Compuprint MDP40B Programmer Manual - Manual (Page 81)

A-79
There are actually 12 vertical columns in a graphic, however the last column must
always be blank, so it is not specifiable in the image information.
Horizontally consecutive dots are eliminated in standard text print mode (but are
printed in near-letter-quality print mode). The dot elimination process starts from
the left.
Code points 00H, 20h, 7FH and FFH are handled specially by the printer and care
should be taken when you are downloading characters for these points.
24 pin font image
c
1
c
2
Define the least-significant and most-significant byte (respectively) of a
hexadecimal count of the bytes n that follow the count. You calculate the
count as follows:
Count (c
2
* 256) + c
1
or
Count ((number of downloaded characters) * 38) + 2
The maximum number of customer defined characters is 256, therefore, the maximum
count will be 9730 or X2602. A count value of 0 will reload the customer defined
character area from the resident character area.
A count value of 0 loads the customer defined character area from the resident
character area.
n Contains the following hexadecimal data:
X D0 Start_code_point Slice_image_information