Infrared Interface - Canon BJC-55 Service Bulletin

Part 2: Product Specifications

2.3.2 Infrared interface

1. IrDA Interface
1) Interface
IrDA Version 1.0 compatible
2) Optical specifications
Light generation
Wavelength:
Intensity:
Light angle:
Light interception
Wavelength:
Intensity:
Light angle:
3) Transfer speed
9600/19200/38400/57600/115200 bps
4) Communication method
Half duplex, start/stop system (bidirectional)
5) Communication distance
0 to 1 m
6) Maximum received data size
2048 byte/packet
7) Modulation method
3/16 RZI (Return to Zero Invert)
8) Received signal
5V
"0"
0V
Infrared pulse width
0.85 to 0.90 µm
40 to 500 mW/Sr
±15° to 30° (along optical axis)
0.85 to 0.90 µm
4µW/cm
Max ± 15° (along optical axis)
Transfer Speed Transfer Speed
Pwd
"0"
Pwd: 1.6µs to 3/16 transfer speed
Figure 2-15 IrDA Method
2 to 500 mW/cm 2
RZI signal
"1"
2-20
BJC-50
Pwd=3/16 transfer speed