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US 6,476,836 B2Granted
Image forming apparatus having a function of saving developing agent
AssigneeRicoh Company, Ltd.
InventorEiji Enami
Life of this patent
Estimating the term…
Abstract
Image data is read in through a scanner unit, and, when a toner saving mode is set, the image data having a pixel value larger than a predetermined threshold is converted into a predetermined PWM pattern, while, for the image data having a pixel value not larger than the predetermined threshold, no output is made.
Claims12
An image forming apparatus comprising:
- an image forming part which forms a visible image based on image data for each pixel by using a developing agent;
- and
- an image converting part which outputs a predetermined developing agent saving pattern for a pixel having a pixel value exceeding a predetermined threshold, but performing no output for a pixel having a pixel value not larger than the predetermined threshold.
An image forming apparatus comprising:
- image forming means (7) for forming a visible image based on image data for each pixel by using a developing agent;
- and
- image converting means (4) for outputting a predetermined developing agent saving pattern for a pixel having a pixel value exceeding a predetermined threshold, but performing no output for a pixel having a pixel value not larger than the predetermined threshold.
Dependencies are inferred from the claim text.