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US 8,284,227 B2Granted
Image forming apparatus and image forming method
AssigneeCanon Kabushiki Kaisha
InventorYoshihisa Nomura
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AssigneeCanon Kabushiki Kaisha
InventorYoshihisa Nomura
Estimating the term…
In a printing device provided with a multi-laser beam, an image gradation occurs due to a difference in characteristics between respective beams. The output beam number is changed by referring to a profile (curvature, tilt, polarity and beam scan interval) of each laser beam to perform a print at an engine rotation speed corresponding to the beam number.
An image forming apparatus comprising:
An image forming method comprising the steps of:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
In which the charge pattern is formed dotwise, e.g. by a thermal head: by application of light, e.g. using a LED array
Circuits exciting or modulating particular heads for reproducing continuous tone value scales: for a plurality of reproducing elements simultaneously
For exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material: with means for…
Structural features of the fixing device: variable fixing speed
About 4 years 6 months of term left · ends 23 Apr 2031 (estimated)
1. Field of the Invention
The present invention relates to a color image forming apparatus provided with a multi-laser beam.
2. Description of the Related Art
FIG. 1 is a flow chart showing the process order in a color image forming apparatus according to a first embodiment;
FIG. 2 is a cross section of a color image forming apparatus of a tandem process using an intermediate transfer body as an example of a color image forming apparatus of an electrographic process;
FIGS. 3A and 3B are diagrams each explaining a profile characteristic of a scan line of each color in the image forming apparatus;
<First Embodiment>
Hereinafter, the best mode of carrying out the present invention will be explained with reference to the attached drawings.
FIGS. 4A to 4C are block diagrams explaining an arrangement of each unit relating to static latent image production in the color image forming apparatus of the electrographic process. The color image forming apparatus is configured by an image forming unit 401 and an image processing unit 402, wherein bit map image information is generated in the image processing unit 402 and the image forming unit 401 performs image formation on a print medium based upon the bit map image information.