4.19 Paper sensor, replacing
This printer has a sensor to detect if paper is present in the printer.
This sensor is situated on the paper guide where the paper enters the printer.
The sensor is an infrared, refl ective type, and it functions like this: A little infrared lamp is sending ligth
downward. If there is paper present, the ligth will be refl ected back, and detected by a photo transistor.
If the sensor is defective, it must be replaced. It can be done like this:
Take the paper guide out of the printer. Unscrew fi rst the screws (A), then (B) and then (C). Now the
sensor is loose. The assembly is done in reverse order.
A
A
B
C
C
Paper sensor
BRAILLO
●
NORWAY AS
B 400 Series 3
66
Summary of Contents for 400 S 3 Series
Page 1: ...User s Guide BRAILLO NORWAY BRAILLO 400 S Series 3 Rev September 2005...
Page 2: ...September 2005 2005 Braillo Norway AS...
Page 76: ...Frame exploded view BRAILLO NORWAY AS B 400 Series 3 76...
Page 77: ...BRAILLO NORWAY AS B 400 Series 3 77 Paper guides...
Page 80: ...Electric unit schematics BRAILLO NORWAY AS B 400 Series 3 80...
