HP FAX-750 Service Manual - Page 157

Definition of Error Codes on the Communications List, Calling, Command reception

Page 157 highlights

n Definition of Error Codes on the Communications List (1) Calling Code 1 10 11 11 11 11 11 11 11 Code 2 08 01 02 03 05 06 07 10 Causes Wrong number called. No dial tone detected before start of dialing. Busy tone detected before dialing. 2nd dial tone not detected. No loop current detected.* Busy tone detected after dialing or called. No response from the remote station in sending. No tone detected after dialing. 17 07 No response from the calling station in receiving. * Available in Germany and Austria only. (2) Command reception Code 1 20 20 20 20 20 20 20 20 20 Code 2 01 02 03 04 05 06 07 08 09 20 0A 20 0B 20 0C Causes Unable to detect a flag field. Carrier was OFF for 200 ms or longer. Abort detected ("1" in succession for 7 bits or more). Overrun detected. A frame for 3 seconds or more received. CRC error in answerback. Undefined command received. Invalid command received. Command ignored once for document setting or for dumping-out at turn-around transmission. T5 time-out error CRP received. EOR and NULL received. VI - 6

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VI
- 6
n
Definition of Error Codes on the Communications List
(1)
Calling
Code 1
Code 2
Causes
10
08
Wrong number called.
11
01
No dial tone detected before start of dialing.
11
02
Busy tone detected before dialing.
11
03
2nd dial tone not detected.
11
05
No loop current detected.*
11
06
Busy tone detected after dialing or called.
11
07
No response from the remote station in sending.
11
10
No tone detected after dialing.
17
07
No response from the calling station in receiving.
* Available in Germany and Austria only.
(2)
Command reception
Code 1
Code 2
Causes
20
01
Unable to detect a flag field.
20
02
Carrier was OFF for 200 ms or longer.
20
03
Abort detected ("1" in succession for 7 bits or more).
20
04
Overrun detected.
20
05
A frame for 3 seconds or more received.
20
06
CRC error in answerback.
20
07
Undefined command received.
20
08
Invalid command received.
20
09
Command ignored once for document setting or for dumping-out
at turn-around transmission.
20
0A
T5 time-out error
20
0B
CRP received.
20
0C
EOR and NULL received.