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On Sunday, 14 February 2021 06:43:55 GMT Dan Egli wrote: |
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> On 2/12/2021 4:00 AM, Michael wrote: |
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> > D [11/Feb/2021:13:08:36 -0700] [Job 11] hpcups |
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> > (application/vnd.cups-raster to printer/ENVY, cost 0) |
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> > |
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> > This is the hplip printer driver in action, using a MIME format for CUPS |
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> > to transmit and print raster imaged pages. |
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> > |
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> > Question: Why is this driver in play? |
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> > |
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> > Even if the physical printer is an HP, it is neither connected to Janus, |
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> > nor Athena. |
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> |
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> No, it's not. But the windows printer driver expects the client to do |
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> all the rendering and deliver only finalized printer instructions when |
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> it receives network jobs. I suppose I could change it to a generic |
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> PostScript driver and tell Windows to do the rendering... |
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I think the problem arises if you layer one printer driver over another. |
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> > I suggest you configure CUPS in Janus to use a different print driver: |
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> > |
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> > First try 'IPP everywhere' the latest /driverless/ printing option. With |
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> > 'IPP everywhere' CUPS will communicate with IPP enabled printers and |
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> > interrogate them on the fly to generate and use the requisite PPD |
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> > capabilities configuration. |
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> |
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> Hmmm. Didn't see IPP everywhere as a "driver" but i really didn't look |
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> past the HP drivers. But I question if even that will work. Sounds like |
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> when Athena tries to render the page into printer instructions it's |
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> dying, with the cupsRasterOpen failed (and what kind of an error message |
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> is that? Tell me something I might be able to use to FIX the issue!). |
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Heh! Devs' messages are usually clear in their meaning. Mostly to devs. :-) |
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Since the printer is not physically attached to and driven by Athena, I think |
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the rendering is taking place by the MSWindows printer driver, at the Windows |
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OS. |
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Athena functions as a router in this case pushing what it receives over |
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smb://. |
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Have a look here for the 'IPP Everywhere' configuration option: |
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https://wiki.gentoo.org/wiki/Driverless_printing |
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> > If this doesn't work, then try 'RAW' and leave it to Athena's CUPS server |
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> > to submit the raw data for printing to its back end (Windows Printer via |
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> > SAMBA). |
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> > |
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> > The logs should indicate if there is a problem somewhere along the chain. |
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> |
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> I'll try this and let you know. I'm actually about to head for bed as I |
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> write this, so I'll check on it Tomorrow (Sunday). |
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