Xerographic reproducing apparatus

Claim 1

IN A XEROGRAPHIC APPARATUS, THE COMBINATION OF A XEROGRAPHIC DRUM JOURNALED FOR ROTATION, CHARGING MEANS POSITIONED TO PLACE A UNIFORM ELECTROSTATIC CHARGE ON SAID XEROGRAPHIC DRUM, A DOCUMENT CONVEYOR POSITIONED TO FEED A DOCUMENT TO BE REPRODUCED, SAID DOCUMENT CONVEYOR INCLUDING A DRIVEN FEED ROLLER, AN IDLER ROLLER PIVOTALLY MOUNTED ADJACENT SAID DRIVEN FEED ROLLER FOR MOVEMENT FROM A FIRST POSITION IN WHICH SAID IDLER ROLLER IS OUT OF COOPERATIVE RELATION TO SAID DRIVEN FEED ROLLER TO A SECOND POSITION IN WHICH SAID IDLER ROLLER IS IN COOPERATIVE DOCUMENT ADVANCING RELATION TO SAID DRIVEN FEED ROLLER, AND BIASING MEANS CONNECTED TO SAID IDLER ROLLER FOR NORMALLY BIASING SAID IDLER ROLLER INTO SAID SECOND POSITION; A LENS POSITIONED INTERMEDIATE SAID DOCUMENT CONVEYOR AND SAID XEROGRAPHIC DRUM TO PROJECT A LIGHT IMAGE FROM A MOVING DOCUMENT FED BY SAID DOCUMENT CONVEYOR ONTO SAID XEROGRAPHIC DRUM TO FORM AN ELECTROSTATIC LATENT IMAGE THEREON, DEVELOPER MEANS POSITIONED ADJACENT SAID XEROGRAPHIC DRUM TO DEVELOP SAID LATENT ELECTROSTATIC IMAGE ON SAID DRUM, A TRAY TO SUPPORT A STACK OF PAPER, A SHEET CONVEYOR HAVING AT LEAST ONE PAPER GRIPPER POSITIONED ADJACENT SAID XEROGRAPHIC DRUM AND BETWEEN SAID TRAY AND SAID XEROGRAPHIC DRUM, PAPER FEED AND SEPARATOR MEANS POSITIONED TO SUCCESSIVELY FEED SINGLE SHEETS OF PAPER TO SAID PAPER GRIPPER ON SAID SHEET CONVEYOR, TRANSFER MEANS POSITIONED ADJACENT SAID XEROGRAPHIC DRUM TO EFFECT TRANSFER OF A DEVELOPED IMAGE FROM SAID XEROGRAPHIC DRUM ONTO A SHEET OF PAPER CARRIED BY SAID SHEET CONVEYOR, DRIVE MEANS CONNECTED TO SAID XEROGRAPHIC DRUM, SAID DOCUMENT CONVEYOR AND SAID SHEET CONVEYOR TO MOVE SAID XEROGRAPHIC DRUM, SAID DOCUMENT CONVEYOR AND SAID SHEET CONVEYOR AT PREDETERMINED SPEEDS RELATIVE TO EACH OTHER, AND MEANS CONNECTED TO SAID XEROGRAPHIC DRUM TO MOVE SAID IDLER ROLLER FROM SAID FIRST POSITION TO SAID SECOND POSITION AND TO ACTUATE SAID PAPER FEED AND SEPARATOR MEANS TO ADVANCE A SHEET OF PAPER TO SAID SHEET CONVEYOR IN TIMED RELATION TO THE MOVEMENT OF SAID IDLER ROLLER FROM SAID FIRST POSITION TO SAID SECOND POSITION.