paper size dial setting of the paper setting dial.
18. Registration sensor ...................................... Detects the timing of primary feeding.
19. Paper gauge sensor 1.................................. Detects the paper remaining amount level.
20. Paper gauge sensor 2.................................. Detects the paper remaining amount level.
21. Duplex jam sensor ....................................... Detects paper jam in the duplex conveying section.
22. MP tray paper feed sensor........................... Detects paper on the MP tray.
23. Face down tray paper full sensor ................. Detects whether the face down tray is full.
24. Paper exit sensor ......................................... Detects paper jam in the fuser unit.
25. Duplex sensor*
2........................................... Detects paper jam in the rear unit.
26. Temperature/humidity sensor....................... Detects the ambient temperature and absolute humidity.
27. Lift sensor .................................................... Detects activation of upper limit of the bottom plate in the paper cassette. 
(35/45 ppm model only)
28. Envelope feeder detection switch ................ Detects optional envelope feeder.
29. Toner sensor ................................................ Detects the toner in the toner container.
30. Fuser thermistor S ....................................... Measures the heat roller temperature.
31. Fuser thermistor M ....................................... Measures the heat roller temperature.
32. Main motor ................................................... Drives the paper feed/conveying section and fuser unit.
33. Drum motor .................................................. Drives the drum unit and developer unit.
34. Toner motor .................................................. Replenishes the developer with toner.
35. Switchback motor......................................... Drives paper exit (switchback) section.
36. Lift motor*
2................................................... Operates the bottom plate in the paper cassette. 
37. Polygon motor .............................................. Drives the polygon mirror.
38. Right fan motor ............................................ Cools the interior of machine.
39. Left fan motor ............................................... Cools the interior of machine.
40. PSU fan motor ............................................. Cools the power source unit.
41. CPU fan motor*
2.......................................... Cools the main PWB (CPU). 
42. Feed fan motor............................................. Cools the paper feed conveying section and duplex conveying section.
43. Registration clutch ....................................... Controls the secondary paper feed.
44. Paper feed clutch ......................................... Controls the paper cassette paper feed.
45. Middle feed clutch ........................................ Controls the paper conveying at the conveying section.
46. Duplex clutch*
2............................................ Controls the paper conveying at the duplex conveying section.
47. Developer solenoid ...................................... Controls the developer unit drive.
48. MP tray paper feed solenoid ........................ Controls the primary paper feed from the MP tray.
49. Face up/down solenoid*
2............................. Switches the output stack between face up and face down.
50. Fuser heater lamp ........................................ Heats the heat roller.
*
1: 45/47 ppm printer (EUR/USA model) only, *2: 35/37 and 45/47 ppm printer (EUR/USA model) only
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							2F8/2F9/2GA-2
2-2-4 51. Thermal cutout ............................................. Shuts off the power source to the fuser heater lamp when the heat roller 
reaches extremely high temperature.
52. AC inlet ........................................................ Connects the AC power source.
53. Fuser unit switch .......................................... Detects open/close rear unit (fuser unit).
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							2F8/2F9/2GA
2-3-1
2-3 Operation of the PWBs2-3-1  Power source unit
Figure 2-3-1Power source unit block diagram
Switching
regulator
circuit Zero cross
signal circuitMP tray paper
feed sensor Power source unit
Connect-L
PWB+5V1 SWSLEEPNAC input
+24V1
+24V2
+24V3 HANDSN
ZCROSS
HEATONN1 Interlock
switch 1Interlock
switch 2 Power switch
Fuser heater
lamp control
circuit Fuser
heater
lamp
PC1TRA51
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							2F8/2F9/2GA
2-3-2Figure 2-3-2Power source unit silk-screen diagram
Connector Pin No. Signal I/O Voltage Description
YC101 1 LIVE I 120 V AC AC power input
Connected 
to the AC 
inlet220 - 240 V AC
2 N.C. - - Not used
3 NEUTRAL I 120 V AC AC power input
220 - 240 V AC
YC102 1 COMMON1 O 120 V AC Fuser heater lamp
Connected 
to the heater 
lamp220 - 240 V AC
2 N.C. - - Not used
3 LIVE O 120 V AC
220 - 240 V AC
YC103 1 +24V2 O 24 V DC 24 V DC power source (via interlock switch 1)
Connected 
to the con-
nect-L PWB2 +24V2 O 24 V DC 24 V DC power source (via interlock switch 1)
3 GND - - Ground
4 GND - - Ground
5 GND - - Ground
6 GND - - Ground
7 +24V3 I 24 V DC 24 V DC power input (via interlock switch 1 and 2)
8 SWSLEEPN I 0/5 V DC Sleep mode: On/Off
9 ZCROSS O 0/5 V DC (pulse) Zero cross signal
10 HEATONN1 I 0/24 V DC Fuser heater lamp: On/Off
11 HEATONN2 I Not used
12 HANDSN O 0/5 V DC MP paper feed sensor: On/Off
13 N.C. - - Not used
14 +24V1 I 24 V DC 24 V DC power source
15 +5V1 O 5 V DC 5 V DC power source
16 +5V1 O 5 V DC 5 V DC power source
17 +5V1 O 5 V DC 5 V DC power source
YC101
YC102
1
1
YC1031
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