Color OneScanner 600/27: Dispatcher Isn‘t Releasing RAM (5/96)

I am using an Apple ColorOne 600/27 Scanner and the Dispatcher software. After scanning a document with Dispatcher, then closing the application, Photoshop will not open because of an Out of Memory error. I checked "About this Macintosh" and there is 10 MB of RAM missing. This is the amount allocated to Dispatcher. I had 55 MB of RAM allocated to Photoshop, and when I reduce the amount of memory Photoshop uses, it opens properly. I can also restart my Macintosh and then open Photoshop without changing the amount of RAM allocated to Photoshop.
We believe you encountered a ColorSync 2.0.1 problem that should be addressed in a future release of ColorSync. What is likely happening is a ColorSync PPC library code fragment is not getting unloaded. Although the memory fragment is small in size, if it is the middle of a large contiguous block of memory, then the "Largest Unused Block" of memory is reduced proportionately.

As you have discovered, the workaround is to quit the application then restart your Macintosh computer. To minimize the problem, minimize the launching. You should also quit the Dispatcher software before launching and working with your other applications that require a lot of RAM.
Published Date: Feb 18, 2012