Dirty rollers or a slightly misaligned paper guide can prevent the machine from completing its "stabilization" sequence.
The machine’s internal "Pickup Feed System" expects a sheet of paper to pass a specific sensor within a millisecond-perfect window. If it misses this window, it triggers code 9903. konica minolta code 9903
: Using paper that is damp, wrinkled, or outside of the manufacturer's supported specifications. Dirty rollers or a slightly misaligned paper guide