Mechanically actuated photocopy machine

Claim 1

An apparatus for reproducing the image of an object on an electrophotosensitive sheet material, said apparatus comprising: a. first transfer means to advance said sheet material into and through a charger zone disposed generally adjacent and below one side of said first transfer means; b. charger means in said charger zone including spaced corona charging units to deposit an electrostatic charge of opposite polarity on each side of said sheet material; c. second transfer means to receive said sheet material after charging and advance same into an exposure zone disposed generally below said charger zone; d. exposure plane means in said exposure zone for positioning the charged sheet material during exposure; e. object plane means disposed generally in horizontally spaced relation to the opposite side of said first transfer means and in laterally and vertically spaced relation to said exposure plane means; f. means defining a light path between said object plane means and said exposure plane means for exposing the charged sheet material to a reflected light image of the object to be reproduced; g. third transfer means to receive said sheet material after exposure and advance same into and laterally through a developing zone disposed generally below said exposure zone; h. developing means in said developing zone, including charged marking particles suspended in liquid medium, to develop the electrostatic latent image on said sheet material after exposure; i. means disposed in horizontally spaced relation to said developing zone, for receiving the developed sheet material and advancing same in a generally lateral path of travel opposite in direction to its path of travel through said charger zone, and for removing the liquid portion of said developing means; j. continuous drive means; k. one-cycle drive train means for operating in synchronization elements to produce a single copy of the object to be reproduced; l. manually initiated first camming means adapted to engage and disengage said continuous drive means with said oNe-cycle drive train means; m. multiple-station member associated with said first camming means, said member being manually prepositioned and responsive to pawl means associated with said one-cycle drive train means to restore said member one station for each cycle completed until said first camming means is restored to the disengaging position; n. first switching means associated with said first camming means for energizing said corona charging units; o. feed means associated with said one-cycle drive train means to initiate feed of electrophotosensitive sheet material from a magazine to said first transfer means; p. exposure illuminating means; q. second switching means to energize said exposure illuminating means; r. first spiral camming means associated with said one-cycle drive train means and adapted to actuate said second switching means; s. second spiral camming means for manually and adjustably prepositioning said second switching means in relation to said first spiral camming means in order to control the exposure time; t. stop means adapted for properly positioning and retaining said electrophotosensitive sheet material in said exposure zone; u. second camming means associated with said one-cycle drive train means and adapted to move said stop means so as to maintain said sheet material in said exposure zone during exposure and to release said sheet material thereafter; v. ejecting means associated with said one-cycle drive train means and adapted positively to advance the exposed sheet material from said exposure zone and into said third transfer means; w. reservoir containing a relatively concentrated dispersion of charged marking particles in a liquid medium for replenishing such particles in said developing means; x. manually adjustable pumping means connecting said reservoir with said developing zone; and y. third camming means associated with said one-cycle drive train means and adapted to actuate said pumping means in order to introduce into said developing zone a predetermined quantity of said relatively concentrated dispersion.

Claim 2

An apparatus for reproducing the image of an object on an electrophotosensitive sheet material, said apparatus comprising: a. first transfer means to advance said sheet material into and through a charger zone disposed generally adjacent and below one side of said first transfer means; b. charger means in said charger zone including spaced corona charging units to deposit an electrostatic charge of opposite polarity on each side of said sheet material; c. second transfer means to receive said sheet material after charging and advance same into an exposure zone disposed generally below said charger zone; d. exposure plane means in said exposure zone for positioning the charged sheet material during exposure; e. object plane means disposed generally in horizontally spaced relation to the opposite side of said first transfer means and in laterally and vertically spaced relation to said exposure plane means; f. means defining a light path between said object plane means and said exposure plane means for exposing the charged sheet material to a reflected light image of the object to be reproduced; g. third transfer means to receive said sheet material after exposure and advance same into and laterally through a developing zone disposed generally below said exposure zone; h. developing means in said developing zone, including charged marking particles suspended in liquid medium, to develop the electrostatic latent image on said sheet material after exposure; i. means disposed in horizontally spaced relation to said developing zone, for receiving the developed sheet material and advancing same in a generally lateral path of travel opposite in direction to its path of travel through said charger zone, and for removing the liquid portion of said developing means; j. continuous drive means; k. one-cycle drive train means for operating in synchronization elements to produce a single copy of the object to be reproduced; l. manually initiated first camming means adapted to engage and disengage said continuous drive means with said oNe-cycle drive train means; m. multiple-station member associated with said first camming means, said member being manually prepositioned and responsive to pawl means associated with said one-cycle drive train means to restore said member one station for each cycle completed until said first camming means is restored to the disengaging position; n. first switching means associated with said first camming means for energizing said corona charging units; o. feed means associated with said one-cycle drive train means to initiate feed of electrophotosensitive sheet material from a magazine to said first transfer means; p. exposure illuminating means; q. second switching means to energize said exposure illuminating means; r. first spiral camming means associated with said one-cycle drive train means and adapted to actuate said second switching means; s. second spiral camming means for manually and adjustably prepositioning said second switching means in relation to said first spiral camming means in order to control the exposure time; t. stop means adapted for properly positioning and retaining said electrophotosensitive sheet material in said exposure zone; u. second camming means associated with said one-cycle drive train means and adapted to move said stop means so as to maintain said sheet material in said exposure zone during exposure and to release said sheet material thereafter; v. ejecting means associated with said one-cycle drive train means and adapted positively to advance the exposed sheet material from said exposure zone and into said third transfer means; w. reservoir containing a relatively concentrated dispersion of charged marking particles in a liquid medium for replenishing such particles in said developing means; x. manually adjustable pumping means connecting said reservoir with said developing zone; and y. third camming means associated with said one-cycle drive train means and adapted to actuate said pumping means in order to introduce into said developing zone a predetermined quantity of said relatively concentrated dispersion.