Sensor

| Name | Function | Type |
|---|---|---|
| Document Width Detector (x2) (A) | Detects size and orientation of the document. |
Transmission type photo interrupter |
| Document Length Detector (x2) (B) | Reflective type photo interrupter |
|
ADF Document Sensor (C) |
Detects whether or not a document is placed on the ADF document support. |
Reflective type photo interrupter |
Release Sensor (D) |
Detects whether or not the Pickup Roller is at its home position (ready for loading documents). |
Transmission type photo interrupter |
Set Guide Sensor (E) |
Detects whether or not the Stopper is at its home position (ready for loading documents). |
Transmission type photo interrupter |
| Document Distance Sensor (F) | At the position where a document passes immediately after it passed through the Separation Roller, the sensor detects whether or not a document exists and when to move the Pickup Roller up. |
Analog sensor |
| Post-Acceleration Roller Document Detector (G) | Detects whether document exists or not immediately after the Acceleration Roller. |
Transmission type photo interrupter |
| Resist Sensor (H) | Detects whether document exists or not immediately after the Resist Roller. |
Reflective type photo interrupter |
| PE 1 Sensor (I) | Detects whether document exists or not immediately before starting scanning of the face side. |
Reflective type photo interrupter |
| PE 2 Sensor (J) | Detects whether document exists or not immediately before starting scanning of the reverse side. |
Reflective type photo interrupter |
| Paper Eject Sensor (K) | Detects whether document exists or not near the Document Ejection Roller. |
Transmission type photo interrupter |
| ADF Cover Open Sensor (L) | Detects whether or not ADF Paper Feeder Unit is opened. |
Transmission type photo interrupter |