We are going to need more than a truncated title in order to try and assist you.
LiDE 220 Scnr. I get a msg: Release lock switch ... and code 2, 179, 12 // told to uninstall DLL HOW
The scanner itself is about 7 yrs old. Did it work previously?
If so, with what operating system and build? Since you mention DLL I suspect windows, but cannot be sure.
Release lock switch is a mechanical issue. This is engaged when the device is shipped from Canon. It could also be engaged if you planned to transport the scanner. It has to be unlocked for the scanner to work properly. Its located on the bottom of the device, its clearly marked.
If you want more information about the error, you'll need to provide a screen shot and more information about the device, its history and your operating environment.
Bay Area - CA
~R5 C (22.214.171.124) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw ~Pixel 8 ~CarePaks Are Worth It
I have this problem too - ever since Windows 10 update a week ago.
Scanner worked the week before and IF, on occasions, it agrees that it is not locked, it scans and gives a black page.
Software uninstalled and latest version re-installed from Canon website, still no luck.
I am tired of buying more Canon Lide's whenever Windows updates - this is the second I have purchased in a space of 5 years...
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.