Epson tmu375 User Manual - Page 65

Transmit Status Identification, movement

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1. When printing on a single cut sheet that is narrower than the carriage movement range, once the printer has been put in the cut sheet mode and the sheet of paper has been inserted, the following operations should be avoided: turning the power supply switch on or off, opening the cover, issuing the return home command (ESC), or sending a reset command through the interface. When the carriage moves away from the home position, it may come in contact with the left end of the paper, causing a paper jam. 2. The cut sheet waiting state can be canceled by the DLE ENQ 3 command. 3. Use the ASB function to correctly determine the paper state. See Example Print Control for Cut Sheet later in this section. Transmit Status Identification The values of specific bits are fixed in the status information transmitted by the printer, so that the status bytes of commands can be identified. The user can therefore confirm the command to which the status belongs, as shown in the following table. When using Auto Status Back (ASB), however, process the consecutive three-byte code (except for XOFF) as ASB data after confirming the first byte of the ASB. Otherwise, the status transmitted by using the command and the status of the second and following bytes of the ASB cannot be differentiated. Command ESC u ESC v GSI GS r XON XOFF DEL EOT ASB (1st byte) ASB (2nd byte-4th byte) Status Replay B B B B B B B B B Reference Information 4-11

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1.
When
printing on a single cut
sheet
that
is narrower
than
the
carriage
movement
range, once
the
printer
has
been put in
the
cut
sheet
mode and
the
sheet
of
paper
has
been inserted,
the
following operations
should
be avoided: turning
the
power
supply
switch
on or
off,
opening
the
cover, issuing
the
return
home
command
(ESC),
or sending a reset command
through
the
interface.
When
the
carriage moves away
from
the
home
position, it may
come in contact
with
the
left
end of
the
paper, causing a paper
jam.
2.
The
cut
sheet
waiting state can be canceled by
the
DLE
ENQ
3
command.
3.
Use
the
ASB function to correctly determine
the
paper state. See
Example Print Control for Cut
Sheet
later in
this
section.
Transmit Status
Identification
The values of specific bits are fixed in the status information transmitted
by the printer, so that the status bytes of commands can be identified. The
user can therefore confirm the command to which the status belongs, as
shown in the following table.
When using Auto Status Back (ASB), however, process the consecutive
three-byte code (except for XOFF) as
ASB
data after confirming the first
byte of the
ASB.
Otherwise, the status transmitted by using the command
and the status of the second and following bytes of the
ASB
cannot be
differentiated.
Command
Status Replay
ESC
u
<O**O****>B
ESC
v
<O**O****>B
GSI
<O**O****>B
GS r
<O**O****>B
XON
<00010001>B
XOFF
<0001001
I>B
DEL EOT
<O**l**lO>B
ASB
(1st byte)
<0**
1
**OO>B
ASB (2nd
byte-4th byte)
<O**O****>B
Reference Information 4-11