Firefox non stampa le pagine web

si da file pdf stampa mentre selezionando la stampante e cliccando su stampa appare un messaggio che dice che la stampa è attivata ma poi compare il messaggio di stampa interrotta. Lo stesso Firefox 85.0.1 (64 bit) su xubuntu 20.04.1 funziona bene eanche da Chromium stampa senza problemi

da menu-->print-->print-->stampa su file crea file.pdf che poi posso stampare mentre se seleziono la stampante mi da i messaggi sopra riportati

p.s. da cups, da browser http://127.0.0.1:631 nei "job" riesci a vedere i dettagli dell'errore? scusa dato che sono un principiante non capisco cosa devo fare

quando accedo all'indirizo: http://127.0.0.1:631/ mi esce una videata con quello che è indicato sotto ma non capisco come accedere a "jobs" per vedere la descrizione dell'errore

CUPS 2.3.1

CUPS is the standards-based, open source printing system developed by Apple Inc. for macOS® and other UNIX®-like operating systems. CUPS for Users

Overview of CUPS

Command-Line Printing and Options

User Forum CUPS for Administrators

Adding Printers and Classes

Managing Operation Policies

Using Network Printers

Firewalls

cupsd.conf Reference CUPS for Developers

CUPS Programming Manual

Filter and Backend Programming

Developer Forum

accedendo all'indirizzo: http://127.0.0.1:631/ mi esce la videata che riporto sotto ma non so come accedere ai "jobs" e vedere la descrizione dell'errore

CUPS 2.3.1

CUPS is the standards-based, open source printing system developed by Apple Inc. for macOS® and other UNIX®-like operating systems.

CUPS for Users Overview of CUPS Command-Line Printing and Options User Forum

CUPS for Administrators Adding Printers and Classes Managing Operation Policies Using Network Printers Firewalls cupsd.conf Reference

CUPS for Developers CUPS Programming Manual Filter and Backend Programming Developer Forum

Stampe

Search in Jobs:

Jobs listed in print order; held jobs appear first. ID Name User Size Pages State Control MG3000-series-65 Unknown Withheld 48k Unknown stopped "Filter failed"

probabilmente la causa è: stopped "Filter failed"

come si fa ad inserire la videata del jobs, se clicco sul simbolo dell'immagine mi chiede "enter image url". Ho salvato la videata come png

il pacchetto "filter" sembra esistere sia in Xubuntu che in Ubuntu. Quello sotto riportato e di Ubuntu

vittorio@vittorio-Lenovo:~/Scrivania$ dpkg -l | grep filter ii cnijfilter2 5.40-1 amd64 IJ Printer Driver for Linux. ii cups-filters 1.27.4-1 amd64 OpenPrinting CUPS Filters - Main Package ii cups-filters-core-drivers 1.27.4-1 amd64 OpenPrinting CUPS Filters - Driverless printing ii iptables 1.8.4-3ubuntu2 amd64 administration tools for packet filtering and NAT ii libavfilter7:amd64 7:4.2.4-1ubuntu0.1 amd64 FFmpeg library containing media filters - runtime files ii libcupsfilters1:amd64 1.27.4-1 amd64 OpenPrinting CUPS Filters - Shared library ii libip4tc2:amd64 1.8.4-3ubuntu2 amd64 netfilter libip4tc library ii libip6tc2:amd64 1.8.4-3ubuntu2 amd64 netfilter libip6tc library ii libnetfilter-conntrack3:amd64 1.0.7-2 amd64 Netfilter netlink-conntrack library ii libnfnetlink0:amd64 1.0.1-3build1 amd64 Netfilter netlink library ii libnftnl11:amd64 1.1.5-1 amd64 Netfilter nftables userspace API library ii librevenge-0.0-0:amd64 0.0.4-6ubuntu5 amd64 Base Library for writing document interface filters ii libseccomp2:amd64 2.4.3-1ubuntu3.20.04.3 amd64 high level interface to Linux seccomp filter ii libwps-0.4-4:amd64 0.4.10-1build1 amd64 Works text file format import filter library (shared library) ii libxtables12:amd64 1.8.4-3ubuntu2 amd64 netfilter xtables library ii sed 4.7-1 amd64 GNU stream editor for filtering/transforming text ii thunderbird 1:68.10.0+build1-0ubuntu0.20.04.1 amd64 Email, RSS and newsgroup client with integrated spam filter ii ufw 0.36-6 all program for managing a Netfilter firewall ii xdg-dbus-proxy 0.1.2-1 amd64 filtering D-Bus proxy

PS Ho cliccato si "Browser" compare una finestra con: enter url - http:// - upload image - sfoglia ma se carico l'immagine .png mi da errore

errore che compare quando carico file.png

Error uploading file. Please contact the site administrator. Thank you. [Errno 13] Permission denied: '/srv/chiedi.ubuntu-it.org/www/osqa/forum/upfiles/Stampe_Cups_2.3.1.png'

$ dpkg -l | grep filter suXubuntu

vittorio@vittorio-Lenovo:~/Scrivania$ dpkg -l | grep filter ii cnijfilter2 5.40-1 amd64 IJ Printer Driver for Linux. ii cups-filters 1.27.4-1 amd64 OpenPrinting CUPS Filters - Main Package ii cups-filters-core-drivers 1.27.4-1 amd64 OpenPrinting CUPS Filters - Driverless printing ii iptables 1.8.4-3ubuntu2 amd64 administration tools for packet filtering and NAT ii libavfilter7:amd64 7:4.2.4-1ubuntu0.1 amd64 FFmpeg library containing media filters - runtime files ii libcupsfilters1:amd64 1.27.4-1 amd64 OpenPrinting CUPS Filters - Shared library ii libip4tc2:amd64 1.8.4-3ubuntu2 amd64 netfilter libip4tc library ii libip6tc2:amd64 1.8.4-3ubuntu2 amd64 netfilter libip6tc library ii libnetfilter-conntrack3:amd64 1.0.7-2 amd64 Netfilter netlink-conntrack library ii libnfnetlink0:amd64 1.0.1-3build1 amd64 Netfilter netlink library ii libnftnl11:amd64 1.1.5-1 amd64 Netfilter nftables userspace API library ii librevenge-0.0-0:amd64 0.0.4-6ubuntu5 amd64 Base Library for writing document interface filters ii libseccomp2:amd64 2.4.3-1ubuntu3.20.04.3 amd64 high level interface to Linux seccomp filter ii libwps-0.4-4:amd64 0.4.10-1build1 amd64 Works text file format import filter library (shared library) ii libxtables12:amd64 1.8.4-3ubuntu2 amd64 netfilter xtables library ii sed 4.7-1 amd64 GNU stream editor for filtering/transforming text ii thunderbird 1:68.10.0+build1-0ubuntu0.20.04.1 amd64 Email, RSS and newsgroup client with integrated spam filter ii ufw 0.36-6 all program for managing a Netfilter firewall ii xdg-dbus-proxy 0.1.2-1 amd64 filtering D-Bus proxy vittorio@vittorio-Lenovo:~/Scrivania$