HP scanjet 5590 scanner and similar HP scanner types do not work with El Capitan
My HP scanjet 5590 scanner no longer works after upgrading to El Capitan because HP never designed a scanner driver for it. This same problem exists with a number of other HP flat bed scanners.
Both Apple and HP tech support have no solution for the problem and few of the tech support personnel of either company are willing to admit there is a problem or realize there is a problem. Both Apple and HP have let their product users down badly. I was told by an industry insider that the problem occurred because HP refused to share its scanner code files with Apple during the development of El Capitan.
The Apple scanner Image Capture program is useless and a pain to use. The scans come out too small, have poor quality and the scanner page feeder will not function when using Image Capture.
MacBook Pro, OS X El Capitan (10.11.2)