The following information is provided as is, and the authors take no responsibility for the correctness.
CPCA is a protocol unique to Canon that incorporates DPA’s (Document Printing Application ISO-10175) abstract concept and expands to the management of peripheral devices including the printer. CPCA’s original objective was not the printer but to enable a standard management of the devices connected to the network.
Reference manuals can be downloaded from the Canon Business Solutions Developer Program Site:
http://www.developers.canon-europa.com/