Lexmark MC2325 Printer Languages and Interfaces Technical Reference - Page 35

Uncoded data, Run-length encoded data, p300x300Y, t100R, b8W 'FF FF FF FF FF FF FF FF'x

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Printer Control Language (PCL) emulation 35 • 2-Tagged Image File Format (TIFF) Byte • 3-Delta row • 5-Adaptive compression • 9-Replacement delta row • 999-Zlib • 1002-Group 4 • 1003-Group 3 one‑dimensional • 1004-Group 3 two-dimensional K=2 • 1005-Group 3 two-dimensional K=4 • 1006-TIFF word (16 bit) • 1007-TIFF double‑word (32 bit) • 1008-Adaptive compression (includes TIFF word and TIFF double‑word) Uncoded data Uncoded data is not compressed. Only those bytes needed to form the image are sent. Each bit represents a single dot. In the first byte, bit 7 corresponds to the first dot in the raster row, bit 5 to the third dot, and so forth. Example: ESC*p300x300Y |Move the cursor to 1 x 1 in. (1 in. from top margin and 1 in. from left edge of logical page) ESC*t100R |Set resolution to 100-dots per inch ESC*r0F |Rotate image to match current orientation ESC*b0M |Set compression mode to uncoded ESC*r1A |Start raster graphics at current position ESC*b8W 'FF FF FF FF FF FF FF FF'x |Raster data uncompressed ESC*b8W '80 00 00 00 00 00 00 01'x ESC*b8W '80 00 00 00 00 00 00 01'x ... |Repeat to provide 64 total scan lines ESC*b8W '80 00 00 00 00 00 00 01'x ESC*b8W 'FF FF FF FF FF FF FF FF'x ESC*rB |End graphics Run-length encoded data Run-length encoded data is interpreted in pairs of bytes. The following are the characteristics of the first byte: • Acts as a counter, or control byte. • Indicates how many times to repeat the data in the second byte. • Can be from 0 (no repetition) to 255. • The second byte is the data byte.

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•
2—Tagged Image File Format (TIFF) Byte
•
3—Delta row
•
5—Adaptive compression
•
9—Replacement delta row
•
999—Zlib
•
1002—Group 4
•
1003—Group 3 one
‑
dimensional
•
1004—Group 3 two-dimensional K=2
•
1005—Group 3 two-dimensional K=4
•
1006—TIFF word (16 bit)
•
1007—TIFF double
‑
word (32 bit)
•
1008—Adaptive compression (includes TIFF word and TIFF double
‑
word)
Uncoded data
Uncoded data is not compressed. Only those bytes needed to form the image are sent. Each bit represents a
single dot. In the first byte, bit 7 corresponds to the first dot in the raster row, bit 5 to the third dot, and so forth.
Example:
ESC
*p300x300Y
|Move the cursor to 1 x 1 in. (1 in. from top margin and 1 in. from left
edge of logical page)
ESC
*t100R
|Set resolution to 100-dots per inch
ESC
*r0F
|Rotate image to match current orientation
ESC
*b0M
|Set compression mode to uncoded
ESC
*r1A
|Start raster graphics at current position
ESC
*b8W 'FF FF FF FF FF FF FF FF'x
|Raster data uncompressed
ESC
*b8W '80 00 00 00 00 00 00 01'x
ESC
*b8W '80 00 00 00 00 00 00 01'x
...
|Repeat to provide 64 total scan lines
ESC
*b8W '80 00 00 00 00 00 00 01'x
ESC
*b8W 'FF FF FF FF FF FF FF FF'x
ESC
*rB
|End graphics
Run-length encoded data
Run-length encoded data is interpreted in pairs of bytes.
The following are the characteristics of the first byte:
•
Acts as a counter, or control byte.
•
Indicates how many times to repeat the data in the second byte.
•
Can be from 0 (no repetition) to 255.
•
The second byte is the data byte.
Printer Control Language (PCL) emulation
35