Sheet feeding device and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTetsuji Kurata, Kosuke Yamamoto, Junichi Yoshikawa, Yasuyuki Hirai, Yoshitaka Okamura
Life of this patent
Estimating the term…
Abstract
A burden on a user when changing sheets such as with an ink jet printer and the like is reduced, and the necessary stack space is secured without considering the step difference up to the mounting surface of an ejected paper tray worth of the amount of curls for sheets that easily curls such as post cards and the like. Thus, enlargement of the apparatus and increase in the manufacturing cost are suppressed, and is easily adopted for low cost type for mass consumption.
Claims14
A sheet feeding device comprising a sheet accommodating section detachably attachable with an image forming apparatus main body, comprising:
- a first accommodating part for accommodating sheets;
- a cover member for opening and closing said first accommodating part;
- a second accommodating part arranged to said cover member, for accommodating sheets smaller in size than the sheets accommodated in said first accommodating part;
- and
- a transmission member arranged to said cover member, for transmitting the power from a power driving source of the image forming apparatus main body to said second accommodating part, whereby said second accommodating part is movable with relation to said first accommodating part,
- wherein a lock member is arranged in the sheet accommodating section, the lock member inhibiting the operation of the transmission member and locking the movement of the second accommodating part.
A sheet feeding device comprising a sheet accommodating section detachably attachable with an image forming apparatus main body, comprising:
- a first accommodating part for accommodating sheets;
- a cover member for opening and closing said first accommodating part;
- a second accommodating part arranged to said cover member, for accommodating sheets smaller in size than the sheets accommodated in said first accommodating part;
- a transmission member arranged to said cover member, for transmitting the power from a power driving source of the image forming apparatus main body to said second accommodating part, whereby said second accommodating part is movable with relation to said first accommodating part;
- and
- an ejected paper tray for mounting and stacking sheets ejected from the image forming apparatus main body, at least one part of an ejected paper surface of the ejected paper tray lowering with the movement of the second accommodating part and depressing into a concave shape to enlarge a stack space in a mounting direction.
An image forming apparatus detachably attached with a sheet accommodating section, comprising:
- a first accommodating part for accommodating sheets;
- a cover member for opening and closing said first accommodating part;
- a second accommodating part arranged to said cover member, for accommodating sheets smaller in size than the sheets accommodated in said first accommodating part;
- and
- a transmission member arranged to said cover member, for transmitting the power from a power driving source to said second accommodating part, whereby said second accommodating part is movable with relation to said first accommodating part,
- wherein a lock member is arranged in the sheet accommodating section, the lock member inhibiting the operation of the transmission member and locking the movement of the second accommodating part.
An image forming apparatus detachably attached with a sheet accommodating section, comprising:
- a first accommodating part for accommodating sheets;
- a cover member for opening and closing said first accommodating part;
- a second accommodating part arranged to said cover member, for accommodating sheets smaller in size than the sheets accommodated in said first accommodating part;
- and
- a transmission member arranged to said cover member, for transmitting the power from a power driving source to said second accommodating part, whereby said second accommodating part is movable with relation to said first accommodating part;
- and
- an ejected paper tray for mounting and stacking sheets ejected from the image forming apparatus main body, at least one part of an ejected paper surface of the ejected paper tray lowering with the movement of the second accommodating part and depressing into a concave shape to enlarge a stack space in a mounting direction.
Dependencies are inferred from the claim text.