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US 9,187,276 B2Granted
Recording material conveyance apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoko Maeshima
Life of this patent
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Abstract
An image forming apparatus includes a conveyance unit configured to convey a recording material, a driving unit configured to drive the conveyance unit based on a manipulated variable corresponding to a deviation between a conveyance speed of the recording material and a target conveyance speed, and a control unit configured to change a control method for controlling the manipulated variable required to drive the driving unit according to a state in which the recording material is conveyed by the conveyance unit.
Claims11
An image forming apparatus comprising:
- a conveyance unit configured to convey a recording material;
- a driving unit configured to drive the conveyance unit;
- a plurality of control units each configured to calculate a manipulated variable according to a deviation between a value related to a conveyance speed of the recording material and a value related to a target conveyance speed;
- and
- a selection unit configured to select at least one manipulated variable from among plural manipulated variables calculated by the plurality of control units,
- wherein in a case where a recording material is positioned in a first period, the recording material is conveyed according to a first combination of at least one manipulated variable selected by the selection unit, and in a case where a recording material is positioned in a second period that is different from the first period, the recording material is conveyed according to a second combination of at least one manipulated variable selected by the selection unit,
- wherein the first combination and second combination are different.
4 more elements
A recording material conveyance apparatus comprising:
- a conveyance unit configured to convey a recording material;
- a driving unit configured to drive the conveyance unit;
- a plurality of control units each configured to calculate a manipulated variable according to a deviation between a value related to a conveyance speed of the recording material and a value related to a target conveyance speed;
- and
- a selection unit configured to select at least one manipulated variable from among plural manipulated variables calculated by the plurality of control units,
- wherein in a case where a recording material is positioned in a first period, the recording material is conveyed according to a first combination of at least one manipulated variable selected by the selection unit, and in a case where a recording material is positioned in a second period that is different from a first period, the recording material is conveyed according to a second combination of at least one manipulated variable selected by the selection unit, and
- wherein the first combination and second combination are different.
4 more elements
Dependencies are inferred from the claim text.