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US5552812A Expired / Lapsed US ⏱️ 0.0 years remaining

Recording apparatus having an ink mist evacuation system

Assignee: Canon Inc
•
Filing: 1995-06-06
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Granted: 1996-09-03
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Expires: 2015-06-06
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Abstract

Abstract A recording apparatus is provided with an upper unit having a recording head for discharging ink for effecting recording on a recording medium in response to information, and at least a portion of the electric circuit of the apparatus, a lower unit having a platen for maintaining the recording medium in the recording station by the recording head, the lower unit capable of being spaced apart relative to the upper unit, and a conveying member for conveying the recording medium to the recording station. The upper unit and the lower unit are capable of being spaced apart and opened in the recording station by the recording head. The recording apparatus further having a blower which introduces air and directs an air stream through the apparatus and past a full page width recording head. The air stream directs ink mist generated by the printhead through a recording medium discharge port such that ink mist is removed from the apparatus body by riding the air stream or by adhering to the recording medium. Internal contamination of the recording apparatus is avoided.

Inventors

  • 👤 Ryuichi Ebinuma
  • 👤 Nobutoshi Mizusawa
  • 👤 Yuji Chiba

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 02:07
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/1752; B41J2/17523; B41J11/00; B41J11/02; B41J11/14; B41J2/135; B41J2/165; B41J2/16517; B41J2/1652; B41J2/16585; B41J2/1714; B41J2/17513; B41J29/00; B41J29/02; B41J29/377; G; G03; G03G; G03G21/00; G03G21/16; G03G21/1604; G03G21/1623; G03G21/1628; G03G21/1642; G03G21/1647; G03G21/20; G03G21/206; H; H04; H04N; H04N1/00; H04N1/00519; H04N1/00525; H04N1/00543; H04N1/00551; H04N1/00554; H04N1/00976; G03G2221/00; G03G2221/16; G03G2221/1645; G03G2221/1651; G03G2221/1672; G03G2221/1678; G03G2221/1687

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 285 words
A recording apparatus comprising: a head mounting section for mounting a full-line type ink jet recording head having an array of ink discharge ports for discharging ink therethrough, said ink jet recording head for recording on an entire width of a recording medium, which is substantially perpendicular to a conveying direction of the recording medium, said array of discharge ports being disposed along the entire width of the recording medium; a first opening section disposed remote from said ink jet recording head in a direction substantially perpendicular to said array of ink discharge ports, said first opening section for introducing air into said recording apparatus; a second opening section disposed in the vicinity of said ink jet recording head, at an exhausting area for exhausting the recording medium from said recording apparatus, and substantially parallel to an alignment direction of said array of ink discharge ports, said second opening section exhausting the air introduced from said first opening section into said recording apparatus to outside of said recording apparatus and including an opening having a length corresponding to a length of said array of ink discharge ports; and blower means for introducing the air into said recording apparatus and forming an air flow in said recording apparatus so that the air is exhausted out of said recording apparatus through said second opening section, said blower means supplying the air from the direction substantially perpendicular to said array of ink discharge ports, wherein a distance between said first opening section and said ink jet recording head and a distance between said blower means and said ink jet recording head are each larger than a distance between said second opening section and said ink jet recording head.
Claim 2
Dependent Claim 285 words
A recording apparatus comprising: a head mounting section for mounting a full-line type ink jet recording head having an array of ink discharge ports for discharging ink therethrough, said ink jet recording head for recording on an entire width of a recording medium, which is substantially perpendicular to a conveying direction of the recording medium, said array of discharge ports being disposed along the entire width of the recording medium; a first opening section disposed remote from said ink jet recording head in a direction substantially perpendicular to said array of ink discharge ports, said first opening section for introducing air into said recording apparatus; a second opening section disposed in the vicinity of said ink jet recording head, at an exhausting area for exhausting the recording medium from said recording apparatus, and substantially parallel to an alignment direction of said array of ink discharge ports, said second opening section exhausting the air introduced from said first opening section into said recording apparatus to outside of said recording apparatus and including an opening having a length corresponding to a length of said array of ink discharge ports; and blower means for introducing the air into said recording apparatus and forming an air flow in said recording apparatus so that the air is exhausted out of said recording apparatus through said second opening section, said blower means supplying the air from the direction substantially perpendicular to said array of ink discharge ports, wherein a distance between said first opening section and said ink jet recording head and a distance between said blower means and said ink jet recording head are each larger than a distance between said second opening section and said ink jet recording head.
Claim 3
Dependent Claim 29 words
An apparatus according to claim 1, wherein said recording head includes an array of electrothermal converting elements and discharges ink by utilizing heat generated by said electrothermal converting elements.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-09-03 2000-03-04 2000-09-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-09-03 2004-03-04 2004-09-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-09-03 2008-03-04 2008-09-03 $7700.00 Window Closed / Lapsed

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