Copier with infinite tape around rollers with side tracking - has light source along edge with detector feeding logic circuit for control of roller
NL7809419A
Electrostatic copying machine with movable image recorder - has synchronisation station starting working cycle when sheet reaches given position
NL7809417A
Electrostatic copying machine with LV source - which supplies corona circuit via amplifier and includes microprocessor controlling transistor switch by signals derived from sensors
NL7809418A
Electrostatic copying machine with magnetic corona circuits - has series switch in each circuit opened and closed sequentially by control unit and has charging accumulator in form of capacitor
