Browse Prior Art Database

A RELEASE MATERIAL APPLICATOR SEAL

IP.com Disclosure Number: IPCOM000023514D
Original Publication Date: 1977-Dec-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 256K

Publishing Venue

Xerox Disclosure Journal

Abstract

A fuser assembly employed in an electrophotographic printing machine comprising a heated fuser roller and a back-up roller. The sheet of support material with the toner powder image thereon passes between these rollers. Inasmuch as the toner particles tend to adhere to the heated fuser roller, it is frequently necessary to apply a release material thereto. The fuser roller rotates in an open-ended chamber housing the re-

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XEROX DISCLOSURE JOURNAL

A RELEASE MATERIAL APPLICATOR
SEAL
Louis R. Hattler
Suku K. Menon

Proposed Classification
U.S. Cl. 118/60
mt. Cl. B05c 11/00

A fuser assembly employed in an electrophotographic printing
machine comprising a heated fuser roller and a back-up roller.
The sheet of support material with the toner powder image
thereon passes between these rollers. Inasmuch as the toner
particles tend to adhere to the heated fuser roller, it is
frequently necessary to apply a release material thereto. The
fuser roller rotates in an open-ended chamber housing the re-

lease material. This presents a sealing problem, Resilient
pads 82 secured to housing 70 act as a seal to prevent sidewise
leakage of the release material along the longitudinal axis~of
the fuser roller between the edge of metering blade 74 and the
fuser roller. Pads 82 engage side marginal portions 84 and 86
of metering blade 74. Side marginal portions 84 and 86 are
integral with metering blade 74 at opposed sides thereof.
Side marginal portions 84 and 86 extend in an outwardly direc-
tion from the edge of metering blade 74 substantially normal
thereto. Preferably, side marginal portions 84 and 86 are
configured in the shape of triangular pads. Resilient pads 82
press truncated pads 84 and 86 into engagement with the fuser
roller. As truncated pads 84 and 86 are pressed into engage-
ment with the fuser roller, they deform to form troughs.
These troughs act as catches to prevent leakage of the release
material moving in a si...