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#1 2014-04-10 19:58:19

mauritzius
Member
Registered: 2009-08-07
Posts: 26

[Solved] Network Printer prints only garbage after CUPS upgrade

I have an ALARM system running CUPS with a USB printer connected. The USB printer is shared as a local RAW printer to CUPS clients (running Arch Linux). All systems were running CUPS 1.6.3 and were working fine.

Today, I finally decided to upgrade to CUPS 1.7.1. Unfortunately, now my printer only prints garbage. If I downgrade to 1.6.3, it works again. CUPS 1.7.1 as client with 1.6.3 on the server doesn't work, either, so I suspect the client side to be somewhat broken.

The printer is a HP LaserJet 3310, connected via USB. On the clients, the HP LaserJet 3300 PostScript driver was used, but selecting the PCL driver doesn't change the problem (both being hpcups drivers). I turned on debug-logging (on the client), the job runs through the hpcups filter without errors.


Does anybody have any suggestions?

Last edited by mauritzius (2014-04-23 07:24:56)

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#2 2014-04-21 14:13:08

mauritzius
Member
Registered: 2009-08-07
Posts: 26

Re: [Solved] Network Printer prints only garbage after CUPS upgrade

nobody?

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#3 2014-04-21 15:02:18

Pse
Member
Registered: 2008-03-15
Posts: 389

Re: [Solved] Network Printer prints only garbage after CUPS upgrade

Have you tried adding a new printer to CUPS and using the generic PCL driver? If that doesn't work, perhaps you could take a look at installing hplip (which may provide better integration between CUPS and your printer).

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#4 2014-04-21 16:23:14

fsckd
Forum Fellow
Registered: 2009-06-15
Posts: 4,173

Re: [Solved] Network Printer prints only garbage after CUPS upgrade

mauritzius wrote:

nobody?

It is better to ask this on the ALARM forum. https://bbs.archlinux.org/viewtopic.php?id=153431
Closing and Dustbin.

Edit: mauritzius informed me privately that the problem concerns the clients which run vanilla Arch Linux. I am reopening this thread and moving it to Applications & Desktop Environments.

Last edited by fsckd (2014-04-22 22:52:20)


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#5 2014-04-23 07:27:39

mauritzius
Member
Registered: 2009-08-07
Posts: 26

Re: [Solved] Network Printer prints only garbage after CUPS upgrade

fsckd wrote:

Edit: mauritzius informed me privately that the problem concerns the clients which run vanilla Arch Linux. I am reopening this thread and moving it to Applications & Desktop Environments.

Thanks for reopening. I clarified my initial post, and can now mark it as solved.

For other's reference:

CUPS 1.7 enables compression by default for networked printers. For raw queues, the data is not decompressed at the server, but sent directly to the printer - which can't work.

The solution is to add compression=none to the URL of the printer, so it becomes:

ipp://alarm.local:631/printers/laserjetraw?compression=none

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