KR20070048599A - 화상 형성 장치 및 그 클리닝 방법 - Google Patents
화상 형성 장치 및 그 클리닝 방법 Download PDFInfo
- Publication number
- KR20070048599A KR20070048599A KR1020060105521A KR20060105521A KR20070048599A KR 20070048599 A KR20070048599 A KR 20070048599A KR 1020060105521 A KR1020060105521 A KR 1020060105521A KR 20060105521 A KR20060105521 A KR 20060105521A KR 20070048599 A KR20070048599 A KR 20070048599A
- Authority
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- South Korea
- Prior art keywords
- charging roll
- cleaning
- image forming
- forming apparatus
- charging
- 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.)
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Images
Classifications
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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
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
- G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
- G03G15/0225—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers provided with means for cleaning the charging member
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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
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0258—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices provided with means for the maintenance of the charging apparatus, e.g. cleaning devices, ozone removing devices G03G15/0225, G03G15/0291 takes precedence
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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
- G03G15/14—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
- G03G15/1665—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat
- G03G15/167—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer
- G03G15/168—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 by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat at least one of the recording member or the transfer member being rotatable during the transfer with means for conditioning the transfer element, e.g. cleaning
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- 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
- G03G2215/16—Transferring device, details
- G03G2215/1647—Cleaning of transfer member
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/0005—Cleaning of residual toner
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Photoreceptors In Electrophotography (AREA)
- Developing Agents For Electrophotography (AREA)
Abstract
Description
Claims (14)
- 상담지체(像擔持體)와,상기 상담지체에 접촉하면서 회전하여 상기 상담지체를 대전(帶電)시키는 대전 롤과,상기 대전 롤의 표면에 접촉하여 상기 대전 롤의 표면에의 부착물을 제거하는 클리닝 부재를 구비한 화상 형성 장치로서,상기 클리닝 부재는 발포체이며, 평균 셀 직경이 0.18㎜ 이상 1.0㎜ 이하이고, 상기 대전 롤의 십점(十点) 표면 거칠기(Rz : JIS B0601-1982)가 1㎛ 이상 17㎛ 이하인 화상 형성 장치.
- 제 1 항에 있어서,상기 대전 롤의 십점 표면 거칠기(Rz : JIS B0601-1982)가 7.0㎛ 이하인 화상 형성 장치.
- 제 1 항에 있어서,상기 대전 롤의 십점 표면 거칠기(Rz : JIS B0601-1982)가 3.0㎛ 이하인 화상 형성 장치.
- 제 1 항에 있어서,상기 클리닝 부재의 셀 수가 40(개/25㎜) 이상, 80(개/25㎜) 이하인 화상 형성 장치.
- 제 1 항에 있어서,상기 상담지체에 형성되는 정전(靜電) 잠상(潛像)을 현상하는 현상제에 구형의 실리카가 포함되어 있는 화상 형성 장치.
- 제 1 항에 있어서,상기 상담지체가 폴리테트라플루오로에틸렌을 포함하고 있는 화상 형성 장치.
- 제 1 항에 있어서,상기 상담지체에 형성되는 정전 잠상을 현상하는 현상제에 포함되는 토너가 중합(重合) 토너인 화상 형성 장치.
- 제 1 항에 있어서,상기 대전 롤의 대전 방식이 AC+DC 인가 방식인 화상 형성 장치.
- 제 1 항 내지 제 8 항 중 어느 한 항에 있어서,상기 클리닝 부재가 발포(發泡) 우레탄 수지를 포함하여 구성되어 있는 화상 형성 장치.
- 제 1 항에 있어서,상기 셀 내에는 상기 대전 롤의 표면에의 부착물이 수용되어 응집체로 되는 화상 형성 장치.
- 제 10 항에 있어서,상기 응집체가 적당한 크기로 되면, 상기 셀로부터 상기 대전 롤을 통하여 상기 상담지체로 이동하는 화상 형성 장치.
- 상담지체와, 상기 상담지체를 접촉 대전에 의해 대전시키는 대전 롤과, 상기 대전 롤의 표면을 클리닝하는 클리닝 부재를 구비한 화상 형성 장치의 클리닝 방법으로서,복수의 셀을 갖는 발포체에 의해 구성되는 상기 클리닝 부재 중 적어도 1개의 표면층을 형성하는 과정과,상기 클리닝 부재의 표면층을 상기 대전 롤의 표면에 접촉시킴으로써, 상기 대전 롤의 표면에의 부착물을 제거하는 과정과,상기 발포체의 상기 각 복수의 셀 내에서의 제거된 부착물을 응집하는 과정과,한층 응집하여, 상기 각 복수의 셀 내에서의 응집체를 크게 하는 과정과,상기 크게 된 응집체를 상기 발포체의 상기 각 복수의 셀 내로부터 상기 대전 롤의 표면으로 방출하는 과정을 구비하는 것을 특징으로 하는 클리닝 방법.
- 제 12 항에 있어서,상기 커진 응집체는 중력과 기계적 스트레스 중 적어도 1개에 의해, 상기 각 복수의 셀로부터 방출되는 클리닝 방법.
- 제 12 항에 있어서,상기 커진 응집체는 상기 대전 롤의 표면으로부터 상기 상담지체의 표면까지 이동하는 과정과,상기 상담지체의 표면에 있는 상기 커진 응집체를 회수하는 과정을 더 포함하는 클리닝 방법.
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