Remaining sheet volume detecting apparatus and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsHiroyuki Ikeuchi, Takuo Matsumura
Life of this patent
Estimating the term…
Abstract
A remaining sheet volume detecting apparatus includes a loading unit that loads a sheet; a driving unit that lifts up the loading unit to a feed position of a loaded sheet; a feeding unit that feeds a sheet from the loading unit that has reached the feed position; a load thickness detecting unit that detects a load thickness of sheets within the loading unit based on a movement amount of the loading unit until the loading unit reaches the sheet feed position; a sheet thickness detecting unit that detects a thickness of a sheet fed by the feeding unit from the loading unit that has reached the feed position; and a remaining sheet volume calculating unit that calculates remaining sheet volume within the loading unit.
Claims6
A remaining sheet volume detecting apparatus, comprising:
- a first loading unit that loads sheets;
- a first driving unit that lifts up the first loading unit to a feed position of a loaded sheet;
- a first feeding unit that feeds the sheet from the first loading unit that has reached the feed position;
- a load thickness detecting unit that detects a load thickness of sheets within the first loading unit based on a movement amount of the first loading unit until the first loading unit reaches the sheet feed position after a lift-up operation of the first loading unit is started by the first driving unit;
- a sheet thickness detecting unit that detects a thickness of the sheet fed by the first feeding unit from the first loading unit that has reached the feed position;
- and
- a remaining sheet volume calculating unit that calculates remaining volume of sheets within the first loading unit based on the load thickness detected by the load thickness detecting unit and the sheet thickness detected by the sheet thickness detecting unit.
An image forming apparatus comprising:
- a paper loading unit that loads papers to be used as a recording medium;
- a driving unit that lifts up the paper loading unit to a feed position of a loaded paper;
- a feeding unit that feeds the paper from the paper loading unit that has reached the feed position;
- a load thickness detecting unit that detects a load thickness of the papers within the loading unit based on a movement amount of the paper loading unit until the paper loading unit reaches the paper feed position after a lift-up operation of the paper loading unit is started by the driving unit;
- a paper thickness detecting unit that detects a thickness of the paper fed by the feeding unit from the paper loading unit that has reached the feed position;
- a remaining paper volume calculating unit that calculates remaining paper volume within the loading unit based on the load thickness detected by the load thickness detecting unit and the paper thickness detected by the paper thickness detecting unit;
- and
- a displaying unit that displays the remaining paper volume calculated by the remaining paper volume calculating unit.
Dependencies are inferred from the claim text.