SATO M-8485Se - IEEE1284 Parallel Interface; Electrical Specifications

Section 6. Interface Specifications
will go “low” (or an
X
-Off is sent) indicating the printer can no longer receive data.
This condition is called “Buffe
r
Nea
r
Full.”
0 B
2.0 MB 2.95 MB
DTR High
or
X-On
DTR Low
Buffer Near Full
X-Off
The receiving buffer will not be able to receive more data again until a “Buffer
Available” condition occurs. This takes place when the receiving buffer has emptied so
that only 1 M B bytes of data are being held (2.0 MB bytes from being full). At this
time, DTR will go “high” or an X-On is sent to tell the host that it can again receive
data.
0 B
1 MB
2.95 MB
DTR Low
or
X-Off
Buffer
A
vailable
DTR High
or
X-On
All printer error conditions (i.e., label out, ribbon out) will cause the printer to go
busy ( DTR “low” or X-Off ) until the problem is corrected and the printer is placed
on-line. The
p
rinte
r
will also be bus
y
if taken off-line from the front
p
anel.
IEEE1284 PARALLEL INTERFACE
The parallel interface for the “Se” printers is a Plug-In Interface Module that can be
installed by the user. It conforms to the IEEE1284 specification. It will automatically
detect the IEEE1284 signals and operate in the high speed mode. If it does not detect
the IEEE1284 signals, it will operate in the standard Centronics mode, which is
significantly slower. For this reason, an interface cable and host interface conforming to
the IEEE1284 specification must be present to fully utilize the speed capabilities. This
interface also operates bi-directionally and can report the status of the printer back to
the host.
ELECTRICAL SPECIFICATIONS
Printer Connector AMP 57-40360
(
DDK
)
or e
q
uivalent
Cable Connector AMP 57-30360
(
DD
K
)
or e
q
uivalent
SATO “Se” Print En
g
ines Pa
g
e 6-3