canonselphy: Add some preliminary docs on the CP820/CP910
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@ -1280,6 +1280,37 @@ struct dyesub_backend canonselphy_backend = {
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necessarily identical. So it's possible to have a code of, say,
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0x41 if the 'Wide' paper tray is loaded with a 'P' ribbon. A '0' is used
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to signify nothing being loaded.
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***************************************************************************
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Selphy CP820/CP910:
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Radically different spool file format! 300dpi, same print sizes, but also
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adding a 50x50mm sticker and 22x17.3mm ministickers, though I think the
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driver treats all of those as 'C' sizes for printing purposes.
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32-byte header:
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0f 00 00 40 00 00 00 00 00 00 00 00 00 00 01 00
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01 00 ?? 00 00 00 00 00 XX 04 00 00 WW ZZ 00 00
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?? == 50 (P)
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== 4c (L)
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== 43 (C)
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XX == e0 (P)
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80 (L)
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40 (C)
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WW == 50 (P)
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c0 (L)
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9c (C)
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ZZ == 07 (P)
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05 (L)
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02 (C)
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P == 7008800 == 2336256 * 3 + 32 (4.884% larger than CP)
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L == 5087264 == 1695744 * 3 + 32 (5.878% larger than CP)
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C == 2180384 == 726784 * 3 + 32 (3.991% larger than CP)
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*/
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