Re: Canon ImageClass MF4770n not listed on Canon OpenPrinting list

Am 09.12.25 um 02:47 schrieb jacobk:
> Hello,
> 
> I have access to a Canon ImageClass MF4770n printer, and I wanted to 
> print to it from Trisquel. Canon provides a Linux driver [1], but I 
> don't want to use it because it's proprietary, and the license might 
> preclude my use case anyway (use in a business). Maybe I am reading the 
> license too strictly, but I would like to avoid it anyway.
> 
> I looked at a list on openprinting.org [2] and didn't see this model 
> mentioned as working or non-working, so my understanding is that this is 
> a printer that hasn't been investigated much yet.
> 
> The ppd files included with the Canon driver package are released under 
> a free license, but they depend on a nonfree filter program called 
> "rastertoufr2", presumably to convert raster input to UFR II output. I 
> found a different repository with a filter to convert PostScript to UFR 
> II [3], and a different program to convert raster to PostScript [4].
> 
> Would I be correct to think those programs could be combined to build a 
> fully-free printer driver for this model, or am I missing something 
> important?
> 
> I also made a similar post on the Trisquel forums [5].
> 
>   - Jacob K
> 
> [1] https://in.canon/en/support/0100924010?model=imageCLASS+MF4770n
> [2] https://openprinting.org/printers/manufacturer/Canon
> [3] https://github.com/vicamo/cndrvcups-lb
> [4] https://github.com/pts/sam2p
> [5] https://trisquel.info/en/forum/canon-imageclass-mf4770n-will-not- 
> work-without-proprietary-software-it-seems
> 

Hi,

reading the license I'm sure, commercial use is allowed - if your 
business is legal ;-)

looking into the git sources [3] I'm sure they're under the same 
restrictions as I found there:

https://github.com/vicamo/cndrvcups-lb/blob/master/LICENSE-ufr2-2.40E.txt:

[1] SOFTWARE LICENSE AGREEMENT FOR CANON'S OR ITS LICENSORS' SOFTWARE 
PROGRAMS

IMPORTANT

This is a legal agreement ("Agreement") between you and Canon Inc. 
("Canon")  governing your use of Canon's or its licensors' software 
programs incorporated in this Canon's product "Canon UFR II/UFR II LT 
Printer Driver for Linux v2.40 " ("Product"), and which software 
programs are listed in Schedule 1 of Exhibit attached hereto.  Such 
Canon's or its licensors' software programs shall be
referred to hereinafter as the "Software."
...

so IMHO a driver built by this would be "tainted" as well...

I think, all ufr stuff is a "secret" of Canon and because of the linux 
drivers you can get no one had a big interest on "breaking" it. 
Espacially as Canon printers are not that wide spread in the desktop 
computer world...

-- 
cu

jth