Following the installation of El Capitan my Microtek S480 scanner failed to operate. I enquired with Microtek and received this answer. Not very helpful,
It seems the Microtek scanners with this chip are now redundant with El Capitan!!!!! They were great scanners and now I'll have to find another that will work with my iMac. Very disappointing.
Doug
Email from Microtek:
Dear Customer,
My name is David Lee, the technical support of Microtek in Taiwan ( Time Zone : GMT + 08:00 ).
It is sorry there is no Microtek scanner driver S/W, ScanPotter, can support ScanMaker s480 to work under Mac OS X EL Capitan ( 10.11.x ) system.
ScanPotter can not open and support ScanMaker s480 to work under Mac OS X EL Capitan ( 10.11.x ) system due to the scanner's main board included the ASIC chipset : SQ113A3.1 inside and list as below picture.
The image processing chipset : SQ113A3.1 is designed by the third party IC company and its scanner driver is offered by this IC company also. It is because this IC company is close for years, hence, our S/W engineer in MII RDC can not get the support from this IC company, modify the scanner driver and keepScanMaker s480 work under Mac OS X EL Capitan ( 10.11.x ) system.
Finally, thank you for your kind understanding.
Sincerely yours,
David Lee
Technical Support Center / MII
Microtek International Inc.
E-mail : David.Lee@microtek.com.tw