SHEET STACKING DEVICE, SHEET STACKING METHOD AND PROGRAM

To provide a sheet stacking device, a sheet stacking method, and a program capable of determining presence or absence of an abnormality, when a foreign object is placed on a stacking tray that moves in a vertical direction, or when a foreign object is placed in an operating area below the stacking t...

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Bibliographic Details
Main Authors ISHIHARA YASUHIRO, EGUCHI TATSUYA, IGUCHI YUKINORI, WATANABE TAKASHI
Format Patent
LanguageEnglish
Japanese
Published 15.06.2023
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Summary:To provide a sheet stacking device, a sheet stacking method, and a program capable of determining presence or absence of an abnormality, when a foreign object is placed on a stacking tray that moves in a vertical direction, or when a foreign object is placed in an operating area below the stacking tray, etc.SOLUTION: A sheet stacking device includes: stacking trays 33 and 51 for stacking sheets on which images are formed; driving means 315 for moving the stacking tray upward or downward from a home position and then returning it to the home position; load detection means 300 for detecting a drive load when the drive means moves the stacking tray; distance detection means 300 for detecting a distance from the home position of the stacking tray; and judging means 300 for judging whether there is an abnormality based on a driving direction of the stacking tray, the drive load detected by the load detecting means, and the distance from the home position detected by the distance detecting means.SELECTED DRAWING: Figure 6 【課題】上下方向に移動する積載トレイの上に異物が載せられた場合や、積載トレイの下方の稼働エリアに異物が置かれた場合等、異常の有無を判断することができるシート積載装置、シート積載方法及びプログラムを提供する。【解決手段】画像が形成されたシートを積載する積載トレイ33、51と、積載トレイをホーム位置から上方あるいは下方に移動させ、さらにホーム位置へ移動復帰させる駆動手段315と、駆動手段が積載トレイを移動させるときの駆動負荷を検出する負荷検出手段300と、積載トレイのホーム位置からの距離を検出する距離検出手段300と、積載トレイの駆動方向と、負荷検出手段により検出された駆動負荷と、距離検出手段により検出されたホーム位置からの距離に基づいて、異常の有無を判断する判断手段300と、を備えている。【選択図】図6
Bibliography:Application Number: JP20210197039