JPH0986680A - Bottom plate lift device for paper feeder - Google Patents
Bottom plate lift device for paper feederInfo
- Publication number
- JPH0986680A JPH0986680A JP7269218A JP26921895A JPH0986680A JP H0986680 A JPH0986680 A JP H0986680A JP 7269218 A JP7269218 A JP 7269218A JP 26921895 A JP26921895 A JP 26921895A JP H0986680 A JPH0986680 A JP H0986680A
- Authority
- JP
- Japan
- Prior art keywords
- bottom plate
- elevating
- paper
- raising
- stopped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複写機やプリンタ
等の画像形成装置においてモータの駆動力により給紙ト
レイ内の底板を昇降させるようにした給紙装置の底板昇
降装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom plate raising / lowering device for a sheet feeding device in which a bottom plate in a sheet feeding tray is moved up and down by a driving force of a motor in an image forming apparatus such as a copying machine or a printer.
【０００２】[0002]
【従来の技術】従来、複写機やプリンタ等の給紙装置の
代表的なものとして、使用する用紙を積載した給紙トレ
イを複写機等の画像形成装置本体に着脱自在に取り付け
るものがある。このような給紙装置の１つとして、給紙
トレイ内に用紙搬送方向直角方向に回動支点を持つ底板
と、底板を昇降させ用紙搬送方向と直角方向に回動支点
を持つ昇降部材を有し、積載用紙量に応じて底板を上昇
させることにより、最上位の用紙を最も良い給紙ポジシ
ョンに位置させる制御を行なう給紙装置が提案されてい
る。この技術においては、昇降モータの応答性の遅れに
よる位置狂いを矯正し、最上位の用紙を最も良い給紙ポ
ジションに位置させる制御として、最初に底板を上昇し
て底板位置を検知した後、底板を下降させ、その後再上
昇させるという駆動制御を行っている2. Description of the Related Art Conventionally, as a typical paper feeding device such as a copying machine or a printer, there is one in which a paper feeding tray on which papers to be used are stacked is detachably attached to an image forming apparatus body such as a copying machine. As one of such paper feeding devices, a bottom plate having a rotation fulcrum in a direction perpendicular to the paper conveyance direction and a lifting member having a rotation fulcrum in a direction perpendicular to the paper conveyance direction for elevating the bottom plate are provided in the paper feed tray. However, there has been proposed a sheet feeding device that controls the uppermost sheet to be positioned at the best sheet feeding position by raising the bottom plate according to the amount of stacked sheets. In this technology, as a control to correct the misalignment due to the delay in the response of the lifting motor and to position the uppermost paper at the best paper feeding position, the bottom plate is first raised to detect the bottom plate position, and then the bottom plate is detected. Drive control that lowers and then raises again.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た給紙装置の底板昇降装置は、積載した用紙の重さ等に
より生ずる慣性力に起因する位置狂いの一部しか矯正で
きず、位置矯正効果が少ないという問題がある。However, the above-described bottom plate lifting device of the sheet feeding device can correct only a part of the positional deviation due to the inertial force generated by the weight of the stacked sheets, and the position correcting effect is not obtained. There is a problem of being few.
【０００４】本発明は上記従来の問題点に鑑み、給紙ポ
ジションの位置矯正に優れた給紙装置の底板昇降装置を
提供することを目的とする。In view of the above conventional problems, it is an object of the present invention to provide a bottom plate raising / lowering device for a sheet feeding device which is excellent in correcting the position of the sheet feeding position.
【０００５】[0005]
【課題を解決するための手段】本発明のうち請求項１に
係る給紙装置の底板昇降装置は、用紙を載置する底板を
有する給紙トレイを画像形成装置本体に着脱自在に取り
付け、上記底板の昇降部材と、上記昇降部材を駆動する
昇降モータと、給紙可能な状態の上記底板の位置を検出
する底板位置検出手段と、上記底板を上昇させて底板位
置を検知した後、一旦上記底板を下降させ、ついで再上
昇させる制御部とを有する給紙装置の底板昇降装置にお
いて、上記底板の再上昇時に上記昇降モータへの入力印
加電圧を低下させることを特徴とする。According to a first aspect of the present invention, there is provided a bottom plate elevating device for a sheet feeding device, wherein a paper feeding tray having a bottom plate on which a sheet is placed is detachably attached to an image forming apparatus main body. An elevating member for the bottom plate, an elevating motor for driving the elevating member, a bottom plate position detecting means for detecting the position of the bottom plate in a paper-feedable state, and an operation for raising the bottom plate to detect the bottom plate position, and then temporarily In a bottom plate elevating device of a sheet feeding device having a control unit for lowering the bottom plate and then raising it again, the input applied voltage to the elevating motor is lowered when the bottom plate is raised again.
【０００６】この請求項１に係る装置は、昇降モータに
よりまず底板を上昇方向に駆動し、底板上昇位置を検知
した後に底板を停止させ、次に底板を下降方向に駆動し
てから再上昇を行なうが、再上昇時に昇降モータへの入
力印加電圧を低下させることにより、底板の再上昇速度
を底板の初期上昇速度より遅くする。In the apparatus according to the first aspect, the bottom plate is first driven in the ascending direction by the lifting motor, the bottom plate is stopped after detecting the bottom plate ascending position, and then the bottom plate is driven in the descending direction, and then the re-elevation is performed. However, the re-raising speed of the bottom plate is made slower than the initial rising speed of the bottom plate by lowering the voltage applied to the lifting motor upon re-raising.
【０００７】本発明のうち請求項２に係る給紙装置の底
板昇降装置は、用紙を載置する底板を有する給紙トレイ
を画像形成装置本体に着脱自在に取り付け、上記底板の
昇降部材と、上記昇降部材を駆動する昇降モータと、給
紙可能な状態の上記底板の位置を検出する底板位置検出
手段と、上記底板を上昇させて底板位置を検知した後、
一旦上記底板を下降させ、ついで再上昇させる制御部と
を有する給紙装置の底板昇降装置において、上記昇降モ
ータの出力軸上に電磁クラッチと該電磁クラッチのギア
に連動するトルクリミッタとを設けたことを特徴とす
る。According to a second aspect of the present invention, there is provided a bottom plate elevating / lowering device for a sheet feeding device, wherein a paper feed tray having a bottom plate on which a sheet is placed is detachably attached to an image forming apparatus main body, and an elevating / lowering member for the bottom plate, An elevating motor for driving the elevating member, bottom plate position detecting means for detecting the position of the bottom plate in a paper feedable state, and raising the bottom plate to detect the bottom plate position,
In a bottom plate lifting device of a sheet feeding device having a control unit for lowering the bottom plate once and then raising it again, an electromagnetic clutch and a torque limiter interlocking with a gear of the electromagnetic clutch are provided on an output shaft of the lifting motor. It is characterized by
【０００８】この請求項２に係る装置は、昇降モータの
出力軸上の電磁クラッチと、この電磁クラッチのギアに
連動するトルクリミッタを設けて、底板の再上昇時にク
ラッチをオンとして負荷を大きくすることにより、底板
の再上昇速度を底板の初期上昇速度より遅くする。According to the second aspect of the present invention, an electromagnetic clutch on the output shaft of the lifting motor and a torque limiter interlocking with the gear of the electromagnetic clutch are provided, and the clutch is turned on to increase the load when the bottom plate is raised again. Thereby, the re-raising speed of the bottom plate is made slower than the initial rising speed of the bottom plate.
【０００９】[0009]
【発明の実施の形態】以下、本発明に係る給紙装置の底
板昇降装置の実施形態を図面を参照して説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a bottom plate lifting device for a sheet feeding device according to the present invention will be described below with reference to the drawings.
【００１０】図１は本発明に係る給紙装置の底板昇降装
置の第１実施形態の断面図であり、図２は同要部の斜視
図である。上部を開放した直方体状の給紙トレイ１の図
中左右の側面には、給紙トレイ１を着脱自在にする摺動
レール１９、２０を突設してある。また、給紙トレイ１
の底部には底板３が設けてあり、底板３を支点２により
給紙トレイ１に軸支し、紙搬送方向に直交する方向に伸
びる回転軸のまわりに回動できるようにしてある。FIG. 1 is a sectional view of a first embodiment of a bottom plate elevating / lowering device of a sheet feeding device according to the present invention, and FIG. 2 is a perspective view of the relevant part. Sliding rails 19 and 20 that make the paper feed tray 1 detachable are provided on the left and right side surfaces of the rectangular parallelepiped paper feed tray 1 in the drawing. Paper tray 1
A bottom plate 3 is provided at the bottom of the paper, and the bottom plate 3 is pivotally supported on the paper feed tray 1 by a fulcrum 2 so as to be rotatable about a rotary shaft extending in a direction orthogonal to the paper transport direction.
【００１１】図中５は昇降部材で、底板３の下方に設け
てあり、軸６と、軸６の一端近くに固定した偏心回転片
７と、軸６の他端近くにその半径方向に突出させて取り
付けた２本の係合突起８とを有する。昇降部材５の軸６
をその中心軸のまわりに回転させると、偏心回転片７も
軸６の中心軸のまわりで回動し、偏心回転片７は底板３
の下面に接して底板３を上方へ持ち上げる。Reference numeral 5 in the drawing denotes an elevating member, which is provided below the bottom plate 3 and has a shaft 6, an eccentric rotating piece 7 fixed near one end of the shaft 6, and a radial direction near the other end of the shaft 6. And two engaging projections 8 attached by being attached. Shaft 6 of lifting member 5
When the eccentric rotary piece 7 is rotated about its central axis, the eccentric rotary piece 7 also rotates around the central axis of the shaft 6, and the eccentric rotary piece 7 moves to the bottom plate 3.
The bottom plate 3 is lifted upward by contacting the lower surface of the bottom plate.
【００１２】図２に示すように、底板昇降装置の駆動部
１４は、昇降モータ１３、昇降モータ１３の出力軸に取
り付けたウォーム・ギア１２、ウォーム・ギア１２と噛
み合うホイール・ギア１１、ホイール・ギア１１と噛み
合う平歯車１０、平歯車１０の回転軸に取り付けたカッ
プリング９からなる。カップリング９は円筒形状であ
り、自由端から回転軸に平行に伸びる４本の切り込みを
有しており、このカップリング９の切り込みに、昇降部
材５の軸６の係合突起８が嵌合して駆動部１４によって
昇降部材５の軸６を回転駆動する。As shown in FIG. 2, the drive unit 14 of the bottom plate lifting device includes a lifting motor 13, a worm gear 12 attached to the output shaft of the lifting motor 13, a wheel gear 11 that meshes with the worm gear 12, and a wheel gear. The spur gear 10 meshes with the gear 11, and the coupling 9 is attached to the rotary shaft of the spur gear 10. The coupling 9 has a cylindrical shape and has four notches extending from the free end in parallel with the rotation axis. The engagement protrusions 8 of the shaft 6 of the elevating member 5 are fitted into the notches of the coupling 9. Then, the drive unit 14 rotationally drives the shaft 6 of the elevating member 5.
【００１３】次に、本発明の第１の実施形態の動作を説
明する。図３は本発明の第１の実施形態の給紙装置の底
板昇降装置の動作を示すフローチャートである。給紙ト
レイ１を装置本体に取り付ける（ステップ１）と、図示
せぬセンサが給紙トレイ１を検知して昇降モータ１３に
正の出力電圧を送り、昇降モータ１３を順方向に回転駆
動する（ステップ２）。昇降モータ１３は昇降部材５の
軸６を正方向に回転駆動し偏心回転片７を軸６のまわり
に回転する。すると、偏心回転片７が底板２を下方から
押し上げ、底板３は支点２を中心として回動して底板３
は上昇する（ステップ３）。Next, the operation of the first embodiment of the present invention will be described. FIG. 3 is a flowchart showing the operation of the bottom plate elevating device of the sheet feeding device according to the first embodiment of the present invention. When the paper feed tray 1 is attached to the apparatus main body (step 1), a sensor (not shown) detects the paper feed tray 1 and sends a positive output voltage to the lifting motor 13 to drive the lifting motor 13 to rotate in the forward direction ( Step 2). The elevating motor 13 rotationally drives the shaft 6 of the elevating member 5 in the positive direction to rotate the eccentric rotating piece 7 around the shaft 6. Then, the eccentric rotating piece 7 pushes up the bottom plate 2 from below, and the bottom plate 3 rotates about the fulcrum 2 to rotate the bottom plate 3.
Rises (step 3).
【００１４】底板位置検出センサ２１が底板３を検知し
たか否かを判断し（ステップ４）、検知しない時には引
き続き昇降モータ１３に正の出力電圧を印加する（ステ
ップ２）が、底板位置検出センサ２１が底板３を検知し
た時には、昇降モータ１３に出力電圧を印加せずに昇降
モータ１３を停止させる（ステップ５）。即ち、底板位
置検出センサ２１が底板を検知すると、底板３は停止し
ようとするが、底板３はその慣性力により、すぐには停
止しようとせず、そうすると位置の狂いが生じる。It is judged whether or not the bottom plate position detection sensor 21 detects the bottom plate 3 (step 4), and if not detected, the positive output voltage is continuously applied to the lifting motor 13 (step 2), but the bottom plate position detection sensor is detected. When 21 detects the bottom plate 3, the elevating motor 13 is stopped without applying an output voltage to the elevating motor 13 (step 5). That is, when the bottom plate position detection sensor 21 detects the bottom plate, the bottom plate 3 tries to stop, but the bottom plate 3 does not try to stop immediately due to its inertial force, and then the position shifts.
【００１５】そこで、昇降モータ１３が停止した後に、
昇降モータ１３を逆転させる（ステップ６）。すると、
底板３は支点２を中心として逆回転して下降する。この
状態で数秒間待機とし（ステップ７）その後に再び昇降
モータ１３を正転させ、底板３を上昇させる（ステップ
９）。このとき昇降モータ１３へ入力する印加電圧を下
げ（ステップ８）、底板３の再上昇（ステップ１０）の
速度を底板３の初期上昇速度より遅くする。そして、底
板位置検出センサ２１が底板３を検知すると（ステップ
１１）、昇降モータ１３を停止させる。即ち、低速度で
再上昇し停止するから、底板３の慣性力は小さくなり、
停止位置の狂いを小さくすることができる。Therefore, after the lifting motor 13 is stopped,
The lifting motor 13 is reversed (step 6). Then
The bottom plate 3 rotates backward about the fulcrum 2 and descends. In this state, the system stands by for a few seconds (step 7), and then the elevating motor 13 is normally rotated again to raise the bottom plate 3 (step 9). At this time, the applied voltage input to the lifting motor 13 is lowered (step 8), and the speed of re-raising of the bottom plate 3 (step 10) is made slower than the initial rising speed of the bottom plate 3. Then, when the bottom plate position detection sensor 21 detects the bottom plate 3 (step 11), the lift motor 13 is stopped. That is, since it re-rises and stops at a low speed, the inertial force of the bottom plate 3 becomes small,
The deviation of the stop position can be reduced.
【００１６】図４は本発明の第２の実施形態の給紙装置
の底板昇降装置の要部斜視図である。なお、先の実施形
態と同一の部分は同一の符号を付し、重複する説明は省
略する。FIG. 4 is a perspective view of an essential part of a bottom plate elevating device of a sheet feeding device according to the second embodiment of the present invention. The same parts as those in the previous embodiment are designated by the same reference numerals, and the duplicated description will be omitted.
【００１７】この実施形態の昇降モータ１３の出力軸１
８には電磁クラッチ２２を取り付けてあり、電磁クラッ
チ２２にはギア１５が装着してある。また、昇降モータ
１３の出力軸１８と平行に伸びる回転軸を駆動部１４に
軸支し、この回転軸にギア１６を取り付け、ギア１５に
噛み合わせる。ギア１６にはトルクリミッタ１７を一体
化して設けてある。Output shaft 1 of lifting motor 13 of this embodiment
8, an electromagnetic clutch 22 is attached, and a gear 15 is attached to the electromagnetic clutch 22. Further, a rotary shaft extending parallel to the output shaft 18 of the lifting motor 13 is pivotally supported by the drive unit 14, a gear 16 is attached to the rotary shaft, and the gear 15 is meshed with the gear 15. A torque limiter 17 is provided integrally with the gear 16.
【００１８】次に、この第２の実施形態の動作を説明す
る。図５は本発明の第２の実施形態の給紙装置の底板昇
降装置の動作を示すフローチャートである。給紙トレイ
１の取り付け（ステップ１）から昇降モータ１３の逆転
後の待機（ステップ７）までの動作は、第１実施形態の
動作を示す上述の図３のフローチャートに示す動作と同
一であるので説明は省略する。昇降モータ１３を数秒間
待機させた後、昇降モータ１３を再び正転させて底板２
を再上昇させる（ステップ９、１０）前に、電磁クラッ
チ２２をオンとしてギア１５を出力軸１８に接続する
（ステップ８）。すると、ギア１５に噛み合うギア１６
に一体化されているトルクリミッタ１７が負荷として働
くので、底板３の再上昇速度は底板３の初期上昇速度よ
り遅くなり、低速度で再上昇し、底板位置検出センサ２
１による底板３の検知によって停止する（ステップ１
１、１２）から、底板３の慣性力は小さくなり、位置の
狂いが先の実施形態と同様に小さくなる。なお、この実
施形態においては、再上昇速度はトルクリミッタ１３を
変更することにより容易により広い範囲で変更可能であ
る。Next, the operation of the second embodiment will be described. FIG. 5 is a flow chart showing the operation of the bottom plate lifting device of the paper feeding device of the second embodiment of the present invention. The operation from the mounting of the paper feed tray 1 (step 1) to the standby after the reverse rotation of the lifting motor 13 (step 7) is the same as the operation shown in the flowchart of FIG. 3 showing the operation of the first embodiment. The description is omitted. After allowing the lifting motor 13 to stand by for several seconds, the lifting motor 13 is normally rotated again to move the bottom plate 2
Before re-raising (steps 9 and 10), the electromagnetic clutch 22 is turned on and the gear 15 is connected to the output shaft 18 (step 8). Then, the gear 16 that meshes with the gear 15
Since the torque limiter 17 integrated with the bottom plate 3 acts as a load, the re-raising speed of the bottom plate 3 becomes slower than the initial rising speed of the bottom plate 3 and re-raises at a low speed.
Stops when the bottom plate 3 is detected by step 1 (step 1
1, 12), the inertial force of the bottom plate 3 becomes small, and the positional deviation becomes small as in the previous embodiment. In this embodiment, the re-raising speed can be easily changed in a wider range by changing the torque limiter 13.
【００１９】[0019]
【発明の効果】請求項１に係る給紙装置の底板昇降装置
によれば、再上昇時の昇降モータの入力印加電圧を低下
させるので、底板の再上昇速度を底板の初期上昇速度よ
り遅くすることができ、底板の慣性力を小さくして停止
位置の狂いも小さくすることができるようになるという
効果がある。According to the bottom plate elevating device of the sheet feeding device of the first aspect, the input applied voltage of the elevating motor is lowered at the time of re-elevation, so that the re-elevation speed of the bottom plate is made slower than the initial elevation speed of the bottom plate. Therefore, it is possible to reduce the inertial force of the bottom plate and reduce the deviation of the stop position.
【００２０】請求項２に係る給紙装置の底板昇降装置に
よれば、昇降モータの出力軸上の電磁クラッチと、この
電磁クラッチのギアに連動するトルクリミッタを設けて
いるので、底板の再上昇時にクラッチをオンとして負荷
を大きくすることにより、底板の再上昇速度を底板の初
期上昇速度より遅くすることができ、底板の慣性力を小
さくして停止位置の狂いも小さくすることができるよう
になるという効果がある。According to the bottom plate lifting device of the sheet feeding device of the second aspect, since the electromagnetic clutch on the output shaft of the lifting motor and the torque limiter interlocked with the gear of this electromagnetic clutch are provided, the bottom plate is lifted again. By increasing the load by sometimes turning on the clutch, the re-raising speed of the bottom plate can be made slower than the initial rising speed of the bottom plate, and the inertial force of the bottom plate can be reduced to reduce the deviation of the stop position. There is an effect that.
【図１】本発明に係る給紙装置の底板昇降装置の第１実
施形態の断面図である。FIG. 1 is a cross-sectional view of a first embodiment of a bottom plate elevating device for a sheet feeding device according to the present invention.
【図２】同要部の斜視図である。FIG. 2 is a perspective view of the main part.
【図３】図１、２に示す実施形態の動作を示すフローチ
ャート図である。FIG. 3 is a flowchart showing the operation of the embodiment shown in FIGS.
【図４】本発明の第２の実施形態の給紙装置の底板昇降
装置の要部の斜視図である。FIG. 4 is a perspective view of a main part of a bottom plate lifting device of a sheet feeding device according to a second embodiment of the present invention.
【図５】図４に示す実施形態の動作を示すフローチャー
ト図である。FIG. 5 is a flowchart showing the operation of the embodiment shown in FIG.
１ 給紙トレイ ２ 支点 ３ 底板 ４ 用紙 ５ 昇降部材 ６ 軸 ７ 偏心回転片 ８ 係合突起 ９ カップリング １０ 平歯車 １１ ホイール・ギア １２ ウォーム・ギア １３ 昇降モータ １４ 駆動部 １５、１６ ギア １７ トルクリミッタ １８ 出力軸 １９、２０ 摺動レール ２１ 底板位置検出センサ ２２ 電磁クラッチ 1 Paper Feed Tray 2 Support Point 3 Bottom Plate 4 Paper 5 Elevating Member 6 Shaft 7 Eccentric Rotating Piece 8 Engaging Protrusion 9 Coupling 10 Spur Gear 11 Wheel Gear 12 Worm Gear 13 Elevating Motor 14 Drive Unit 15, 16 Gear 17 Torque Limiter 18 Output Shaft 19, 20 Sliding Rail 21 Bottom Plate Position Detection Sensor 22 Electromagnetic Clutch
Claims (2)
を画像形成装置本体に着脱自在に取り付け、上記底板の
昇降部材と、上記昇降部材を駆動する昇降モータと、給
紙可能な状態の上記底板の位置を検出する底板位置検出
手段と、上記底板を上昇させて底板位置を検知した後、
一旦上記底板を下降させ、ついで再上昇させる制御部と
を有する給紙装置の底板昇降装置において、上記底板の
再上昇時に上記昇降モータへの入力印加電圧を低下させ
ることを特徴とする給紙装置の底板昇降装置。1. A paper feed tray having a bottom plate on which a sheet is placed is detachably attached to an image forming apparatus main body, and an elevating member for the bottom plate, an elevating motor for driving the elevating member, and a feedable state. Bottom plate position detecting means for detecting the position of the bottom plate, and after detecting the bottom plate position by raising the bottom plate,
A bottom plate elevating device for a sheet feeding device having a control unit for lowering the bottom plate and then raising it again, characterized in that the input applied voltage to the elevating motor is lowered when the bottom plate is raised again. Bottom plate lifting device.
を画像形成装置本体に着脱自在に取り付け、上記底板の
昇降部材と、上記昇降部材を駆動する昇降モータと、給
紙可能な状態の上記底板の位置を検出する底板位置検出
手段と、上記底板を上昇させて底板位置を検知した後、
一旦上記底板を下降させ、ついで再上昇させる制御部と
を有する給紙装置の底板昇降装置において、上記昇降モ
ータの出力軸上に電磁クラッチと該電磁クラッチのギア
に連動するトルクリミッタとを設けたことを特徴とする
給紙装置の底板昇降装置。2. A paper feed tray having a bottom plate on which a sheet is placed is detachably attached to the main body of the image forming apparatus, an elevating member for the bottom plate, an elevating motor for driving the elevating member, and a paper feedable state. Bottom plate position detecting means for detecting the position of the bottom plate, and after detecting the bottom plate position by raising the bottom plate,
In a bottom plate lifting device of a sheet feeding device having a control unit for lowering the bottom plate once and then raising it again, an electromagnetic clutch and a torque limiter interlocking with a gear of the electromagnetic clutch are provided on an output shaft of the lifting motor. A bottom plate lifting device for a sheet feeding device, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7269218A JPH0986680A (en) | 1995-09-22 | 1995-09-22 | Bottom plate lift device for paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7269218A JPH0986680A (en) | 1995-09-22 | 1995-09-22 | Bottom plate lift device for paper feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0986680A true JPH0986680A (en) | 1997-03-31 |
Family
ID=17469320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7269218A Pending JPH0986680A (en) | 1995-09-22 | 1995-09-22 | Bottom plate lift device for paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0986680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7357388B2 (en) | 2004-03-31 | 2008-04-15 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus with recording medium support member adjustable in position for desired position of uppermost recording medium on support member |
| US7503558B2 (en) | 2005-05-31 | 2009-03-17 | Ricoh Company, Ltd. | Sheet elevation apparatus and image forming apparatus using the same |
-
1995
- 1995-09-22 JP JP7269218A patent/JPH0986680A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7357388B2 (en) | 2004-03-31 | 2008-04-15 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus with recording medium support member adjustable in position for desired position of uppermost recording medium on support member |
| US7441768B2 (en) | 2004-03-31 | 2008-10-28 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus with recording medium support member adjustable in position for desired position of uppermost recording medium on support member |
| US7503558B2 (en) | 2005-05-31 | 2009-03-17 | Ricoh Company, Ltd. | Sheet elevation apparatus and image forming apparatus using the same |
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