Can't scan on LinuxMint20

Bug #1886260 reported by FrankM on 2020-07-04
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
HPLIP
Undecided
Unassigned

Bug Description

My HP MFP is M28a.

hp-check.log -> https://pastebin.com/F8eWciWY

brian_p (claremont102) wrote :

Please give the outputs from

lsusb -v | -A 4 bInterfaceClass.*7
systemctl list-units ippusbxd*
scanimage -L

brian_p (claremont102) wrote :

> bInterfaceClass 7 Printer
> bInterfaceSubClass 1 Printer
> bInterfaceProtocol 4
> iInterface 17 IPP Printer

"bInterfaceProtocol 4" tells us that the M28a provides an
IPP-over-USB facility.

ippusbxd@005:002.service makes the facility available for printing
and scanning. In doing this it commandeers the bus. Only driverless
methods of printing and scanning are possible. ESCL is a driverless
protocol, therefore

 scanimage -d "escl:http://127.0.0.1:60000"

should work. hpaio is a vendor driver, so

 scanimage -d "hpaio:/usb/HP_LaserJet_MFP_M28-M31?serial=XXXXXXXXX"

will not work.

Test after doing

 systemctl stop ippusbxd@005:002.service

Cheers,

Brian.

brian_p (claremont102) wrote :

Just in case this issue is not understood. It is not an HPLIP
bug.

FrankM (frank-mankel) wrote :

@brian_p: Thanks, it works. When i stop this service all is fine. I will disable this service.

Greetings
Frank

root@frank:~# systemctl status ippusbxd@005:002.service
● ippusbxd@005:002.service - Daemon to make IPP-over-USB printers available as network printers (005:002)
     Loaded: loaded (/lib/systemd/system/ippusbxd@.service; static; vendor preset: enabled)
     Active: inactive (dead)

Jul 09 21:28:47 frank-MS-7C37 systemd[1]: Starting Daemon to make IPP-over-USB printers available as network printers (005:002)...
Jul 09 21:28:47 frank-MS-7C37 systemd[1]: Started Daemon to make IPP-over-USB printers available as network printers (005:002).
Jul 09 21:31:19 frank-MS-7C37 systemd[1]: Stopping Daemon to make IPP-over-USB printers available as network printers (005:002)...
Jul 09 21:31:19 frank-MS-7C37 ippusbxd[56398]: 60000|56416|
Jul 09 21:31:19 frank-MS-7C37 systemd[1]: ippusbxd@005:002.service: Succeeded.
Jul 09 21:31:19 frank-MS-7C37 systemd[1]: Stopped Daemon to make IPP-over-USB printers available as network printers (005:002).

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