Zebra A300 Specifications Page 92

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Alternative Data Compression Scheme for ~DG and ~DB
Instructions
There is an alternative data compression scheme recognized by the
Zebra printer. This scheme further reduces the actual number of data
bytes and the amount of time required to download graphic images
and bitmapped fonts with the ~DG and ~DB instructions.
The following represent the repeat counts 1,2,3,4,5,....,19 on a subse-
quent Hexadecimal value.
NOTE: Values start with G since 0 thru 9 and A thru F are already
used for HEX values.)
GHIJKLMNOPQRSTU VWX Y
1 2345678910111213141516171819
Example: Sending a M6 to the printer is identical to sending the fol-
lowing Hexadecimal data:
6666666
The “M” has the value of 7. Therefore “M6" sends seven (7) hexa-
decimal 6’s.
ghijklmnopq
20 40 60 80 100 120 140 160 180 200 220
rst uvwx yz
240 260 280 300 320 340 360 380 400
The numbers above represent the repeat counts 20, 40, 60, 80,....400
on a subsequent Hexadecimal value.
Example: Sending a hB to the printer is identical to sending the fol-
lowing HEX data:
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
The “h” has the value of 40. Therefore “hB” sends forty (40) hexa-
decimal B’s.
CHAPTER 5 83
ZPL II Advanced Techniques
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