Electrophotographic copying machine

Abstract

Abstract AN ELECTROPHOTOGRAPHIC COPYING MACHINE OF THE TYPE IN WHICH BOTH OF AN ORIGINAL TO BE REPRODUCED AND A COPY PAPER ARE MOVED IN SYNCHRONISM WITH EACH OTHER RELATIVE TO A SLIT EXPOSURE OPTICAL SYSTEM WHEREIN THE COPY PAPER, UPON ADMISSION INTO A CHARGING STATION, ACTUATES A COMNON SWITCH WHICH ENERGIZES THE CHARGER, THE LIGHT SOURCE IN THE EXPOSURE OPTICAL SYSTEM AND AN ELECTROMAGNETIC CLUTCH FOR COUPLING AN ORIGINAL CARRIER DEVICE TO A DRIVE MECHANISM UNTIL THE COPY PAPER PASSES THROUGH THE EXPOSURE STATION. UPON DISCHARGE OF THE COPY PAPER FROM THE EXPOSURE STATION, THE CHARGER, LIGHT SOURCE AND CLUTCH ARE DE-ENERGIZED WHILE A REVERSE CLUTCH IS ENERGIZED SO AS TO RETURN THE CARRIER TO THE INITIAL POSITION. IN ORDER TO ATTAIN THE PRECISE REGISTRATION OF THE LEADING EDGES OF THE COPY PAPER AND ORIGINAL, A DEVICE FOR DRIVING THE CARRIER AFTER PREDETERMINED TIME DELAY WHEN SAID ELECTROMAGNETIC CLUTCH IS ENERGIZED IS PROVIDED ALONG WITH A MEMBER FOR LOCKING THE CARRIER IN THE INITIAL POSITION UNTIL A START BUTTOM IS DEPRESSED, AND A MECHANISM FOR PREVENTING ANY SLIPPAGE OF THE CARRIER DRIVE CABLE.

Inventors

• 👤 Shigeru Suzuki
• 👤 Yasumori Nagahara
• 👤 Keiji Sugita

Bibliographic Details