Printhead Sizes - D78 - Microcom 238B Operator's Manual

Chapter 5
Printer Model
These are examples of how to use the ^D78 and ^D79 commands:
EXAMPLE #1: How to set the printer for a 640 dot, 300 dpi print head:
^A1^D79<CR>
^A640^D78<CR>
EXAMPLE #2: How to set the printer for an 832 dot, 203 dpi print head:
^A0^D79<CR>
^A832^D78<CR>
5.2.4 USB Image Print Mode
149 USB Image Print Mode:
This command controls an image print mode protocol that is used with the
USB port to shift images to the printhead at fast baud rates. This mode
requires that the bmp2mic rev 1.02 or later be used to convert the 1 bit
monochrome bitmap image to be printed. This mode basically shifts data
directly to the printhead and does not use the normal LDS command protocol.
This mode also uses additional baud rates for higher speed image printing.
Protocol:
1. The HOST sends a format to the printer that identifies the media
being used:
Example:
This format only needs to be sent one time after the unit has powered
on. The >RESTARTED< status message could be used to indicate
when this needs to be sent or simply send it each time a print is
desired.
2. The Host then sends the printer the ^D149 command followed by the
raw image size that has been converted by the bmp2mic rev 1.02 or
later. Please note that the size is only terminated with a [CR] and the
[LF] is not included.
Example:
238B Operator's Manual - 880053-0101
Dots/Inch
238 203
238 300
438 203
438 300
Table 5-3

Printhead sizes - D78

^D57[CR][LF]
1,1280,940,,,3,0,1[CR][LF]
^D56[CR][LF]
^D149[CR][LF]size[CR]
Printer Commands
D79 value
448
672
832
1280
(Sets 300 dpi)
(Sets 640 dots)
(Sets 203 dpi)
(Sets 832 dots)
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