Title:
IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP3160027
Kind Code:
B2
Abstract:
PURPOSE: To make exclusive time for control unnecessary, to measure the printing state of a continuous original and background density without malfunction, and to stably control the above including the characteristic of a photosensitive body by controlling a density adjustment means for a n+1 page onwards according to density signal of a first page to nth page of the original when image formation is carried out while carrying out an automatic density adjustment for the continuous original and carrying out copying of a superior reproduction.
CONSTITUTION: The device is provided with a control means carrying out adjustment of developed density for each page while detecting the density of each page and controlling at least one of electrification quantity of a photosensitive body 31, light quantity of a light source 3, and developing bias voltage by the developing density adjustment means and controlling the image condition as a fixed value according to the density information of the first page to nth page for the (n+1) page onward for the first page to the nth page of the continuous original 13.
Inventors:
Tetsuhiro Shibayama
Hiroaki Tsuchiya
Hiroaki Tsuchiya
Application Number:
JP26453591A
Publication Date:
April 23, 2001
Filing Date:
October 14, 1991
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B27/72; G03G15/00; G03G15/04; G03G15/043; G03G15/06; G03G21/14; (IPC1-7): G03G15/00; G03G21/14
Domestic Patent References:
| JP1238675A | ||||
| JP62283368A | ||||
| JP6039662A | ||||
| JP59157659A | ||||
| JP59157628A | ||||
| JP62129870A | ||||
| JP61183673A | ||||
| JP354951U |
Attorney, Agent or Firm:
Hiroyuki Niwa (1 outside)
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