Title:
画像形成装置
Document Type and Number:
Japanese Patent JP4080686
Kind Code:
B2
Abstract:
An image forming apparatus forms on a photoconductive body an evaluation chart including first patterns and second patterns. In the first pattern, with respect to a row of dots formed in a main scan direction by a predetermined light beam, a row of dots formed by a next light beam is shifted in the main scan direction, and in the second pattern, with respect to the row of dots formed in the main scan direction by the predetermined light beam, the row of dots formed by the next light beam is shifted in the main scan direction but in a direction opposite to a shift direction of the first pattern. The evaluation chart includes a first pattern group which is formed by the first patterns which are repeated, and a second pattern group which is formed by the second patterns which are repeated.
Inventors:
Toshihiro Takesue
Application Number:
JP2000337941A
Publication Date:
April 23, 2008
Filing Date:
November 06, 2000
Export Citation:
Assignee:
株式会社リコー
International Classes:
B41J2/44; B41J2/447; B41J2/47; G03F3/08; H04N1/113; H04N1/23
Domestic Patent References:
| JP2000085177A | ||||
| JP11170597A | ||||
| JP11147327A | ||||
| JP11188917A | ||||
| JP10062705A | ||||
| JP9266534A | ||||
| JP62199478A | ||||
| JP2000221424A | ||||
| JP2000168133A |
Attorney, Agent or Firm:
Masaharu Uemoto