[cups] Windows bypasses cups drivers

[Alex Korobkin]

Maarten,


2014-05-19 11:33 GMT-04:00 Maarten Suetens <suetens.maarten at gmail.com>:

> Hello Alex,
>
> I have a printer-specific driver installed on the server and set the color
> mode to black/white using the web interface.


Printer settings that you set in CUPS web interface have no effect on
Windows drivers. See how to change Windows driver defaults as explained in
the link I provided. Search for "Printing defaults" on the page.

When i install that printer in the Windows client (through IPP) using a
> generic postscript driver the grayscale works.
> We only want to enforce grayscale on our users so printing duplex should
> still be available, but this generic PS driver does not allow duplex
> printing.
>
> So, i tried installing this same printer(with grayscale enabled) in the
>  same client, only this time using printer specific PS driver so the users
> can still print duplex if they wanted to. Now the problem arises that
> grayscale is no longer enforced, i read this is due to the printer PS
> driver produces final printer specific data that is then forwarded "as is"
> to the printer device.
>
> My question is basically whether i can make cups re-evaluate the PS job it
> gets from the windows client so that the duplex option coming from the
> windows driver is kept and the grayscale option from the server would be
> applied.
>
>
> Thanks for taking an interest and kind regards,
> Maarten
>
> On 19/05/2014 16:09, Alex Korobkin wrote:
>
>> Maarten,
>> It is unclear if you uploaded printer-specific driver to the client or to
>> the server.
>>
>> If you uploaded manufacturer-provided Windows drivers to the printserver
>> as
>> explained here
>> https://wiki.samba.org/index.php/Samba_as_a_print_server#
>> Uploading_printer_drivers_for_Point.27n.27Print_driver_installation
>> you can set the default settings to grayscale printing (Advanced >
>> Printing
>> defaults), and every new client will have that set by default.
>>
>>
>>
>> 2014-05-19 3:32 GMT-04:00 Maarten Suetens <suetens.maarten at gmail.com>:
>>
>>  Hello all,
>>>
>>> I'm currently trying to enforce grayscale printing at the company I work
>>> at through cups. I have added the printer (sharp mx2600n) to the cups
>>> server using the ppd file and on the web interface i set the color mode
>>> to
>>> black & white.
>>>
>>> When i print from the cups server(CentOS 6.5) it does use the grayscale
>>> and when i add the printer in Windows using generic postscript drivers it
>>> also enforces the grayscale correctly. But the problem is that the
>>> generic
>>> PS drivers does not support duplex printing.  When i add the printer to
>>> Windows using printer specific PS driver, the settings configured on the
>>> server are completely ignored and prints are being made in full color.
>>>
>>> Any help would be greatly appreciated.
>>>
>>> Thanks in advance and kind regards,
>>> Maarten
>>> _______________________________________________
>>> cups mailing list
>>> cups at cups.org
>>> https://www.cups.org/mailman/listinfo/cups
>>>
>>>
>>
>>
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>



-- 
-Alex