Ricoh A250 Service Manual page 542

SERVICE RAM ADDRESSES
69E134 to 69E813(H) - Latest 20 error communication records (Read only)
One error communication record consists of 88 bytes. The format is as follows:
1st byte - Header
Bit 0: Communication result
Bit 1: Document jam
Bit 2: Power down
Bit 3: Not used
Bit 4: Technical data printout instead of personal codes
Bit 5: Type of technical data
Bit 6: Error report
Bit 7: Data validity
2nd byte - Not used
3rd to 6th bytes - Date and time when the communication started
3rd byte - Month (BCD)
4th byte - Day (BCD)
5th byte - Hour (BCD)
6th byte - Minute (BCD)
7th and 8th bytes - Communication time
7th byte - Minutes (BCD)
8th byte - Seconds (BCD)
9th and 10th bytes - Number of pages transmitted or received
9th byte - Low byte (Hex)
10th byte - High byte (Hex)
11th and 12th bytes - Personal code or number of total/burst error lines
If bit 4 of the 1st byte is 0:
11th byte - Personal code (low - BCD)
12th byte - Personal code (high - BCD)
If bit 4 of the 1st byte is 1:
11th byte - Number of total error lines (Hex)
12th byte - Number of burst error lines (Hex)
13th byte - File number (low - Hex)
14th byte - File number (high - Hex)
15th and 16th bytes - Rx level or a measure of the error rate
If bit 5 of the 1st byte is 0:
15th byte - Rx level (low - Hex)
16th byte - Rx level (high - Hex)
If bit 4 of the 1st byte is 1:
15th byte - Measure of error rate (low - Hex)
16th byte - Measure of error rate (high - Hex)
A250
0: OK, 1: NG
1: Occurred
1: Occurred
0: Rx level, 1: Measure of error rate
0: Not printed, 1: Printed
0: Not valid, 1: Valid
4-80
0: No, 1: Yes
SM