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bbfa235
(Get the code!)
Hi,
I bought a HP LaserJet Pro MFP M28w about a week ago and I'm also affected by this bug.
Here is what the documentation from HP says
Model Name : HP LaserJet Pro MFP M28w
Min. HPLIP Version : 3.18.4
Driver Plug-in : No
Support Level : Full
Print Mode : Mono
Scan to PC : Yes
PC Send Fax : No
Connectivity : USB,Network
https:/
Ubuntu MATE 16.04 LTS (32 bit) is shipped with HPLIP 3.16.3 so I downloaded and installed the latest version (3.19.1) from HP
https:/
I was able to set up the printer, configure the WiFi through a temporary USB connection, print and copy. But I couldn't scan...
First of all, despite what the documentation above says, I've been asked to install a plug-in.
Authentication and validation of the plug-in fails. And even if I still want to install it, the installation fails.
I had to download and install manually from
https:/
This plug-in installation bug has been reported at least twice :
https:/
https:/
I can see and hear the scanner's sensor moving left to right but I get the "Error during device I/O (code=9)".
I installed in dual boot a fresh Ubuntu MATE 18.04 LTS (32 bit) that is shipped with HPLIP 3.17.10. Had the same problems after installing HPLIP 3.19.1.
I noticed that people reported that scanning was to slow on the same model
https:/
https:/
So I had some hope for scanning to work, albeit not as fast as one would expect... I installed HPLIP 3.18.10 and its matching plug-in on Ubuntu MATE 18.04 LTS (32 bit). Not a fresh install anymore though, as I installed HPLIP 3.18.10 after HPLIP 3.19.1. Same problem.
I removed the "hp_" prefix as suggested, with the following command
sudo sed -i 's/hp_laserjet_
to no avail.
I wanted to try Ubuntu MATE 18.10 that is shipped with HPLIP 3.18.7. That would be the first system with the minimum HPLIP version requirement met by default (>=3.18.4). Unfortunately, 32 bit is not supported anymore by Ubuntu. Not only there is no i386 ISO available, but the system prevents me from upgrading from 18.04 (at least in the GUI, I don't think I tried with the CLI). That might be worth trying by someone with a 64 bit computer.
As a workaround, I use the modified version of scan.py by Lucazade. Works for me.
There was a feature called "webscan" on my now dead HP Photosmart 5524 that allowed me to scan from the printer's embedded web server (EWS). I haven't found a similar feature on my HP LaserJet Pro MFP M28w.
How do we get HP to acknowledge the problem and lift a finger ? Will having enough people hitting "affectsmetoo" get HP's attention ?
Full Linux support, as claimed in the documentation, is one of the main factors when purchasing a new printer.
Last but not least, I take my hat off to brian_p. Thank you !