Title:
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Document Type and Number:
Japanese Patent JP2016045305
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress an image lag by optimally controlling the amount of discharging light and suppress the optical fatigue and the deterioration of a photosensitive body, to prolong the life of the photosensitive body.SOLUTION: An image forming apparatus includes a discharging ability adjustment mode. In this mode, a solid patch part and a blank part are formed in the first round of a photosensitive body 3K, and a halftone patch part is formed in the second round. The potential difference between a first surface potential at a place in the halftone patch part, which has been the solid patch part, and a second surface potential at a place in the halftone patch part, which has been the blank part is detected. When the potential difference is beyond a prescribed value, the amount of light of a discharging lamp 22K is increased until the potential difference is the prescribed value or less, and then a printing operation is started. In the same manner, a discharging ability adjustment mode can also be executed on the basis of the difference in amount of attachment of toner on an intermediate transfer belt 41.SELECTED DRAWING: Figure 7A
Inventors:
ISHII HIROKI
UCHITANI TAKESHI
HIRAYAMA YUJI
TAKESHITA HIRONOBU
YURA JUN
HASHIMOTO SHUNICHI
KANAYA HIDEAKI
KEZUKA SHOGO
UCHITANI TAKESHI
HIRAYAMA YUJI
TAKESHITA HIRONOBU
YURA JUN
HASHIMOTO SHUNICHI
KANAYA HIDEAKI
KEZUKA SHOGO
Application Number:
JP2014168413A
Publication Date:
April 04, 2016
Filing Date:
August 21, 2014
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G03G21/08; G03G15/00
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Hideka Tanaka
Tsuyoshi Kumano
Hideka Tanaka
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