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selphyneo: There appears to be a different header used by net printing.

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Document what I know so far.  We'll need to see.
This commit is contained in:
Solomon Peachy 2017-04-12 20:36:27 -04:00
parent dd31f82a81
commit 3b4ecb818a
1 changed files with 14 additions and 0 deletions
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backend_canonselphyneo.c
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@ -488,4 +488,18 @@ Also, the first time a readback happens after plugging in the printer:
34 44 35 31 01 00 01 00 01 00 45 00 "4D51" ...??
** ** ** ** This is what windows sends if you print over the network:
00 00 00 00 40 00 00 00 02 00 00 00 00 00 04 00 Header [unknown]
00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 01 00 HH HH HH HH 02 00 00 00 PP PP PP PP Header2 [unknown] PP == payload len, HH == payload + header2 len [ie + 3 ]
CC CC CC CC RR RR RR RR 00 00 00 00 LL LL LL LL CC == cols, RR == rows, LL == plane len (ie RR * CC)
L2 L2 L2 L2 L2 == LL * 2, apparently.
[ ..followed by three planes of LL bytes, totalling PP bytes.. ]
*/