M-S Cash Drawer A794 用户手册

Chapter 6: Programming Information

A794 Owner’s Guide

December 1999

60

The following table details the list of commands whose behavior differs from the
A793 and the A794 because of the physical differences of a 6 dots/mm head (A793)
versus an 8 dots/mm head (A794).

15 n

Feed n Dot Rows

This command will move the paper on the receipt
in n/203 inch steps instead of n/152 inch steps.

16 n

Add n Extra Dot Rows

The dot rows will be measured in n/203 inches
versus n/152 inches.

1B 20 n

Set Right-Side Character
Spacing

This command sets the right side spacing to “n”
horizontal motion units. By default, these units
are in terms of 1/203 inches versus 1/152 inches.

1B 24 n1 n2

Set Absolute Starting
Position

For graphics commands, the position is scaled to
best match A793. In text mode, the equivalent
character position is calculated.

1B 26 s c1 c2 n1 d1...nn dn]

Define User-Defined
Character Set

Since the dots on the A794 printhead are smaller,
user defined characters that were used on the
previous printers will appear smaller on the A974
printer.

1B 2A m n1 n2 d1...dn

Select Bit Image Mode

In A793 Emulation Mode, graphics are scaled to
best match the size of the graphic in the A793
printer.

1B 33 n

Set Line Spacing

This command uses n in terms of n/360 inches.
Since the A793 had a fundamental step of 1/152
inch and the A794 has a fundamental step of
1/203 inch, the actual line spacing will not exactly
match the requested spacing.

1B 4A n

Print and Feed Paper

(Same as above)

1B 59 n1 n2 d1...dn

Select Double-Density
Graphics

In A793 Emulation Mode, the printer scales the
graphics to provide the best match.

1B 5C n1 n2

Set Relative Print Position

The parameter to this command is in units of dots.
However, the command moves and aligns to
character positions. In A793 Emulation Mode, this
command calculates how many character
positions to move based on the A793 character
width in dots (10) versus the A794 (13).

1B 61 n

Select Justification

This command does true dot resolution alignment
for centering versus character-aligned centering.

1D 2A n1 n2 d1...dn]

Define Downloaded Bit
Image

In A793 Emulation Mode, this command scales
the incoming data to provide a best match to the
size of the image as it printed on A793.

1D 2F m

Print Downloaded Bit
Image

(Same as above)