Image forming apparatus having a function of saving developing agent
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
Patent Number
US 6476836
Status
Active
Filing Date
September 4, 2001
Grant Date
November 5, 2002
Expiration
~September 2021 (estimated)
Claims
14
Assignee
Ricoh Co Ltd
Inventors
Eiji Enami
Citations
9 forward · 10 backward
What it covers
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.
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US 6476836 · 2026