Printronix S828, Programmer'S Manual

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Programmer Manual PTX ‐ S828
Chapter 5 IPDS Programming Information 158 260071 ‐ 001A
01 A substitute font with characteristics identical to the current font may be used to simulate
baseline shift (superscript/subscript).
FF Same as 00.
Note:
When subscript or superscript is active, double high printing will not occur.
Parameters P3 and P4 are the temporary baseline increments. Its values are:
0000 - 7FFF
Temporary Baseline Increment
FFFF Half the current baseline increment.
Image Function Set Commands
The image function set contains the commands and data controls for presenting image data on a logical
page, page segment, or overlay area on the physical medium. The following commands are the image
function set:
Command Code Description
WIC D63D Write Image Content
WI D64D Write Image
END D65D End
Write Image Control (WIC)
Length D63D Flag Correlation ID (Optional) DATA
The Write Image Control command causes the printer to enter the image block state. The command
sequence that follows directs an image presentation block area on the current page, overlay, or page
segment that is being constructed.
The parameters of this command define the input and output size of the image array and the necessary
information for interpreting the input data.
In the page state, the printer checks all the Write Image Control command parameter values for validity. If
the parameters are not within the valid ranges, an exception condition exists.
An image cannot print outside the page without an error. If any part of the image extends beyond the
physical or logical page, no image prints and an exception occurs.
The DATA field bytes have the following meaning for this command:
Decimal Hex Value Description
0-1 0-1 1 - 7FFF Output - Pels per Scan Line
2-3 2-3 1 - 7FFF Output - Number of Scan Lines
4-5 4-5 1 - 7FFF Input - Pels per Scan Line
6-7 6-7 1 - 7FFF Input - Number of Scan Lines
8 8 00 No Compression Algorithm
9 9 00 Pel Data Format - One Bit per Pel
10-11 A-B 0101 No Magnification
0202 Scale by 2, Both X and Y