Pitney Bowes Inc.

Eugene A Wirth

Frederick J Pelda

Robert J Bartoes

A buckle chute folder for folding a plurality of paper sheets. The folder includes: a buckle chute; a pair of folding rollers downstream of the buckle chute; a curved paper guide downstream and adjacent the folding rollers for changing the direction of the folded sheets as they exit the folding rollers; and a pair of exit rollers downstream of the paper guide. One of the exit rollers has a fluorinated ethylene propylene sleeve whereby neither of the exit rollers feeds a paper sheet forming a part of the plurality of paper sheets ahead of any other of the paper sheets forming the plurality of paper sheets.

Buckle chute folder exit rollers

A fire extinguishing device for use with a heat fusing apparatus in an electrophotocopying machine, including a roller movably mounted above a copy paper conveyor associated with and located downstream of the heat fusing apparatus, a moving device for moving the roller into rolling contact with the conveyor when an abnormality is detected in the fusing apparatus during the copying operation, and a device for maintaining the roller out of rolling contact with the conveyor when no abnormality in the fusing apparatus is detected during the copying operation.

Fire extinguishing device for electrophotocopier

A fire extinguishing device for use with a heat fusing apparatus in an electrophotocopying machine, comprising a roller movably mounted above a copy paper conveyor associated with and located downstream of the heat fusing apparatus, means for moving the roller into rolling contact with the conveyor when an abnormality is detected in the fusing apparatus during the copying operation, and means for maintaining the roller out of rolling contact with the conveyor when no abnormality in the fusing apparatus is detected during the copying operation.

In an electrostatic copier of the type which utilizes a liquid developer for developing an electrostatic latent image formed on a copy sheet as a result of which the copy sheet becomes wet, there is provided improved apparatus for drying the wet copy sheet. The drying apparatus includes a movable belt, made of a strip of imperforate heat conductive material, for transporting the wet copy sheet in a predetermined path of travel through the drying station of the copier. The drying apparatus also includes a cover for deflecting air which is normally utilized for drying purposes, away from a portion of the belt so as to form first and second drying regions in the path of travel of the wet copy sheet. The drying apparatus additionally includes means for heating the moving belt at the first drying region, for urging liquid developer carried by the wet copy sheet towards the surface of the same which is disposed out of contact with the moving belt. Whereupon, air directed to the second drying region is sufficient to evaporate the liquid developer from the heated copy sheet, thereby drying the same.

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Huntington, CT, United States of America

Eugene A Wirth