[Printing-architecture] CUPS queues should emulate IPP Everywhere printers - First tests

[Printing-architecture] CUPS queues should emulate IPP Everywhere printers - First tests

[Till Kamppeter]

Hi,

on a Ubuntu Vivid (15.04) system I have done the PWG self certification 
tests according to the manual, applied to the local CUPS queues. I get a 
lot of FAILs.

I simply shared all local queues via

cupsctl --share-printers

Then I determined the service names of the local queues by running

sudo /usr/lib/cups/backend/dnssd

giving the service names in its debug output.

Now I have run The Bonjour and IPP tests with following observations:

1. Many FAILs. Where should I report them? CUPS bugs? CUPS mailing list? 
This mailing list?

2. The IPP test prints a JPG file. Isit required for an IPP Everywhere 
printer to print JPG? Is not PWG Raster the only required format?

3. The JPG file printed by the IPP test consumes a lot of ink. Can one 
not use a text page converted to JPG for this test?

Already having the mentioned problems in the first two tests I skipped 
the document test.

    Till

P. S.: CUPS 2.0.2 has no everywhere directory, does this only appear in 
2.1.x?

Re: [Printing-architecture] CUPS queues should emulate IPP Everywhere printers - First tests

[Ira McDonald]

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Hi Till,

You need to share issues directly with Mike Sweet - there's also an
issue tracker setup (I think?) already on the PWG website - you do
have to create an account, in order to report.

Mike - please take a look at Till's feedback.

Till - the actual proper test output file should be shared directly with
Mike.

Cheers,
- Ira

Ira McDonald (Musician / Software Architect)
Co-Chair - TCG Trusted Mobility Solutions WG
Chair - Linux Foundation Open Printing WG
Secretary - IEEE-ISTO Printer Working Group
Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music / High North Inc
http://sites.google.com/site/blueroofmusic
http://sites.google.com/site/highnorthinc
mailto: blueroofmusic@gmail.com
Winter  579 Park Place  Saline, MI  48176  734-944-0094
Summer  PO Box 221  Grand Marais, MI 49839  906-494-2434


On Thu, May 7, 2015 at 6:56 PM, Till Kamppeter <till.kamppeter@gmail.com>
wrote:

> Hi,
>
> on a Ubuntu Vivid (15.04) system I have done the PWG self certification
> tests according to the manual, applied to the local CUPS queues. I get a
> lot of FAILs.
>
> I simply shared all local queues via
>
> cupsctl --share-printers
>
> Then I determined the service names of the local queues by running
>
> sudo /usr/lib/cups/backend/dnssd
>
> giving the service names in its debug output.
>
> Now I have run The Bonjour and IPP tests with following observations:
>
> 1. Many FAILs. Where should I report them? CUPS bugs? CUPS mailing list?
> This mailing list?
>
> 2. The IPP test prints a JPG file. Isit required for an IPP Everywhere
> printer to print JPG? Is not PWG Raster the only required format?
>
> 3. The JPG file printed by the IPP test consumes a lot of ink. Can one not
> use a text page converted to JPG for this test?
>
> Already having the mentioned problems in the first two tests I skipped the
> document test.
>
>    Till
>
> P. S.: CUPS 2.0.2 has no everywhere directory, does this only appear in
> 2.1.x?
> _______________________________________________
> Printing-architecture mailing list
> Printing-architecture@lists.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/printing-architecture
>

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Re: [Printing-architecture] CUPS queues should emulate IPP Everywhere printers - First tests

[Michael Sweet]

Till,

> On May 7, 2015, at 6:56 PM, Till Kamppeter <till.kamppeter@gmail.com> wrote:
> ...
> 1. Many FAILs. Where should I report them? CUPS bugs? CUPS mailing list? This mailing list?

Problems with CUPS should be filed as CUPS bugs.

> 2. The IPP test prints a JPG file. Isit required for an IPP Everywhere printer to print JPG? Is not PWG Raster the only required format?

Both JPEG and PWG Raster are required.

> 3. The JPG file printed by the IPP test consumes a lot of ink. Can one not use a text page converted to JPG for this test?

No.  The purpose of JPEG file printing is photo printing, so we need to validate the output quality.  Text-as-JPEG would not adequately test things.

> P. S.: CUPS 2.0.2 has no everywhere directory, does this only appear in 2.1.x?

The source tarballs don't have the "everywhere" directory, you need to get them from the Git repository...

But like I said at the PWG meeting, you need to use the tools posted on the PWG web site; what is in the CUPS repository is for development of the tools only.

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair

Re: [Printing-architecture] CUPS queues should emulate IPP Everywhere printers - First tests

[Till Kamppeter]

On 05/08/2015 04:03 PM, Michael Sweet wrote:
> Till,
>
>> On May 7, 2015, at 6:56 PM, Till Kamppeter <till.kamppeter@gmail.com> wrote:
>> ...
>> 1. Many FAILs. Where should I report them? CUPS bugs? CUPS mailing list? This mailing list?
>
> Problems with CUPS should be filed as CUPS bugs.

Filed https://www.cups.org/str.php?U4630

Note that I had problems to attach the plist files. Can you make your 
bug system accepting them directly (files with spaces in name, *.plist 
files, data format)? I succeeded only by putting them into a tarball.

>
>> 2. The IPP test prints a JPG file. Isit required for an IPP Everywhere printer to print JPG? Is not PWG Raster the only required format?
>
> Both JPEG and PWG Raster are required.
>

OK, so I will make the System V interface for PPD-less 
cups-browsed-auto-generated queues also accept JPG.

>> 3. The JPG file printed by the IPP test consumes a lot of ink. Can one not use a text page converted to JPG for this test?
>
> No.  The purpose of JPEG file printing is photo printing, so we need to validate the output quality.  Text-as-JPEG would not adequately test things.
>

So then the IPP test which is not about whether photos come out 
correctly but whether jobs are sent, correctly listed, and removed from 
list when donw shoot use documents in PWG Raster format as example 
files. Can be very low resolution for this test,

>> P. S.: CUPS 2.0.2 has no everywhere directory, does this only appear in 2.1.x?
>
> The source tarballs don't have the "everywhere" directory, you need to get them from the Git repository...
>

OK.

> But like I said at the PWG meeting, you need to use the tools posted on the PWG web site; what is in the CUPS repository is for development of the tools only.
>

I have the scripts from these PWG packages. I only wanted to know of 
their upstream home.

    Till

Re: [Printing-architecture] CUPS queues should emulate IPP Everywhere printers - First tests

[Michael Sweet]

Till,

> On May 8, 2015, at 5:47 PM, Till Kamppeter <till.kamppeter@gmail.com> wrote:
> 
> On 05/08/2015 04:03 PM, Michael Sweet wrote:
>> Till,
>> 
>>> On May 7, 2015, at 6:56 PM, Till Kamppeter <till.kamppeter@gmail.com> wrote:
>>> ...
>>> 1. Many FAILs. Where should I report them? CUPS bugs? CUPS mailing list? This mailing list?
>> 
>> Problems with CUPS should be filed as CUPS bugs.
> 
> Filed https://www.cups.org/str.php?U4630
> 
> Note that I had problems to attach the plist files. Can you make your bug system accepting them directly (files with spaces in name, *.plist files, data format)? I succeeded only by putting them into a tarball.

As explained in your other bug report, we screen all incoming attachments.  While I may be able to add plist files to the whitelist (need approval for that), I know spaces and special characters will be a hard sell to my paranoid security overlords.  Putting everything into a tarball is the only way to do it at present (the tarball naturally gets scanned before acceptance, but we don't restrict filenames inside the tarballs...

>> ...
>> No.  The purpose of JPEG file printing is photo printing, so we need to validate the output quality.  Text-as-JPEG would not adequately test things.
>> 
> 
> So then the IPP test which is not about whether photos come out correctly but whether jobs are sent, correctly listed, and removed from list when donw shoot use documents in PWG Raster format as example files. Can be very low resolution for this test,

We still want to be realistic about each of the tests.  If I get some time I might try putting together a different single-page JPEG for the initial print tests.  I am avoiding PWG Raster because that requires some selection logic for the test file (correct resolution, color space, and bit depth for a printer) that isn't easy to embed in a single test.

_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair