Datamax-O'Neil DPL Programmer’s Manual - Manual (Page 259)

Appendix N – Image Loading
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Appendix N
Image Loading
The printer will accept four types of image files: .BMP, .IMG, .PCX and a special Datamax 7-
bit ASCII file (as defined in this section). Use of the Datamax 7-bit ASCII format will require
at least twice as much data transmission time as the other formats, (see I). The
Datamax ASCII image file format is made up of a set of records with identical formats, each
representing a dot row of the image; a terminator follows the last of these records.
Dot-row record
Dot-row record
Terminator
Each dot-row record has the following format:
Syntax:
80nndd...d
Where:
nn
- Is the number of character pairs in dd...d, represented in
ASCII hex.
dd…d - Is dot data, character pairs, ASCII hex, 00-FF.
Duplicate records may be encoded using a repeat data record, following the data record that
needs duplicating. The repeat data record format is:
Syntax: 0000FFnn
Where: nn - Is the number of duplicates, ASCII hex, 00-FF.
The terminator, last record, at the image download is: FFFF