JPS6020117Y2 - Development bias automatic return device - Google Patents
Development bias automatic return deviceInfo
- Publication number
- JPS6020117Y2 JPS6020117Y2 JP13588577U JP13588577U JPS6020117Y2 JP S6020117 Y2 JPS6020117 Y2 JP S6020117Y2 JP 13588577 U JP13588577 U JP 13588577U JP 13588577 U JP13588577 U JP 13588577U JP S6020117 Y2 JPS6020117 Y2 JP S6020117Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- setting
- setting lever
- developing bias
- return device
- 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
Description
【考案の詳細な説明】
本考案は現像バイアス自動復帰装置に関するものである
。[Detailed Description of the Invention] The present invention relates to a developing bias automatic return device.
従来の複写機において、原稿の種類に関係なく鮮明な複
写を得るために現像バイアスを変えることがしばしば生
じた。In conventional copying machines, it was often necessary to vary the development bias in order to obtain clear copies regardless of the type of original.
このバイアス変更のための手段としてはスイッチ、レバ
ー等を所定の位置にセットするため種々の現像バイアス
に対応するだけのスイッチを設け、ある複写プロセスの
終了後、現像バイアスをもとにもどす様にしたものであ
る。The means for changing this bias is to set switches, levers, etc. at predetermined positions by providing enough switches to correspond to various developing biases, and after a certain copying process is completed, to return the developing bias to the original value. This is what I did.
しかしながら複写終了後、前記レバー等を通常のバイア
ス位置にもどし忘れることがしばしばあり、次の複写の
場合に現像バイアス設定違いによるコピー質への影響が
あった。However, after copying is completed, it is often forgotten to return the lever etc. to the normal bias position, and the copy quality is affected by the difference in the developing bias setting in the case of the next copy.
本考案は上記の事情に鑑みなされたものであって、その
目的とするところは構成が簡単で安価であるばかりか設
定用レバーの通常のバイアス位置へのもどし忘れを防ぎ
得て次の複写の場合の現像バイアス設定違いによるコピ
ー質への悪影響が防止できる現像バイアス自動復帰装置
を提供ることにある。The present invention was devised in view of the above circumstances, and its purpose is not only to have a simple and inexpensive structure, but also to prevent forgetting to return the setting lever to the normal bias position, so that the next copy can be easily made. An object of the present invention is to provide a developing bias automatic return device that can prevent adverse effects on copy quality due to differences in developing bias settings in certain cases.
以下、本考案を図面を参照して説明する。Hereinafter, the present invention will be explained with reference to the drawings.
図面中１０は複写機のフレームに固定された支持部材即
ちブラケットであり、このブラケット１０の上部には枚
数合せ用のダイヤル１がラチェット２と共にピン１１に
より回転可能に設けである。In the drawing, reference numeral 10 denotes a support member or bracket fixed to the frame of the copying machine, and a dial 1 for adjusting the number of sheets is rotatably provided on the upper part of the bracket 10 by means of a pin 11 together with a ratchet 2.
またブラケット１０にはレバー４がピン１１により上下
揺動可能に設けてあり、このレバー４はスプリング５に
より反時計廻り方向に付勢されていて、レバー４の後端
部は前記ラチェット２に当接している。Further, a lever 4 is provided on the bracket 10 so as to be able to swing up and down by a pin 11. This lever 4 is biased counterclockwise by a spring 5, and the rear end of the lever 4 comes into contact with the ratchet 2. are in contact with each other.
レバー４の先端部には板ばねよりなる係止部材６が取付
けである。A locking member 6 made of a leaf spring is attached to the tip of the lever 4.
この係止部材６は両側部に突出部６ａを備えている。This locking member 6 is provided with protrusions 6a on both sides.
前記ブラケット１０にはマイクロスイッチ３が取付けて
あり、このマイクロスイッチ３はラチェット２の最大爪
部２′でレバー４が回動したときこのレバー４により作
動して電源を切る作用をなすものである。A microswitch 3 is attached to the bracket 10, and this microswitch 3 is actuated by the lever 4 to turn off the power when the lever 4 is rotated by the largest pawl 2' of the ratchet 2. .
ブラケット１０の前面には現像バイアスの設定用レバー
７がピン１２により左右揺動可能に取付けてあり、この
設定用レバー７の下部にはマグネット８が固定しである
。A developing bias setting lever 7 is attached to the front surface of the bracket 10 so as to be swingable from side to side by a pin 12, and a magnet 8 is fixed to the lower part of this setting lever 7.
また、ブラケット１０の前面下部には折曲部１３が形成
してあり、設定用レバー７が中立の状態で前記マグネッ
ト８は折曲部１３に吸着している。Further, a bent portion 13 is formed at the lower front of the bracket 10, and the magnet 8 is attracted to the bent portion 13 when the setting lever 7 is in a neutral state.
また、ブラケット１０の前面下部の折曲部１３をはさん
だ左右にリードスイッチ９が設けである。Further, reed switches 9 are provided on the left and right sides of the bent portion 13 at the lower front of the bracket 10.
設定用レバー７が中立状態では、このレバー７は係止部
材６の突出部６ａｔ６ａ間に位置している。When the setting lever 7 is in the neutral state, the lever 7 is located between the protrusions 6at6a of the locking member 6.
前記レバー４がスプリング５によりラチェット２に当接
しこのラチェット２の最大爪部２′によりレバー４が回
動し係止部材６が設定用レバー７から外れる構成は係止
解除機構Ａを形作るものであり、また、設定用レバー７
の下端部に設けたマグネット８とブラケット１０の折曲
部１３とで戻し機構Ｂを構成している。The structure in which the lever 4 is brought into contact with the ratchet 2 by the spring 5, the lever 4 is rotated by the largest pawl 2' of the ratchet 2, and the locking member 6 is released from the setting lever 7 forms the lock release mechanism A. Yes, and setting lever 7
The magnet 8 provided at the lower end of the bracket 10 and the bent portion 13 of the bracket 10 constitute a return mechanism B.
次に作動を説明する。Next, the operation will be explained.
まず、ダイヤル１を任意の複写枚数に設定した後現像バ
イアスの設定用レバー７を操作して原稿の種類に応じて
左側（濃）、右側（淡）、中立（普通）のいずれかを選
ぶ。First, after setting the dial 1 to a desired number of copies, the developing bias setting lever 7 is operated to select one of the left side (dark), right side (light), and neutral (normal) depending on the type of document.
この場合中立以外のときは設定用レバー７は第４図■に
示すようにストッパ６の突出部６ａに弾性的に接して固
定されており、マグネット８によりリードスイッチ９が
ＯＮされ現像バイアス設定の信号が得られる。In this case, when the setting lever 7 is not neutral, the setting lever 7 is fixed in elastic contact with the protrusion 6a of the stopper 6, as shown in FIG. I get a signal.
そしてこの状態で先に設定した複写枚数まで複写プロセ
スが行なわれる。In this state, the copying process is carried out up to the previously set number of copies.
この複写プロセス終了後ダイヤル１に刻設された“ＯＦ
Ｆ“の位置までダイヤル１を回転することにより、ダイ
ヤル１に連動してラチェット２が回転し、その最大爪部
２′によりレバー４が押し下げられる。After completing this copying process, “OF” is engraved on dial 1.
By rotating the dial 1 to the F'' position, the ratchet 2 rotates in conjunction with the dial 1, and the lever 4 is pushed down by its largest pawl 2'.
このためマイクロスイッチ３が作動し電源は切れる。Therefore, the microswitch 3 is activated and the power is turned off.
また、このとき、ストッパ６は上昇し設定用レバー７よ
りはずれる。Also, at this time, the stopper 6 rises and disengages from the setting lever 7.
このため設定用レバー７は自重により中立の位置までも
どりマグネット８は折曲部１３に吸着し設定用レバー７
は固される。Therefore, the setting lever 7 returns to the neutral position due to its own weight, and the magnet 8 is attracted to the bent part 13, and the setting lever 7
is solidified.
次に再び複写を行なうときには、電源を入れるためダイ
ヤル１を回転する。Next time when copying is to be performed again, the dial 1 is rotated to turn on the power.
このためにラチェット２の最大爪部２′はレバー４から
はずれ、レバー４はスプリング５により水平位置にもど
り設定用レバー７を上述したように設定する。For this reason, the largest pawl 2' of the ratchet 2 is disengaged from the lever 4, and the lever 4 is returned to the horizontal position by the spring 5, and the setting lever 7 is set as described above.
また、ラチェット２はレバー４がスプリング５により常
に接触しているため容易に回転しない。Further, the ratchet 2 does not easily rotate because the lever 4 is always in contact with the spring 5.
なお、リードスイッチ９の数を増せば更に細かい現像バ
イアスの設定の信号が得られる。Note that if the number of reed switches 9 is increased, a signal for setting the developing bias more precisely can be obtained.
本考案は以上詳述したようになるから、現像バイアス設
定装置として構成が簡単で安価になるし、また、設定用
レバー７の自動復帰が可能になり設定用レバー７の通常
のバイアス位置へのもどし忘れがなく次の複写の場合の
現像バイアス設定違いによるコピー質への悪影響をなく
すことができる。Since the present invention has been described in detail above, the structure as a developing bias setting device is simple and inexpensive, and the setting lever 7 can be automatically returned to the normal bias position. There is no need to forget to put it back, and it is possible to eliminate the adverse effect on the copy quality due to a difference in the developing bias setting in the next copy.
第１図は本考案−実施例の側面図、第２図は第１図■方
向からの矢視図、第３図は係止部材の斜視図、第４図■
、■は係止部材と現像バイアスの設定用レバーとの作動
状態の説明図である。
４はレバー、６は係止部材、７は設定用レバー、９はリ
ードスイッチ、Ａは係止解除機構、Ｂは戻し機構。Fig. 1 is a side view of the present invention-embodiment, Fig. 2 is a view taken from the arrow direction in Fig. 1, Fig. 3 is a perspective view of the locking member, and Fig. 4 is
, ■ are explanatory views of the operating states of the locking member and the developing bias setting lever. 4 is a lever, 6 is a locking member, 7 is a setting lever, 9 is a reed switch, A is a lock release mechanism, and B is a return mechanism.
Claims (1)
複数のリードスイッチ９と、支持部材に設けられて前記
リードスイッチ９のいずれかを作動する設定用レバー７
と、支持部材に設けられて設定用レバー７を設定位置に
係止する係止部材６を有するレバー４と、支持部材に設
けられて複数終了と同時にレバー４を作動して設定用レ
バー７の設定位置への係止を解除する係止解除機構Ａと
、支持部材に設けられて設定用レバー７の設定位置への
係止の解除と同時に設定用レバー７を所定位置に戻す戻
し機構Ｂとを備えたことを特徴とする現像バイアス自動
復帰装置。A plurality of reed switches 9 provided on the support member to issue a signal for setting a developing bias; and a setting lever 7 provided on the support member to operate any one of the reed switches 9.
and a lever 4 having a locking member 6 provided on the supporting member to lock the setting lever 7 in the setting position; A lock release mechanism A that releases the lock to the set position, and a return mechanism B that is provided on the support member and returns the setting lever 7 to the predetermined position at the same time as the setting lever 7 is released from the set position. A developing bias automatic return device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13588577U JPS6020117Y2 (en) | 1977-10-12 | 1977-10-12 | Development bias automatic return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13588577U JPS6020117Y2 (en) | 1977-10-12 | 1977-10-12 | Development bias automatic return device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5462734U JPS5462734U (en) | 1979-05-02 |
| JPS6020117Y2 true JPS6020117Y2 (en) | 1985-06-17 |
Family
ID=29106603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13588577U Expired JPS6020117Y2 (en) | 1977-10-12 | 1977-10-12 | Development bias automatic return device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020117Y2 (en) |
-
1977
- 1977-10-12 JP JP13588577U patent/JPS6020117Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5462734U (en) | 1979-05-02 |
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