C O N F I D E N T I A L
Paper roll
Miscellaneous commands DLE ENQ
Ver. 4.0
p. 1295
■
With a parallel interface model, this command is not executed in the
following statuses, because the printer is busy and unable to receive data
from the host computer. The DIP switch (BUSY condition) is different, depending on the
printer model.
•
Receive buffer is full when DIP switch is set to On.
•
Printer is off-line or receive buffer is full when DIP switch is set to Off.
■
When a recoverable error occurs, after removing a cause of the error, the printer can
recover from the error by transmitting
DLE ENQ 1
or
DLE ENQ 2
without turning off the
power.
■
DLE ENQ 1
or
DLE ENQ 2
is enabled only when a recoverable error occurs with the
exception of an automatically recovered error, and is ignored in other cases. Errors
recoverable by
DLE ENQ 1
or
DLE ENQ 2
depend on the printer model.
■
DLE ENQ 1
or
DLE ENQ 2
is also executed to recover from a recoverable error when the
printer is disabled by
ESC =.
■
In page mode, if the printer recovers from a recoverable error by using
DLE ENQ 2
, the
printer returns to standard mode after clearing the data in receive and print buffers and
changing the values set by
ESC W
to the default values.
■
DLE ENQ 0
is enabled only when the printer stops printing due to a paper-end and waits
for on-line recovery (from the time when a paper roll is inserted to the time when the
printer goes on-line).
■
The on-line recovery waiting status can be confirmed by
DLE EOT
.
[Model-dependent variations]