JPS6083053A - Automatic toner replenishing device - Google Patents
Automatic toner replenishing deviceInfo
- Publication number
- JPS6083053A JPS6083053A JP58191828A JP19182883A JPS6083053A JP S6083053 A JPS6083053 A JP S6083053A JP 58191828 A JP58191828 A JP 58191828A JP 19182883 A JP19182883 A JP 19182883A JP S6083053 A JPS6083053 A JP S6083053A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- level
- density
- toner replenishing
- toner concentration
- 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
- 238000001816 cooling Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
- G03G15/0849—Detection or control means for the developer concentration
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、乾式電子写真方式の漢字プリンタ等の印字
濃度を一定に保つ為のトナー補給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 toner replenishing device for maintaining a constant print density in a dry electrophotographic Kanji printer or the like. .
従来この種の方式として第1図に示すものがあった。図
において(11は文字ドツトカウンタ、(21はこの文
字ドツトカウンタ111と、印字濃度ダイヤル(二で指
定されたカウンタ値の一致回路であるう次に動作につい
て説明する。A conventional system of this type is shown in FIG. In the figure, (11 is a character dot counter, (21 is a circuit for matching the counter value specified by the print density dial (2) and this character dot counter 111.The operation will be explained next.
漢字プリンタの印字は、各文字をドツトの有無に分解し
て表示するのが一般的であるが、この文字ドツト信号を
、文字ドツトカウンター(11に入力して計数する。一
方印字濃度をオペレータがある程度自由に選ぶようにす
る為(二、印字濃度ダイヤルが設定されており、このダ
イヤル(二よりある値が一致回路(2)にセットされ、
文字ドツトカウンタ(2)の出力と一致する迄文字ドツ
ト信号を計数し続ける。When printing with a kanji printer, it is common to display each character by dividing it into the presence or absence of dots, but this character dot signal is input to the character dot counter (11) and counted.On the other hand, the print density is determined by the operator. In order to have some degree of freedom in selection (2), a print density dial is set, and a certain value from this dial (2) is set in the matching circuit (2).
The character dot signal continues to be counted until it matches the output of the character dot counter (2).
この両者が一致するタイミングを、トナー補給信号とし
て現像機内に一定量のトナーを補給する。The timing at which these two coincide is used as a toner replenishment signal to replenish a certain amount of toner into the developing machine.
同時に、ドツトカウンタil+のカウンタ値をRe5e
t状態(=戻す。At the same time, the counter value of dot counter il+ is set to Re5e.
t state (= return.
なお印字濃度ダイヤルによってセットされる値は濃度が
濃い程小さな値となっている。即ち、同じドツト数でも
濃度が濃い程早い周期でトナー補給信号を出力する。Note that the value set by the print density dial becomes smaller as the density becomes higher. That is, even if the number of dots is the same, the higher the density, the faster the toner replenishment signal is output.
従来のトナー補給の一例は以上の方式をとっていた為、
印字プロセスの状態をフィードバックしてないので、印
字濃度が薄くなり始めるとだんだん薄く、また濃くなり
始めるとだんだん濃くなる傾向の欠点があった。An example of conventional toner replenishment uses the above method,
Since there is no feedback on the status of the printing process, there is a drawback that when the print density starts to get lighter, it tends to get lighter, and when it starts to get darker, it tends to get darker.
この発明は上記のような従来のものの欠点を除去するた
めになされたもので、文字ドツト信号と共にトナー濃度
信号によりトナー補給を制御することにより、確実に印
字濃度を一定に保つことを目的としている。This invention was made to eliminate the above-mentioned drawbacks of the conventional printers, and its purpose is to reliably keep the print density constant by controlling toner replenishment using a toner density signal as well as a character dot signal. .
以下この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第2図(二おいて、(3)はトナー濃度センサ出カ(A
+と印字濃度ダイヤルにより数段階のスレッショルドレ
ベル(Blとのレベル比較回路、(4)はレベル比較回
路(31の状態により、一致回路(2)の信号を通すが
否かを制御するトナー補給ゲートである。Figure 2 (2, (3) shows the toner concentration sensor output (A
+ and the print density dial control several threshold levels (level comparison circuit with Bl, (4) is a level comparison circuit (toner replenishment gate that controls whether or not to pass the signal of the matching circuit (2) depending on the state of 31) It is.
第2図において、トナー濃度センサ出カ(A+は現像機
内のトナー濃度を直接又は間接的に検出するレベル信号
である。スレッショルドレベル(I:I)ハ、印字濃度
ダイヤルに連結された数種の値が設定されているもので
、濃度が濃い程高レベルを選択する様構成されている。In Figure 2, the toner density sensor output (A+ is a level signal that directly or indirectly detects the toner density in the developing machine. A value is set, and the higher the density, the higher the level is selected.
この(A+と(B)がレベル比較回路(3)に入力され
る。(A) < (Idlの時即ちスレッショルドレベ
ルよりもトナー濃度センサ出力が小さい時のみ従来構成
のトナー補給信号を通すこきができるトナー補給ゲート
(4)を設置することにより、実際のトナー濃度を監視
しながらトナー補給の有/無指令を与えることができる
。These (A+ and (B)) are input to the level comparison circuit (3).The conventional configuration passes the toner replenishment signal only when (A) < (Idl, that is, when the toner concentration sensor output is smaller than the threshold level. By installing a toner replenishment gate (4) that allows for toner replenishment, it is possible to issue a command for whether or not to replenish toner while monitoring the actual toner concentration.
なお上記実施例には、装置の異常時検出方法は記してい
ないが、例えば(21の出力のトナー補給信号が何回き
ても[Al2(Blの場合、エラー表示する等の検出回
路を付加すれば更に信来信の高い方式となる。Although the above embodiment does not describe a method for detecting an abnormality in the device, for example, a detection circuit is added that displays an error message in the case of Al2 (Bl) no matter how many times the toner replenishment signal of output 21 is received. This will make the method even more reliable.
以上のよう(=この発明(二よれば、文字ドツトカウン
トによるトナー補給方式と、トナー濃度センサによるト
ナー補給方式を並用している為信頼性の高いトナー補給
をすることかできる。As described above, according to this invention (2), highly reliable toner replenishment can be achieved because the toner replenishment method using the character dot count and the toner replenishment method using the toner density sensor are used together.
第1図は従来のトナー補給装置のブロック図、第2図は
この発明の一実施例によるトナー補給装置のブロック図
であ<、)。
fi+・文字ドツトカウンタ、(2;・・・一致回路、
(3)・・・レベル比較回路、(41・・・トナー補給
ゲート。
なお、図中同一符号は同−又は相当部分を示す。
代理人 大岩増雄
第1図
第212I
手続補正書(自発)
21発明の名称
トナー自動補給装置
3、補正をする者
事件との関係 tar許、′1胃(1人件 所 束卓都
千代111区丸の内−ユ丁に12番:3シ十名 称 (
601,)三菱電機株式会社代表者片由仁八部
4、代理人
住 所 東卓都丁・代111区丸の内−2丁11213
5;。
:、菱電機株式会社内 、
5、補正の対象
(1)明細書の特許請求の範囲、発明の詳細な説明の柄
6、補正の内容
(1)明細書の特許請求の範囲を別紙の通りに訂正する
。
(2)明細書をつぎのとおり訂正する。
7、 添イ寸書顎の目録
(1)訂正後の特許請求の範囲を示す書面 1通以 上
特許請求の範囲
乾式電子写真装置の漢字プリンタ等トナー補給装置にお
いて、文字等のドツト数を計数するド・ノドカウンタと
、トナー濃度レベルを自動検出する濃度センサを具備し
、上記ドツトカウンタのカウント値が所定値以上、かつ
上記トナー濃度レベルが所定濃度レベル以下に達した時
トナー補給指金信号を出力することを特徴とするトナー
自動補給装置1、FIG. 1 is a block diagram of a conventional toner replenishing device, and FIG. 2 is a block diagram of a toner replenishing device according to an embodiment of the present invention. fi+・Character dot counter, (2;...matching circuit,
(3)... Level comparison circuit, (41... Toner replenishment gate. In addition, the same reference numerals in the figure indicate the same - or corresponding parts. Agent Masuo Oiwa Figure 1 Figure 212I Procedural amendment (voluntary) 21 Name of the invention: Automatic toner replenishing device 3. Relationship with the person making the amendment.
601,) Mitsubishi Electric Co., Ltd. Representative Katayuni Hachibe 4, Agent Address: 11213 Marunouchi-2-2, 111-ku Tocho-Dai, Totaku
5;. :, within Ryodenki Co., Ltd. 5. Subject of amendment (1) Claims of the specification, pattern of detailed explanation of the invention 6, Contents of amendment (1) Claims of the specification as shown in the attached sheet Correct. (2) The specification shall be amended as follows. 7. Catalog of appendix dimensions (1) Document indicating the scope of patent claims after correction 1 or more Claims Counting the number of dots of characters, etc. in toner replenishment devices such as kanji printers of dry electrophotographic devices and a density sensor that automatically detects the toner density level, and when the count value of the dot counter is above a predetermined value and the toner density level is below the predetermined density level, a toner replenishment finger signal is generated. An automatic toner replenishing device 1 characterized in that it outputs
Claims (1)
いて、文字等のドツトMを計数するドツトカウンタと、
トナー濃度レベルを自動検出する濃度センサを具備し、
上記ドツトカウンタのカウント値が所定値以上、がっ上
記トナー濃度レベルが所定濃度レベル以下に達した時ト
ナー補給指冷信号を出力することを特徴とするトナー自
動補給装置。A dot counter for counting dots M of characters, etc. in a toner replenishment device such as a kanji brileter of a dry type electrophotographic device;
Equipped with a density sensor that automatically detects toner density level.
An automatic toner replenishing device that outputs a toner replenishment instruction cooling signal when the count value of the dot counter reaches a predetermined value or more and the toner concentration level reaches a predetermined concentration level or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58191828A JPS6083053A (en) | 1983-10-12 | 1983-10-12 | Automatic toner replenishing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58191828A JPS6083053A (en) | 1983-10-12 | 1983-10-12 | Automatic toner replenishing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6083053A true JPS6083053A (en) | 1985-05-11 |
Family
ID=16281192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58191828A Pending JPS6083053A (en) | 1983-10-12 | 1983-10-12 | Automatic toner replenishing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6083053A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010054890A (en) * | 2008-08-29 | 2010-03-11 | Kyocera Mita Corp | Image forming apparatus |
-
1983
- 1983-10-12 JP JP58191828A patent/JPS6083053A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010054890A (en) * | 2008-08-29 | 2010-03-11 | Kyocera Mita Corp | Image forming apparatus |
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