Copying machine control apparatus comprising variable length program control

A copying machine control apparatus comprising:

• a moving photoconductive member;
• pulse generator means for producing pulses in response to incremental movements of the photoconductive member;
• presettable counter means for counting the pulses;
• decoder means for producing set output signals in response to counts in the counter means;
• coder means responsive to the set output signals produced by the decoder means constructed to apply a first output signal to the counter means when the count in the counter means has a first value and apply a second output signal to the counter means when the count in the counter means has a second value, said counter means being constructed to change its count from the first value to a third value in response to the first output signal and to change its count from the second value to a fourth value in response to the second output signal from the coder means;
• the decoder means being further constructed to produce control output signals in response to predetermined counts in the counter means;
• and
• copy operation control means for controlling an operation of the apparatus in response to the control output signals from the decoder means.