US3854814A - Translating dwell cleaning system - Google Patents

Translating dwell cleaning system Download PDF

Info

Publication number
US3854814A
US3854814A US00391195A US39119573A US3854814A US 3854814 A US3854814 A US 3854814A US 00391195 A US00391195 A US 00391195A US 39119573 A US39119573 A US 39119573A US 3854814 A US3854814 A US 3854814A
Authority
US
United States
Prior art keywords
blade
cam
translation
imaging surface
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00391195A
Other languages
English (en)
Inventor
R Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Priority to US00391195A priority Critical patent/US3854814A/en
Priority to CA198,410A priority patent/CA1019800A/en
Priority to DE19742425755 priority patent/DE2425755A1/de
Priority to NL7408310A priority patent/NL7408310A/xx
Priority to JP1974098275U priority patent/JPS5526921Y2/ja
Priority to GB3639274A priority patent/GB1464115A/en
Priority to FR7429038A priority patent/FR2245992B1/fr
Application granted granted Critical
Publication of US3854814A publication Critical patent/US3854814A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
    • G03G21/0029—Details relating to the blade support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

Definitions

  • u.s. c1 ass/1s, 15/256.53, 74/569, 100/174, 101/425 Int. Cl G03g 15/00 3 Field of Search 15/256.53, 256.51, 256.5;
  • ABSTRACT In an electrostatographic imaging surface blade clean- I ing system in which a cleaning blade is cyclically translated laterally of the normal direction of motion 'of the imaging surface between two substantially 'quiring a major decrease in their maximum available spacing.
  • the present invention relates to electrostatographic imaging surfaceblade cleaningsystems, and in particular to such a systemproviding changes in theenddwell positions of a translating cleaningblade.
  • FIG. 1 is a planview of an exemplary embodiment' of the present cleaning blade system
  • FIG. Zis an enlarged detail; of thedrive cam and cam follower from FIG. 1 and 1 FIG. 3 is an alternativeembodiment of the drive cam and cam follower of F-lGS. 1 and 2;.
  • FIGS! 1 through 3 Referring now to the drawings,- FIGS! 1 through 3,
  • FIGS. 1 and 2 there is shown therein an examplary blade cleaning system 10 in accordance with the present invention for cleaningtoner from thephotoreceptive imaging surface llof a xerographic drum 142
  • the surface 12 is cleaned by a contacting cleaning blade 16, extending transverse the direction of movement (rotation) of the imaging surface 12.
  • the 'presen't invention relates particularly to a blade drive system 20 for laterally oscillating the clean- -ing blade 16 back and forth across the-imaging surface 12, as illustrated by the arrow in-FIG. l.
  • the bladedrive system 20 provides improved cleaning blade life and reliability by, in addition to translating the cleaning blade, also shifting or translatingv the Exemplary xerographic photoreceptor blade type dry toner cleaningapparatus, to which the present invention relates,-is disclosed in'U.S. Pat. Nos. 3,438,706'is sued Apr. 15, 1969, to -H.'Tanaka et al.; 3,552,850 issued Jan. 5, 1971, to SF. Royka etaL; 3,634,077 issued Jan. 1 l, l972,to W. A. Sullivan;3,660,863 issued May 9, 1972 to D. P. Gerbasi; 3,724,019 issued Apr. 3,
  • the present invention islan improvement in this technology, and accordinglythese references are by reference in;thepresentspecispecific improvement inthe xerographi'c cleaning'blade structure disclosed in the aboveincorporated UQSQ -Pat. Nos. 3,724,019 and 3,724,020 and the Xerox 4000 copier, requiring only a'modifirotational speed; Asin these tworeference patents,.the I camZjZ is. driven about a-fixedaxis of rotation 24at a' relatively slow speed by a conventional small electric motor. 26 and conventional integral gear reduction two end dwell positions in which the cleaning blade 16 stops at the end ofeach lateral extreme of theblade os cillation.
  • the blade drivesystem. '20 utilizing'a multilobe cam drive, shifts or moves these end dwell positions by a small distance in each cycle to substantially increase the number of dwell positions and thereby assist in "extendingthe effective. cleaning blade life.
  • Each'lobe of the cam 22' provides a full oscillation of the cleaning blade 16 for substantially as great a distance as could be provided by a single lobe cam
  • each lobe here has different maximum and minimum radii of revolution about the axis 24 and therefore provides slight shifting or cyclic changes of both of the two translation end dwell'positions of the blade. This shifting occurs automatically in response to, and as a part of, the blade oscillation, without any stopping of the blade motion between the two dwell positions.
  • the cleaning blade 16 does not step transversely across the imaging surface 12 in small steps from oneside to another. Rather, it fully cyclically traverses to substantially the maximum practical and usable extent in each I cycle with eachicam'lobe.
  • a desirable additional feature 3 provided by the drive system 20 is the irregular spacing in angular and circumferential distance of the cam lobes around the axis 24. This provides a cyclic changing of the blade translation speed and total translation time for each cam lobe, which is desirable. The more irregular the motion, the less likelyis that the blade or harmonically with t'ions of adjacent blade oscillations are the same. They are spaced apart in time -by four intervening oscillaof said cleaning blade and for automatically multiply two end'dwell positions of the blade.
  • the stroke length can, of course, be changed as well, if desired, by appropriate design of the cam surface, but it is not necessary with the disclosed system vto sacrifice the utilization of a large percentage of the maximum stroke length between the most extreme allowable end dwell positionstturn for helping to break up excessive toner, lubricant,
  • FIG. 3 is similar in structure and operation to that of FIGS. 1 and 2 described above.
  • a blade translation velocity of between approximately-0.5 l0 centimeters per second and 0.2 centimeters per second is appropriate for cleaning with distributed blade wear.
  • an amplitude of oscillation (distance between dwell points) of greater than approximately 0.15 centimeters but not extending off of the imaging surface is suitable.
  • Y i i 1. An electrostatog raphic imaging surface blade cleaning system in which a cleaning blade is cyclically oscillated laterally of the normal direction of motion of the imaging surface: between two substantially spaced apart translation end dwell positions of said blade on said-imaging surface, wherein the improvement comprises a blade drive means for cyclic lateral oscillation slightly shifting the positions on said imaging surface of said two blade translation end dwell positions without stopping the blade motion between said two translation end dwell positions,
  • said multi-lobe cam has a plurality. of cam lobes having different maximum and minimum radii of revolution about said axis for said automatic shifting of said two blade translation end dwell positions at each said cyclic translation of e of said blade translation.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cleaning In Electrography (AREA)
US00391195A 1973-08-24 1973-08-24 Translating dwell cleaning system Expired - Lifetime US3854814A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US00391195A US3854814A (en) 1973-08-24 1973-08-24 Translating dwell cleaning system
CA198,410A CA1019800A (en) 1973-08-24 1974-04-29 Translating dwell cleaning system
DE19742425755 DE2425755A1 (de) 1973-08-24 1974-05-28 Reinigungsvorrichtung
NL7408310A NL7408310A (enrdf_load_stackoverflow) 1973-08-24 1974-06-20
JP1974098275U JPS5526921Y2 (enrdf_load_stackoverflow) 1973-08-24 1974-08-16
GB3639274A GB1464115A (en) 1973-08-24 1974-08-19 Apparatus for cleaning a movable electrostatographic imaging surface
FR7429038A FR2245992B1 (enrdf_load_stackoverflow) 1973-08-24 1974-08-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00391195A US3854814A (en) 1973-08-24 1973-08-24 Translating dwell cleaning system

Publications (1)

Publication Number Publication Date
US3854814A true US3854814A (en) 1974-12-17

Family

ID=23545646

Family Applications (1)

Application Number Title Priority Date Filing Date
US00391195A Expired - Lifetime US3854814A (en) 1973-08-24 1973-08-24 Translating dwell cleaning system

Country Status (7)

Country Link
US (1) US3854814A (enrdf_load_stackoverflow)
JP (1) JPS5526921Y2 (enrdf_load_stackoverflow)
CA (1) CA1019800A (enrdf_load_stackoverflow)
DE (1) DE2425755A1 (enrdf_load_stackoverflow)
FR (1) FR2245992B1 (enrdf_load_stackoverflow)
GB (1) GB1464115A (enrdf_load_stackoverflow)
NL (1) NL7408310A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301696A (en) * 1978-10-25 1981-11-24 Tetra Pak International Ab Method and an arrangement for the compensation of inertia forces in the indexing movement of a machine element
US4509225A (en) * 1983-01-20 1985-04-09 Minnesota Mining And Manufacturing Company Pressure roll cleaning system
US4550999A (en) * 1984-03-05 1985-11-05 Ricoh Company Ltd. Electrophotographic copying apparatus including transfer hold-down pump
US4577955A (en) * 1983-11-18 1986-03-25 Ricoh Company, Ltd. Electrophotographic copying apparatus including a guillotine cleaner blade arrangement and method of operation
US4875070A (en) * 1986-12-30 1989-10-17 The Yokohama Rubber Co., Ltd. Method of removing toner from a rotating drum in a xerographic copying machine using a vibrating blade
US4982239A (en) * 1987-08-07 1991-01-01 Canon Kabushiki Kaisha Image forming apparatus having reciprocating cleaning means
US5265537A (en) * 1988-11-17 1993-11-30 Baldwin Technology Corporation Printing press blanket cleaner
US6334042B1 (en) * 2000-11-28 2001-12-25 Xerox Corporation Side shifting cleaning apparatus and method
US20100150626A1 (en) * 2008-12-11 2010-06-17 Walter Kopp Cleaning arrangement for a moving element to be cleaned in an electrographic printing apparatus
US11294322B2 (en) * 2018-09-17 2022-04-05 Hewlett-Packard Development Company, L.P. Cleaning of print apparatus components with rotation and oscillation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2642707C2 (de) * 1976-09-23 1978-10-12 Lumoprint Zindler Kg, 2000 Hamburg Vorrichtung zum Abstreifen eines vorlaufenden Randes eines Empfangsblattes von einem Übertragungsbildträger
JPS5893085A (ja) * 1981-11-27 1983-06-02 Mita Ind Co Ltd 静電式複写機のクリ−ニング装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US631495A (en) * 1897-04-02 1899-08-22 Stephen Jarvis Adams Cam mechanism.
US1372408A (en) * 1920-04-19 1921-03-22 George M Arragg Traverse-motion
US1922959A (en) * 1932-03-04 1933-08-15 Proctor & Schwartz Inc Knife oscillating device
US3724020A (en) * 1971-05-13 1973-04-03 Xerox Corp Wiper blade cleaner for xerographic machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US631495A (en) * 1897-04-02 1899-08-22 Stephen Jarvis Adams Cam mechanism.
US1372408A (en) * 1920-04-19 1921-03-22 George M Arragg Traverse-motion
US1922959A (en) * 1932-03-04 1933-08-15 Proctor & Schwartz Inc Knife oscillating device
US3724020A (en) * 1971-05-13 1973-04-03 Xerox Corp Wiper blade cleaner for xerographic machines

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301696A (en) * 1978-10-25 1981-11-24 Tetra Pak International Ab Method and an arrangement for the compensation of inertia forces in the indexing movement of a machine element
US4509225A (en) * 1983-01-20 1985-04-09 Minnesota Mining And Manufacturing Company Pressure roll cleaning system
US4577955A (en) * 1983-11-18 1986-03-25 Ricoh Company, Ltd. Electrophotographic copying apparatus including a guillotine cleaner blade arrangement and method of operation
US4550999A (en) * 1984-03-05 1985-11-05 Ricoh Company Ltd. Electrophotographic copying apparatus including transfer hold-down pump
US4875070A (en) * 1986-12-30 1989-10-17 The Yokohama Rubber Co., Ltd. Method of removing toner from a rotating drum in a xerographic copying machine using a vibrating blade
US4982239A (en) * 1987-08-07 1991-01-01 Canon Kabushiki Kaisha Image forming apparatus having reciprocating cleaning means
US5265537A (en) * 1988-11-17 1993-11-30 Baldwin Technology Corporation Printing press blanket cleaner
US6334042B1 (en) * 2000-11-28 2001-12-25 Xerox Corporation Side shifting cleaning apparatus and method
US20100150626A1 (en) * 2008-12-11 2010-06-17 Walter Kopp Cleaning arrangement for a moving element to be cleaned in an electrographic printing apparatus
US8340561B2 (en) * 2008-12-11 2012-12-25 OCé PRINTING SYSTEMS GMBH Cleaning arrangement for a moving element to be cleaned in an electrographic printing apparatus
US11294322B2 (en) * 2018-09-17 2022-04-05 Hewlett-Packard Development Company, L.P. Cleaning of print apparatus components with rotation and oscillation

Also Published As

Publication number Publication date
DE2425755A1 (de) 1975-03-06
GB1464115A (en) 1977-02-09
FR2245992B1 (enrdf_load_stackoverflow) 1977-07-08
FR2245992A1 (enrdf_load_stackoverflow) 1975-04-25
JPS5085243U (enrdf_load_stackoverflow) 1975-07-21
NL7408310A (enrdf_load_stackoverflow) 1974-09-25
JPS5526921Y2 (enrdf_load_stackoverflow) 1980-06-27
CA1019800A (en) 1977-10-25

Similar Documents

Publication Publication Date Title
US3854814A (en) Translating dwell cleaning system
US4339196A (en) Eccentric cam for electrophotocopier developer unit
CA1083656A (en) Vibrating blade cleaner
CA1038442A (en) Continuous blade cleaner
US4864363A (en) Cleaning device for a corona discharger
US3742551A (en) Toner cleaning and storing apparatus
US5122839A (en) Dual action blade cleaner
US3644959A (en) Device for cleaning photosensitive member in electrophotography
EP0044919A1 (en) Xerographic machine employing photoconductive imaging belt
US3876302A (en) High speed low inertia scanning system for a copying machine
US4833502A (en) Image forming apparatus having an image bearing member reciprocally movable in the direction of the rotational axis thereof
EP2950161B1 (en) Cleaning device
US3635196A (en) Pneumatically controlled seal
US3724020A (en) Wiper blade cleaner for xerographic machines
US3753615A (en) Scanning apparatus
JPH01277274A (ja) 定着装置
US4023897A (en) Optics drive mechanism
US5852758A (en) Charge roller displacement mechanism
JPS55137560A (en) Blade cleaning device of electrophotographic copier or the like
US3918807A (en) Cleaning blade for photocopier
US3206991A (en) Variable speed power transmission
GB2162156A (en) Sheet feeding paddle wheel
JPH04175782A (ja) 現像装置
EP0322229A2 (en) Cleaner blades
US11067938B2 (en) Cleaning unit, cartridge, image forming apparatus