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CONTROLLING HUMIDITY WITHIN A XEROGRAPHIC DEVELOPER HOUSING

IP.com Disclosure Number: IPCOM000023629D
Original Publication Date: 1978-Aug-31
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 171K

Publishing Venue

Xerox Disclosure Journal

Abstract

A developer housing in a xerographic machine is closed to ambient relative humidity except for the very small openings at the input and output seals at the drum face, These seal-face openings permit a minimum exchange of moisture between the housing interior and the outside ambient, A desiccant cartridge is located within the housing to control the internal relative humidity. In order to prevent the cartridge from being contaminated with developer, a disposable plastic sleeve covers the cartridge. The sleeve can take the form of a water-permeable plastic membrane; alternatively a normally non-pervious plastic sleeve can be suitably perforated.

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XEROX DISCLOSURE JOURNAL

CONTROLLING HUMIDITY WITHIN A Proposed Classification
XEROGRAPHIC DEVELOPER HOUSING U.S. Cl, 118/64
F.W. Hudson Int. Cl, B05c 11/00

A developer housing in a xerographic machine is closed to
ambient relative humidity except for the very small openings
at the input and output seals at the drum face, These seal~
face openings permit a minimum exchange of moisture between
the housing interior and the outside ambient, A desiccant
cartridge is located within the housing to control the
internal relative humidity. In order to prevent the cartridge
from being contaminated with developer, a disposable plastic
sleeve covers the cartridge. The sleeve can take the form of a
water~permeable plastic membrane; alternatively a normally
non~pervious plastic sleeve can be suitably perforated.

Since the cartridges are uncontaminated by developer, they can
be periodically removed, dryed out for reuse and fitted with
new sleeve covers,

Volume 3 Number 4 July/August 1978 221

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[This page contains 1 picture or other non-text object]