IBM TF7, TG5, TI5, TM7 Appendix F. Emulation Support for Epson Single-Station Printer

Appendix F. Emulation Support for Epson Single-StationPrinter

Commands Supported in Emulation Mode ..............169

Commands with Limited Support in Emulation Mode ..........171

Commands Not Supported in Emulation Mode.............172

Connectivity Differences .....................172

The SureMark single-station printers in SBCS mode can emulate an Epson

single-station printer. Emulation mode provides full support for most Epson

commands. However, some commands are supported partially and a few

commands are not supported at all. This section describes the commands that have

each of the three levels of support and also lists the connectivity differences

between an Epson single-station printer and the SureMark single-station printers.

The commands listed in Table20 are supported in Epson emulation mode.

However, there will be some differences in the printed output, because of different

dot pitches in the print heads and the minimum distance that the paper feed motors

can move the paper. These differenceswill appear when there are a number of

printed lines, and the method of aligning the data is different.

Examples of the printed differences that might occur:

vLogos will appear smaller in emulation mode. The logo will still contain the same

number of dots in the width and height. However, because the SureMark print

head has a finer dot pitch, the logo will appear smaller. If text is aligned around

the logo, the text on receipts that are printed in emulation mode might not line up

the same as receipts that are printed on the Epson printer.

vIf one line is aligned using spaces and another line is aligned using the relative

position commands, the data might appear misaligned. The commands, such as

the relative position and margin commands, that use the minimum unit of motion

values are based on a fraction of an inch, which eliminates the differences in the

dot pitch. Tabsand spaces are subject to pitch differences.

Table20. Commands Supported in Epson Emulation Mode

Hex Command ASCII Command Description

9HT Tab

0A LF Line feed

0C FF Printand return to standard mode

0D CR Print and carriage return

1B 20 n ESC SP n Set right-side character spacing

1B 21 n ESC ! n Select print mode

1B 24 nL nH ESC $ nL nH Set absolute print position

1B 25 n ESC % n Selector cancel user-defined character

set

1B26yc1c2... ESC&yc1c2... Defineuser-defined characters

1B 2Am nL nH dl..k ESC * m nL nH dl...k Select bit-image mode

1B 32 ESC 2 Select default line spacing

updated March 18, 2002