[SOLVED] Scanner not working

Michael Piziak · 02-04-2021, 07:14 AM

I did a clean system install of Ubuntu 20.04 lts. Scanner is on the LaserJet Pro MFP M127fn.

The scanner worked with 2 software apps before, now it doesn't.
HPLIP is installed I believe. It does print.

michael@michael-HP-EliteDesk-800-G1-SFF:~$ dpkg -l hplip
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-==============-============-================================>
ii hplip 3.20.3+dfsg0-2 amd64 HP Linux Printing and Imaging Sy>
lines 1-6/6 (END)

wpeckham · 02-04-2021, 07:33 AM

In the previous installs when it worked, had you installed SANE and the SANE tools?

Michael Piziak · 02-04-2021, 11:57 AM

Quote:

Originally Posted by wpeckham

In the previous installs when it worked, had you installed SANE and the SANE tools?

Sane utilities was already installed. I installed "sane" with synaptic.
Rebooted. Still no luck.

ferrari · 02-04-2021, 01:09 PM

Do you have the plugin (proprietary firmware) installed?
https://developers.hp.com/hp-linux-i...ry_plugin.html

If not, open a terminal and run

Code:

hp-plugin

ferrari · 02-04-2021, 01:11 PM

BTW, please you also confirm the printing URI as reported by

Code:

lpstat -t

The HPLIP (hpaio) scanner driver required that the 'hp' printing backend is configured before it can work.

Michael Piziak · 02-04-2021, 03:50 PM

Quote:

Originally Posted by ferrari

Do you have the plugin (proprietary firmware) installed?
https://developers.hp.com/hp-linux-i...ry_plugin.html

If not, open a terminal and run

Code:

hp-plugin

michael@michael-HP-EliteDesk-800-G1-SFF:~$ hp-plugin

HP Linux Imaging and Printing System (ver. 3.20.3)
Plugin Download and Install Utility ver. 2.1

Copyright (c) 2001-18 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

HP Linux Imaging and Printing System (ver. 3.20.3)
Plugin Download and Install Utility ver. 2.1

Copyright (c) 2001-18 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

warning: GUI Modules PyQt4 and PyQt5 are not installed
error: hp-plugin requires GUI support (try running with --qt3). Try using interactive (-i) mode.
michael@michael-HP-EliteDesk-800-G1-SFF:~$

Michael Piziak · 02-04-2021, 03:52 PM

Quote:

Originally Posted by ferrari

BTW, please you also confirm the printing URI as reported by

Code:

lpstat -t

The HPLIP (hpaio) scanner driver required that the 'hp' printing backend is configured before it can work.

michael@michael-HP-EliteDesk-800-G1-SFF:~$ lpstat -t
scheduler is running
system default destination: HP-LaserJet-Pro-MFP-M127fn
device for HP-LaserJet-Pro-MFP-M127fn: hp:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ
device for HP-LaserJet-Pro-MFP-M127fn-Fax-2: hpfax:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ
HP-LaserJet-Pro-MFP-M127fn accepting requests since Thu 04 Feb 2021 04:43:43 PM EST
HP-LaserJet-Pro-MFP-M127fn-Fax-2 accepting requests since Wed 03 Feb 2021 07:02:23 PM EST
printer HP-LaserJet-Pro-MFP-M127fn is idle. enabled since Thu 04 Feb 2021 04:43:43 PM EST
printer HP-LaserJet-Pro-MFP-M127fn-Fax-2 is idle. enabled since Wed 03 Feb 2021 07:02:23 PM EST
michael@michael-HP-EliteDesk-800-G1-SFF:~$

ferrari · 02-04-2021, 03:55 PM

Ok, that confirms the hp backend is in use as expected.

Code:

hp:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ

Is the scanner enumerated via

Code:

scanimage -L

Michael Piziak · 02-04-2021, 05:16 PM

Quote:

Originally Posted by ferrari

Ok, that confirms the hp backend is in use as expected.

Code:

hp:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ

Is the scanner enumerated via

Code:

scanimage -L

not scan. this is the result

michael@michael-HP-EliteDesk-800-G1-SFF:~$ scanimage -L
device `hpaio:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ' is a Hewlett-Packard HP_LaserJet_Pro_MFP_M127fn all-in-one
michael@michael-HP-EliteDesk-800-G1-SFF:~$

ferrari · 02-04-2021, 05:45 PM

So scanner is detected by scanimage. Good.

From a terminal, do

Code:

scanimage > image.pnm

Report back with any errors. If none, check image.pnm (for a successful scan).

Michael Piziak · 02-04-2021, 09:36 PM

Quote:

Originally Posted by ferrari

So scanner is detected by scanimage. Good.

From a terminal, do

Code:

scanimage > image.pnm

Report back with any errors. If none, check image.pnm (for a successful scan).

michael@michael-HP-EliteDesk-800-G1-SFF:~$ scanimage > image.pnm
Output format is not set, using pnm as a default.
scanimage: open of device hpaio:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ failed: Error during device I/O
michael@michael-HP-EliteDesk-800-G1-SFF:~$

ferrari · 02-04-2021, 11:10 PM

You should enclose output within CODE tags when posting output like this

Code:

michael@michael-HP-EliteDesk-800-G1-SFF:~$ scanimage > image.pnm
Output format is not set, using pnm as a default.
scanimage: open of device hpaio:/usb/HP_LaserJet_Pro_MFP_M127fn?serial=CNB9H7FDXQ failed: Error during device I/O
michael@michael-HP-EliteDesk-800-G1-SFF:~$

Type like this...
[code]
output
[/code]

Refer to the '#' button in the advanced forum editor.

ferrari · 02-04-2021, 11:25 PM

BTW, I've read that this error can occur when the plugin is not installed. Referring back to your reply in post #6...you reported...

Code:

warning: GUI Modules PyQt4 and PyQt5 are not installed
error: hp-plugin requires GUI support (try running with --qt3). Try using interactive (-i) mode.
michael@michael-HP-EliteDesk-800-G1-SFF:~$

...so did you try running in interactive mode as it suggested?

Code:

hp-plugin -i

Michael Piziak · 02-05-2021, 05:53 AM

Quote:

Originally Posted by ferrari

BTW, I've read that this error can occur when the plugin is not installed. Referring back to your reply in post #6...you reported...

Code:

warning: GUI Modules PyQt4 and PyQt5 are not installed
error: hp-plugin requires GUI support (try running with --qt3). Try using interactive (-i) mode.
michael@michael-HP-EliteDesk-800-G1-SFF:~$

...so did you try running in interactive mode as it suggested?

Code:

hp-plugin -i

I did that and it installed the plug in.
Still not luck. Scanner application says Sane can't find device.

p.s. thank you for continuing to help me

ferrari · 02-05-2021, 11:29 AM

You're going to need to run 'hp-doctor' command to find whats missing or wrong I think.