[cups] Trying to work around Canon MF743cdw driver bugs on MacOS Catalina

[Brian Demsky]

The command doesn’t seem to find the printer specific filter for some reason.

bash-3.2$ cupsfilter -P /etc/cups/ppd/Canon_MF741C_743C__cb_df_25___25___cb_df_25___2___cb_df_25___2_.ppd -m application/octet-stream oopsla2019-lapor.pdf 
cupsfilter: No filter to convert from application/pdf to application/octet-stream.

Brian

> On May 15, 2020, at 6:00 AM, Helge Blischke <helgeblischke at web.de> wrote:
> 
> 
> 
>> Am 15.05.2020 um 10:24 schrieb Brian Demsky <bdemsky at gmail.com>:
>> 
>> Thanks.  Here it is.  Apologize for the compression, but the list has a size limit on posts.  The defective program appears to be the (binary) file capdftopdl.
>> 
>> Brian
> 
> Never mind for the off list post – I’m used to such list problems.
> 
> But, could you please run a test with the cups filter utility from the command line, such as
> 
> cupsfilter -P /etc/cups/ppd/your_printer.ppd -m application/octet-stream your_failing_pdf > your_failing.tmp
> 
> where 
> your_printer		denotes the cups queue name of your canon printer
> your_failing_pdf 	denotes the pdf file that exhibits the issue
> 
> Please post the lines the cupsfilter utility writes to the Terminal off the list to me and
> attach the your_failing.tmp file as well.
> 
> The problem for me is that the printer only accepts Canon’s proprietary UFR II pdl, so it is nearly impossible for me
> to judge the capdftopdl filter’s output without having the real printer installed.
> 
> Helge
> 
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