JPH0519603A - Laser scanning device - Google Patents
Laser scanning deviceInfo
- Publication number
- JPH0519603A JPH0519603A JP3176790A JP17679091A JPH0519603A JP H0519603 A JPH0519603 A JP H0519603A JP 3176790 A JP3176790 A JP 3176790A JP 17679091 A JP17679091 A JP 17679091A JP H0519603 A JPH0519603 A JP H0519603A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- closing cover
- opening
- laser
- optical box
- 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
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、レーザビームプリンタ
又は光読取り装置などのレーザ走査装置において、その
光路上に設けられた危険防止用のレーザビームのシヤツ
ター装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser beam scanning device such as a laser beam printer or an optical reading device which is provided on the optical path of a laser beam shutter device for preventing danger.
【０００２】[0002]
【従来の技術】従来、一般にレーザビームプリンタや光
読取り装置などは、作動中にレーザ光が外部に漏出しな
いように装置前面は、フロントドアに蓋閉される。しか
し操作上ペーパージヤム（紙詰まり）を除去する場合や
保守、点検の際などメインスイツチの入力中にドアを開
けることが多々ある。このような時は、マイクロスイツ
チなどのインターロツクスイツチによりドアが開かれた
際、人体に危険をおよぼす可能性のある高圧電源駆動
部、レーザなどの入力が電気的に切られるようになって
いる。2. Description of the Related Art Conventionally, in a laser beam printer or an optical reading device, the front surface of the device is closed by a front door so that the laser light does not leak outside during operation. However, the door is often opened while the main switch is being input, such as when removing paper jams (paper jams) for operation, maintenance, and inspection. In such a case, when the door is opened by an interlock switch such as a micro switch, the input of the high voltage power source drive unit, laser, etc., which may be dangerous to the human body, is electrically cut off. .
【０００３】しかしながら特にレーザの場合はフロント
ドアが開いても、インターロツクスイツチが誤動作して
レーザビームが生じた際、たとえ装置に触れていなくて
も、あるいは装置から離れていても目や皮膚に障害を及
ぼす危険があるという問題がある。また、保守点検時に
おいては、インターロツクスイツチを故意に働かないよ
うにしてドアを開けた状態で装置動作の点検を行なう場
合がある。このような場合にも有害なレーザビームや２
次的に生じた反射ビームなとが外部に漏れないようにし
なければならない。However, particularly in the case of a laser, even if the front door is opened, when the interlock switch malfunctions and a laser beam is generated, even if it is not touching the device or it is away from the device, it may contact the eyes and skin. There is a problem that there is a risk of injury. In addition, at the time of maintenance and inspection, the operation of the device may be inspected with the door open so that the interlock switch is not intentionally operated. In such a case, a harmful laser beam or 2
It is necessary to prevent externally generated reflected beams and the like from leaking to the outside.
【０００４】例えば、従来のレーザシヤツター機構を図
９、１０に示す。現像カートリツジを走査光学装置に組
み込むと、現像カートリツジの突起部５ａがアクチユエ
ータ部材の第１アーム６を付勢し、第２アーム７が回動
軸７ａを中心として回動し、アクチユエータ部材８のシ
ヤツターが移動して、レーザユニツトから射出される光
ビームＬの遮蔽を解除する。For example, a conventional laser shutter mechanism is shown in FIGS. When the developing cartridge is incorporated into the scanning optical device, the protrusion 5a of the developing cartridge urges the first arm 6 of the actuator member, and the second arm 7 rotates about the rotating shaft 7a, and the shutter of the actuator member 8 is rotated. Moves to release the blocking of the light beam L emitted from the laser unit.
【０００５】一方、現像カートリツジを走査光学装置か
ら引き抜くと、突起５ａが第１アームの付勢を解除し、
引っ張りバネが第２アーム７を付勢し、第２アーム７が
回動軸７ａを中心に回転してアクチユエータ部材のシヤ
ツターを移動させてレーザユニツトから射出される光ビ
ームＬを遮蔽する。On the other hand, when the developing cartridge is pulled out from the scanning optical device, the projection 5a releases the bias of the first arm,
The tension spring biases the second arm 7, and the second arm 7 rotates about the rotation shaft 7a to move the shutter of the actuator member and shield the light beam L emitted from the laser unit.
【０００６】また、実開昭６１−１７３９４８号公報に
は前扉に連動してレーザ光の光路内にシヤツターが出入
りする構成が記載されている。Further, Japanese Utility Model Laid-Open No. 61-173948 discloses a structure in which a shutter enters and leaves the optical path of laser light in conjunction with a front door.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら上記従来
例では現像カートリツジの出し入れ及び前扉の開閉に伴
なう力の作用方向を別の方向の力に一旦変換し、この力
をまた更に別の方向の力に変換してシヤツターを駆動す
るので、動力伝達部材が多数必要になりメカ構成が複雑
化し、動力が確実に伝わりにくいという問題点があっ
た。However, in the above-mentioned prior art example, the acting direction of the force associated with taking in and out of the developing cartridge and opening / closing of the front door is once converted into a force in another direction, and this force is applied in another direction. Since the shutter is driven by converting into the force of No. 3, there is a problem that a large number of power transmission members are required, the mechanical structure becomes complicated, and it is difficult to reliably transmit the power.
【０００８】[0008]
【課題を解決するための手段】本発明は上記問題点を解
決するものであり、レーザ光を出射するレーザ光源と、
このレーザ光源からのレーザ光を遮断するためのシヤツ
ター部と、装置本体に対して開閉自在に設けられた開閉
カバーと、を有するレーザ走査装置において、上記開閉
カバーは回転移動により開閉を行なうものであり、この
回転移動に直接連動して上記シヤツター部が回転移動す
ることを特徴とするものである。SUMMARY OF THE INVENTION The present invention is to solve the above problems and to provide a laser light source for emitting a laser beam,
In a laser scanning device having a shutter part for shutting off laser light from the laser light source and an opening / closing cover provided to be openable / closable with respect to the apparatus main body, the opening / closing cover is opened and closed by rotational movement. It is characterized in that the shutter portion is rotationally moved in direct association with this rotational movement.
【０００９】[0009]
【実施例】本発明の第１の実施例を図１〜３において説
明する。図３は、レーザビーム記録装置の外観斜視図で
ある。この図において１０２はトナー交換やペーパージ
ヤムを除去する際の本体開閉カバーである。また、図１
〜２においてはレーザシヤツター機構を内蔵したレーザ
ビーム記録装置１００の断面図を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 3 is an external perspective view of the laser beam recording apparatus. In this figure, reference numeral 102 designates a main body opening / closing cover at the time of toner replacement and paper jam removal. Also, FIG.
2 to 2 are sectional views of a laser beam recording apparatus 100 having a built-in laser shutter mechanism.
【００１０】開閉カバー１０２は回転軸１０５を中心に
回動可能で、この回転移動により装置の一部の開閉が行
なわれる。光学箱１０１は内部にレーザ光源、回転鏡等
を有し、光学箱１０１から変更操作されたレーザビーム
が出射される。１０８はこの光学箱１０１から出射する
レーザビームを遮断するためのシヤツター部であり、図
１において紙面に垂直に長く伸びており、回転軸１１０
を中心に回転移動可能になっている。The opening / closing cover 102 is rotatable about a rotary shaft 105, and this rotational movement opens / closes a part of the apparatus. The optical box 101 has a laser light source, a rotating mirror, etc. inside, and the laser beam which has been changed and operated is emitted from the optical box 101. Reference numeral 108 denotes a shutter portion for blocking the laser beam emitted from the optical box 101, which extends long in the direction perpendicular to the paper surface of FIG.
It is possible to rotate around.
【００１１】また本実施例では開閉カバー１０２の回転
軸１０５の軸方向とシヤツター部１０８の回転軸１１０
の軸方向とが略平行になっている。In this embodiment, the rotating shaft 105 of the opening / closing cover 102 and the rotating shaft 110 of the shutter portion 108 are in the axial direction.
Is substantially parallel to the axial direction of.
【００１２】図１は、本体開閉カバー１０２が閉じた状
態で、レーザビーム記録装置が動作している状態であ
る。この状態においては、光学箱１０１の端部に取り付
けられたシヤツター１０８は、本体開閉カバー１０２の
一部であるカム部１１１によって正規の位置に押えつけ
られているので、出射ビーム１０６は遮蔽されることが
ない。FIG. 1 shows a state in which the laser beam recording apparatus is operating with the main body opening / closing cover 102 closed. In this state, the shutter 108 attached to the end of the optical box 101 is pressed to a proper position by the cam portion 111 which is a part of the main body opening / closing cover 102, so that the outgoing beam 106 is shielded. Never.
【００１３】そして、図２は、ペーパージヤムやトナー
交換のためドラム（現像）カートリツジ１０３を交換す
る際に、本体開閉カバーを開いた状態である。この時
は、開閉カバー１０２に直接連動して開閉カバー１０２
の一部であるカム部１１１とシヤツター１０８の押圧が
解除されるので、シヤツター１０８をａ方向に押圧して
いるコイルバネ１０９の作用によって回転中心である回
転軸１１０を中心に光学箱１０１の付き当て部分に当る
ところまでシヤツターが回転する。この状態では、射出
ビーム１０６は遮蔽されて、光学箱１０１から出射され
ることはない。FIG. 2 shows a state in which the main body opening / closing cover is opened when the drum (developing) cartridge 103 is replaced for replacing paper jam or toner. At this time, the opening / closing cover 102 is directly linked to the opening / closing cover 102.
Since the pressing of the cam part 111 and the shutter 108, which is a part of the optical disk 101, is released, the abutment of the optical box 101 around the rotation shaft 110, which is the rotation center, by the action of the coil spring 109 that presses the shutter 108 in the a direction. The shutter rotates until it hits the part. In this state, the emission beam 106 is blocked and is not emitted from the optical box 101.
【００１４】このように本実施例では開閉カバー１０２
に直接連動してシヤツター１０８が回転移動してレーザ
光の光路内に出入りするので、開閉カバーの回転運動を
そのままシヤツターの運動に適用することができ、シヤ
ツター機構のメカ構成を簡略化することができる。Thus, in this embodiment, the opening / closing cover 102
Since the shutter 108 rotationally moves in and out of the optical path of the laser light in direct interlock with, the rotational movement of the opening / closing cover can be directly applied to the movement of the shutter, and the mechanical structure of the shutter mechanism can be simplified. it can.
【００１５】次に本発明の第２の実施例を図４に示す。
図４において、通常プリント動作時には、本体開閉カバ
ーであるカートリツジドア１２２ａは閉じられた状態で
あり、レーザシヤツター１２８ａも開状態にある。これ
は、カートリツジドア１２２ａの一部であるカムａ１２
１が光学箱１０１の両サイドに設けられた回転中心であ
る回転軸１２０を中心にレーザシヤツター１２８ａを押
し上げ、シヤツターを解放状態にしている。Next, a second embodiment of the present invention is shown in FIG.
In FIG. 4, during a normal printing operation, the cartridge door 122a, which is the main body opening / closing cover, is in a closed state, and the laser shutter 128a is also in an open state. This is a cam a12 that is part of the cartridge door 122a.
Reference numeral 1 pushes up the laser shutter 128a about a rotation shaft 120, which is a rotation center provided on both sides of the optical box 101, to release the shutter.
【００１６】また、カートリツジドア１２２を１５°程
度開いた状態が１２２ｂで示すカートリツジドアであ
る。ここでは、レーザシヤツター１２８は、光学箱１０
１の両サイドに設けられた回転中心１２０を中心にレー
ザシヤツター１２８の自重又はバネ等によって回転した
状態が１２８ｂで示すレーザシヤツターである。The cartridge door 122 is indicated by 122b when the cartridge door 122 is opened about 15 °. Here, the laser shutter 128 is the optical box 10.
The laser shutter 128b is a state in which the laser shutter 128 is rotated by its own weight or a spring or the like around the rotation center 120 provided on both sides of 1.
【００１７】さらにカートリツジドア１２２を９０°開
いた状態が１２２Ｃで示したカートリツジドアである。
ここでは、レーザシヤツター１２８は、光学箱１０１の
両側から出っ張っているストツパー１２９に当ってこれ
以上下方には回転しない構成となっている。Further, the state where the cartridge door 122 is opened 90 ° is the cartridge door 122C.
Here, the laser shutter 128 hits the stoppers 129 projecting from both sides of the optical box 101 and does not rotate further downward.
【００１８】このように本実施例ではカム１２１をカー
トリツジドア１２２の一部で構成したので部品点数を削
減して第１の実施例を同様の効果を得ることができる。As described above, in this embodiment, the cam 121 is formed by a part of the cartridge door 122, so that the number of parts can be reduced and the same effect as the first embodiment can be obtained.
【００１９】尚、本実施例においては、レーザシヤツタ
ー１２８の材質は、板金を想定し曲げ補強を入れている
が、樹脂であっても、レーザビーム１０６が透過しない
程度の厚みがあれば同様の効果は得られる。In the present embodiment, the material of the laser shutter 128 is assumed to be a metal plate and is bent and reinforced. However, even if the resin is a resin, the thickness is the same as long as the laser beam 106 is not transmitted. The effect of is obtained.
【００２０】次に本発明の第３の実施例について図５を
もとに説明する。Next, a third embodiment of the present invention will be described with reference to FIG.
【００２１】図５において、カートリツジドア１３２の
動きに連動するレーザシヤツター１３８の機構は第２の
実施例と同じであるが、レーザシヤツター１３８が閉じ
た状態であるレーザシヤツター１３８ｂにおいて、指で
レーザシヤツター１３８ｂを押し上げられるだけの空間
的な隙間がある場合でもレーザシヤツター１３８ｂはカ
ートリツジドア１３２ｃの一部であるカムｂに当たり、
それ以上上方へ回転させることができない。そのため、
レーザシヤツター１３８ｂに指が触れられたとしてもレ
ーザシヤツター１３８が開状態になることはない。In FIG. 5, the mechanism of the laser shutter 138 which is interlocked with the movement of the cartridge door 132 is the same as that of the second embodiment, but in the laser shutter 138b in which the laser shutter 138 is closed, Even if there is a spatial gap enough to push up the laser shutter 138b with a finger, the laser shutter 138b hits the cam b which is a part of the cartridge door 132c,
It cannot be rotated further upward. for that reason,
Even if a finger touches the laser shutter 138b, the laser shutter 138 will not be opened.
【００２２】尚、シヤツター１３８の回転中心は光学箱
１０１でなく、図６に示すように本体フレーム１４１に
取り付けられていてもレーザシヤツター動作機構として
は、同様であり、効果的にも同様のことがいえる。Even if the center of rotation of the shutter 138 is attached to the main body frame 141 as shown in FIG. 6 instead of the optical box 101, the laser shutter operation mechanism is the same and effectively the same. I can say that.
【００２３】次に本発明の第４の実施例について図６、
７をもとに説明する。Next, a fourth embodiment of the present invention will be described with reference to FIG.
It will be explained based on 7.
【００２４】図６、７に示す様に本実施例ではシヤツタ
ー部が開閉カバーと同一部材で構成されている。As shown in FIGS. 6 and 7, in this embodiment, the shutter portion is made of the same member as the opening / closing cover.
【００２５】図６は、本体開閉カバー１４２が閉じた状
態で、レーザビーム記録装置１００が通常動作してい
る。この状態においては、本体開閉カバーと同一部材に
なっているシヤツター部１４８は出射ビーム１０６を遮
蔽する事がない。これに対し図７に示すように、本体開
閉カバー１４２を回転中心１０５を中心に回転させて開
いた状態にすると、本体開閉カバー１４２のシヤツター
部１４８が出射ビーム１０６を遮蔽する状態になる。シ
ヤツター部１４８の回転の軌跡は、ｂｂ′方向の往復運
動である。In FIG. 6, the laser beam recording apparatus 100 normally operates with the main body opening / closing cover 142 closed. In this state, the shutter part 148, which is the same member as the main body opening / closing cover, does not block the outgoing beam 106. On the other hand, as shown in FIG. 7, when the main body opening / closing cover 142 is rotated around the rotation center 105 and opened, the shutter portion 148 of the main body opening / closing cover 142 blocks the outgoing beam 106. The locus of rotation of the shutter section 148 is a reciprocating motion in the bb 'direction.
【００２６】このように本実施例においては上記実施例
に比べ更に部品点数を削減することができ、動力の伝達
を確実なものとすることができる。As described above, in this embodiment, the number of parts can be further reduced as compared with the above-mentioned embodiment, and the power transmission can be ensured.
【００２７】[0027]
【発明の効果】以上、説明した様に本発明では開閉カバ
ーに連動して直接シヤツター部の回転移動を行なったの
で部品点数の削減を行なうことができ、シヤツター移動
のための動力の伝達を確実なものとすることができる。As described above, according to the present invention, since the shutter portion is directly rotationally moved in conjunction with the opening / closing cover, the number of parts can be reduced and the power transmission for the movement of the shutter can be surely performed. It can be anything.
【図１】本発明の第１の実施例で開閉カバーを閉じた図
である。FIG. 1 is a view in which an opening / closing cover is closed according to a first embodiment of the present invention.
【図２】本発明の第１の実施例で開閉カバーを開いた図
である。FIG. 2 is a diagram in which the opening / closing cover is opened in the first embodiment of the present invention.
【図３】本発明を適用可能なレーザ記録装置の斜視図で
ある。FIG. 3 is a perspective view of a laser recording apparatus to which the present invention can be applied.
【図４】本発明の第２の実施例を説明するための図であ
る。FIG. 4 is a diagram for explaining a second embodiment of the present invention.
【図５】本発明の第３の実施例を説明するための図であ
る。FIG. 5 is a diagram for explaining a third embodiment of the present invention.
【図６】本発明の第３の実施例の変形例を説明するため
の図である。FIG. 6 is a diagram for explaining a modification of the third embodiment of the present invention.
【図７】本発明の第４の実施例を説明するための図であ
る。FIG. 7 is a diagram for explaining the fourth embodiment of the present invention.
【図８】本発明の第４の実施例で開閉カバーの動作を説
明するための図である。FIG. 8 is a view for explaining the operation of the opening / closing cover in the fourth embodiment of the present invention.
【図９】従来のシヤツター機構を説明するための図であ
る。FIG. 9 is a diagram for explaining a conventional shutter mechanism.
【図１０】図９の装置のシヤツター部の拡大図である。FIG. 10 is an enlarged view of a shutter portion of the apparatus shown in FIG.
１０１ 光学箱 １０２ 開閉カバー １０５ 回転軸 １０６ レーザビーム １０８ シヤツター １１０ 回転軸 101 Optical box 102 Open / close cover 105 rotation axis 106 laser beam 108 Shatter 110 rotation axis
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０３Ｇ 15/04 １２０ 9122−2Ｈ Ｈ０４Ｎ 1/04 １０４ Ｚ 7251−5Ｃ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location G03G 15/04 120 9122-2H H04N 1/04 104 Z 7251-5C
Claims (2)
レーザ光源からのレーザ光を遮断するためのシヤツター
部と、装置本体に対して開閉自在に設けられた開閉カバ
ーと、を有するレーザ走査装置において、 上記開閉カバーは回転移動により開閉を行なうものであ
り、この回転移動に直接連動して上記シヤツター部が回
転移動することを特徴とするレーザ走査装置。1. A laser scanning device having a laser light source for emitting a laser beam, a shutter section for blocking the laser beam from the laser light source, and an opening / closing cover provided to be openable / closable with respect to the apparatus main body. In the laser scanning device, the opening / closing cover is opened and closed by rotational movement, and the shutter portion is rotationally moved directly in association with the rotational movement.
一部材であることを特徴とする請求項１のレーザ走査装
置。2. The laser scanning device according to claim 1, wherein the shutter portion is the same member as the opening / closing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3176790A JPH0519603A (en) | 1991-07-17 | 1991-07-17 | Laser scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3176790A JPH0519603A (en) | 1991-07-17 | 1991-07-17 | Laser scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0519603A true JPH0519603A (en) | 1993-01-29 |
Family
ID=16019896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3176790A Pending JPH0519603A (en) | 1991-07-17 | 1991-07-17 | Laser scanning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0519603A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0626624A2 (en) * | 1993-04-28 | 1994-11-30 | Canon Kabushiki Kaisha | Image forming apparatus assembling method including mounting of outer casing |
| KR100449088B1 (en) * | 2002-07-12 | 2004-09-18 | 삼성전자주식회사 | laser beam isolation apparatus and image forming apparatus having the same |
| KR100694144B1 (en) * | 2005-07-20 | 2007-03-12 | 삼성전자주식회사 | Laser scanning unit and image forming apparatus having the same |
| EP1770430A1 (en) * | 2005-09-30 | 2007-04-04 | Samsung Electronics Co., Ltd. | Image Forming Apparatus |
| US7499071B2 (en) * | 2005-07-19 | 2009-03-03 | Sharp Kabushiki Kaisha | Exposure device with a transmissive member and members for shielding the same |
| US8107854B2 (en) | 2008-06-18 | 2012-01-31 | Samsung Electronics Co., Ltd. | Image forming apparatus |
| US8130248B2 (en) | 2005-07-26 | 2012-03-06 | Samsung Electronics Co., Ltd. | Image forming apparatus and light scanning apparatus |
| JP2015114578A (en) * | 2013-12-13 | 2015-06-22 | 株式会社島津製作所 | Light measurement instrument and safety device for use in the same |
-
1991
- 1991-07-17 JP JP3176790A patent/JPH0519603A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0626624A2 (en) * | 1993-04-28 | 1994-11-30 | Canon Kabushiki Kaisha | Image forming apparatus assembling method including mounting of outer casing |
| EP0626624A3 (en) * | 1993-04-28 | 1996-03-27 | Canon Kk | Image forming apparatus assembling method including mounting of outer casing. |
| KR100449088B1 (en) * | 2002-07-12 | 2004-09-18 | 삼성전자주식회사 | laser beam isolation apparatus and image forming apparatus having the same |
| US7499071B2 (en) * | 2005-07-19 | 2009-03-03 | Sharp Kabushiki Kaisha | Exposure device with a transmissive member and members for shielding the same |
| CN100465808C (en) * | 2005-07-19 | 2009-03-04 | 夏普株式会社 | Exposure device |
| KR100694144B1 (en) * | 2005-07-20 | 2007-03-12 | 삼성전자주식회사 | Laser scanning unit and image forming apparatus having the same |
| US8130248B2 (en) | 2005-07-26 | 2012-03-06 | Samsung Electronics Co., Ltd. | Image forming apparatus and light scanning apparatus |
| EP1770430A1 (en) * | 2005-09-30 | 2007-04-04 | Samsung Electronics Co., Ltd. | Image Forming Apparatus |
| US7477280B2 (en) | 2005-09-30 | 2009-01-13 | Samsung Electronics Co., Ltd. | Image forming apparatus having scanning beam blocking member |
| US8107854B2 (en) | 2008-06-18 | 2012-01-31 | Samsung Electronics Co., Ltd. | Image forming apparatus |
| JP2015114578A (en) * | 2013-12-13 | 2015-06-22 | 株式会社島津製作所 | Light measurement instrument and safety device for use in the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6125251A (en) | Image forming device having internal access capability | |
| US8744305B2 (en) | Image forming apparatus with latch for openable cover | |
| JPH0519603A (en) | Laser scanning device | |
| US5005053A (en) | Image-forming machine having a process assembly comprising two independently movable units | |
| KR100767110B1 (en) | laser beam isolation apparatus and image forming apparatus having the same | |
| US20060018670A1 (en) | Laser shutting device and laser scanning unit employing the same | |
| US7002615B2 (en) | Laser beam isolation apparatus of a laser printer | |
| US7477280B2 (en) | Image forming apparatus having scanning beam blocking member | |
| JP3434123B2 (en) | Image forming device | |
| JPH06297755A (en) | Laser scanning device | |
| US5065180A (en) | Image recording apparatus having means for preventing sheet cartridge from its free disassembly | |
| US6796736B1 (en) | Image forming device having front and side covers | |
| JPH01298378A (en) | Scanning optical device | |
| JPH0420186B2 (en) | ||
| JP3368283B2 (en) | Laser scanning device | |
| JP3655444B2 (en) | Image forming apparatus | |
| JPS6323177A (en) | Electrophotographic device | |
| JP2005070309A (en) | Image forming apparatus | |
| JPH04116583A (en) | Waste toner cartridge | |
| JP2615448B2 (en) | Laser printer | |
| JP2006053475A (en) | Image forming apparatus | |
| JPH11179955A (en) | Image forming apparatus | |
| JPH09203878A (en) | Scanning optical device | |
| JPH0844161A (en) | Electrophotographic device | |
| JPH06198951A (en) | Laser beam screening device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071113 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081113 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091113 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101113 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101113 Year of fee payment: 12 |