Incremental printing of symbolic information – Electric marking apparatus or processes – Electrostatic
Reexamination Certificate
2006-12-26
2006-12-26
Tran, Huan (Department: 2861)
Incremental printing of symbolic information
Electric marking apparatus or processes
Electrostatic
C347S236000
Reexamination Certificate
active
07154517
ABSTRACT:
This invention provides an image forming apparatus that can suppress variations in writing densities of LED heads and form stable images.An image forming apparatus has an image retainer1for retaining a toner image, an image writing unit3equipped with a plurality of LED heads31to form a static latent image the image retainer1, a developing unit4for developing the static latent image formed by the image writing unit3with a developing agent, a patch formation controller23for forming patches for each LED head on the image retainer1, a density detector25for detecting the density of each patch formed by the patch formation controller23, and a correction controller26for correcting the light amount of each LED head by the density detected by the density detector25.
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* English Abstract for JP 2000-071508.
Kawasaki Shinpei
Matsudaira Tadashi
Oyama Hiroshi
Takahashi Katsunori
Watanabe Masayuki
Cantor & Colburn LLP
Konica Minolta Business Technologies Inc.
Tran Huan
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