Title:
COLOR IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP3932715
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent deterioration in printing quality by decreasing deviation in position of AC component in a subscanning direction (deviation in position of a registration pattern due to variation in cycle).
SOLUTION: This color image forming device is provided with plural driving motors 5k, 5y, 5m and 5c by which plural photoreceptors 6k, 6y, 6m and 6c are independently drived, plural motor rotation control parts 4k, 4y, 4m and 4c by which respective rotation controls of plural driving motors are independently carried out, plural rotational phase detection parts 7k, 7y, 7m and 7c to detect respective rotation phases of plural photoreceptors, a rotational phase deviation calculating part 3 calculating the deviation in rotational phase of the other photoreceptors 6y, 6m and 6c against the rotational phase of the photoreceptor 6k that is made a reference, a phase compensation setting part 1 where the deviation in rotational phase at the time of a printing operation is set and a phase compensation control part 2 that compensates the rotational phase of the other photoreceptors based on a calculated rotational phase deviation and the set rotational phase deviation.
Inventors:
Moji Yosuke
Tadayuki Kajiwara
Takashi Maeda
Kazunori Nakamura
Tadayuki Kajiwara
Takashi Maeda
Kazunori Nakamura
Application Number:
JP5411499A
Publication Date:
June 20, 2007
Filing Date:
March 02, 1999
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G03G15/01; G03G21/14; G03G15/16; (IPC1-7): G03G15/01; G03G15/16; G03G21/14
Domestic Patent References:
| JP63221362A | ||||
| JP4093861A | ||||
| JP8190244A | ||||
| JP9146329A | ||||
| JP10213938A | ||||
| JP10221915A | ||||
| JP10333398A | ||||
| JP11024363A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano