With YaST2 I have configured a HP ColorLaserJet MFP M282nw device both as a printer and scanner via usb and wifi connections.
Printing works fine, but trying to scan requires an extra HP driver plug-in installation which fails each time.
Scenario for the wifi connected scanner using hp-setup (via YaST2):
> scanimage -L
device `hpaio:/net/HP_ColorLaserJet_MFP_M282-M285?ip=192.168.1.3' is a Hewlett-Packard HP_ColorLaserJet_MFP_M282-M285 all-in-one
Then try to scan from two scanner applications, skanlite and simple-scan:
> skanlite
Could not open the scanner
"hpaio:/net/HP_ColorLaserJet_MFP_M282-M285?ip=192.168.1.3"
sane_open(" "hpaio:/net/HP_ColorLaserJet_MFP_M282-M285?ip=192.168.1.3" ", &handle) failed! status = Error during device I/O
or
> simple-scan
HP Device Manager - Plug-in Installer:
HP Device requires proprietary plug-in which is missing.
Click 'Next' to continue plug-in installation
Next
An additonal driver plug-in is required to operate this printer. You may donload the plug-in directly from an HP autorized server (recommended), or, if already have a copy of this file, you can specify a path to the file (advanced).
Plug-in installation choice
* Download and installed the plug-in from an HP authorized server (recommended)
Next
/home/terje/.hplip/hplip-3.20.11-plugin.run file does not match its checksum. File may have been corrupted or altered
OK
Failed to install Plug-in.
Either you have chosen to skip the Plug-in installation or entered incorrect Password
OK
ls /home/terje/.hplip
hplip.conf
The same happends on two stationary workstations, usb and wifi connected respectively to the HP device, and both installed with Leap 15.3 from scratch (if I remember right).
However on a third laptop machine I upgraded from Leap 15.2 to 15.3, scanning works. That is I think the plug-in was installed on Leap 15.2 first.
So the question is, where is the HP plug-in found and possibly where is it installed, and how to verify if there is some versions conflicts?
Here is the hplip packages installed on all three machines (no hp plug-in seen):
# zypper se -is hplip
Loading repository data...
Reading installed packages...
S | Name | Type | Version | Arch | Repository
---+------------------+---------+-------------+--------+----------------
i+ | hplip | package | 3.20.11-2.1 | x86_64 | Main Repository
i+ | hplip-hpijs | package | 3.20.11-2.1 | x86_64 | Main Repository
i+ | hplip-sane | package | 3.20.11-2.1 | x86_64 | Main Repository
i+ | hplip-scan-utils | package | 3.20.11-2.1 | x86_64 | Main Repository