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US 4,591,903 AGranted
Recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsNaoto Kawamura, Nobuo Kitajima
Life of this patent
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Abstract
There is disclosed a laser beam printer for high-speed printing, in which an image is formed by superposing plural images formed on plural image members by means of plural lasers controlled by a common deflector.
Claims21
A recording apparatus comprising:
- plural recording members;
- laser beam generating means for generating plural laser beams for image formation on said plural recording members in response to image signals, wherein individual images formed on said plural recording members are superposed to obtain a combined color image;
- and
- deflecting means for simultaneously deflecting said plural laser beams toward said plural recording members, wherein said deflecting means is commonly used for plural laser beams.
1 more element
A recording apparatus comprising:
- first laser beam generating means driven in response to first image information;
- second laser beam generating means driven in response to second image information;
- a first recording member for forming a first image by scanning with a first laser beam emitted by said first laser beam generating means;
- a second recording member for forming a second image by scanning with a second laser beam emitted by said second laser beam generating means;
- wherein the scanning direction of said first laser beam is opposite to that of said second laser beam;
- first image information output means for supplying said first laser beam generating means with said first image information in a same order as it is received;
- and
- second image information output means for supplying said second laser beam generating means with said second image information in an inverted order.
5 more elements
A recording apparatus comprising:
- plural recording members;
- laser beams generating means for generating plural laser beams for image formation on said plural recording members in response to image signals;
- deflecting means for deflecting said plural laser beams toward said plural recording members, wherein said deflecting means is used for plural laser beams and is so positioned as to obtain mutually different optical path lengths for the plural laser beams deflected by said deflecting means;
- and
- means for correcting said difference in optical path lengths.
2 more elements
A recording apparatus comprising:
- recording means having plural recording stations;
- laser beam generating means for generating plural laser beams for image formation at said plural recording stations in response to image signals;
- and
- deflecting means for simultaneously deflecting each one of said plural laser beams toward a different one of said plural recording stations.
1 more element
Dependencies are inferred from the claim text.