Electrophotography – Having particular structure – Modular or displaceable
Reexamination Certificate
2008-10-24
2011-11-22
Gray, David (Department: 2852)
Electrophotography
Having particular structure
Modular or displaceable
C399S297000
Reexamination Certificate
active
08064797
ABSTRACT:
An image forming apparatus includes an image bearing member, a rotatable belt member configured to contact the image bearing member, a belt unit configured to support the belt member and removably mounted on the image forming apparatus, an operation unit disposed on the belt unit, a belt unit moving mechanism configured to cause the belt member to contact the image bearing member when the operation unit is in a first position and to cause the belt member to separate from the image bearing member when the operation unit is in a second position, and a tensile force releasing mechanism configured to release a tensile force applied to the belt member when the belt unit is pulled out from the image forming apparatus and the operation unit is in a third position.
REFERENCES:
patent: 2004/0228653 (2004-11-01), Yoshino
patent: 2005/0019066 (2005-01-01), Ito et al.
patent: 2006/0072929 (2006-04-01), Takahashi
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patent: 2007219373 (2007-08-01), None
Canon Kabushiki Kaisha
Canon USA Inc IP Division
Gray David
Hyder G. M.
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