The level of the signal ERROR(active low) becomes ‘low’ when the printer is in
(a) Paper end state
(b) Offline state
(c) Error state
(d) All of the mentioned
This question was addressed to me in quiz.
I'd like to ask this question from Modes of Operation of 8255 in portion Basic Peripherals and their Interfacing with 8086/88 of Microprocessor