Dell 2155 cn / cdn Printer on Debian 11
There are multiple options for installing the 2155 printer.
This is now about 10 years old, and the Dell drivers are 32 bit.
A workaround is to try using the 3000cn foomatic drivers instead and see how those work.
The old way, is to use the Dell vendor provided drivers. They are in Redhat RPM format and require conversion to Debian format to install.
Install alien for converting package formats:
apt install alien
Download Dell 2155 Linux drivers from dell.com website:
https://www.dell.com/support/home/en-si/product-support/product/dell-2155cn-cdn/drivers
Unzip the bundle:
alien Dell-2155-Color-MFP-1.0-1.i686.rpm
Warning: Skipping conversion of scripts in package Dell-2155-Color-MFP: postinst postrm
Warning: Use the --scripts parameter to include the scripts.
Dell-2155-Color-MFP-1.0-1.i686.rpm is for architecture i386 ; the package cannot be built on this system