Browse Prior Art Database

Copier Fuser Controls

IP.com Disclosure Number: IPCOM000089446D
Original Publication Date: 1977-Nov-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Edwards, EG: AUTHOR [+4]

Abstract

A fuser station for fusing dry toner or ink to copy paper includes a heated fuser roll and a backing roll Imaged paper travels from an imaged transfer portion through a paper path, then to the nip between the fuser and backing rolls for fusing the image to the copy paper. In the event that a paper misfeed causes the operator to access the fuser station, safety conditions require that the power for heating the fuser roll, 110 volts AC (or other power line voltage), be removed from terminals T.

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Copier Fuser Controls

A fuser station for fusing dry toner or ink to copy paper includes a heated fuser roll and a backing roll Imaged paper travels from an imaged transfer portion through a paper path, then to the nip between the fuser and backing rolls for fusing the image to the copy paper. In the event that a paper misfeed causes the operator to access the fuser station, safety conditions require that the power for heating the fuser roll, 110 volts AC (or other power line voltage), be removed from terminals T.

To access the inside of the fuser station for either paper misfeed or replacement of fuser roll, the operator removes the removable cover from the bottom wall, which encloses the fuser station for rapid access to the fuser station. The left side of the fuser station has latches (not shown) which secure the removable cover to the bottom wall. The removable cover can be completely removed from the bottom wall for ease of access. Further, for additional ease of access the entire fuser station can be placed upon a carriage slide for sliding out of the machine cabinet. In either event, the power to terminals T must be removed.

For sensing access to the fuser station, switch S1 senses when the removable cover is no longer sealing the fuser station. It supplies a signal to AND gate A that the power should be removed. Further, when an operator moves the carriage holding the fuser station out of the machine, switch S2 responds, disabling AND circuit A from enabling pow...