Lexmark 23B0225 Technical Reference - Page 76
Adaptive Compression
UPC - 734646782265
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2-64 PCL Adaptive Compression Adaptive compression allows the combined use of compression methods 0 through 3 (Uncoded, Run-Length Encoded, TIFF, and Delta Row). It also allows the printing of empty rows (all zeros) or duplicate rows. • The Transfer Raster Data command size includes all rows (scan lines). • Scan Mode and SizeH,L are three-byte primary control strings: CountH and CountL. Table 2-32: Adaptive Compression Control Strings Scan Mode 0 1 2 3 4 5 254 255 CountH,CountL Data sizeH,L Data sizeH,L Data sizeH,L Data SizeH,L NumberH,L of empty rows NumberH,L of duplicate rows Data SizeH,L Data SizeH,L Data Uncoded raster scan data Size of Run-length encoded data (high,low) Size of Tagged Image File Format (TIFF) data (high,low) Size of Delta Row data (high,low) None None TIFF word TIFF double-word Example: ESC*p300x1500Y ESC*b5M ESC*b29W '03 0009'x 'E0FFFFFFFFFFFFFFFF'x '01 0006'x '0080 FB00 0001'x '05 0035'x '02 0002'x 'F9FF 'x ESC*rB |Move cursor to 1" x 5" |Set the compression to Adaptive Compression |Raster Data: 29 bytes follow | Delta Row: 8 at 0: 'FFFFFFFFFFFFFFFFh'x | Run Length: 1:'80'x, 6x'00'x, 1:'01'x | Duplicate rows: 61 times | TIFF: 8x'FF'x |End graphics