Unless noted otherwise, the communication parameters in this section apply to
SureMark printers that attach to a POS system with an RS-232 (EIA232) cable
connection.

If you use the RS-485 or USB communications interface, refer to either the
SureMark driver documentation in the appropriate IBM book for your operating
system (see Table 2) or, when using OPOS drivers, to the OLE for Retail POS
Application Programming Guide.

Table 2. Driver documentation by operating system

Operating System

IBM Publication

4690 OS Version 1 and
Version 2

IBM 4690 OS API Specification for IBM 4610 Printers

DOS

IBM Point-of-Sale Subsystem for DOS Programming
Reference

OS/2, Windows NT,
Windows 95, and Windows
3.1x

IBM Point-of-Sale Subsystem Programming Reference and
User's Guide

The 4690 OS manual is available on the current maintenance diskette for the IBM
4690 operating system. Current versions of all publications are available on the RSS
web site.

RS-232 serial parameter

Protocol DTR/DSR mode or XON/XOFF mode

Baud Rate 9600, 19200, 115200

Start 1 bit Data 8 bits Parity None Stop 1 bit

RS-232 commands summary by function

The commands listed in Table 3 are described in detail in the following sections.

Table 3. RS-232 commands organized by function

Description

Command

Page

System Commands

EC/Request/Real-time status
request

DLE ENQ 4 or X'100534' Immediate or X'1B008000' Buffered

Enable/disable the feed buttons

ESC c 5 n X'1B6335;n'

52.

Extended address command
(request printer ID)

GS | SOH or X'1D4901' This is an IMMEDIATE command.

Re-initialize the printer

ESC @ or X'1B40'.

Reset printer

DLE ENQ @ or X'100540'

Status request

ESC v or X'1B76'

SureMark 4610 Printers : Programming Guide for Models 1xR and 2xR