General Description
Laser 1000/1500 Service Manual
Table 1-13.
Interface Pin Assignment (Continued)
No.
36
Signal Name
IN
Description
If the
signal is LOW when the printer is turned on or
initialized, the printer enters the
state. In this state,
and
control codes are ignored. If the
signal is HIGH when the printer is turned on or initialized, the
select/deselect control by
is valid. If the printer
receives a
code, any subsequent data
be thrown out
until a
code is received. Handshaking with the BUSY or
ACKNLG
however, is
for data during this
time. It is possible to disable
signal with
and keep the printer constantly in the selected state. In GQ
mode (option) or
mode, this
affects the
or
operation according to
settings. In HP Mode
this signal always ignored.
1.3.2 Serial Interface (Except
for the ActionLaser 1000)
Type:
RS-232C
Transfer system:
duplex
Synchronization:
Asynchronous start-stop system
Start-bit:
1
Stop-bit:
1 or 2
Data length:
7 bits or 8 bits
Parity:
Odd, even, or none
Protocol:
X-ON/X-OFF (can be combined with
control)
control (can be combined with X-ON/X-OFF)
Transfer speed:
300,600,1200,2400,4800, 9600,19200, or 38400 bps
Error:
Overrun error:
Processed as missing data and replaced by “*”
Parity
error:
Replaced by “*”
Framing error:
Replaced by “*”
Breaking character:
Ignored
Signal description:
See Table 1-14.
Table 1-14. Serial Interface Connector Pin Assignments
2
3
4
5
Signal Name
-
OUT
1
IN
Description
Connected to the printer chassis. The printer chassis
and the signal
are connected to each other.
Serial ASCII data outputted by the printer. It maintains
“MARK” state (LOW
between transmitted character
codes. Logic O is at HIGH level (“SPACE”) and logic 1 is at
LOW level (“MARK”).
data inputted to the printer. it maintains “MARK”
state (LOW level) between received character codes.
Transmission request signal outputted from the printer. It is
always at HiGH level during power ON.
Response signal to the
signal inputted to the printer.
The printer transmits the data through TXD while
is
HIGH. can be fixed HIGH through
When the
setting for
is ON, X-ON/X-OFF will
not be transmitted if
is LOW.
1-16
Rev. A
