This appendix applies only to SureMark printers that attach to a POS system with

an RS-232 cable connection.

If you use the RS-485 or USB interfaces, refer to 4610 driver documentation in the

appropriate book for your operating system:

Operating System IBM Publication
4690 OS Version2 DBCS IBM 4690 OSAPI 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
Users Guide

The 4690 OS manual is available on the current maintenance diskette for the IBM

4690 Operating System. Current versions of all three manuals are available on the

Internet. See Resources on the Interneton page 43 for more information.

RS-232 Commands Summary by Function
Table12. RS-232 Commands Organized by Function
Description Command Page
System Commands
Exercise Program ESC x or X'1B78' 107
Status request ESC v or X'1B76' 107
Extended address command-request
printer ID
GS | SOH or X'1D49;01' This is an IMMEDIATEcommand. 107
Verifyprevious commands completed X'1B;00;80;00' 107
Preset or Onetime-Set Commands
Download graphics (logo) commands GS* logo_num n1 n2 data or X'1D2A';logo_num;n1;n2;data 109
Predefine messages GS : message_num data GS : or
X'1D3A;message_num;data;'X'1D3A'
111
Download user-defined characters ESC & snmdataor X'1B26;s;n;m;data' 112
Thermal code page MCT commands 113
Proportional font ESC & snmdataor X'1B;26;s;n;m;data' 114
Impact code page MCT commands 116
Download double-byte characters ESC ( s n data or X'1B28;s;n;data' 117
Flash storage write ESC n1 n2 data or X'1B27;n1;n2;data' 121
Erase flash EPROM sector ESC # nor X'1B23;n' 121
Send checksum of flash EPROM sector ESC nor X'1B22;n' 122
Microcode tolerance (MCT) information
- loading
ESC M nhlor X'1B4D;n'. 122
Microcode tolerance (MCT) information
- request
ESC S nor X'1B53;n' 123
DBCS address vectors ESC S nor X'1B53;n' 125
Setup Commands
Set print mode ESC ! nor X'1B21;n' 125
updated March 18, 2002
100 SureMark DBCS Users Guide