Paper Near-End Sensor Connector (Cn6) *Option; Pin Description; Reference Schematic Diagram - Citizen BD2-1220 User Manual

3.6 Paper Near-End Sensor Connector (CN6) * Option

3.6.1 Pin Description

Pin No.
1
2
3
Connectors: 5267-03A-X (Molex)
By default, pin 2 is tied to pin 3 with jumper J11 to deactivate the paper sensor (paper always
remains). If you need the Paper Near-End sensor function, obtain the connector above.

3.6.2 Reference Schematic Diagram

* The schematic diagram above is for a reflective photointerruptor. In this case the gap between the
sensor and paper surface should be approx. 1 mm. The electrical characteristics of the paper sensor
differ from one sensor model to another. Carefully study the specifications for the sensor you use.
* The control board has the following sensing threshold voltages (across pins 2 and 3):
0 to 0.4 V: Paper exists.
1 V or above: Paper end.
Paper sense status can not be guaranteed at any other voltage.
Signal Name Input/Output
PNE-A
PNE-C
GND
When Using a Photointerruptor
Vdd Vdd
330
68k
100
1000pF
33k
Control Board
When Using a Switch
NC
1
2
SW
3
Output Photointerruptor's anode
Input Photointerruptor's collector
— Photointerruptor's cathode and emitter
1
2
3
Photointerruptor
Sensor
9
BD2-1220/1221 User's Manual
Function
(GP2S24)
Paper
1 mm