Out of the blue, my print jobs for my networked printer no longer leave the "Processing" Status.
When I ping my printer IP, I get a response, so the network connection is available. And the TCP ports are open as well (see below.)
$ lpstat -l
RICOH-Aficio-SP-3510DN-54 bram 102400 Tue 31 May 2022 09:34:47 AM
Status: The printer may not exist or is unavailable at this time.
Alerts: job-printing
queued for RICOH-Aficio-SP-3510DN
The printer was working fine two days ago. I power-cycled both printer and computer.
~$ sudo /usr/lib/cups/backend/dnssd
DEBUG: Querying "RICOH\032Aficio\032SP\0323510DN\032\04075a879\041._ipp._tcp.local"...
DEBUG: Querying "RICOH\032Aficio\032SP\0323510DN\032\04075a879\041._pdl-datastream._tcp.local"...
DEBUG: Querying "RICOH\032Aficio\032SP\0323510DN\032\04075a879\041._printer._tcp.local"...
DEBUG: sent=0, count=3
DEBUG2: query_callback(browser=0x5561e7b64290, interfaceIndex=2, protocol=1, event=0, fullName="RICOH\032Aficio\032SP\0323510DN\032\04075a879\041._ipp._tcp.local", rrclass=1, rrtype=16, rdata=0x5561e7b64958, rdlen=291, flags=5, context=0x5561e7b63550)
DEBUG2: query_callback: "txtvers=1".
DEBUG2: query_callback: "rp=ipp/port1".
DEBUG2: query_callback: "note=local.".
DEBUG2: query_callback: "qtotal=1".
DEBUG2: query_callback: "priority=50".
DEBUG2: query_callback: "ty=RICOH Aficio SP 3510DN (75a879)".
DEBUG2: query_callback: "product=(RICOH Aficio SP 3510DN)".
DEBUG2: query_callback: "pdl=application/postscript,application/vnd.hp-PCL,application/vnd.hp-PCLXL,text/plain".
DEBUG2: query_callback: "adminurl=http://3510DN-75A879.local".
DEBUG2: query_callback: "usb_MFG=RICOH".
DEBUG2: query_callback: "usb_MDL=RICOH Aficio SP 3510DN".
DEBUG2: query_callback(browser=0x5561e7b64290, interfaceIndex=2, protocol=0, event=0, fullName="RICOH\032Aficio\032SP\0323510DN\032\04075a879\041._ipp._tcp.local", rrclass=1, rrtype=16, rdata=0x5561e7b64958, rdlen=291, flags=5, context=0x5561e7b63550)
...
Note: the above blurb from dnssd repeats 3 more times, not sure why.
Also, nmap reports that services are available:
$ nmap 10.0.1.3
Starting Nmap 7.80 ( https://nmap.org ) at 2022-05-31 11:07 PDT
Nmap scan report for 10.0.1.3
Host is up (0.0011s latency).
Not shown: 995 closed ports
PORT STATE SERVICE
21/tcp open ftp
80/tcp open http
515/tcp open printer
631/tcp open ipp
9100/tcp open jetdirect
Nmap done: 1 IP address (1 host up) scanned in 3.30 seconds
CUPS service is running:
$ systemctl status cups
● cups.service - CUPS Scheduler
Loaded: loaded (/lib/systemd/system/cups.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2022-05-31 11:04:55 PDT; 21min ago
TriggeredBy: ● cups.path
● cups.socket
Docs: man:cupsd(8)
Main PID: 855 (cupsd)
Status: "Scheduler is running..."
Tasks: 10 (limit: 18807)
Memory: 65.5M
CPU: 22.756s
CGroup: /system.slice/cups.service
├─ 855 /usr/sbin/cupsd -l
├─ 901 RICOH-Aficio-SP-3510DN 54 bram cv_stolk.pdf 1 "HQwtrmrkShading=Shading20 Resolution=600dpi PageSize=Letter HQwtrmr>
├─ 902 ipp://10.0.1.3 54 bram cv_stolk.pdf 1 "HQwtrmrkShading=Shading20 Resolution=600dpi PageSize=Letter HQwtrmrkFontNam>
├─ 992 RICOH-Aficio-SP-3510DN 54 bram cv_stolk.pdf 1 "HQwtrmrkShading=Shading20 Resolution=600dpi PageSize=Letter HQwtrmr>
├─ 993 RICOH-Aficio-SP-3510DN 54 bram cv_stolk.pdf 1 "HQwtrmrkShading=Shading20 Resolution=600dpi PageSize=Letter HQwtrmr>
├─ 994 /bin/sh -e -c cat
├─ 995 cat
├─1831 /usr/lib/cups/notifier/dbus dbus:// ""
├─1832 /usr/lib/cups/notifier/dbus dbus:// ""
└─2027 /usr/lib/cups/notifier/dbus dbus:// ""
May 31 11:04:55 deca systemd[1]: Starting CUPS Scheduler...
May 31 11:04:55 deca systemd[1]: Started CUPS Scheduler.
May 31 11:09:31 deca hpfax[2807]: [2807]: error: Failed to create /var/spool/cups/tmp/.hplip
OS: Ubuntu 22.04 LTS
Kernel: Linux 5.15.0-33-generic
Printer: RICOH Aficio SP 3510DN
