Your printer got grabbed by ippusbxd because it supports the modern,
driverless approach. HPLIP is not required for it any more. The printer
should work with the "escl" SANE backend of SANE 1.0.29.
Please make sure your Focal system is completely updated.
If so, please enter the following commands and post the output here:
dpkg -l | grep sane
scanimage -L
** Changed in: hplip
Status: New => Invalid
** Changed in: hplip (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1871011
Title:
USB scanning broken on focal --> hpmud and ippusbxd conflict
Status in HPLIP:
Invalid
Status in hplip package in Ubuntu:
Incomplete
Bug description:
On Ubuntu 20.04 focal (with -proposed enabled). HPLIP=3.20.3.
Previously there was a libmtp (udev) bug erroneously detecting HP
printers as mtp devices. This was fixed. Now, I can try to scan-- from
both simple-scan and hp-scan, hplip errors out:
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 427: Found
interface conf=0, iface=1, altset=0, index=1
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 389: Active
kernel driver on interface=1 ret=0
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 515: invalid
claim_interface 7/1/2: Device or resource busy
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 427: Found
interface conf=0, iface=0, altset=1, index=3
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 389: Active
kernel driver on interface=0 ret=0
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 515: invalid
claim_interface 7/1/4: Device or resource busy
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 427: Found
interface conf=0, iface=3, altset=0, index=9
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 389: Active
kernel driver on interface=3 ret=0
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 515: invalid
claim_interface ff/4/1: Device or resource busy
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 427: Found
interface conf=0, iface=0, altset=0, index=11
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 389: Active
kernel driver on interface=0 ret=0
Apr 05 21:27:37 dani-mbp15 simple-scan[3464]: io/hpmud/musb.c 515: invalid
claim_interface ff/cc/0: Device or resource busy
Printer/scanner is an Officejet 4635. Scanning previously worked just
fine a few months ago. Regression?
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