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Title:
オンラインの画質評価を有する画像形成デバイスおよび関連する方法
Document Type and Number:
Japanese Patent JP4907040
Kind Code:
B2
Abstract:
An electrophotographic (EP) image-forming device and related method are provided for on-line quantitative assessment of the image information and development process. The EP image-forming device has a primary charger (118), an exposure device (120), a toning station (125), a transfer charger (130), a fusion station (140), and a cleaner (150) operatively disposed about the photoconductor. A transmission densitometer (165, 170) is positioned adjacent to the photoconductor. The densitometer determines the photoconductor density and the combination photoconductor and toner density for each step area on the image frame. The density readings are stored in memory. The photoconductor densities are subtracted from the combined densities to provide measured toner densities, which are then averaged for each step area. The average measured toner densities or voltage readings are compared to the aim toner densities or voltage readings for each step in the step tablet to quantitatively assess the image quality of the image-forming process. Preferably, every image frame on the photoconductor is assessed successively.

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Inventors:
レジェルスバーガー, マチアス, エイチ.
ゴネッラ, アルフレッド, ジュニア.
ホッケイ, デビッド, イー.
Application Number:
JP2002515526A
Publication Date:
March 28, 2012
Filing Date:
July 06, 2001
Export Citation:
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Assignee:
イーストマン コダック カンパニー
International Classes:
G03G15/00; G03G21/00
Domestic Patent References:
JP7077866A
JP2029668A
JP4146459A
JP11296027A
JP10020578A
JP7253703A
JP6175449A
JP5165943A
JP4366972A
Attorney, Agent or Firm:
特許業務法人YKI国際特許事務所