Image forming apparatus including speed detection mechanism for a rotary member

Image forming apparatus including speed detection mechanism for a rotary member

An image forming apparatus including a rotary member (10) having an image formation area, and a scale (70) located at a position outside of the image formation area and on an inner circumference of the rotary member (10). Also included is a drive device (80) configured to drive the rotary member (10...

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Bibliographische Detailangaben
Hauptverfasser: TOSHIYUKI ANDOH, TAKUROH KAMIYA, KOICHI KUDO, KATSUYA KAWAGOE, JUNYA TAKIGAWA, YOSHIHIRO SAKAI, RYUUICHI MIMBU
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung:An image forming apparatus including a rotary member (10) having an image formation area, and a scale (70) located at a position outside of the image formation area and on an inner circumference of the rotary member (10). Also included is a drive device (80) configured to drive the rotary member (10), a developing device configured to develop an image on the image formation area of the rotary member, and a transfer device (22) configured to transfer the image on the image formation area to a recording sheet. Further included is a sensor (71) configured to detect the scale (70) on the rotary member (10) and to output a signal corresponding to the detection of the scale (70).