Image Forming Apparatus
First Claim
1. An image forming apparatus comprising:
- an apparatus main body;
a process unit provided in the apparatus main body and having a drive input member; and
a drive transmission member provided in the apparatus main body and configured to engage with the drive input member so as to transmit a driving force to the drive input member while permitting a positional gap of the drive input member within a predetermined range,wherein,the drive transmission member comprises;
a guide core member comprising;
a distal end core portion which is formed at an end portion lying a downstream side in an engagement direction of the drive transmission member with the drive input member and which has a first outside diameter; and
a proximal end core portion which is formed upstream of the distal end core portion in the engagement direction and which has a second outside diameter that is larger than the first outside diameter;
a reciprocating member in which the guide core member is inserted along the engagement direction, the reciprocating member comprising;
a distal end cylindrical portion which has a first inside diameter; and
a proximal end cylindrical portion which is formed upstream of the distal end cylindrical portion in the engagement direction and which has a second inside diameter that is larger than the first inside diameter; and
a pressing member interposed between the guide core member and the reciprocating member for connecting the guide core member and the reciprocating member.
1 Assignment
0 Petitions
Accused Products
Abstract
An image forming apparatus is provided. The image forming apparatus comprises an apparatus main body; a process unit having a drive input member; and a drive transmission member, wherein, the drive transmission member comprises: a guide core member having a distal end core portion which has a first outside diameter; and a proximal end core portion which has a second outside diameter that is larger than the first outside diameter; a reciprocating member in which the guide core member is inserted, the reciprocating member comprising: a distal end cylindrical portion which has a first inside diameter; and a proximal end cylindrical portion which has a second inside diameter that is larger than the first inside diameter; and a pressing member interposed between the guide core member and the reciprocating member for connecting the guide core member and the reciprocating member.
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Citations
6 Claims
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1. An image forming apparatus comprising:
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an apparatus main body; a process unit provided in the apparatus main body and having a drive input member; and a drive transmission member provided in the apparatus main body and configured to engage with the drive input member so as to transmit a driving force to the drive input member while permitting a positional gap of the drive input member within a predetermined range, wherein, the drive transmission member comprises; a guide core member comprising; a distal end core portion which is formed at an end portion lying a downstream side in an engagement direction of the drive transmission member with the drive input member and which has a first outside diameter; and a proximal end core portion which is formed upstream of the distal end core portion in the engagement direction and which has a second outside diameter that is larger than the first outside diameter; a reciprocating member in which the guide core member is inserted along the engagement direction, the reciprocating member comprising; a distal end cylindrical portion which has a first inside diameter; and a proximal end cylindrical portion which is formed upstream of the distal end cylindrical portion in the engagement direction and which has a second inside diameter that is larger than the first inside diameter; and a pressing member interposed between the guide core member and the reciprocating member for connecting the guide core member and the reciprocating member. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification