Brother International TD-4420DN Raster Command Reference - Page 42

However, with compression, the number of unused pins is also added to the data. In other words,

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Page 42 highlights

Raster Command Reference Explanation of "TIFF compression mode" With compression, the data for the "raster graphics transfer" command is based on 104bytes (TD-4410D/4420DN (203 dpi)) or 160 bytes (TD-4510D/4520DN/4550DNWB (300 dpi)) of the total number of pins (TD-4410D/4420DN (203 dpi): 832 and TD-4510D/4520DN/4550DNWB (300 dpi): 1280). As shown below, with no compression, the sum of the number of offset pins and the number of pins within the print area is the byte data. However, with compression, the number of unused pins is also added to the data. In other words, with compression, this becomes 104 bytes with TD-4410D/4420DN (203 dpi) or 160 bytes with TD-4510D/4520DN/4550DNWB (300 dpi) when it is expanded by the machine, regardless of the tape width. Raster line with compression Raster line with no compression 0 pin First byte Number of offset pins Tape margin Number of print area pins Total number of pins Print area Number of unused pins Last byte Pins on print head Feeding direction - 36 - 7. Printing Command Details

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Raster Command Reference
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36
-
7. Printing Command Details
Explanation of “TIFF compression mode”
With compression, the data for the “raster graphics transfer” command is based on
104bytes (TD-4410D/4420DN (203 dpi)) or 160 bytes (TD-4510D/4520DN/4550DNWB (300 dpi)) of the
total number of pins (TD-4410D/4420DN (203 dpi): 832 and TD-4510D/4520DN/4550DNWB (300 dpi): 1280).
As shown below, with no compression, the sum of the number of offset pins and the number of pins within the
print area is the byte data.
However, with compression, the number of unused pins is also added to the data. In other words, with
compression, this becomes 104 bytes with TD-4410D/4420DN (203 dpi) or
160 bytes with TD-4510D/4520DN/4550DNWB (300 dpi) when it is expanded by the machine,
regardless of the tape width.
0 pin
Last byte
First byte
Tape margin
Raster line with
compression
Feeding direction
Print area
Pins on print head
Number of
print area
pins
Number
of offset
pins
Total
number
of pins
Number
of unused
pins
Raster line with
no compression