Actually, I solved the problem, found out that the cartridge was empty (only in for a couple of weeks, but low ink volume is another issue) and the print function was set for 8 copies. Therefore I think it didn't print due to the lack of ink and thn it tried to not print 8 times (altho rapidly), and I stopped it before it got to 8. New cartridge - and everything seems ok. But I do appreciate the diagnostic instructions for the future.
Thanks,
KBL