Desk-top electrostatic copying machine

Claim 2

A desk top electrostatic copying machine comprising a lower part conTaining a developing station and an upper part hinged thereto, the upper and lower parts being provided with means for driving a copy sheet through a path lying between the said two parts and passing through a charging station having means for charging the copy sheet, and then through an exposing station, whereby, when the upper part is hinged open, the said path is opened out, the charging and exposing stations lying above the developing station and a deflector being provided for causing the exposed copy sheet to double back through the developing station after leaving the exposing station, the upper part having a third part hinged thereto, the upper and third parts being provided with means for driving an original through a second path lying between these two parts and passing through an illuminating station, whereby, when the third part is hinged open, the said second path is opened out, the upper part further comprising an optical system for illuminating the original at the illuminating station and projecting an image thereof on to the copy sheet at the exposing station as the original and copy sheet are driven simultaneously through the illuminating and exposing stations.

Claim 3

A copying machine according to claim 1, wherein the said means for driving the original and copy sheet comprise pairs of rollers, the two rollers of each pair being mounted respectively on the upper and lower parts or respectively on the upper and third parts and including a driven roller provided with a pulley, the pulleys being coupled by a belt.

Claim 4

A copying machine according to claim 2, wherein the pulleys and belt are toothed.

Claim 5

A copying machine according to claim 2, wherein one driven roller is mounted on the upper part and coupled to a motor via gears which engage when the upper part is closed down on to the lower part.

Claim 6

A copying machine according to claim 1, wherein the optical path from the illuminating station to the exposing station is a folded, crossing path via a plurality of mirrors.

Claim 7

A copying machine according to claim 1, wherein the optical system comprises a vane adjustably positionable under manual control in the light path from the illuminating station to the exposing station for controlling the exposure of the copy sheet.

Claim 8

A desk-top electrostatic copying machine comprising: a lower section, a copy paper developing station in said lower section, means defining the bottom of a copy paper flow path from a copy paper inlet to said developing station mounted in said lower section, a copy paper charging station disposed along said copy paper flow path between said copy paper inlet and said developing station, a copy paper exposure station interposed along said copy paper flow path between said charging station and said developing station, an upper section pivotally attached to said lower section and movable between an open position and a closed position, means defining the top of said copy paper flow path carried by said upper section and movable therewith between said closed position wherein said means defining the top of said copy paper flow path and said means defining the bottom of said copy paper flow path cooperate to provide a flow path through which copy paper can move and said open position wherein said means defining the top of said copy paper flow path is spaced from said means defining the bottom of said copy paper flow path to allow access thereto, copy paper drive means for moving said copy paper along said copy paper flow path, a front section pivotally attached to said top section and movable with respect thereto between an operating position and an access position, an original paper illuminating station is said upper section, optical means in said upper section for projecting an image of the original paper at said illuminating section upon said exposure station, means defining the bottom of an original paper flow path from an original paper inlet to an original paper outlet mounted in said upper section, means defining the top of said original paper flow path carried by said front section and movable therewith between said operating position wherein said means defining the bottom of said original paper flow path and said means defining the top of said original paper flow path cooperate to provide a flow path through which the original paper can move and said access position wherein said means defining the top of said original paper flow path is spaced from said means defining the bottom of said original paper flow path to allow access thereto, and original paper drive means for moving said original paper along said original paper flow path.

Claim 9

A desk-top electrostatic copying machine comprising: a lower section, a copy paper developing station in said lower section, means defining the bottom of a copy paper flow path from a copy paper inlet to said developing station mounted in said lower section, a copy paper charging station disposed along said copy paper flow path between said copy paper inlet and said developing station, a copy paper exposure station interposed along said copy paper flow path between said charging station and said developing station, an upper section pivotally attached to said lower section and movable between an open position and a closed position, means defining the top of said copy paper flow path carried by said upper section and movable therewith between said closed position wherein said means defining the top of said copy paper flow path and said means defining the bottom of said copy paper flow path cooperate to provide a flow path through which copy paper can move and said open position wherein said means defining the top of said copy paper flow path is spaced from said means defining the bottom of said copy paper flow path to allow access thereto, copy paper drive means for moving said copy paper along said copy paper flow path, a front section pivotally attached to said top section and movable with respect thereto between an operating position and an access position, an original paper illuminating station is said upper section, optical means in said upper section for projecting an image of the original paper at said illuminating section upon said exposure station, means defining the bottom of an original paper flow path from an original paper inlet to an original paper outlet mounted in said upper section, means defining the top of said original paper flow path carried by said front section and movable therewith between said operating position wherein said means defining the bottom of said original paper flow path and said means defining the top of said original paper flow path cooperate to provide a flow path through which the original paper can move and said access position wherein said means defining the top of said original paper flow path is spaced from said means defining the bottom of said original paper flow path to allow access thereto, and original paper drive means for moving said original paper along said original paper flow path.