Image forming apparatus and image forming method with detecting a positional deviation in a main scanning direction

In an image forming apparatus that transfers images formed on plural photosensitive drums onto a belt in a superimposing manner to produce a multi-color image, a positional deviation in a main scanning direction, which is generated while transferring the images formed, is detected. An eccentricity p...

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Bibliographische Detailangaben
1. Verfasser:	MASUBUCHI FUMIHITO
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY CORRECTION OF TYPOGRAPHICAL ERRORS ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	In an image forming apparatus that transfers images formed on plural photosensitive drums onto a belt in a superimposing manner to produce a multi-color image, a positional deviation in a main scanning direction, which is generated while transferring the images formed, is detected. An eccentricity phase of each of the photosensitive drums is calculated based on the positional deviation detected, and a rotational phase of the photosensitive drums is controlled based on the eccentricity phase calculated.