An electrostatic copying apparatus and an auxiliary unit detachably mounted on the electrostatic copying apparatus to diversify the mode of image formation. The electrostatic copying apparatus includes a paper conveying passage, a paper feed means for feeding paper to the paper conveying passage and...http://www.google.fr/patents/US4766467?utm_source=gb-gplus-shareBrevet US4766467 - Electrostatic copying apparatus and auxiliary unit capable of being detachably mounted thereon
Electrostatic copying apparatus and auxiliary unit capable of being ...
