[sane-devel] Canon MF4140

[Dennis Lou]

Thanks.  The first log was probably sufficient, but the ensuing ones will probably make good supporting data should it be needed.

I took a look and indeed it is similar to existing code.  As a matter of fact, I'm still deciding whether it's more similar to the MF4270 or the MP730.  One of the key diffs between the MF4270 is the checksumming; in yours, it just puts a checksum at the end like other Pixmas while mine is weird in that it puts the inverse at the end and the regular checksum before it.

Anyway, I'll dig into it more tomorrow.  If you don't mind, I'm also cc'ing the list and attaching an abridged version of the log for posterity and in case anyone else wants to weigh in on the protocol.

-Dennis

 URB cmd/len: data
----------------------
... [init stuff]
   6 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
   7 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74
   8 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
   9 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74
  10 b-wr 20: cf 60 00 00 00 00 00 00 0a 00 01 00 00 00 00 00
              00 00 00 ff
  11 b-rd  2: 06 06
  12 b-wr 20: cf 60 00 00 00 00 00 00 0a 00 01 00 00 00 00 00
              00 00 00 ff
  13 b-rd  2: 06 06
  14 b-rd 20: cf 60 00 00 00 00 00 00 0a 00 01 00 00 04 00 00
              00 00 00 fb
  15 b-rd  2: 06 06
  16 b-wr 10: db 20 00 00 00 00 00 00 00 00
  17 b-rd  2: 06 06
  18 b-wr 20: dd 20 00 00 00 00 00 00 0a 00 01 00 00 00 00 00
              00 00 00 ff
  19 b-rd  2: 06 06
  20 b-wr 56: de 20 00 00 00 00 00 00 2e 00 00 00 00 00 10 4b
              10 4b 00 00 00 00 00 00 00 00 00 00 02 80 00 00
              00 20 04 08 00 00 00 00 00 7f ff 00 00 81 00 00
              00 00 00 00 00 00 00 9d
  21 b-rd  2: 06 06
  22 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
  23 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74
  24 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
  25 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74
  26 b-wr 11: d4 20 00 00 00 00 00 00 00 00 06
  27 b-rd  8: 06 06 00 00 00 00 00 00
  28 b-wr 11: d4 20 00 00 00 00 00 00 04 00 06
  29 b-rd  8: 06 06 00 00 00 00 02 80
... [scan data]
 156 b-wr 11: d4 20 00 00 00 00 00 00 04 00 06
 157 b-rd  8: 06 06 38 00 00 00 00 00
 158 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
 159 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74
 160 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
 161 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74
 162 b-wr 10: ef 20 00 00 00 00 00 00 00 00
 163 b-rd  2: 06 06
 164 b-wr 20: cf 60 00 00 00 00 00 00 0a 00 01 00 00 00 00 00
              00 00 00 ff
 165 b-rd  2: 06 06
 166 b-wr 10: f3 20 00 00 00 00 00 00 0c 00
 167 b-rd 14: 06 06 03 01 00 41 03 00 41 00 03 00 00 74





----- Original Message ----
From: Bob Dronski <dronski at gmail.com>
To: Dennis Lou <dlou99 at yahoo.com>
Sent: Saturday, August 23, 2008 1:20:22 PM
Subject: Re: [sane-devel] Canon MF4140


Got a couple more.  150dpi color from the bottom of the scan and 300 dpi b/w along the left edge.

This enough to get you started?
bob