Service manual

Page 3-4

Section 3. Interface Specifications

SATO M-8485Se Standard Print Engine

Service Manual

PN 9001080

Rev. A

3.4 IEEE 1284 Parallel Interface

The parallel interface for the M-8485Se printer is a Plug-In Interface Module that can

be installed by the user. It conforms to the IEEE 1284 specification. It will

automatically detect the IEEE 1284 signals and operate in the high speed mode. If it

does not detect the IEEE 1284 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 IEEE 1284 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 Connection AMP 57-40360 (DDK) or equivalent

Cable Connection AMP 57-30360 (DDK) or equivalent

Cable IEEE1284 Parallel, 10 ft. (3 m) or less

Signal Level High = +2.4V to +5.0V

Low = 0V to -0.4V

Data Streams:

<ESC>A .. Job#1 .. <ESC>Z<ESC>A .. Job#n .. <ESC>Z

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 online. The

printer will also be busy if taken offline from the front panel.

1MB 2.95MB

Buffer Available

DTR High

X-On

DTR Low

X-Off

The Receive Buffer