Service manual

AR-M351U/M451U, AR-M355U/M455U EXTERNAL VIEWS AND INTERNAL STRUCTURES 5 - 6

6. Switch, Sensor

A. Scanner unit

B. Engine

Code Name Active condition

1 SPPD SPF original resist front sensor

2 SCOV SPF paper feed cover sensor

3 SPED SPF original set sensor

4 OCSW OC open/close sensor

5 ORS-LED Original size sensor PWB (Light emitting side)

6 SPLS1 SPF original length sensor 1

7 SPLS2 SPF original length sensor

8 SPFVR SPF original width detection volume PWB

9 ORS-PD Original size sensor PWB (Light receiving side)

10 SOCD SPF open/close sensor

11 SPOD SPF original exit sensor

12 MHPS Mirror home position sensor

Code Function/Operation Active condition

1 DSW-F Front door open/close detection H= Door open

2 DSW-L Left door open/close detection H=Door open

3 POD1 Paper exit detection L= Paper detection

4 POD2 Paper exit detection L= Paper detection

5 POD3 Paper exit detection Full L= Paper detection

6 PPD1 Paper transport detection L= Paper detection

7 TCS Toner concentration sensor

8 LUD Paper feed cassette upper limit detection H= Upper limit detection

9 PED Paper feed cassette paper empty detection L= Paper empty detection

10 MAIN SW Power switch

1.DSW-F

2.DSW-L

3.POD1

4.POD2

5.POD3

6.PPD1

7.TCS

8.LUD

9.PED

10.MAIN SW