You do not have /dev/usblp0 as HPLIP uncouples your printer from the
Linux kernel (and /dev/usblp0 is a kernel feature). So you can poll the
printer's device ID only via HPLIP. To do so, enter
lpinfo -l -m
to make CUPS searching for printers. CUPS also asks HPLIP and so you
will get an entry like
Device: uri = hp:/usb/HP_LaserJet_3390?serial=00CNMJP81545
class = direct
info = HP LaserJet 3390 USB 00CNMJP81545 HPLIP
make-and-model = HP LaserJet 3390
device-id = MFG:HP;MDL:HP LaserJet 3390;CLS:PRINTER;DES:HP LaserJet
3390;SN:00CNMJP81545;
somewhere in the output which contains the printer's device ID in the
last line.
Or run
hp-info
select your printer and you find a line with the device ID in the
output.
To get the device ID from the kernel using the programs mentioned in
earlier comments in this bug report do
sudo /etc/init.d/hplip stop
sudo rmmod usblp
sudo modprobe usblp
to recouple the printer to the kernel, then do
sudo getusbprinterid.pl /dev/usblp0
to see the ID and
sudo /etc/init.d/hplip start
to restart HPLIP that you can print again.
** Changed in: hplip (Ubuntu)
Status: Unconfirmed => Rejected
--
HP Deskjet 5150 shows up as an HP Deskjet 5100 in various places
https://bugs.launchpad.net/bugs/79607
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