Classifications

• • 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
  • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
  • G03G15/04018—Image composition, e.g. adding or superposing informations on the original image
• • 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
  • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
  • G03G15/045—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
  • G03G15/047—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G2215/00—Apparatus for electrophotographic processes
  • G03G2215/04—Arrangements for exposing and producing an image
  • G03G2215/0429—Changing or enhancing the image
  • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
  • G03G2215/0448—Charge-erasing means for the non-image area
  • G03G2215/0451—Light-emitting array or panel

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Exposure Or Original Feeding In Electrophotography (AREA)
• Combination Of More Than One Step In Electrophotography (AREA)
• Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
• Control Or Security For Electrophotography (AREA)
• Discharging, Photosensitive Material Shape In Electrophotography (AREA)
• Fax Reproducing Arrangements (AREA)
• Devices For Indicating Variable Information By Combining Individual Elements (AREA)
• Accessory Devices And Overall Control Thereof (AREA)
• Dot-Matrix Printers And Others (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22518657

Family Applications (1)

Country Status (8)

Families Citing this family (8)

Family Cites Families (3)

• 1981
  • 1981-03-13 JP JP3550981A patent/JPS572061A/ja active Granted
  • 1981-03-19 EP EP81102041A patent/EP0039403B1/en not_active Expired
  • 1981-03-19 DE DE8181102041T patent/DE3162574D1/de not_active Expired
  • 1981-03-26 CA CA000373903A patent/CA1176301A/en not_active Expired
  • 1981-04-01 ZA ZA00812195A patent/ZA812195B/xx unknown
  • 1981-05-04 ES ES501850A patent/ES501850A0/es active Granted
  • 1981-05-04 IE IE980/81A patent/IE51609B1/en unknown
  • 1981-05-05 BR BR8102740A patent/BR8102740A/pt unknown

Also Published As

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