Asynchronous Terminals and Printer Processes Programming Manual

PRINTER PROGRAMMING CONSIDERATIONS
Error Handling
Table 7-2. 5520 Errors (continued)
Error Error
Number Name Meaning
_______________________________________________________________
120 DATA PARITY Nonrecoverable data parity error.
ERROR For details, see "DATA PARITY
ERROR Recovery" below.
121 DATA OVERRUN Buffer overflowed while data was
being sent to the printer because
of a hardware or microcode
problem.
139 CONTROLLER ERROR 1. Parity occurred on status |
returned on the asynchronous |
controller, or |
2. Character overrun occurred on |
the asynchronous controller or, |
3. Invalid interrupt status was |
returned on the asynchronous |
controller. |
|
140 MODEM ERROR 1. Communication link was not |
established, or |
2. Modem failure occurred, or |
3. Momentary loss of carrier |
occurred, or |
4. Modem disconnect occurred, or |
5. Link disconnect occurred. |
|
190 DEVICE ERROR 1. Invalid status returned from
printer, or
2. Buffer full status lasted too
long, or
3. No shuttle motion, or
4. Character generator absent, or
5. VFU fault, which is not
recoverable, or
6. VFU channel error.
191 DEVICE POWER ON The printer powered on while
the file was open. See "DEVICE
POWER ON Error" below.
218 INTERRUPT TIMEOUT Write request timed out waiting |
for a completion interrupt. |
November 1987 7-13