Service manual

Page 3-1
PN 9001080
Rev. A
SATO M-8485Se Standard Print Engine
Service Manual
Interface Specifications
3.1 Overview
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Section
The parallel interface for the M-8485Se Printer is a high speed, bi-directional parallel
interface that conforms to the IEEE 1284 specification. (ECP mode on some computers).
The interface is also compatible with the older Centronics parallel interface standard. If
it does not detect the correct IEEE 1284 signals in the interface connection, it will
automatically operate in the standard Centronics mode which is much slower. To use
the IEEE 1284 parallel interface to its fullest capability requires that the host also have
an IEEE 1284 compatible interface and that the two be connected with a cable that
meets the IEEE 1284 specification. If either of these two are not present, the data rate is
severely compromised.
3.2 Interface Types
This section presents the interface specifications for the M-8485Se printer.
These specifications include detailed information on how to properly
interface your printer with your host system.
M-8485Se printers utilize a Plug-In Interface Module for maximum printer
configuration flexibility.
The following information is presented in this section.
 Interface Types
 The Receive Buffer
 IEEE1284 Parallel Interface (Standard with unit)
 Optional RS232C Serial Interface
General Specifications
Electrical Specifications
Pin Assignments
Ready/Busy Flow Control
X-On/X-Off Flow Control
 Optional Universal Serial BUS (USB)
 Optional Local Area Network (LAN)
 BI-Directional Communications
 Ext Connector