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US 2016/0103400 A1Published application
Optical scanning device and image forming apparatus provided with same
AssigneeCanon Kabushiki Kaisha
InventorHirotaka Shiomichi
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AssigneeCanon Kabushiki Kaisha
InventorHirotaka Shiomichi
Estimating the term…
An image forming apparatus incudes a driving unit configured to drive a light-emitting element for emitting a laser beam; a rotational polygon mirror scans a photosensitive member with the laser beam. The driving unit executes a first adjustment for causing the light-emitting element to emit light at a first light emission intensity to adjust a first driving current, and a second adjustment for causing the light-emitting element to emit light at a second light emission intensity to adjust a second driving current. During a time period after the polygon mirror has started rotating until a predetermined speed is reached, the driving unit performs the first adjustment and the second adjustment, after the polygon mirror has started rotating and before performing the first adjustment, performs the second adjustment.
An image forming apparatus comprising:
An image forming apparatus comprising:
Dependencies are inferred from the claim text.
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For exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material: with means for…
Scanning systems: using multifaceted mirrors
Using multifaceted mirrors: adaptive control of the scanning light beam, e.g. using the feedback from one or more detectors
For exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material: details of illuminating…
Term end not estimated
1. Field of the Invention
The present invention relates to an image forming apparatus that employs an electrophotographic recording process to form an image. Examples of such image forming apparatus include a laser printer, a copying machine, a facsimile machine, of a multifunction printer (MFP).
2. Description of the Related Art
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the invention and, together with the description, serve to explain the principles of the invention.
FIG. 1 is a diagram illustrating an example of schematic cross-sectional view of an image forming apparatus.
FIG. 2 is a diagram illustrating an outline of an optical scanning device.
Various exemplary embodiments, features, and aspects of the invention will be described in detail below with reference to the drawings.
However, the components described in the first exemplary embodiment are only illustrative, and it is not intended to limit the scope of the invention only to these.
FIG. 1 is a schematic cross-sectional view of a color image forming apparatus. In the descriptions below, descriptions will be provided with reference to the schematic cross-sectional view of the color image forming apparatus, but it is not limited to this. The weak light emission of the non-image portion as will be described below in detail can be also applied to, for example, a single color image forming apparatus. Hereinbelow, descriptions will be provided taking an in-line type color image forming apparatus as an example however, a rotary type color image forming apparatus may also be used. Hereinbelow, the in-line type color image forming apparatus will be described in detail by way of example.