Belt printer with conductive elements on non-conductive belt

Claim 2

A belt printing arrangement comprising: a. a movable belt of resilient non-conductive base material with first and second sides and having a multiplicity of conductive non-con-tiguous chargeable elements arranged to be repeated on both said sides to form minute capacitors distributed in a regular array; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 3

A belt printing arrangement comprising: a. a movable belt of resilient non-conductive base materIal having a multiplicity of conductive non-contiguous chargeable elements, said chargeable elements being formed of minute deposits of resilient material impregnated with metallic powder filling perforations in said belt which are arranged in a regular array; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 4

A belt printing arrangement comprising: a. a movable belt of resilient non-conductive base materIal having a multiplicity of conductive non-contiguous chargeable elements, said chargeable elements being formed of minute deposits of resilient material impregnated with metallic powder filling perforations in said belt which are arranged in a regular array; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 5

A belt printing arrangement comprising: a. a movable belt of resilient non-conductive base material having a multiplicity of conductive non-contiguous chargeable elements, said chargeable elements being formed of deposits of magnetizable ferrite powder filling perforations in said belt which are arranged in a regular array; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 6

A belt printing arrangement comprising: a. a movable belt of resilient non-conductive base material having a multiplicity of conductive non-contiguous chargeable elements, said chargeable elements being formed of deposits of magnetizable ferrite powder filling perforations in said belt which are arranged in a regular array; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 7

The arrangement according to claim 3 wherein said means for selectively charging said elements include a recording head comprised of a row of electromagnets selectively energizable in synchronism with the movement of said belt.

Claim 8

A belt printing arrangement comprising: a. a movable belt constructed as a woven fabric of resilient material, and having a multiplicity of conductive non-contiguous chargeable elements provided therein, said chargeable elements consisting of deposits of elastic conductive material filling the cavities of said woven fabric, and being insulated mutually by the fibers of the woven fabric; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 9

A belt printing arrangement comprising: a. a movable belt constructed as a woven fabric of resilient material, and having a multiplicity of conductive non-contiguous chargeable elements provided therein, said chargeable elements consisting of deposits of elastic conductive material filling the cavities of said woven fabric, and being insulated mutually by the fibers of the woven fabric; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of said information; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 10

In a belt printing arrangement, the combination comprising: a. a movable belt of resilient non-conductive base material with firs and second sides and having a multiplicity of conductive non-contiguous chargeable elements arranged on both sides of said belt in a regular array and chargeable from either side of said belt; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of the received information, said means for selectively charging including a recording head consisting of a plurality of parallel pointed conductive sheets separated by insulating inserts of substantially corresponding shape, each sheet being coupled to an energization circuit, the pointed ends of said sheets collectively forming a row of element-charging points arranged to be substantially perpendicular to the direction of movement of said belt; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 11

In a belt printing arrangement, the combination comprising: a. a movable belt of resilient non-conductive base material with firs and second sides and having a multiplicity of conductive non-contiguous chargeable elements arranged on both sides of said belt in a regular array and chargeable from either side of said belt; b. means positioned for selectively charging said elements in accordance with received information signals, forming thereby invisible charge patterns representative of the received information, said means for selectively charging including a recording head consisting of a plurality of parallel pointed conductive sheets separated by insulating inserts of substantially corresponding shape, each sheet being coupled to an energization circuit, the pointed ends of said sheets collectively forming a row of element-charging points arranged to be substantially perpendicular to the direction of movement of said belt; c. powder applicator means for forming on said belt visible images of said charge patterns; and d. means for transferring said visible images to a movable permanent recording medium.

Claim 12

The arrangement according to claim 6 wherein said means for transferring said visible images include a conductive plate positioned to remove electrostatically the powder images on said belt and transfer same to said permanent recording medium upon the receipt of periodic high voltage pulses.

Claim 13

The arrangement according to claim 7 further including a heater, positioned from said plate in the direction of movement of said medium, for attaching thereto the transferred powder images representative of received informatiOn signals.

Claim 14

The arrangement according to claim 7 wherein said conductive plate is, with respect to said belt, positioned adjacent to the opposite surface of said permanent recording medium and is parallel to said medium and to said belt, and wherein said periodic pulses received by said plate have a rate of generation in which said pulses are spaced apart in time to define, between a consecutive pair thereof, a time interval during which said belt receives a full line of text which, in the course of receipt thereof, is moved into the transfer position, with the movement of said recording medium corresponding to said time intervals so as to effect interline spacing.