M-S Cash Drawer A794 manual Comparisons, 24 n1 n2

Chapter 6: Programming InformationA794 Owner’s Guide

Comparisons

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).

	Command	Description	Difference between previous product
			and new product Emulation Mode.
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	This command sets the right side spacing to “n”
		Spacing	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	For graphics commands, the position is scaled to
		Position	best match A793. In text mode, the equivalent
			character position is calculated.
1B	26 s c1 c2 n1 d1...nn dn]	Define User-Defined	Since the dots on the A794 printhead are smaller,
		Character Set	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	In A793 Emulation Mode, the printer scales the
		Graphics	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	In A793 Emulation Mode, this command scales
		Image	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	(Same as above)
		Image

60 December 1999