> Mick (miin) wrote on 2020-03-27: Re: scan with Laserjet MFP-M28 fails #62
> Scanner works with hplip-3.20.3 and updates enabled.
Yes, this is right. Both it works with hplip-3.21.2.
This page is one of the google targets when searching why 3.18.4 not working (doesn't allow to scan with Laserjet MFP-M28 failing after "Warming up..." when "Scanning...").
Maybe please keep for other people (if they use similar environment like I do, but I think that for Ubuntu this info could be useful too in someway). For rhel I used these commands to reinstall 3.21.2 above default 3.18.4:
3. Install 3.21.2 above default version with dependency check skipping (since non possible to remove default one):
sudo rpm --nodeps --force --install ~/install/hplip-3.21.2-RHEL8-x86_64.rpm
4. Fix python to be both /usr/bin/python and 3.6 one (that is default one for my system):
sudo ln /usr/bin/python3.6 /usr/bin/python
5. Download required hp-plugins for 3.21.2:
sudo hp-plugin
> Mick (miin) wrote on 2020-03-27: Re: scan with Laserjet MFP-M28 fails #62
> Scanner works with hplip-3.20.3 and updates enabled.
Yes, this is right. Both it works with hplip-3.21.2.
This page is one of the google targets when searching why 3.18.4 not working (doesn't allow to scan with Laserjet MFP-M28 failing after "Warming up..." when "Scanning...").
Maybe please keep for other people (if they use similar environment like I do, but I think that for Ubuntu this info could be useful too in someway). For rhel I used these commands to reinstall 3.21.2 above default 3.18.4:
1. Download from HP 3.21.2: /developers. hp.com/ hp-linux- imaging- and-printing/ gethplip
https:/
2. Reinstall default version:
sudo dnf reinstall hplip hplip-common hplip-gui hplip-libs libsane-hpaio
3. Install 3.21.2 above default version with dependency check skipping (since non possible to remove default one): hplip-3. 21.2-RHEL8- x86_64. rpm
sudo rpm --nodeps --force --install ~/install/
4. Fix python to be both /usr/bin/python and 3.6 one (that is default one for my system):
sudo ln /usr/bin/python3.6 /usr/bin/python
5. Download required hp-plugins for 3.21.2:
sudo hp-plugin
6. Now scanning works Ok:
hp-scan -g -r200