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US3878818A - Cleaning apparatus for dry fuser rolls - Google Patents

Cleaning apparatus for dry fuser rolls Download PDF

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Publication number
US3878818A
US3878818A US387409A US38740973A US3878818A US 3878818 A US3878818 A US 3878818A US 387409 A US387409 A US 387409A US 38740973 A US38740973 A US 38740973A US 3878818 A US3878818 A US 3878818A
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United States
Prior art keywords
dry
toner particles
roll surface
fusing
roll
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Expired - Lifetime
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US387409A
Inventor
Raghulinga R Thettu
Donald J Quant
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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 US387409A priority Critical patent/US3878818A/en
Priority to CA203,682A priority patent/CA1025933A/en
Priority to DE19742436203 priority patent/DE2436203A1/en
Priority to NL7410512A priority patent/NL7410512A/xx
Priority to GB3499774A priority patent/GB1464759A/en
Priority to FR7427783A priority patent/FR2240473B1/fr
Application granted granted Critical
Publication of US3878818A publication Critical patent/US3878818A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
    • G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid

Definitions

  • ABSTRACT Cleaning apparatus for a dry heated pressure fusing system in which a conformable roll having a sleeve made of a material selected from the group of fluoro carbon resins, silicone, or fluorosilicones contacts the dry fuser roll to receive both paper contamination and non-visual toner offset to maintain clean copy sheets fixed by the fusing system.
  • Some paper contamination and toner is electrostatically attracted to the cleaning r011 by electrostatic attraction as well as surface forces.
  • a cleaning pad is retractably positioned to scrub the dry fuser roll surface to loosen fine sizing particles in the paper and tiny toner particles so that they can be removed onto the sleeve.
  • the contamination and toner offset are removed from the sleeve by a wiping member which may be non-tacky or tacky.
  • a hot surface such as a heated roller.
  • the roller surface may be dry. i.e.. no application of a liquid release agent to the surface of that roller as described for example. in U.S. Pat. Nos. 3.498.596. 3.539.16l and 3.666.247.
  • the fuser roll surface may be wetted with a release agent such as silicone oil as described in U.S. Pat. Nos. 3.268.351 and 3.265.002.
  • the fuser roll In the dry fusing system there is a tendency for the fuser roll to collect paper contamination and non-visual or minute toner particles which in turn cause a visual toner offset to build up on the fuser roll surface and be deposited as background on the copy sheets. It is particularly important to remove minute paper sizing particles and tiny toner particles which are normally difficult to remove from a dry heated fuser roll.
  • the present invention is an improved cleaning apparatus for cleaning dry fuser rolls to remove undesirable paper contaminants and non-visual toner particles. in the 2-5 micron range as well as visual toner offset.
  • lt is therefore the principle object of the present invention to improve heated pressure fusing roll devices.
  • FIG. 1 illustrates schematically a xerographic reproducing apparatus incorporating a heated pressure fuser roll apparatus constructed in accordance with the present invention.
  • FIG. 2 is an enlarged portion of FIG. 1 illustrating details of the invention.
  • FIG. 3 is a view similar to FIG. 2 illustrating an alternative embodiment.
  • FIG. 1 a preferred embodiment of the subject invention in a suitable environment such as an automatic xerographic reproducing machine.
  • the automatic xerographic reproducing machine includes a xerographic plate or surface formed in the shape ofa drum.
  • the plate has a photoconductive layer or light receiving surface on a conductive backing. journaled in a frame to rotate in the direction indicated by the arrow. The rotation will cause the plate surface to sequentially pass a series of xerographic processing stations.
  • the several xerographie processing stations in the path of movement of the plate surface may be described functionally as follows:
  • An exposure station B at which light or a radiation pattern of copies to be reproduced is projected onto the plate surface to dissipate the charge in the exposed areas thereof to thereby form alatent electrostatic image of the copies to be reproduced;
  • the fusing assembly 101 comprises a fuser roll 103 and pressure roll 105 through which the copy sheet to be fused is advanced through the nip formed by contact ofthe fuser roll and pressure roll.
  • the copy sheet is stripped from the fuser roll 10 by stripper fingers 112.
  • the fuser roll comprises a rotating member having an elastic compressible coating 132 made of silicone rubber or any suitable heat resistant compressible material as described for example in the aforementioned patents.
  • the rotating member may be internally heated by a heat source 134 as described in U.S. Pat. No. 3.666.247 or externally heated as described in U.S. Pat. Nos. 3.498.586 and 3.538.16l
  • the pressure roll comprises a rotating member which is covered with an elastic layer 142 or a slightly higher durometer and the fuser roll coating 132 as described in the aforementioned patents.
  • Cleaning roll apparatus 201 positioned to clean fuser roll 103 of paper contamination and non-visual as well as visual toner offset particles.
  • Cleaning roll apparatus 201 includes a metal core member 203 which-is blanketed in a cylindrical roll 205 made ofa soft deformable material. Any suitable soft heat resistant material can be used. such as silicone rubber. Nomex. or Dacron trademarks of DuPont Corporation. Wilmington. Delaware.
  • a sleeve 207 covers cylinder 205.
  • Sleeve 207 is made of a suitable material which attracts by surface forces paper contamination and toner offset. Typical materials are fluoro carbon resins including fluoro ethylene propylene manufactured under the trademark of Teflon by DuPont Corporation. silicones and fluorosilicones. The silicones are moisture flooded as for example. General Electric RTVl l2 and Dow Company RTV733.
  • a retractable scrubber-member 250 is positioned to loosen tiny contamination particles from the dry heated fusersurface.
  • scrubber member 250 includes a pad-portion 252 which is secured to a leaf spring portion.254 which urges pad portion 252 into a constant pressure contact with the fuser roll surface.
  • Pad portion 252 is made of any suitable heat resistant material. Typical materials are Nomex. Dacron. metallic'libers and combinations thereof.
  • Typical materials are Nomex. Dacron. metallic'libers and combinations thereof.
  • pad portion 250 is replaced with an indexible stationary roll 260 which is made of a rigid substrate covered with a soft coarse deformable material such as Nomex or Dacron.
  • indexible stationary roll 260 which is made of a rigid substrate covered with a soft coarse deformable material such as Nomex or Dacron.
  • An improved cleaning apparatus for dry heated pressure roll fusing systems in which paper contaminants and toner particles on the dry fusing roll surface are removed. the improvement comprising:
  • a cleaning roll member including a soft elastomeric blankethaving an outer sleeve positioned in contact with a fusing roll surface to attract paper contaminants and toner particles.
  • wiping means positioned to contact said fusing roll surface to scrub-and loosen tiny paper contaminants and toner particles ranging in size from submic-ron to about 10 microns sticking on the dry fuser roll surface whereby said contaminants and toner particles can be removed onto said sleeve.
  • said wiping means includes a pad member made of a heat resistant material urged into pressure contact with said fusing roll' surface at a constant pressure. I I t I I .2. Apparatus according to claiml wherein said pad member is urged against the fusing roll surface by a spring member.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)
  • Cleaning In Electrography (AREA)

Abstract

Cleaning apparatus for a dry heated pressure fusing system in which a conformable roll having a sleeve made of a material selected from the group of fluoro carbon resins, silicone, or fluorosilicones contacts the dry fuser roll to receive both paper contamination and non-visual toner offset to maintain clean copy sheets fixed by the fusing system. Some paper contamination and toner is electrostatically attracted to the cleaning roll by electrostatic attraction as well as surface forces. A cleaning pad is retractably positioned to scrub the dry fuser roll surface to loosen fine sizing particles in the paper and tiny toner particles so that they can be removed onto the sleeve. The contamination and toner offset are removed from the sleeve by a wiping member which may be non-tacky or tacky.

Description

United States Patent [191 Thettu et al. I
1 1 CLEANING APPARATUS FOR DRY FUSER ROLLS [75] Inventors: Raghulinga R. Thettu, Webster;
Donald J. Quant, Rochester, both of NY.
[73] Assignee: Xerox Corporation, Stamford,
Conn.
22 Filed: Aug. 10, 1973 21 Appl. No.: 387,409
[52] US. Cl. 118/637; 118/104; 432/60 [51] Int. Cl G03g 13/00 [58] Field of Search 118/60, 101, 104, 202,
118/203, 70, 261, 637; 271/DIG. 2; 432/60, 228
[56] References Cited UNITED STATES PATENTS 1,933,837 1l/1933 Arnold 118/104 2,239,383 4/1941 Drewsen 118/70 2,937,390 5/1960 Bolton ct a1. 118/104 X 3,037,451 6/1962 Davis 118/261 3,175,923 3/1965 Lerner... 118/70 3,626,833 12/1971 Koch 95/89 R 3,634,077 1/1972 Sullivan 96/1.4 3,649,992 3/1972 Thettu 118/60 X 3,716,018 2/1973 Ohta et a1. 118/101 [451 Apr. 22, 1975 Primary- Evaminer-Mervin Stein Assistant Examiner-Leo Millstein [57] ABSTRACT Cleaning apparatus for a dry heated pressure fusing system in which a conformable roll having a sleeve made of a material selected from the group of fluoro carbon resins, silicone, or fluorosilicones contacts the dry fuser roll to receive both paper contamination and non-visual toner offset to maintain clean copy sheets fixed by the fusing system. Some paper contamination and toner is electrostatically attracted to the cleaning r011 by electrostatic attraction as well as surface forces. A cleaning pad is retractably positioned to scrub the dry fuser roll surface to loosen fine sizing particles in the paper and tiny toner particles so that they can be removed onto the sleeve. The contamination and toner offset are removed from the sleeve by a wiping member which may be non-tacky or tacky.
3 Claims, 3 Drawing Figures PATENTEUAPRZZIQIS sum 2 OF? FIG. 2
FIG. 3
1 CLEANING APPARATUS FOR DRY FUSER ROLLS This invention relates to an improved cleaning apparatus for use with a dry heated pressure fusing system in an electrostatic reproduction system to produce high quality copies free of toner background.-
It has been recognized that one of the preferred ways for fusing a powder image to a substrate is to bring the powder into direct contact with a hot surface. such as a heated roller. The roller surface may be dry. i.e.. no application of a liquid release agent to the surface of that roller as described for example. in U.S. Pat. Nos. 3.498.596. 3.539.16l and 3.666.247. Alternatively. the fuser roll surface may be wetted with a release agent such as silicone oil as described in U.S. Pat. Nos. 3.268.351 and 3.265.002. v
In the dry fusing system there is a tendency for the fuser roll to collect paper contamination and non-visual or minute toner particles which in turn cause a visual toner offset to build up on the fuser roll surface and be deposited as background on the copy sheets. It is particularly important to remove minute paper sizing particles and tiny toner particles which are normally difficult to remove from a dry heated fuser roll.
The present invention is an improved cleaning apparatus for cleaning dry fuser rolls to remove undesirable paper contaminants and non-visual toner particles. in the 2-5 micron range as well as visual toner offset.
lt is therefore the principle object of the present invention to improve heated pressure fusing roll devices.
It is a further object of the present invention to enable removal of fine paper contaminants and tiny toner particles from a dry heated fuser roll.
It is a further object of the present invention to prevent toner offset from the surface of the fuser roll onto copy sheets.
It is a further object of the present invention to improve copy quality of copy sheets fused by dry pressure heated fuser systems.
These as well as other objects of the invention and further features thereof will be better understood upon reference to the following detailed description of the invention to be read in connection with the drawings wherein:
FIG. 1 illustrates schematically a xerographic reproducing apparatus incorporating a heated pressure fuser roll apparatus constructed in accordance with the present invention.
FIG. 2 is an enlarged portion of FIG. 1 illustrating details of the invention. and
FIG. 3 is a view similar to FIG. 2 illustrating an alternative embodiment.
Referring now to the drawings. there is shown in FIG. 1 a preferred embodiment of the subject invention in a suitable environment such as an automatic xerographic reproducing machine. The automatic xerographic reproducing machine includes a xerographic plate or surface formed in the shape ofa drum. The plate has a photoconductive layer or light receiving surface on a conductive backing. journaled in a frame to rotate in the direction indicated by the arrow. The rotation will cause the plate surface to sequentially pass a series of xerographic processing stations. For the purpose of the present disclosure the several xerographie processing stations in the path of movement of the plate surface may be described functionally as follows:
A charging station A. at which a uniform electrostatic charge is deposited on the photoconductive plate:
An exposure station B. at which light or a radiation pattern of copies to be reproduced is projected onto the plate surface to dissipate the charge in the exposed areas thereof to thereby form alatent electrostatic image of the copies to be reproduced;
A developing station C. at which xerographic developing material. including toner particles having an electrostatic charge opposite that of the latent electrostatic image. is cascaded over the latent electrostatic image to form a toner powder image in configuration of the copy being reproduced;
A transfer station D. at which the toner powder image is clectrostatically transferred from the plate surface to a transfer material or a support surface; and
A drum cleaning and discharge station E. at which the plate surface is brushed to remove residual toner particles remaining thereon after image transfer and at which the plate is exposed to a relatively bright light source to effect substantially complete discharge of any residual electrostatic charge remaining thereon.
The preceding description of the xerographic process is sufficient for an understanding of the instant invention. Further details may be had by reference to U.S. Pat. No. 3.578.859 filed July 3. 1969 and commonly assigned herewith.
At the fusing station F the fusing assembly 101 comprises a fuser roll 103 and pressure roll 105 through which the copy sheet to be fused is advanced through the nip formed by contact ofthe fuser roll and pressure roll. The copy sheet is stripped from the fuser roll 10 by stripper fingers 112. The fuser roll comprises a rotating member having an elastic compressible coating 132 made of silicone rubber or any suitable heat resistant compressible material as described for example in the aforementioned patents. The rotating member may be internally heated by a heat source 134 as described in U.S. Pat. No. 3.666.247 or externally heated as described in U.S. Pat. Nos. 3.498.586 and 3.538.16l The pressure roll comprises a rotating member which is covered with an elastic layer 142 or a slightly higher durometer and the fuser roll coating 132 as described in the aforementioned patents.
Referring specifically to HQ. 2 a cleaning roll apparatus 201 positioned to clean fuser roll 103 of paper contamination and non-visual as well as visual toner offset particles. Cleaning roll apparatus 201 includes a metal core member 203 which-is blanketed in a cylindrical roll 205 made ofa soft deformable material. Any suitable soft heat resistant material can be used. such as silicone rubber. Nomex. or Dacron trademarks of DuPont Corporation. Wilmington. Delaware. A sleeve 207 covers cylinder 205. Sleeve 207 is made of a suitable material which attracts by surface forces paper contamination and toner offset. Typical materials are fluoro carbon resins including fluoro ethylene propylene manufactured under the trademark of Teflon by DuPont Corporation. silicones and fluorosilicones. The silicones are moisture flooded as for example. General Electric RTVl l2 and Dow Company RTV733.
It has been found that paper contamination on the fuser roll 103 is clectrostatically attracted to sleeve 207 due to an opposite charge generated on the surface. lnitially. the fuser roll I03 drives pressure roll 105 generating static charges. When contamination builds up on the copysheet causes a decrease in the positivecharge thereby increasing the negative charge. Any loose 'paper fibers and/orbackground toner particles which are normally negative are attracted by the fuser roll surface which is positively induced. As a result the contaminationiand.toner particles collect on the fuser roll surfaceandare transferred tothe sleeve 207 by virtue -of the negatively induced charge thereon. The contami nation and toner particles are removed from the sleeve by -a wiper pad 210 which is made of Wool. Nomex or Dacron andcan be dry or slightly wet with silicone oil. Unfortunately. the tiny sizing particles in the paper and .minute toner particles range from about submicron to .l(-)= microns-stick to the dry heated fuser roll surface.
In accordance with the present invention a retractable scrubber-member 250 is positioned to loosen tiny contamination particles from the dry heated fusersurface. As best shown in H6. 2 scrubber member 250 includes a pad-portion 252 which is secured to a leaf spring portion.254 which urges pad portion 252 into a constant pressure contact with the fuser roll surface.
,Pad portion 252 is made of any suitable heat resistant material. Typical materials are Nomex. Dacron. metallic'libers and combinations thereof. By this structure a "positivescrubbingaction is imported to the fuser roll surfaee'freeing up the very minute paper sizing particles and toner particles enabling them to be removed onto the-sleeve 207. The scrubbermember'is retractable from the fuscr roll during standby mode to prevent vsmudges generally caused by the contamination col- .lected on the pad portion surface. A suitable vibrating meansv (not shown) is connected to the sc rubber member toprevent radial scratching on the fuser roll surface and separation ofcontamination.
- An alternative embodiment shown in FIG. 3 in which pad portion 250 is replaced with an indexible stationary roll 260 which is made of a rigid substrate covered with a soft coarse deformable material such as Nomex or Dacron. I 7
While there have been shown and described and pointed out the fundamental novel features of the invention as applied to a preferred embodiment. it'will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.
I What is claimed is:
1. An improved cleaning apparatus for dry heated pressure roll fusing systems in which paper contaminants and toner particles on the dry fusing roll surface are removed. the improvement comprising:
a cleaning roll member including a soft elastomeric blankethaving an outer sleeve positioned in contact with a fusing roll surface to attract paper contaminants and toner particles. and
wiping means positioned to contact said fusing roll surface to scrub-and loosen tiny paper contaminants and toner particles ranging in size from submic-ron to about 10 microns sticking on the dry fuser roll surface whereby said contaminants and toner particles can be removed onto said sleeve. said wiping means includes a pad member made of a heat resistant material urged into pressure contact with said fusing roll' surface at a constant pressure. I I t I I .2. Apparatus according to claiml wherein said pad member is urged against the fusing roll surface by a spring member. I
3. Apparatus according to claim l wherein said pad member is retractable during standby mode of operation. 1

Claims (3)

1. An improved cleaning apparatus for dry heated pressure roll fusing systems in which paper contaminants and toner particles on the dry fusing roll surface are removed, the improvement comprising: a cleaning roll member including a soft elastomeric blanket having an outer sleeve positioned in contact with a fusing roll surface to attract paper contaminants and toner particles, and wiping means positioned to contact said fusing roll surface to scrub and loosen tiny paper contaminants and toner particles ranging in size from submicron to about 10 microns sticking on the dry fuser roll surface whereby said contaminants and toner particles can be removed onto said sleeve, said wiping means includes a pad member made of a heat resistant material urged into pressure contact with said fusing roll surface at a constant pressure.
1. An improved cleaning apparatus for dry heated pressure roll fusing systems in which paper contaminants and toner particles on the dry fusing roll surface are removed, the improvement comprising: a cleaning roll member including a soft elastomeric blanket having an outer sleeve positioned in contact with a fusing roll surface to attract paper contaminants and toner particles, and wiping means positioned to contact said fusing roll surface to scrub and loosen tiny paper contaminants and toner particles ranging in size from submicron to about 10 microns sticking on the dry fuser roll surface whereby said contaminants and toner particles can be removed onto said sleeve, said wiping means includes a pad member made of a heat resistant material urged into pressure contact with said fusing roll surface at a constant pressure.
2. Apparatus according to claim 1 wherein said pad member is urged against the fusing roll surface by a spring member.
US387409A 1973-08-10 1973-08-10 Cleaning apparatus for dry fuser rolls Expired - Lifetime US3878818A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US387409A US3878818A (en) 1973-08-10 1973-08-10 Cleaning apparatus for dry fuser rolls
CA203,682A CA1025933A (en) 1973-08-10 1974-06-28 Cleaning apparatus for dry fuser rolls
DE19742436203 DE2436203A1 (en) 1973-08-10 1974-07-26 CLEANING DEVICE
NL7410512A NL7410512A (en) 1973-08-10 1974-08-05
GB3499774A GB1464759A (en) 1973-08-10 1974-08-08 Cleaning apparatus
FR7427783A FR2240473B1 (en) 1973-08-10 1974-08-09

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970038A (en) * 1975-01-02 1976-07-20 Xerox Corporation Roll fuser
US3980424A (en) * 1975-04-28 1976-09-14 Xerox Corporation Fuser cleaning roller
US3999510A (en) * 1975-01-02 1976-12-28 Xerox Corporation High surface energy cleaning roll
US4000963A (en) * 1975-07-21 1977-01-04 Xerox Corporation Cleaning apparatus for a heat and pressure fuser
US4046468A (en) * 1974-09-30 1977-09-06 Eastman Kodak Company Method and apparatus for cleaning fusing members of electrographic copiers
US4056706A (en) * 1975-04-21 1977-11-01 Xerox Corporation Apparatus and method for extending fuser release life
US4063530A (en) * 1975-03-06 1977-12-20 Xerox Corporation Image fixing
US4214549A (en) * 1978-06-28 1980-07-29 Xerox Corporation Roll fuser apparatus and release agent metering system therefor
US4509225A (en) * 1983-01-20 1985-04-09 Minnesota Mining And Manufacturing Company Pressure roll cleaning system
US4515466A (en) * 1982-05-27 1985-05-07 Xerox Corporation Sheet delivery station for copying apparatus
US4588279A (en) * 1982-10-27 1986-05-13 Konishiroku Photo Industry Co., Ltd. Cleaning roller intermediate transfer member
EP1004944A1 (en) * 1998-10-28 2000-05-31 Xeikon Nv Hot pressure fixing device
US10280551B2 (en) 2016-11-21 2019-05-07 Michael Sweigart Device and method for removing fur and hair from fabrics
US10531784B2 (en) 2016-11-21 2020-01-14 Michael Sweigart Device and method for removing fur and hair from fabrics

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Publication number Priority date Publication date Assignee Title
US1933837A (en) * 1932-03-22 1933-11-07 W E Greene Corp Doctor blade for rolls, cylinders, and the like
US2239383A (en) * 1939-03-20 1941-04-22 Hinde & Dauch Paper Co Clearing of rolls
US2937390A (en) * 1957-12-27 1960-05-24 Ibm Loose toner pick-up device
US3037451A (en) * 1959-07-15 1962-06-05 William F Davis Means for dispensing and apportioning fluids
US3175923A (en) * 1961-03-07 1965-03-30 Willcox & Gibbs Sewing Machine Excess adhesive removal from a moving belt
US3626833A (en) * 1969-06-09 1971-12-14 Addressograph Multigraph Liquid developing apparatus
US3634077A (en) * 1968-08-26 1972-01-11 Xerox Corp Method and apparatus for removing a residual image in an electrostatic copying system
US3649992A (en) * 1969-12-30 1972-03-21 Xerox Corp Cleaning apparatus for fusing system
US3716018A (en) * 1969-10-09 1973-02-13 Ricoh Kk Device for heating and fixing toner images upon a recording medium
US3769896A (en) * 1971-08-16 1973-11-06 Speed O Print Business Machine Squeegee assembly for photo-copy machines
US3796183A (en) * 1972-05-17 1974-03-12 Xerox Corp Free floating pressure biasing apparatus for cleaning roll fuser
US3811821A (en) * 1971-12-03 1974-05-21 Ricoh Kk Powder image fixing device for xerographic copying apparatus and method

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1933837A (en) * 1932-03-22 1933-11-07 W E Greene Corp Doctor blade for rolls, cylinders, and the like
US2239383A (en) * 1939-03-20 1941-04-22 Hinde & Dauch Paper Co Clearing of rolls
US2937390A (en) * 1957-12-27 1960-05-24 Ibm Loose toner pick-up device
US3037451A (en) * 1959-07-15 1962-06-05 William F Davis Means for dispensing and apportioning fluids
US3175923A (en) * 1961-03-07 1965-03-30 Willcox & Gibbs Sewing Machine Excess adhesive removal from a moving belt
US3634077A (en) * 1968-08-26 1972-01-11 Xerox Corp Method and apparatus for removing a residual image in an electrostatic copying system
US3626833A (en) * 1969-06-09 1971-12-14 Addressograph Multigraph Liquid developing apparatus
US3716018A (en) * 1969-10-09 1973-02-13 Ricoh Kk Device for heating and fixing toner images upon a recording medium
US3649992A (en) * 1969-12-30 1972-03-21 Xerox Corp Cleaning apparatus for fusing system
US3769896A (en) * 1971-08-16 1973-11-06 Speed O Print Business Machine Squeegee assembly for photo-copy machines
US3811821A (en) * 1971-12-03 1974-05-21 Ricoh Kk Powder image fixing device for xerographic copying apparatus and method
US3796183A (en) * 1972-05-17 1974-03-12 Xerox Corp Free floating pressure biasing apparatus for cleaning roll fuser

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046468A (en) * 1974-09-30 1977-09-06 Eastman Kodak Company Method and apparatus for cleaning fusing members of electrographic copiers
US3999510A (en) * 1975-01-02 1976-12-28 Xerox Corporation High surface energy cleaning roll
US3970038A (en) * 1975-01-02 1976-07-20 Xerox Corporation Roll fuser
US4063530A (en) * 1975-03-06 1977-12-20 Xerox Corporation Image fixing
US4056706A (en) * 1975-04-21 1977-11-01 Xerox Corporation Apparatus and method for extending fuser release life
US3980424A (en) * 1975-04-28 1976-09-14 Xerox Corporation Fuser cleaning roller
US4000963A (en) * 1975-07-21 1977-01-04 Xerox Corporation Cleaning apparatus for a heat and pressure fuser
US4214549A (en) * 1978-06-28 1980-07-29 Xerox Corporation Roll fuser apparatus and release agent metering system therefor
US4515466A (en) * 1982-05-27 1985-05-07 Xerox Corporation Sheet delivery station for copying apparatus
US4588279A (en) * 1982-10-27 1986-05-13 Konishiroku Photo Industry Co., Ltd. Cleaning roller intermediate transfer member
US4509225A (en) * 1983-01-20 1985-04-09 Minnesota Mining And Manufacturing Company Pressure roll cleaning system
EP1004944A1 (en) * 1998-10-28 2000-05-31 Xeikon Nv Hot pressure fixing device
US10280551B2 (en) 2016-11-21 2019-05-07 Michael Sweigart Device and method for removing fur and hair from fabrics
US10531784B2 (en) 2016-11-21 2020-01-14 Michael Sweigart Device and method for removing fur and hair from fabrics

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