Lexmark Dot Matrix Technical Reference - Page 134

Downloading the Lookup Table Data, x615 + x8011 = x8626 offset + character 0 lookup table address

Page 134 highlights

Example: Replace ASCII character 173 (inverted exclamation point) with the twosixteenth note. There are 9 bytes per entry, and entry 0 of the draft table starts at x8011. 9 x 173 = 1557 = x615 (the offset into the table) x615 + x8011 = x8626 (offset + character 0 lookup table address) The address for the new lookup table entry for ASCII character 173 is x8626. Downloading the Lookup Table Data Use the following example to send the lookup table information to the printer: 134 Section 7: Downloading Characters and Fonts

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Section 7: Downloading Characters and Fonts
134
Example:
Replace ASCII character 173 (inverted exclamation point) with the two-
sixteenth note. There are 9 bytes per entry, and entry 0 of the draft table starts at
x8011.
9 x 173 = 1557 = x615 (the offset into the table)
x615 + x8011 = x8626 (offset + character 0 lookup table address)
The address for the new lookup table entry for ASCII character 173 is
x8626.
Downloading the Lookup Table Data
Use the following example to send the lookup table information to the printer:
<x
1B3D
-
download command prefix
0C00
-
byte count (low byte first) - x000C,12
23
-
font ID for 249x printers
2686
-
start address in Lookup Table (low byte
first) - x8626
B000
-
start address of character data (high
byte first) - xB000
09
-
number of stored columns
09
-
number of printed columns - 1 (for last
blank column)
0000000000
-
compression mask
>