Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
  • G03G5/02—Charge-receiving layers
  • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
• • 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
  • G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
  • G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
  • G03G15/1605—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support
  • G03G15/162—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using at least one intermediate support details of the the intermediate support, e.g. chemical composition
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
  • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
  • B41P2227/70—Forming the printing surface directly on the form cylinder

Definitions

• the present invention relates to image forming
• the present invention seeks to provide, in one aspect
• the present invention further seeks to provide, in a
• the present invention further seeks to provide, in a
• imaging apparatus comprising:
• the blanket comprising:
• the layered transfer portion comprises an
• the mounting fixture comprises an electrically
• electrically conductive element which preferably comprises
• said at least one " L" shaped extension 1 has a first portion extending in a direction perpendicular
• the mounting recesses further comprise 7 recesses therein which receive said second portion.
• the layered transfer portion comprises an
• the mounting fixture comprises an electrically
• extension 24 extending therefrom, which extension preferably has a first
• 31 transfer portion comprises a conformal layer formed of a
• 33 preferably less than about 50 and more than about 30.
• the transfer surface is a release layer for
• 32 layer comprises an acrylic polymer.
• 34 transfer portion comprises an adhesive layer on a side
• barrier layer preferably comprising at least
• barrier layer preferably comprising at least
• barrier layer preferably comprising at least
• barrier layer preferably comprising at least
• 29 material is a gas and the barrier layer is a barrier layer
• barrier layer preferably comprising at least 1 partially hydrolyzed polyvinyl alcohol, that is
• a barrier layer preferably comprising at least
• barrier layer preferably comprising at least
• Fig . 1 is a simplified sectional illustration of
• FIG. 10 Fig. 2 is a simplified enlarged sectional illustration
• Fig. 3A is a simplified, cross-sectional side view of
• an intermediate transfer member including a removable
• FIG. 16 Fig. 3B is a partially cut-away top view of the
• Figs. 4A and 4B are respective top and side views of an
• Fig. 4C shows details of the layered construction of
• Fig. 4D is a cut-away expanded view of a securing
• Fig . 5 is a simplified cross- sectional illustration of
• an imaging sheet preferably an organic compound
• photoreceptor 12 typically mounted on a rotating drum 10.
• Drum 10 is rotated about its axis by a motor or the like
• 17 latent image normally includes image areas at a f irst
• Photoreceptor sheet 12 may use any sui table
• photoreceptor 12 may be deposited on the drum
• photoreceptor 12 may be a non-organic type photoconductor
• Imaging apparatus 16 may be a modulated laser beam 1 scanning apparatus, an optical focusing device for imaging a
• 5 12 in the preferred embodiment of the invention, are a
• Development roller 38 is preferably
• Multicolor liquid developer spray assembly 20 whose
• 31 particles can be directed either onto a portion of the
• 35 assembly 20 may be fixed .
• the spray is directed
• Each of blade assemblies 34 is
• Each cleaning blade assembly 34 includes a toner
• the toner 17 the various developers by mixing of the colors.
• 25 separator 66 may be typically of the type described in U.S.
• Reverse roller 46 which rotates in a direction
• Reverse roller 46 is preferably spaced
• Fluid spray apparatus 48 receives liquid toner from
• Squeegee roller 26 is preferably formed of
• the squeegee roller is
• 36 coating can be made of an elastomer with a controlled 1 conductivity and the lacquer can be omitted.
• the metal core is
• a release agent such as, for example, a
• the polyurethane is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoe 17 then at 120°C for an additional hour.
• a conductive lacquer preferably,
• the coating has a resistivity in the range of 10° to lO 1 ⁇
• cast covering for the core is preferably an elastomer having
• This material can be polyurethane, nitrile or other oil
• the conductive elastomer is preferably
• Discharge device 28 is operative to flood the sheet 12
• 29 assembly 20 receives separate supplies of colored toner
• Figure 1 shows four different colored toner reservoirs 55
• 34 92, 94 and 96 may be provided along respective supply
• multicolor toner spray assembly 36 of pressure to feed the colored toner to multicolor spray 1 assembly 20.
• multicolor toner spray assembly
• 3 receives supplies of colored toner from up to six different
• liquid toners alternatively be employed, including liquid toners and, as
• the invention is prepared using the following method: 6 1) Solubilizing 1400 grams of Nucrel 925 (ethylene
• Cyan, magenta and yellow toners can be produced by using a
• step 2 are used in step 2.
• transfer member 30 is preferably associated with a pressure 1 roller 71 for transfer of the image onto a final substrate
• Cleaning apparatus 32 is operative to scrub clean the
• Cleaning roller 74 which may be
• drum 10 18 purpose is driven in the same sense as drum 10 as indicated
• the surf ace of photoreceptor sheet 12 may be removed by
• Impression roller 71 only produces operative
• each single color 1 image is separately transferred to the substrate via the
• the substrate is any organic compound.
• the substrate is any organic compound.
• FIG. 11 shows a preferred embodiment of the invention.
• Fig 3A shows
• transfer portion 104 As shown most clearly in Fig. 4C, transfer portion 104
• 23 hardness value is between 45-55, preferably about 50.
• Underlying layer 111 is a conductive layer 114 which
• Barrier layer 115 overlays a thin barrier layer 115.
• Barrier layer 115 is a thin barrier layer 115.
• a blanket body 116 comprising a top layer 118, a
• the fabric layer is preferably an adhesive layer 126 which
• Drum 102 is preferably heated by an internal halogen
• the degree of heating will depend on the
• mounting fitting 106 As shown in Figs. 4A, 4B and 4D, mounting fitting 106
• bar 108 is formed with a slot into
• the bar 108 can be formed with sharp internal
• 18 layer 114 may be partially conducting (for example, by the
• adhesive layer may be conductive, such that current also
• 24 106 is formed of a single sheet of metal, wherein the legs
• drum 102 is maintained at a potential suitable
• portion 104 is fabricated by the following procedure:
• the starting structure for blanket construction is a
• One suitable body is MCC-1129-02
• body 116 comprises a fabric
• Layer 120 preferably
• the blanket body is
• Blanket body 116 is preferably sized to a relatively
• the fabric side of blanket body 116 is preferably
• the adhesive is covered with a sheet of mylar 1 coated with a fluorosilicone material, such as DP 5648
• the blanket may
• the drum temperature may reach 80 ⁇ C, 100°C, 120°C or 150 ⁇ C
• Top layer 118 is preferably coated with a sub-micron
• a preferred primer is Dow Corning 1205 Prime Coat. The type
• blanket body 116 may contain materials such as
• barrier layer 115 is preferably coated onto top
• 36 layer should be substantially impervious to such materials 1 in the blanket body which may migrate and/or to the carrier
• the additive materials can cause deterioration of the
• the solvent is
• a somewhat larger thickness is preferably used .
• barrier materials may 1 require lesser or greater thickness depending on their
• body 116 resists leaching by the
• layer 115 may be omitted.
• Polyvinyl alcohol is a thermoplastic crystall ine
• Conductive layer 114 is preferably formed of acrylic
• the conductive layer is
• Printex XE2 (Degussa) are added to the solution and
• the conductive layer has a relatively low resistance
• the conforming layer (layer 111) has a higher
• the conductive layer may be omitted and layer
• 35 118 made conductive.
• the layer should have a
• a wire rod (bar No. 1) coating system is used,
• the material is
• the cured release material has
• 27 legs 110 each have a tip portion 132 and a back portion 134.
• a very soft conforming layer may be used at the
• a very soft layer may be produced by the following
• This step is
• the layer has a Shore A hardness of about 20-24
• the acrylic material may be replaced by other soft materials
• carbon black such as Fe2C>3 or alpha aluminum
• Fig. 5 shows an alternative, preferred embodiment of
• the adhesive layer preferably covers the back of
• the blanket, alternatively the adhesive layer may cover only
• bracket the trailing edge of the blanket
• bracket may, for

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Electrostatic Charge, Transfer And Separation In Electrography (AREA)
• Printing Plates And Materials Therefor (AREA)
• Wet Developing In Electrophotography (AREA)

Priority Applications (4)

Applications Claiming Priority (8)

Publications (1)

Family

ID=27452449

Family Applications (1)

Country Status (6)

Cited By (9)

Families Citing this family (5)

Citations (6)

• 1995
  • 1995-06-06 AU AU25784/95A patent/AU2578495A/en not_active Abandoned
  • 1995-06-06 EP EP95920290A patent/EP0784809B1/de not_active Expired - Lifetime
  • 1995-06-06 WO PCT/NL1995/000188 patent/WO1996011426A1/en active IP Right Grant
  • 1995-06-06 CA CA 2202270 patent/CA2202270A1/en not_active Abandoned
  • 1995-06-06 JP JP51249096A patent/JP3708547B2/ja not_active Expired - Fee Related
  • 1995-06-06 DE DE69528188T patent/DE69528188T2/de not_active Expired - Lifetime
• 2004
  • 2004-02-05 JP JP2004029572A patent/JP2004171022A/ja not_active Withdrawn
  • 2004-10-20 JP JP2004306051A patent/JP3869442B2/ja not_active Expired - Fee Related

Patent Citations (6)

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