Lexmark 258x - Manual (Page 52)

Graphics
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Graphics Commands
Normal Density Bit Image Graphics (60 dpi)
This command sends normal density bit images to be printed at 60 dots per inch (dpi)
horizontally and 72 dpi vertically.
USAGE NOTES
•
The command discards all data that goes beyond the current margin.
•
Text and graphics can be printed on the same line.
•
Count the total number of bytes of binary bit-image data (A). The total number
of bytes cannot exceed the number of dot columns that remain on the line.
This value is represented by Ln and Hn.
– When a value is represented by two parameter bytes, value (A) = Ln + Hn
X 256. Calculate values of A less than 256.
• Hn is 0.
• Ln is the value.
– To calculate values of A equal to or greater than 255.
• Divide the value A by 256.
• The result is Hn.
• The remainder is Ln.
•
V1 though Vn represent graphics data.
Each vertical dot column can have 8 rows of dots.
To print bit image graphics, the printer uses either the first 8 (258x) or 20 (259x) wires
of the printhead to map the eight bits of data.
The following table shows how the print wires are mapped for the 258X printers.
Format ESC K Ln Hn V1 ... Vn
Decimal 27 75 Ln Hn V1 ... Vn
Hexadecimal 1B 4B Ln Hn V1 ... Vn
Table 2-14: Print Wire Mapping (258X only)
Dot Position Bit Number Decimal Hexadecimal
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