SATO M8485S Operator's Manual download pdf (Page 161)

SECTION 6.

INTERFACE SPECIFICATIONS

INTRODUCTION

This section presents the interface specifications for the “S” printers. These

specifications include detailed information on how to properly interface your printer

with your host system.

The following information is presented in this section:

• Interface Types

• Using the Receive Buffer

• RS32C Serial Interface

General Specifications

Electrical Specifications

Pin Assignments

Ready/Busy Flow Control

X-On/X-Off Flow Control

Bi-Directional Communications Protocol

• Centronics Parallel Interface

• Accessory (EXT) Connector

INTERFACE TYPES

In order to provide flexibility in communicating with a variety of host computer

systems, the printers come standard with two interface types. The Centronics Parallel

interface will probably be the most useful in communicating with IBM PCs and

compatibles. The RS232C Serial interface allows connectivity to a number of other

hosts. For instructions on how to properly configure your printer for either of these

interface types, see the Printer Configuration instructions in Section 2 of this manual.

NOTE: Both the Centronics and RS232C interfaces are active at the same time, i.e.

data can be received on either one, however no provision is made for port

contention. If data is transmitted to both ports simultaneously, it will cause the data

in the receive buffer to be corrupted.

THE RECEIVE BUFFER

The “S” printers have the ability to receive a data stream from the host in one of two

ways. The receive buffer may be configured to accept one print job at a time or

multiple print jobs. The single job print buffer is generally used by software programs

that wish to maintain control of the job print queue so that it can move a high priority

job in front of ones of lesser importance. The multiple job buffer, on the other hand,

prints all jobs in the order they are received by the printer, and the order of printing

cannot be changed.

SATO “S” Print Engines 9001034 Rev E Page 6-1

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SATO M8485S Operator's Manual Page 161