Heidelberger Druckmaschinen Ag

Robert S Rejewski

Edward Michael Eck

Richard George Allen

Kenneth P Friedrich

An installed or temporarily inserted air flow instrument measures air flow in a pneumatic subsystem of a cleaning station in a copier or printer. The air flow instrument has a pitot tube and a static pressure tube The pitot tube is substantially parallel to the length of in-line adapter is centered within in-line adapter and terminates in impact end Static pressure tube is substantially transverse to the length of in-line adapter Static pressure tube penetrates adapter wall of in-line adapter and is flush with adapter inner surface of in-line adapter The pressure difference at the ends of the pitot and static pressure tube represents a measurement of the air flow in the body of the air flow instrument.

Air velocity measurement instrument

An image-forming machine has a development station with a dusting control system that generates a flow barrier adjacent to a development region.

Image-forming machine having a development station with a dusting control system

An apparatus for measuring the deflection of a belt in an electrophotographic printing machine includes an elongate arm member having a first end and a second end. The second end engages and is displaced by the belt. A gearbox includes a plurality of gears interconnected into a gear arrangement, and a gearbox shaft rotatable by the gear arrangement. The second end of the arm member is coupled to the gear arrangement, which converts displacement of the second end of the arm member to rotation of the gearbox shaft. An encoder is associated with the gearbox shaft. The encoder includes at least one encoder output. The encoder senses rotation of the gearbox shaft and issues electrical pulses on the encoder output. The electrical pulses are indicative of the magnitude and direction of the rotation of the gearbox shaft. A counter includes at least one counter input and at least one counter output. The counter input is electrically connected to the encoder output. The counter counts the electrical pulses and activates the counter output based at least in part upon the electrical pulses.

Method and apparatus for setting transfer roller engagement

A method for reducing contamination of a corona charger in an electrophotographic process wherein the corona charger imparts a charge to a photoconductor film passed by the corona charger, by identifying contaminated air flow streams and determining the direction of flow of the contaminated air flow stream flowing past or into the corona charger and positioning at least one plate to divert the contaminated air flow streams away from the corona charger.

Growing community of inventors

Brockport, NY, United States of America

Robert S Rejewski