Think tank 551 Printer does print but no scanner and device manager not finding device I/O error Kubuntu
Running latest version of Kubuntu.
Used automatic installer to Install new HP Think Tank 551 MFP including the latest version of HPLIP for USB.
HP Device manager not accessing scanner and no printer functions such as test page.
Says "Device is busy, powered down or unplugged (5002)"
HP Device manager often shows printer not available icon but does change to available icon when I access printer from other applications but still no HP device manager functions for printer or scanner.
HP device manager error: "Failed to Open Device 'hpaio:
Test page does print from Ubuntu printer manager and able to print documents from applications.
Also: Ubuntu skanlite does find two HP devices but neither work. Says: "Opening the selected scanner failed"...
Have tried completely removing all packages and remove printer but automatic installer does say it found version 3.20.6 installed anyway and it did uninstall and reinstall.
This has not fixed the problems...
Ubuntu printer manager does show two printers.
-Smart Tank Plus 550 Series, hpcups 3.20.6
-Smart Tank Plus 550 Series CN03E241Y1 driverless, cups-filters 1.27.4
Both versions do print test page from ubuntu and can set either one as default.
Do not know why two printers keep showing up after remove and reinstall.
Printer Doctor says:
" INSTALLED CUPS PRINTER QUEUES |
-------
Smart_Tank_Plus_550
-------------------
Type: Printer
Device URI: hp:/usb/
PPD: /etc/cups/
warning: Failed to read /etc/cups/
PPD Description:
Printer status: printer Smart_Tank_Plus_550 is idle. enabled since Sun 16 Aug 2020 09:22:46 PM MDT
Communication status: Good
Smart_Tank_
-------
Type: Unknown
Device URI: implicitclass:
PPD: /etc/cups/
warning: Failed to read /etc/cups/
PPD Description:
Printer status: printer Smart_Tank_
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend for HP-Devices.
--------------
| PERMISSION |
--------------
USB Smart_Tank_Plus_550 Required - - OK Node:'/
Checking Permissions....
Checking for Configured Queues....
warning: Fail to read ppd=/etc/
warning: Insufficient permission to access file /etc/cups/
warning: Could not complete Queue(s) configuration check
Checking for HP Properitery Plugin's....
No plug-in printers are configured.
Diagnose completed... "
Please help.
Kindest regards; Scorch.
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