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AssigneeCanon Kabushiki Kaisha
InventorsKeiji Okano, Gaku Konishi, Akira Domon
Estimating the term…
When a user changes a density adjusting value (developing contrast), and even when variations in the usage state of process characteristics (of the photosensitive body and the developing device) of the cartridge change, the amount of recording agent consumed can be suppressed to be low, and a sharp line image can be recorded. An image forming apparatus of this invention includes an edge detecting portion for detecting an edge of image data, an image data correcting portion for correcting image data inside the edge so as to decrease its density, a laser driving circuit for forming an electrostatic latent image on a photosensitive body, and a correction value determining table for acquiring an instruction value for giving an instruction to correct a density contrast, wherein a correction condition for image data changes in accordance with an instruction value.
A memory device for an image forming apparatus, wherein
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
1. Field of the Invention
The present invention relates to an image forming method and apparatus and, more particularly, to an electrophotographic image forming apparatus such as a laser beam printer or copying machine, a control method therefor, and a process cartridge.
2. Related Art
The above and other objects, features, and advantages of the present invention will be apparent from the following detailed description in conjunction with the accompanying drawings and the appended claims.
FIG. 1 is a view showing the arrangement of the main part of an image forming apparatus to which the present invention can be applied;
FIG. 2 is a schematic sectional view of the image forming apparatus to which the present invention can be applied;
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
(First Embodiment)
FIG. 1 is a schematic sectional view of an image forming apparatus to which the present invention can be applied. FIG. 2 shows the arrangement of the main part of the apparatus.
Electronically readable memory: for auto-setting of process parameters, lifetime, usage
For developing: arrangements for controlling the potential of the developing electrode
By photographic printing , e.g. by laser printers: generating or processing printable items, e.g. characters
Cartridge systems: cartridges having electronically readable memory
Term ended 9 Nov 2021 (estimated)