protech PA-6722, Manual

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The printer information transmitted is comprised of 4 bytes as follows:
First byte(printer information)
Bit Off/On Hex Decimal Function
7 Off 00 0 Not used. Fixed to Off
6
Off 00 0
Paper is not being fed by
the paper feed button
On 40 64
Paper is being fed by the
paper feed button
5
Off 00 0 Cover is close
On 20 32 Cover is open
4 On 10 16 Not used. Fixed to On
3
Off 00 0 On-line
On 08 8 Off-line
2
Off 00 0 Drawer kick-out connector pin 3 is LOW
On 04 4 Drawer kick-out connector pin 3 is HIGH
1 Off 00 0 Not used. Fixed to Off
0 Off 00 0 Not used. Fixed to Off
Second byte(printer information)
Bit Off/On Hex Decimal Function
7 Off 00 0 Not used. Fixed to Off
6 Off 00 0 Not used. Fixed to Off
5 Off 00 0 Not used. Fixed to Off
4 Off 00 0 Not used. Fixed to Off
3 On 08 8 Not used. Fixed to Off
2 On 04 4 Not used. Fixed to Off
1 On 02 2 Not used. Fixed to Off
0 On 01 1 Not used. Fixed to Off
Third byte (paper sensor information)
Bit Off/On Hex Decimal Function
7 Off 00 0 Not used. Fixed to Off
6 Off 00 0 Not used. Fixed to Off
5 Off 00 0 Not used. Fixed to Off
4 On 00 0 Not used. Fixed to Off
2,3 Off 00 0 Paper end sensor: paper present
On 0C 12 Paper end sensor: no paper present
0,1 Off 00 0 Paper near end sensor: paper adequate
On 03 3 Paper near end sensor: paper near end
Fourth byte (paper sensor information)
Bit Off/On Hex Decimal Function
7 Off 00 0 Not used. Fixed to Off
6 Off 00 0 Black mark sensor status
5 Off 00 0 Not used. Fixed to Off
4 Off 00 0 Not used. Fixed to Off
3 On 08 8 Not used. Fixed to On
2 On 04 4 Not used. Fixed to On
1 On 02 2 Not used. Fixed to On
0 On 01 1 Not used. Fixed to On
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