[cups-devel] Using cups API to send PDF document without converting to PS first
Michael Sweet
msweet at apple.com
Thu Mar 15 18:47:15 PDT 2018
Nimesh,
The real IPP Everywhere PPD generator (accessible via the -m option of lpadmin) will only add the formats that are supported/needed. There is no reason to list both image/urf and image/pwg-raster, and in fact there are reasons (with some printers) to prefer image/urf since it has been supported for a longer time and seems to be more stable.
IPP printers use the "job-password" option to specify a passcode - I don't know whether your printer supports it or not, but you can try using it from the command-line and, if so, the job will be held until you enter the code on the printer's panel.
> On Mar 15, 2018, at 9:29 PM, Nimesh Amin <nimesh.i.amin at gmail.com> wrote:
>
> It seems like it's only passing through pdftopdf now, which is much
> better. However, I can't set options like I used to through cupAddOption.
> Did the syntax change? Previously, this worked (from CUPS website):
> *OpenUI JCLPasscode/Key Code: PickOne
> *OrderDependency: 10 JCLSetup *JCLPasscode
> *DefaultJCLPasscode: None
> *JCLPasscode None/No Code: ""
> *JCLPasscode 1111: "@PJL SET PASSCODE = 1111<0A>"
> *JCLPasscode 2222: "@PJL SET PASSCODE = 2222<0A>"
> *JCLPasscode 3333: "@PJL SET PASSCODE = 3333<0A>"
> *JCLCloseUI: *JCLPasscode
> *CustomJCLPasscode True: "@PJL SET PASSCODE = "\1"<0A>"
> *ParamCustomJCLPasscode Code/Key Code: 1 passcode 4 4
>
> ----- Then with CUPS API:
> num_options = cupsAddOption("JCLPasscode", "Custom.7777", num_options,
> &options);
>
>
> Here are the filters in the generated PPD, below. Oddly enough, adding a
> printer directly produces this, but the auto-detected printer that was
> added didn't have pwg-raster and made application/pdf weight 0.
> *cupsFilter2: "image/urf image/urf 100 -"
> *cupsFilter2: "image/pwg-raster image/pwg-raster 100 -"
> *cupsFilter2: "image/jpeg image/jpeg 0 -"
> *cupsFilter2: "application/vnd.cups-pdf application/pdf 10 -"
>
>
> On Thu, Mar 15, 2018 at 12:00 PM, Michael Sweet <msweet at apple.com> wrote:
>
>> Nimesh,
>>
>> Try using the "everywhere" driver - you'll find the generated PPD in the
>> /etc/cups/ppd directory.
>>
>> As for passcode support, that is still spotty with many printers but if
>> your printer supports the IPP "job-password" attribute then the right
>> things will be added to the PPD.
>>
>>
>>> On Mar 15, 2018, at 2:54 PM, Nimesh Amin <nimesh.i.amin at gmail.com>
>> wrote:
>>>
>>> Note, I was using an older CUPS version that was on Ubuntu 16.04. I've
>>> just upgraded to 17.10, which is getting me 2.2.4-7ubuntu3.
>>> I used the xrxc400.ppd from Xerox, which obviously doesn't contain any
>> CUPS
>>> specific attributes. I've noticed using -m everywhere to install
>> printers
>>> now via lpadmin. Should I just use that, considering it's an IPP
>> printer?
>>> Where would the generated PPD end up? I'll need to add some specific
>> items
>>> for passcode support (unless that's already implemented).
>>>
>>>
>>> On Wed, Mar 14, 2018 at 10:30 PM, Michael Sweet <msweet at apple.com>
>> wrote:
>>>
>>>> That depends on the driver that is being used, but it *is* possible.
>> What
>>>> cupsFilter lines are present in the PPD file for the queue in question?
>>>>
>>>>> On Mar 14, 2018, at 10:56 PM, Nimesh Amin <nimesh.i.amin at gmail.com>
>>>> wrote:
>>>>>
>>>>> I’m using cupsStartDestDocument with format CUPS_FORMAT_PDF to send a
>> PDF
>>>>> document to a PDF capable printer. I’m noticing that the document is
>>>>> converted and sent as Postscript. Is there a way, besides having to
>> use
>>>>> ipp* fn’s directly, to send the PDF document without CUPS doing a
>>>>> conversion?
>>>>> _______________________________________________
>>>>> cups-devel mailing list
>>>>> cups-devel at cups.org
>>>>> https://lists.cups.org/mailman/listinfo/cups-devel
>>>>
>>>> _________________________________________________________
>>>> Michael Sweet, Senior Printing System Engineer
>>>>
>>>> _______________________________________________
>>>> cups-devel mailing list
>>>> cups-devel at cups.org
>>>> https://lists.cups.org/mailman/listinfo/cups-devel
>>>>
>>> _______________________________________________
>>> cups-devel mailing list
>>> cups-devel at cups.org
>>> https://lists.cups.org/mailman/listinfo/cups-devel
>>
>> _________________________________________________________
>> Michael Sweet, Senior Printing System Engineer
>>
>> _______________________________________________
>> cups-devel mailing list
>> cups-devel at cups.org
>> https://lists.cups.org/mailman/listinfo/cups-devel
>>
> _______________________________________________
> cups-devel mailing list
> cups-devel at cups.org
> https://lists.cups.org/mailman/listinfo/cups-devel
_________________________________________________________
Michael Sweet, Senior Printing System Engineer
More information about the cups-devel
mailing list