I have an old HP #Laserjet printer, so old that it passed the 10 year mark of its embedded TLS certificate on January 1st 2026. And #cups refused to connect to with a "cups-pki-expired" reason and it would then stop the printer.

Thanks to https://blog.whalan.com/2025/solving-cups-pki-expired/ I could figure out a way forward. I could regenerate the certificate on the printer. But then this was not sufficient since cups would then complain that the certificate sent back by the device differed to the certificate it had in its local store. It turns out that this store is /etc/cups/ssl/ and it was easy to identify which file to remove there.

And since the printer is stopped/paused, and we have no practical GUI to unpause it in #GNOME, it was easier to remove the printer and let cups-browsed recreate it.

First new year problem solved !

The HP LaserJet 4M lives again

https://makertube.net/w/4Hw6RJFhi51PCnPL2Lyi9t

HP LaserJet 4P update + new toner cartridge

https://makertube.net/w/dwZWM6R8HKUEEJgMXTP4K4

HP LaserJet 4/4M Printer, Part 7 (Final): Printing demonstration

https://makertube.net/w/vuqqgc7PKamCfbcjirU1ZF

HP LaserJet 4/4M Printer, Part 6: Test page print demo

https://makertube.net/w/v3A2B6x4cLSuw2rn2dSv4D

HP LaserJet 4/4M Printer, Part 5: Menu Options

https://makertube.net/w/8sLhkZdPHzn8XVPxxiNUSG

HP LaserJet 4/4M printer, Part 3: Printer overview

https://makertube.net/w/fjDQRFyDTih4sqehvUrHaD

HP LaserJet 4/4M printer, Part 2: History + LJ4 series overview

https://makertube.net/w/gLL672R7fwavgbKCAG6h7G

HP LaserJet 4/4M printer, Part 1: Intro/Preface

https://makertube.net/w/iB1hHxaBpa5PoDC47RSghQ

I got an HP LaserJet 4M

https://makertube.net/w/88KBbKCigdDzEwaSRiogja

HP LaserJet 4P printer (1993)

https://makertube.net/w/df7jCBG9Gs27ym56nf2jNo

Continued...

So far I have been looking at monochrome HP #LaserJet printers. I feel I have a fairly comprehensive list here.

Each of these are confirmed, by either looking at original manuals or pictures, to have an #IrDA sensor.

The dates, taken from various sources, are probably not exact and are used by me as reference only.

5P (1995)
5MP (1995)
6P (1996)
6MP (1996)
2100 (2002)
2100M (2002)
2100TN (2002)
2200 (2001)

#Printer #Printers

@linuxnews Ohh jaaa, gerade um #HP Drucker mache ich einen riesen Bogen seit vor ca 20 Jahren bei einem Laserdrucker die Transfereinheit(?) getauscht werden sollte nur weil X Blätter gedruckt wurden. Aber es lief noch alles. Und die sollte so viel kosten wie der galbe Drucker.
Seitdem kein HP mehr, und der #Laserjet 5 läuft noch heute - unter #Linux. #Windows sagt er habe zu wenig RAM beim Drucken ...
Um Windows mache ich aber auch einen Biden ... ;)

Wenn der Drucker mal kaputt ist gibt es druckerfrei, dann gehts zur Druckerei - träller

Zitat:
Einige #Multifunktionsdrucker aus #HP #Laserjet -Serie haben derzeit mit #Firmware -Problemen zu kämpfen
- Fehler bei der Kartuschen-Erkennung
Selbst bei HP-eigenen Kartuschen verweigern einige Geräte Druckaufträge. Sie zeigen dann den Fehlercode 11 an, gleichzeitig blinken die Kartuschen-LEDs. Die Drucker erkennen offenbar die Kartuschen nicht als Originalware von HP
https://www.heise.de/news/HP-Firmware-Update-legt-Drucker-lahm-10313688.html

Selbst bei HP-eigenen Kartuschen verweigern einige Geräte Druckaufträge und zeigen den Fehlercode 11 an, während die Kartuschen-LEDs blinken. 🚨

Zum Artikel: https://heise.de/-10313688?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege&utm_source=mastodon

#hp #drucker #firmwareupdate #laserjet #kartuschen

#BSI WID-SEC-2025-0290: [NEU] [mittel] #HP #LaserJet: Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in HP LaserJet ausnutzen, um einen Denial of Service Angriff durchzuführen.

https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0290

People need to stop sleeping on using #Linux for #office #Productivity tasks. A great example of this is today I got a new #laserjet #printer , pulled it out of the box, ran a test print from the printer, and it was automagically working on Linux with no problems. Just up and printing/scanning as soon as I knew it was working properly.

#Verschenke einen Satz originalverpackte 3rd-Party CMYK-Toner (Ersatz für CB540A, CB541A, CB542A, CB543A) für #HP Color #LaserJet

Kompatibel mit CP1515, CP4005, CM1312, CP1210, CP1215, CP1217, CP1510, CP1518, uvm.)

DHL-Versand innerhalb von DE übernehme ich.

Bei Interesse DM mit Adresse/Packstation.

#FediGiveAway

3/2

The one issue I was able to figure out with this #lenovo #T430s was printing on #windoz11

With my #HP #laserjet using #jetdirect cards with an local #IP address have worked fine over the years (and the cheap toner cartridges make it all the better)

But when installing 11, adding and using printers over the #network is nothing but frustration. The #printer would not add/configured, or if it did get added then test prints would sit in the print queue and fail. I could ping the printer, but there was no visible communication with it.

Searching at length, I fumbled across this post

Windows 11 22H2: network printing switched to RPC over TCP
https://www.ghacks.net/2022/11/02/windows-11-22h2-network-printing-switched-to-rcp-over-tcp/

So Microsoft changed the default print related communications for endpoints in #Windows 11 version #22H2 Endpoints now use #RPC over #TCP instead of over Named Pipes.

If you are in this situation, there are some registry edits that can be made manually via #powershell or via #grouppolicy that are documented in that linked article.

I made the edits on the #T430s and am now able to print to my #4050TN Now, for some reason my #ThinkPadP1 is still having issues with printing after the #registry tweaks, with test jobs still sticking in the queue. More #troubleshooting is needed, or I may just #wipe & #reinstall

#vintagecomputing
#vintagecomputing #vintagecomputint #vintagecomputer #vintagecomputers #vintagecomputalk
#vintagehardware
#computerHistory
#retro
#retrocomputing #retroComputers
#WallOfRetro
#retroTech #retroTechnology
#nerdsOfVintage #happyNerding
#computer #tech
#nerds #nerd
#Lenovo #thinkpad #laptop #laptop_computer

#BSI WID-SEC-2024-3079: [NEU] [mittel] #HP #LaserJet: Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in HP LaserJet ausnutzen, um einen Denial of Service Angriff durchzuführen.

https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-3079