Configure HP LaserJet P1505n printer.

Falling back and punting, I used the Trisquel_9 Live DVD to make another installation attempt,
but was quickly greeted with "Cups server error" and "Client-error-not-possible." However, I
noticed that of the four suggested drivers, three were annotated, "require proprietary plugin."
Everything looks OK at http://192.168.1.4, but this time I noticed that the password entries
had been filled out. I erased those and entered my own password along with "admin" as user,
but in subsequent browsing the new username and password were not accepted.
Then I ran the command, sudo apt-get purge cups, and reinstalled cups after rebooting.
Back to Trisquel_10. I tried the three remaining drivers suggested for the HP-LaserJet-P1505n.
None have the annotation noted from the TQ_9 Live DVD. Those drivers are:
(1) HP LaserJet p1505n hpijs pcl3, which displays the "Printer is not responding" message as
does the recommended Foomatic.foo2xqx driver's setup on attempting to print a test page.
(2) HP LaserJet p1505n hpijs, zxs, which displays a status of "Filter failed" from the
diagnostics tool available when checking the job status.

The syslog diplays something alarming:cat /var/log/syslogNear the end of which these lines are repeated:
prnt/hpijs/hpijs.cpp 271: unable to set device=HP LaserJet M1005, err=48
prnt/hpijs/hpijs.cpp 292: unable to set device=HP LaserJet M1005, err=48
prnt/hpijs/hpijs.cpp 707: unable to read client data err=-2
That's not my printers name: HP LaserJet P1505n.
What's the complete path to that record ?

See: https://superuser.com/questions/1750127/can-no-longer-print-using-cups where it's said:Can no longer print using CUPS
Asked 1 month ago
Modified 1 month ago
Viewed 70 times
I have a Brother_HL_L3270CDW_series printer which worked out-of-the-box, was detected by Ubuntu 22.04
over WiFi and could print immediately. It stopped working and I don't know why. With cupsctl --debug-logging,
here are is /var/log/cups/error_log
which looks like my own /var/log/cups/error_log, attached as var-log-cups-error_log.txt.

Recently I came across an accessory called HPLIP Toolbox, which can be opened from the Mate index
by installing hplip-gui. Thereafter, installation of the HP LaserJet P1505n can be accomplished by
opening HPLIP Toolbox (which does not at first detect any HP products !) and selecting CUPS Web
Interface from the HP Device Manager Popup that appears. Another page then appears with URI
localhost:631/admin whose functions are fairly clear. It will find the printer, add a printer
or manage the one you've got. Upon picking an existing printer, another page comes up that lists
its details. Double-clicking on the printer name brings up additional actions you can take.
In my case, I told the printer to print a test page, which appeared promptly at the printer
output tray. Then I asked for a printer self-test page, which took a couple of minutes to produce
a single page with the banner: "If you can read this, you are using the wrong printer driver."
Later I tested the installation by asking it to print a page of FeatherPad text, which came out
OK. That may be what's preventing Trisquel (and other linux OS's access to the printer.
Getting a printer driver update is an entirely different experience. See:
See: https://support.hp.com/us-en/drivers/selfservice/hp-laserjet-p1500-printer-series/3435666/model/3435667
where it's said ==> HP Customer Support - Software and Driver Downloads ... Download Linux
drivers from the HP Linux Imaging and Printing Web site. I retrieved hplip-3.22.10
Then I attempted to run the installation programsh hplip-3.22.10.run but it has no way of dealing with Trisquel,
except perhaps by choosing ubuntu ... Opening the hplip-3.22.10 folder reveals one file, cups_drv.inc,
which is not a directory but which contains lines like these:cups_ppd_printers = \
ppd/hpcups/apollo-2100.ppd.gz \
ppd/hpcups/apollo-2150.ppd.gz \
...
ppd/hpcups/hp-laserjet_p1505.ppd.gz \
ppd/hpcups/hp-laserjet_p1505n-zxs.ppd.gz \ which I haven't been able to unzip. The second-
to-last one may contain a better printer driver, but I'll need help to install it.

Update: During the process of installing a new printer with this CUPS interface, there is an
opportunity to identify the printer by its PPD file.