●Communication Buffer 5-67
5.9.4 Errors
(1) Errors during external communications
Errors during print content transmission and print data call-up
No. Condition Type of error
1
Not all received print contents could be held in buffer because
its capacity was exceeded
NAK is returned.
However, this will not cause any
external communication error.
2 Number of print items of received contents is more than 9. External communication error 030
3
Calendar or count character was included in print data call-up
transmission
External communication error 027
Error when buffer is cleared
No. Condition Type of error
1 Text was transmitted together with another text External communication error 002
(2) Errors during printing
Errors during printing
No. Condition Type of error
1
The number of received contents in buffer was less than "Data
number at Fault".
Fault "Communication Buffer
Fault"
2
Print start signal was received during print data switching
immediately after ACK was returned to "restart printing"
Fault
"Invalid Data Change Timing"
● When "communication buffer fault" occurs, the window will be cleared, followed by standby
status.
(3) Error when status is changed
Error when status is changed
No. Condition Type of error
1
Calendar characters or count characters were included to
existing print contents when restored to online.
Confirmation message
"Communication buffer error"
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