2-1-6
1. MP paper sensor (MPPS) .
....................
Detects the presence of paper on the MP tray.
2. Lift sensor (LS) *2 .
................................
Detects the top limit of the bottom plate.
3. Registration sensor 2 (RS2) *2 .
............
Controls the secondary paper feed start timing.
4. Duplex sensor 1 (DUS1) *2.
..................
Detects a paper jam in the duplex section.
5. Eject sensor (ES) .
.................................
Detects a paper misfeed in the fuser or eject section.
6. Home position sensor (HPS) .
...............
Detects the ISU in the home position.
7. Toner sensor (TS) .
................................
Detects the amount of toner remaining in the toner container.
8. Waste toner sensor (WTS).
...................
Detects when the waste toner box is full.
9. Fuser thermistor1 (FTH1) .
....................
Detects the heat roller temperature (Edge).
10. Fuser thermistor2 (FTH2) .
....................
Detects the heat roller temperature (Center).
11. Power source switch (PSSW) .
..............
Change ON/OFF the power supply of a control PWB, an opera
tion PWB, etc.
12. Inter lock switch (ILSW) .
.......................
Detects the opening and closing of the top cover.
13. Rear cover switch (RCSW) *2.
..............
Detects the opening and closing of the rear cover.
Shuts off 24 V DC power line when the right cover is opened.
14. Paper full sensor (PFS).
........................
Detects the paper full in the main tray (Facedown).
15. Envelope sensor (ENVS) .
.....................
Detects the change state of pressure in fuser unit.
16. Cassette size switch (CSSW) .
..............
Detects the paper size dial setting of the paper setting dial.
17. DP original sensor (DPOS) .
..................
Detects the presence of an original.
18. DP registration sensor (DPRS) .
............
Detects the original conveying timing.
19. DP timing sensor (DPTS).
.....................
Detects the original scanning timing.
20. DP switchback sensor (DPSBS) .
..........
Detects the position of the shift guide.
21. DP open/close sensor (DPOCS).
..........
Detects the opening/closing of the DP.
List of correspondences of switch and sensor names
No.
Name used in service manual
Name used in parts list
Part.No.
1
MP paper sensor (MPPS)
SENSOR OPT.
303M894260
2
Lift sensor (LS) *2
SENSOR OPT.
303M894260
3
Registration sensor 2 (RS2) *2
SENSOR OPT.
-
4
Duplex sensor1 (DUS1) *2
SENSOR OPT.
303M894260
5
Eject sensor (ES)
SENSOR OPT.
(FK-3100(U)) *1
(FK-3100(E)) *1
(FK-3130(U)) *2
(FK-3130(E)) *2
-
(302MS93094)
(302MS93074)
(302LV93132)
(302LV93112)
6
Home position sensor (HPS)
SENSOR OPT.
303M894260
7
Toner sensor (TS)
P.W.BOARD ASSY TONER SENSOR
(DV-3100)
-
(302LV93080)
8
Waste toner sensor (WTS)
PARTS TONER FULL DETECT
ASSY SP
302LV94120
9
Fuser thermistor1 (FTH1)
THERMISTOR FUSER
(FK-3100(U)) *1
(FK-3100(E)) *1
(FK-3130(U)) *2
(FK-3130(E)) *2
-
(302MS93094)
(302MS93074)
(302LV93132)
(302LV93112)
Service Manual
Y116540
-5
Summary of Contents for d-Copia 4003MF
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