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#openprinting

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Public
Till Kamppeter

#OpenPrinting as part of the #linuxfoundation will again mentor 11 contributors in this year's Google Summer of Code!

Our projects cover CUPS 3.x support for #KDE Print Manager, #GNOME Control Center, system-config-printer, pyCUPS, CUPS on #Zephyr, visual analysis of print output for testing, #Rust bindings for libcups and cpdb-libs, utilizing #OSSFuzz Gen, OSS-Fuzz for Go/Python projects, modernize #GTK print dialog, Web site improvement with #Nextjs.

Keep updated on
openprinting.github.io/news/

OpenPrintingNews and EventsMaking Printing Just Work.
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Till Kamppeter

Here is the GSoC project we need a Rust-experienced mentor for:

wiki.linuxfoundation.org/gsoc/

It is Rust bindings for libcups, versions 2.x and 3.x.

We already have some candidates interested in it, so we need the mentor ASAP, to already help us select the best candidate.

Please contact us via the contact channels on the linked project idea page.

And please boost this, thanks.

wiki.linuxfoundation.orggsoc:google-summer-code-2025-openprinting-projects [Wiki]
#OpenPrinting#Rust#CUPS
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Till Kamppeter

Hi, anybody here is experienced in Rust (perhaps even also in creating bindings for a C library/API) and would like to mentor a #GSoC contributor for OpenPrinting? The contributor will work a total of 3 months full-time (or 350 hours) in the time from May to November this year on the project and they will get a stipend from Google.

Only additional requirements are a minimum age of 18 and not to want to participate as GSoC contributor this year or in any later year.

#OpenPrinting#Rust#CUPS
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Till Kamppeter

@zygoon @frameworkcomputer And now I got it actually working! Had to buy an #iFixit toolkit as no Framework screwdriver was supplied and have also bought a 256GB micro-SDXC card to replace the supplied 64GB one.

But 64GB is actually sufficient, only the supplied setup had only a 16GB root partition with an 8GB-sized file system in it.

So what one has to do is to extend the partition and the filesystem (use resize2fs) to the card's capacity.

Printing works perfectly!

#OpenPrinting#Ubuntu
Public
Till Kamppeter

At OpenPrinting we are full steam in the preparations for the Google Summer of Code 2025!

Many enthusiastic contributor candidates are already chatting with us, watching our videos, reading our introductions, studying our code, doing onboarding exercises ...

And what about you? We have listed 15 exciting project ideas, or you bring your own.

Introduction to read and to what, and the project ideas are here:

wiki.linuxfoundation.org/gsoc/

wiki.linuxfoundation.orggsoc:google-summer-code-2025-openprinting-projects [Wiki]
#OpenPrinting#GSoC#CUPS
Public
Till Kamppeter

#OpenPrinting is present on #FOSDEM #FOSDEM2025, Feb 1-2 in Brussels/Belgium! Not only I am there but Akarshan Kapoor is giving a lightning talk about scanner support in #PAPPL, on Sat, Feb 1, 12:10-12:25 (building H, room 2215, Ferrer):

fosdem.org/2025/schedule/event

You will find me and also Soumyadeep Ghosh at the #Ubuntu booth, building K, ground floor, booth K1-A-3.

fosdem.orgFOSDEM 2025 - Scaniverse Universal Scanner Drivers: One Solution for Every Distro
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Till Kamppeter

2/2

... or it just has a severe bug.

Many people are complaining, see here on The Register:

theregister.com/2025/01/02/sca

Or see this thread on Microsoft's community forum (recent comments):

techcommunity.microsoft.com/bl

That is insane.

Workaround/Fix: Switch to #Linux, or at least use #SANE under #WSL (NOTE: Command line use required). Or wipe machine and install #Windows10.

The Register · A New Year's gift from Microsoft: Surprise, your scanners don't workPar Richard Speed
#OpenPrinting#Windows#Windows11
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Till Kamppeter

1/2

Modern printers and especially multi-function devices are driverless (no device-model specific software or information needed), for both the printer and the scanner part. Printing works via IPP and scanning via eSCL or WSD.

On Linux this works very well and people appreciate it.

#Windows has switched over to Windows Protected Print now, in its #Windows11 24H2 release. No printer drivers supported any more, only driverless.

But it seems that scanning got forgotten ...

#OpenPrinting
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Till Kamppeter

@seshpenguin A correction:

cups-browsed is not needed for printer discovery if print dialogs use the correct API. As most do not, distros use cups-browsed to overcome this.

This is the consequence of bad/neglected maintenance of print dialogs by GUI developers and me providing a stop-gap (cups-browsed) ...

To remedy this situation I am already working with the GUI developers to get their dialogs fixed during the last few years, with many #GSoC contributors ...

#OpenPrinting
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Till Kamppeter

@popey from the first section of your blog I see you had the same problem as we at #Ubuntu and at #OpenPrinting, mid-2023 as @linuxflower was still at #Canonical, she created the Snap Update Automation for Ubuntu's Snaps, which I am promoting in one of my workshops and using at OpenPrinting, a nice #GitHub action. My #GSoC contributor Rudra Pratap Singh enhanced it and added versioning automation end-2023 ... Did you not know it?

github.com/ubuntu/desktop-snap

forum.snapcraft.io/t/40263

GitHubGitHub - ubuntu/desktop-snaps: Snap automation toolsSnap automation tools. Contribute to ubuntu/desktop-snaps development by creating an account on GitHub.
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Till Kamppeter

I got note of this new paperweight by a thread on the #OpenPrinting developer mailing list:

lore.kernel.org/printing-archi

Conclusion in the thread:

Print engine and network module are two separate parts in a typical printer. When printer (USB-only) does not have latter, no driverless IPP, even not IPP-over-USB.

So always get a network/Wi-Fi printer even if you want to use it via USB.

lore.kernel.orgExperience with new model Brother DCP-L2600D - no IPP-over-USB support?
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Till Kamppeter

Earlier I talked here about HP's crazinesses to lock their users into expensive original ink and recommended to buy Brother instead of HP.

I also told that typical modern printers, also cheap ones, are driverless IPP (AirPrint, Mopria, ...) nowadays.

But now I have to warn you, and the printer in question is the ultra-cheap, USB-only Brother DCP-L2600D, is not driverless and therefore useless under Linux!

So make sure to get a network/Wi-Fi printer with AirPrint/Mopria logos.

#OpenPrinting
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