JPH0412036Y2 - - Google Patents
Info
- Publication number
- JPH0412036Y2 JPH0412036Y2 JP19618885U JP19618885U JPH0412036Y2 JP H0412036 Y2 JPH0412036 Y2 JP H0412036Y2 JP 19618885 U JP19618885 U JP 19618885U JP 19618885 U JP19618885 U JP 19618885U JP H0412036 Y2 JPH0412036 Y2 JP H0412036Y2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- feeding
- feeding device
- initial contact
- contacts
- 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.)
- Expired
Links
- 230000007423 decrease Effects 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims 4
- 239000011800 void material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 23
- 210000000078 claw Anatomy 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 241001272720 Medialuna californiensis Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Description
【考案の詳細な説明】
〔考案の技術分野〕
本考案は、複写機或いは、プリンタ等の給送装
置に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a feeding device such as a copying machine or a printer.
従来の給送装置の一例として、第７図に示すよ
うな構成のものが知られていた。
As an example of a conventional feeding device, one having a configuration as shown in FIG. 7 has been known.
以下、添付図面に従つて、従来例について説明
する。同図において、給送コロ１の円周の一部
は、切り欠かれて、いわゆる半月状になつてい
る。載置板２上に載置された用紙３はバネ４の復
元力により押し上げられ分離爪５により上方への
動きを規制されている。用紙給送用の給送コロ１
は、非給送時には半月状断面の平坦面１ａを下に
向けて停止しており、給送時には当該給送コロ１
に固定した軸６の図における時計方向への回転に
よつて用紙３を給送する。給送コロ１は回転して
平坦面１ａと円周面１ｂとの交差部Ｄが用紙３の
最上部に接触すると、当該用紙３を押し下げると
同時に給送を開始し、１回転により待機ロール７
に用紙３を給送し当接させる。そして用紙３の給
送中は、バネ４の押し上げる力により給送コロ１
と用紙３との間の摩擦力を大きくして確実に用紙
３を給送するようにしてある。この場合、交差部
Ｄが用紙３の最上部に接触した時点において、バ
ネ４に抗して用紙３を押し下げる力および給送コ
ロ１と用紙３との摩擦力とが同時に急に軸６へ掛
かるので、第５図にD1で示すように軸６の負荷
トルクが急激に増大する。このために軸６と共通
の同一のモータが駆動している給紙系、転写系お
よび印字系等の図示しない他の部材に瞬間的に回
転変動が生じて、露光時における画像振れ、転写
位置における転写振れ、用紙３と図示しない像担
持体上の画像との先端ずれなどが発生するという
問題点があつた。特にPPC（Plane Paper Copy）
方式プリンタであつて微小ドツトで光記録を行う
ものの場合には上記画像振れ、転写振れおよび先
端ずれ等が大きな問題点となる。 A conventional example will be described below with reference to the accompanying drawings. In the figure, a part of the circumference of the feeding roller 1 is cut out to form a so-called half-moon shape. The paper 3 placed on the placement plate 2 is pushed up by the restoring force of the spring 4, and its upward movement is restricted by the separation claw 5. Feed roller 1 for paper feeding
When the roller is not feeding, it is stopped with the flat surface 1a of the half-moon cross section facing downward, and when feeding, the feeding roller 1 is
The paper 3 is fed by rotation of the shaft 6 fixed to the clockwise direction in the drawing. When the feeding roller 1 rotates and the intersection D between the flat surface 1a and the circumferential surface 1b comes into contact with the top of the paper 3, it pushes down the paper 3 and starts feeding at the same time.
Paper 3 is fed and brought into contact with the paper 3. While the paper 3 is being fed, the feeding roller 1 is pushed up by the spring 4.
The frictional force between the paper 3 and the paper 3 is increased to reliably feed the paper 3. In this case, when the intersection D contacts the top of the paper 3, the force pushing down the paper 3 against the spring 4 and the frictional force between the feeding roller 1 and the paper 3 are suddenly applied to the shaft 6 at the same time. Therefore, as shown by D1 in FIG. 5, the load torque on the shaft 6 increases rapidly. For this reason, other members (not shown) such as the paper feeding system, transfer system, and printing system that are driven by the same motor that is common to the shaft 6 may undergo instantaneous rotational fluctuations, resulting in image shake during exposure and transfer position. There have been problems such as transfer shake in the image forming apparatus and misalignment of the leading edge between the paper 3 and the image on the image carrier (not shown). Especially PPC (Plane Paper Copy)
In the case of a system printer that performs optical recording using minute dots, the above-mentioned image shake, transfer shake, and tip shift become major problems.
本考案は、上記従来の欠点に鑑み、給送コロ自
体の摩擦力および弾性力を変化させ給送コロの軸
に急激に大きな負荷トルクが掛かつて駆動源を共
通とする給送系、転写系、印字系等の他の部材に
回転変動が生ずることがなく、画像振れ、転写振
れ等を確実に防止することができる用紙給送装置
を提供することを目的とする。
In view of the above-mentioned conventional drawbacks, the present invention has been developed to change the frictional force and elastic force of the feeding roller itself so that a sudden large load torque is applied to the shaft of the feeding roller. It is an object of the present invention to provide a paper feeding device that does not cause rotational fluctuations in other members such as a printing system, and can reliably prevent image shake, transfer shake, etc.
本考案は上記目的を達成するために、弾性部材
により押し上げられ、用紙を載置する用紙載置板
と、円周の一部に切り欠き部を形成した断面を有
し、非給送時は前記切り欠き部が前記用紙と対峙
して所定間隔を保ち、給送時は回転により円周部
が前記用紙に接触して用紙を給送する給送コロと
を有する用紙給送装置において、前記給送コロは
回転開始時前記円周部が最初に用紙に当接する初
期接触点から反回転方向側の所定長に亘る外周面
に初期当接部を有し、該初期当接部は用紙に圧接
されて変形するたわみ量が前記反回転方向に向つ
て順次減少することを特徴とする。
In order to achieve the above object, the present invention has a paper placement plate that is pushed up by an elastic member and on which the paper is placed, and a cross section with a notch formed in a part of the circumference. In the paper feeding device, the paper feeding device includes a feeding roller in which the cutout portion faces the paper and maintains a predetermined interval, and a circumferential portion contacts the paper during feeding to feed the paper. The feeding roller has an initial contact portion on its outer peripheral surface over a predetermined length on the counter-rotation direction from the initial contact point where the circumferential portion first contacts the paper at the start of rotation, and the initial contact portion contacts the paper. It is characterized in that the amount of deflection caused by the pressure contact and deformation gradually decreases in the counter-rotation direction.
以下本考案の一実施例を図面を参照しながら詳
述する。
An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図は、本考案に係わる用紙給送装置の一例
を示す縦断面図である。 FIG. 1 is a longitudinal sectional view showing an example of a paper feeding device according to the present invention.
ケース８は上部が開口しており、用紙を載置す
る用紙載置板９と当該用紙載置板９の下方のコイ
ル状のバネ１１と上部の分離爪１２とを収納して
ある。 The case 8 is open at the top and accommodates a paper placement plate 9 on which sheets are placed, a coiled spring 11 below the paper placement plate 9, and a separating claw 12 at the top.
用紙載置板９は用紙１０に適合した大きさで、
下面の一端がケース８の底面８ａに当接し、他端
が、下方のバネ１１で支持してあり、一端から他
端へ傾斜した状態でケース８内に収めてある。 The paper placement plate 9 is sized to fit the paper 10.
One end of the lower surface is in contact with the bottom surface 8a of the case 8, and the other end is supported by a lower spring 11, and is housed in the case 8 in an inclined state from one end to the other end.
バネ１１は圧縮した状態でケース８の底面８ａ
と用紙載置板９の下面９ａとの間に設けてあり、
用紙載置板９を常時上方へ押し上げるように付勢
している。 When the spring 11 is compressed, the bottom surface 8a of the case 8
and the lower surface 9a of the paper placement plate 9,
The paper loading plate 9 is constantly urged upward.
分離爪１２はバネ１１の上方の用紙載置板９に
載置された用紙１０の隅角部に当接し、用紙１０
の上方への動きを規制し、用紙１０を１枚毎に確
実に分離して給送するためのものである。 The separation claw 12 comes into contact with a corner of the paper 10 placed on the paper placement plate 9 above the spring 11, and separates the paper 10.
This is to restrict the upward movement of the paper 10 and reliably separate and feed the paper 10 one by one.
給送コロ１３は切欠き部が平坦面１３ａを成
し、当該切欠き部が非給送時に用紙１０と所定間
隔を保持しており、半月状の断面形状を有する芯
金１４と当該芯金１４の円周面１４ａを覆つて固
着した給送材１５と芯金１４に固定した軸１６と
で構成してあり、図において時計方向に回転す
る。給送材１５は摩擦係数が高い例えば1.2程度
のゴム等から成つている。軸１６は図示しないプ
リンタ本体の側部に軸支してあり、図外の駆動機
構に連結されている。 The feeding roller 13 has a cutout portion forming a flat surface 13a, and the cutout portion maintains a predetermined distance from the paper 10 when not feeding, and a core metal 14 having a half-moon cross section and the core metal. 14, and a shaft 16 fixed to the core metal 14, which rotates clockwise in the figure. The feed material 15 is made of a material having a high coefficient of friction, for example, rubber or the like of about 1.2. The shaft 16 is pivotally supported on the side of the printer main body (not shown), and is connected to a drive mechanism (not shown).
第２図は、給送コロ１３と用紙１０との関係を
示す断面図である。初期当接部としての給送材１
５のＥ部には、スリツトが切り込んであり、凸部
の厚みｔとスリツトの深さｌは、用紙に対する初
期接触点から遠ざかるに従つて変化するよう構成
されている。 FIG. 2 is a sectional view showing the relationship between the feeding roller 13 and the paper 10. Feed material 1 as initial contact part
A slit is cut into the E portion of the paper sheet 5, and the thickness t of the convex portion and the depth l of the slit change as the distance from the initial contact point with the paper increases.
ここで、初期接触点におけるスリツトの深さを
l1、最後のスリツトの深さをl2とするとl1＞l2なる
関係が成り立つ。また、初期接触点における凸部
の厚さをt1、凸部の最後の厚さをt2とするとt1＜
t2なる関係が成り立つ。 Here, the depth of the slit at the initial contact point is
When l 1 and the depth of the last slit are l 2 , the relationship l 1 > l 2 holds true. Furthermore, if the thickness of the convex portion at the initial contact point is t 1 and the final thickness of the convex portion is t 2 , then t 1 <
The relationship t2 holds true.
更に、給送材１５の形状係数とたわみ量（％）
との関係は、給送材１５の幅をｗとすると形状係
数ｋ＝tw／2l（ｔ＋ｗ）で表される。 Furthermore, the shape factor and deflection amount (%) of the feed material 15
The relationship is expressed by the shape factor k=tw/2l(t+w), where w is the width of the feed material 15.
従つて、形状係数ｋが小さい程たわみ量（％）
が大きくなる。つまり、同一のゴム硬度の材料を
用いれば形状係数ｋが小さい程、変形しやすくな
る。そこで本考案の給送コロ１３の給送材１５の
形状では、用紙１０への初期接触点から次第に形
状係数が大きくなるように構成されているので、
たわみ量は順次小さくなつてゆく。 Therefore, the smaller the shape factor k, the more the amount of deflection (%)
becomes larger. In other words, if materials with the same rubber hardness are used, the smaller the shape factor k, the easier the material will deform. Therefore, the shape of the feeding material 15 of the feeding roller 13 of the present invention is configured such that the shape factor gradually increases from the initial contact point with the paper 10.
The amount of deflection gradually decreases.
待機ロール１８は、上下一対からなり給送コロ
１３が一回転して給送してくる用紙１０の先端を
受け止めて、タイミングを合わせて図示しない転
写部へ用紙を搬送するものである。 The standby rolls 18 consist of a pair of upper and lower rollers, and receive the leading edge of the paper 10 fed by the feeding roller 13 in one rotation, and transport the paper to a transfer section (not shown) at the same timing.
次に、第２図、第３図に従つて上記構成の給送
装置の動作について説明する。 Next, the operation of the feeding device having the above structure will be explained with reference to FIGS. 2 and 3.
非給送時に、給送コロ１３は、平坦面１３ａを
下にして停止しており用紙１０から所定の距離を
有している。図外の制御系からの給送開始信号に
より図外の駆動機構に接続した軸１６が矢印（時
計）方向に回転を開始する。軸１６が所定角度回
転すると軸１６に固定された給送材１５のA1点
が用紙１０に接触する（第３図参照）。 When not feeding, the feeding roller 13 is stopped with the flat surface 13a facing down and is at a predetermined distance from the paper 10. A shaft 16 connected to a drive mechanism (not shown) starts rotating in the direction of an arrow (clockwise) in response to a feeding start signal from a control system (not shown). When the shaft 16 rotates by a predetermined angle, point A of the feed material 15 fixed to the shaft 16 comes into contact with the paper 10 (see FIG. 3).
初期接触点であるA1点において給送材１５の
形状係数は小さい為に、たわみ量は大きい。 Since the shape factor of the feed material 15 is small at point A , which is the initial contact point, the amount of deflection is large.
軸１６が更に回転すると、それに固定された給
送材１５も回動し、形状係数は徐々に増大する。 When the shaft 16 further rotates, the feed material 15 fixed thereto also rotates, and the shape factor gradually increases.
従つて、たわみ量（％）が小さくなるととも
に、用紙１０は、バネ付勢されている位置より
徐々に押し下げられ、給紙圧力（給送材１５と最
上位置の用紙との接触圧）が250〜300gに達した
時に給送動作が行われる。 Therefore, as the amount of deflection (%) decreases, the paper 10 is gradually pushed down from the spring-biased position, and the paper feeding pressure (the contact pressure between the feeding material 15 and the paper at the uppermost position) increases to 250 A feeding operation is performed when ~300g is reached.
ここで限界摩擦力Fspと給紙圧力Ｎと摩擦係数
μとの関係は、Fsp＝Nμなる関係が成り立ち、形
状係数ｋが徐々に変化して給紙圧力Ｎが徐々に高
くなり限界摩擦力Fspを越えた時に用紙１０が給
送される。 Here, the relationship between the limit frictional force F sp , the paper feed pressure N, and the friction coefficient μ is as follows: F sp = Nμ, and as the shape factor k gradually changes and the paper feed pressure N gradually increases, the limit friction The paper 10 is fed when the force F sp is exceeded.
Fsp＞Nμの場合は、用紙１０と給送材１５とは
スリツプ状態にある。従つて、初期接触点A1点
では、Fsp＞Nμであり、B1点に至る途中でFsp＜
Nμなる関係が成立するように給送材１５の形状
係数を設定する。 When F sp >Nμ, the paper 10 and the feed material 15 are in a slip state. Therefore, at one initial contact point A, F sp > Nμ, and on the way to one point B, F sp <
The shape factor of the feed material 15 is set so that the relationship Nμ holds true.
第４図は本考案の給送装置における軸１６にか
かる負荷トルクの変化を示すグラフである。縦軸
に負荷トルク、横軸に時間をとり０は軸１６の回
転開始時、A1は給送材１５と用紙１０との接触
時、B1は用紙給送開始時をそれぞれ示し、軸１
６の負荷トルクはA1からB1に至る間で徐々に増
大していく。 FIG. 4 is a graph showing changes in the load torque applied to the shaft 16 in the feeding device of the present invention. The vertical axis shows the load torque, and the horizontal axis shows time. 0 shows the time when the rotation of the shaft 16 starts, A 1 shows the time of contact between the feeding material 15 and the paper 10, and B 1 shows the time when paper feeding starts.
The load torque of No. 6 gradually increases from A 1 to B 1 .
本考案の上記実施例によれば、用紙１０への給
送材１５の給送圧力Ｎと摩擦係数μが順次増大す
るので軸１６に掛かる負荷トルクは用紙１０への
当接開始時から給送終了に至るまで急激に変化す
ることがない。 According to the above-described embodiment of the present invention, since the feeding pressure N and the friction coefficient μ of the material 15 to be fed to the paper 10 increase sequentially, the load torque applied to the shaft 16 is increased from the time when the material 15 starts contacting the paper 10. There is no sudden change until the end.
第６図は、本考案の他の実施例を示す給送コロ
の断面図である。同図において、軸１６に固定さ
れた芯金１４′は、給送材１５との間の一部に空
〓１７が生ずるように左右非対称に形成されてい
る。これに対して給送材１５′は左右対称に形成
されている。ケース８内に積層された用紙１０
は、第一の実施例と同様に図外のコイル状のバネ
１１によつて上方に向かつて付勢されている。 FIG. 6 is a sectional view of a feeding roller showing another embodiment of the present invention. In the figure, a core metal 14' fixed to a shaft 16 is formed asymmetrically so that a gap 17 is formed in a part between it and the feed material 15. On the other hand, the feed material 15' is formed symmetrically. Paper 10 stacked inside case 8
is urged upward by a coiled spring 11 (not shown) as in the first embodiment.
以上のような構成の給送装置において空〓１７
を形成したことにより、用紙１０への給送コロの
当接力が、当初は、ソフトであり順次強く変化す
る。 In the feeding device configured as above, the empty
As a result, the contact force of the feeding rollers against the paper 10 is initially soft and gradually changes to a stronger force.
従つて、このような構成とした場合であつて
も、給送コロ軸へ急激な負荷トルクの変動が生じ
るのを防止することができる。 Therefore, even with such a configuration, it is possible to prevent sudden fluctuations in load torque from occurring on the feeding roller shaft.
また、給送材１５′に凹凸等の加工を施す必要
もないので安価に製造することができる。 Further, since there is no need to process the feed material 15' to make it uneven, etc., it can be manufactured at low cost.
以上詳細に説明したように本考案の給送装置に
よれば、給送コロのたわみ量が回転角に応じて順
次減少するため、給送コロの軸に急激に大きな負
荷トルクが掛かつて駆動源を共通とする転写系そ
の他の部材に回転変動を生ずることがなくなり、
画像振れ、転写振れ等を確実に防止することがで
きる。
As explained in detail above, according to the feeding device of the present invention, since the amount of deflection of the feeding roller decreases sequentially according to the rotation angle, if a large load torque is suddenly applied to the shaft of the feeding roller, the driving source This eliminates rotational fluctuations in the transfer system and other parts that are common to
Image shake, transfer shake, etc. can be reliably prevented.
また、給送コロは単一材料をもつて表面が形成
されているので用紙に対する接触圧を徐々に変化
させることができるとともに複数の材料を用いた
時のように材料の境界面で摩擦力が急変すること
もない。 In addition, since the surface of the feeding roller is made of a single material, it is possible to gradually change the contact pressure against the paper, and when using multiple materials, the frictional force at the interface between the materials can be reduced. There is no sudden change.
更に、部品点数を増加する必要もなく、簡易な
構成であるのでコストダウンを図ることができ
る。 Furthermore, there is no need to increase the number of parts, and since the structure is simple, costs can be reduced.
第１図は本考案に係わる用紙給送装置の一例を
示す縦断面図、第２図は給送コロと用紙との関係
を示す断面図、第３図は給送コロと用紙との関係
を示す断面図、第４図は給送コロ等の軸に掛かる
負荷トルクの変化を示すグラフ、第５図は従来の
給送コロ軸に掛かる負荷トルクの変化を示すグラ
フ、第６図は他の実施例を示す給送コロの断面
図、第７図は従来の用紙給送装置を示す縦断面図
である。
１……給送コロ、２……載置板、３……用紙、
４……バネ、５……分離爪、６……軸、７……待
機ロール、８……ケース、８ａ……底面、９……
用紙載置板、９ａ……下面、１０……用紙、１１
……バネ、１２……分離爪、１３，１３′……給
送コロ、１３ａ……平坦面、１４，１４′……芯
金、１４ａ……円周面、１５，１５′……給送材、
１６……軸、１７……空〓。
Fig. 1 is a longitudinal sectional view showing an example of a paper feeding device according to the present invention, Fig. 2 is a sectional view showing the relationship between the feeding rollers and paper, and Fig. 3 is a sectional view showing the relationship between the feeding rollers and paper. 4 is a graph showing changes in the load torque applied to the shaft of the feed roller, etc., FIG. 5 is a graph showing changes in the load torque applied to the conventional feed roller shaft, and FIG. A sectional view of a feeding roller showing an embodiment, and FIG. 7 is a vertical sectional view showing a conventional paper feeding device. 1... Feeding roller, 2... Placement plate, 3... Paper,
4... Spring, 5... Separation claw, 6... Shaft, 7... Standby roll, 8... Case, 8a... Bottom, 9...
Paper placement plate, 9a...Bottom surface, 10...Paper, 11
... Spring, 12 ... Separation claw, 13, 13' ... Feeding roller, 13a ... Flat surface, 14, 14' ... Core metal, 14a ... Circumferential surface, 15, 15' ... Feeding wood,
16...Axis, 17...Empty.
Claims (1)
る用紙載置板と、円周の一部に切り欠き部を形
成した断面を有し、非給送時は前記切り欠き部
が前記用紙と対峙して所定間隔を保ち、給送時
は回転により円周部が前記用紙に接触して用紙
を給送する給送コロとを有する用紙給送装置に
おいて、前記給送コロは、回転開始時前記円周
部が最初に用紙に当接する初期接触点から反回
転方向側の所定長に亘る外周面に初期当接部を
有し、該初期当接部は用紙に圧接されて変形す
るたわみ量が前記反回転方向に向つて順次減少
することを特徴とする給送装置。 (2) 前記初期当接部は、前記円周部の表面層に形
成された複数の凹凸部から成り、該凹凸部の凹
部の深さが前記反回転方向に向つて順次変化す
ることを特徴とする実用新案登録請求の範囲第
１項記載の給送装置。 (3) 前記初期当接部は、前記円周部の表面層に形
成された複数の凹凸部から成り、該凹凸部の凸
部の幅が前記反回転方向に向つて順次変化する
ことを特徴とする実用新案登録請求の範囲第１
項記載の給送装置。 (4) 前記初期当接部は、用紙に接触する表面層
と、該表面層内部に形成される空〓より成るこ
とを特徴とする実用新案登録請求の範囲第１項
記載の給送装置。[Claims for Utility Model Registration] (1) A paper mounting plate that is pushed up by an elastic member and on which paper is placed, and a cross section with a notch formed in part of the circumference, and when not being fed. In the paper feeding device, the paper feeding device includes a feeding roller in which the cutout portion faces the paper and maintains a predetermined interval, and a circumferential portion contacts the paper during feeding to feed the paper. The feeding roller has an initial contact portion on its outer circumferential surface extending over a predetermined length on the opposite rotational direction from the initial contact point where the circumferential portion first contacts the paper at the start of rotation, and the initial contact portion contacts the paper. A feeding device characterized in that the amount of deflection deformed by being pressed into contact with the device gradually decreases in the counter-rotation direction. (2) The initial contact portion is comprised of a plurality of uneven portions formed on the surface layer of the circumferential portion, and the depth of the recessed portions of the uneven portions sequentially changes in the counter-rotation direction. A feeding device according to claim 1 of the utility model registration claim. (3) The initial contact portion is comprised of a plurality of uneven portions formed on the surface layer of the circumferential portion, and the width of the convex portions of the uneven portions sequentially changes in the counter-rotation direction. Scope of claim for utility model registration No. 1
Feeding device as described in section. (4) The feeding device according to claim 1, wherein the initial contact portion comprises a surface layer that contacts the paper and a void formed inside the surface layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19618885U JPH0412036Y2 (en) | 1985-12-19 | 1985-12-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19618885U JPH0412036Y2 (en) | 1985-12-19 | 1985-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62103548U JPS62103548U (en) | 1987-07-01 |
| JPH0412036Y2 true JPH0412036Y2 (en) | 1992-03-25 |
Family
ID=31154779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19618885U Expired JPH0412036Y2 (en) | 1985-12-19 | 1985-12-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412036Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101428480B1 (en) * | 2007-07-04 | 2014-08-11 | 삼성전자 주식회사 | Image forming apparatus |
-
1985
- 1985-12-19 JP JP19618885U patent/JPH0412036Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62103548U (en) | 1987-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5942867B2 (en) | Sheet feeding device | |
| JPH0745476Y2 (en) | Paper feed mechanism | |
| JP2680223B2 (en) | Friction separating roller type paper feeder | |
| US4084807A (en) | Paper feeding roller | |
| JPH0412036Y2 (en) | ||
| JPH0676148B2 (en) | Sheet material feeder | |
| JP2547978B2 (en) | Sheet material feeder | |
| JP2000007161A (en) | Sheet feed tray | |
| JP2601183B2 (en) | Paper transport device | |
| JPH0352743Y2 (en) | ||
| JP3382425B2 (en) | Sheet feeding device and image forming apparatus provided with the sheet feeding device | |
| JPS6052973B2 (en) | Sheet feeding device | |
| JP3416363B2 (en) | Sheet material loading tray and image forming apparatus | |
| JP2826917B2 (en) | Sheet feeding device | |
| JP2704031B2 (en) | Paper sheet take-out device | |
| JP2801438B2 (en) | Automatic paper feeder and recording device | |
| JP2801439B2 (en) | Automatic paper feeder and recording device | |
| JPH0546842U (en) | Paper feeder | |
| JPH0750346Y2 (en) | Paper feeder | |
| JPH05278885A (en) | Device and method for frictional separating paper sheet feeding | |
| JPS6337042A (en) | Sheet feeder for image former | |
| JPH0246494B2 (en) | SHOKYUSOSOCHI | |
| JP4067941B2 (en) | Sheet material feeding method, feeding device, and image forming apparatus including the same | |
| JP2548956Y2 (en) | Recording paper post-processing equipment | |
| JP2623574B2 (en) | Sheet material reversing device |