All byte valus are unsigned, all words are signed. Strings are stored as byte offsets to a string structure object, and an offset of 0 means there is no string. When PDriver_SetDriver copies this block it makes these additions.
Offset Type PrintEdit name Note
12 byte data length multiplier
13 byte data length added
14 byte dump height
15 string page start
16 string page end
17 string line return
18 string line skip
19 string line end 1
20 string line end 2
21 string line end 3
22 string zero skip
23 string line start 1
24 string line start 2
25 string line pass 1
26 string line pass 1b
27 string line pass 2
28 string line pass 2b
29 string line pass 3
30 string line pass 3b
31 string line pass 4
32 string line pass 4b
33 string set lines
34 byte (from page height) line per page
35 byte (always 1/6") leading zeros to leave
36 word (from skip resolution) multiplier from output DPI to skip
40 word (from skip resolution) divider from output DPI to skip
44 word (always 1") short advance for roll paper (pixels)
48 string form feed
49 byte 0 (reserved)
50 byte 0 (reserved)
51 byte 0 (reserved)
52 word paper x offset
56 word paper y offset
String structure
Offset Contents
0 length of string
1 string (unterminated)
If the 'length of string' byte is 0, this signifies that the string is longer than 255 characters long. In this case we have:
Offset Contents
0 0
1-3 24 bit length of string
4-7 pointer to the string
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