JPS6030346A - Inkjet recorder - Google Patents

Inkjet recorder

Info

Publication number
JPS6030346A
JPS6030346A JP13724983A JP13724983A JPS6030346A JP S6030346 A JPS6030346 A JP S6030346A JP 13724983 A JP13724983 A JP 13724983A JP 13724983 A JP13724983 A JP 13724983A JP S6030346 A JPS6030346 A JP S6030346A
Authority
JP
Japan
Prior art keywords
ink mist
absorption plate
ink
hollow
negative pressure
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
Application number
JP13724983A
Other languages
Japanese (ja)
Inventor
Katsuaki Miyawaki
勝明 宮脇
Yutaka Ebi
海老 豊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13724983A priority Critical patent/JPS6030346A/en
Publication of JPS6030346A publication Critical patent/JPS6030346A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/18Ink recirculation systems
    • B41J2/185Ink-collectors; Ink-catchers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/18Ink recirculation systems
    • B41J2/185Ink-collectors; Ink-catchers
    • B41J2002/1853Ink-collectors; Ink-catchers ink collectors for continuous Inkjet printers, e.g. gutters, mist suction means

Abstract

PURPOSE:To improve a noise problem in the phase retrieval with a gutter by applying a negative pressure of a hollow ink mist absorption plate made up of a porous metal provided between a polarization electrode and a recording paper. CONSTITUTION:An ink mist absorption plate 4, for example, made of a porous sintered metal, is made hollow 4a in the middle thereof and the upper opening thereof is connected to a vacuum pump 9 through a tube. An ink mist generated in the perimeter of the ink mist absorption plate 4 is drawn with a negative pressure in the ink mist absorption plate 4 and absorbed by the hollow section of the absorption plate to be recovered effectively. Especially, in the multinozzle, ink mist is generated several or scores of times as much as the single noise and in this method, such a large amount of ink mist can be sucked and recovered quickly and effectively.

Description

【発明の詳細な説明】 抜1庁1 本発明は、インクミスト吸収装置を有するインクジェッ
ト記録装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ink jet recording apparatus having an ink mist absorption device.

従来鼓車 第1図は、インクミスト吸収装置を有するインクジェッ
ト記録装置の一例を説明するための要部構成図で、図中
、1はインクジェットヘッド、2は荷電電極、3は偏向
電極、4はインクミスト吸収板、5はガター、6は記録
紙、7はプラテン、8はインク滴で、周知のように、イ
ンクジェットヘッド1より噴射されたインク滴は荷電電
極2において印写情報信号に応じて荷電され、偏向電極
3において偏向されて記録紙6に記録される。一方、印
写に使用されないインク滴は荷電、偏向されることなく
直進してガター5により回収され、再使用に供される。
Conventional Drum Wheel FIG. 1 is a main part configuration diagram for explaining an example of an inkjet recording device having an ink mist absorption device. In the figure, 1 is an inkjet head, 2 is a charging electrode, 3 is a deflection electrode, and 4 is a deflection electrode. An ink mist absorption plate, 5 is a gutter, 6 is a recording paper, 7 is a platen, and 8 is an ink droplet.As is well known, the ink droplets ejected from the inkjet head 1 are sent to the charging electrode 2 according to the printing information signal. It is charged, deflected by the deflection electrode 3, and recorded on the recording paper 6. On the other hand, ink droplets that are not used for printing travel straight without being charged or deflected and are collected by the gutter 5 for reuse.

インクミスト吸収板4は、インク滴が記録紙6に衝突し
た時に生じるインクミストを吸収するためのものである
が、このインクミスト吸収板が十分に作用しないと、イ
ンクミストが偏向電極間に侵入して放電を起こし、特に
、位相検索のための荷電量検出をガターで行うようにし
たインクジェット記録装置においては、偏向電界によっ
て生ずる放電ノイズを検出しやすく、荷電位相ミスを発
生する等の問題があった。更に、多数個のインクジェッ
トヘッドを使用する所謂マルチノズルインクジェット記
録装置の場合は、シングルヘッドの場合に比してインク
ミストの量が多く、インクミスト吸収材を配設するだけ
ではインクミストを十分に除去することができなかった
The ink mist absorbing plate 4 is intended to absorb ink mist generated when ink droplets collide with the recording paper 6, but if this ink mist absorbing plate does not function sufficiently, ink mist may enter between the deflection electrodes. In particular, in inkjet recording devices in which a gutter detects the amount of charge for phase search, it is easy to detect discharge noise caused by the deflection electric field, causing problems such as charging phase errors. there were. Furthermore, in the case of a so-called multi-nozzle inkjet recording device that uses a large number of inkjet heads, the amount of ink mist is larger than in the case of a single head, and it is difficult to remove the ink mist sufficiently by simply providing an ink mist absorbing material. could not be removed.

目 的 本発明は、」二連のごとき実情に鑑みてなされたもので
、特に、前述のごときインクミスト吸収板を改良してイ
ンクミストの除去を効果的に行うようにし、もって、イ
ンクミストによる偏向電極間の放電、位相検索をガター
で行う場合のノイズの問題等を解決することを目的とし
てなされたものである。
Purpose The present invention has been made in view of the two actual circumstances. In particular, the ink mist absorbing plate as described above is improved to effectively remove ink mist, thereby reducing the amount of ink mist caused by ink mist. This was done with the aim of solving problems such as discharge between deflection electrodes and noise when performing phase search using a gutter.

構成 本発明の構成について、以下、実施例に基づいて説明す
る。
Configuration The configuration of the present invention will be described below based on examples.

第2図は、本発明によるインクミスト吸収装置の一実施
例を説明するための要部構成図で、図中、9は真空ポン
プ、10はインク回収容器を示し、その他第1図と同様
の作用をする部分には第1図の場合と同一の参照番号が
付しである。而して。
FIG. 2 is a configuration diagram of essential parts for explaining one embodiment of the ink mist absorption device according to the present invention. In the figure, numeral 9 indicates a vacuum pump, numeral 10 indicates an ink collection container, and other components similar to those in FIG. The operative parts are provided with the same reference numerals as in FIG. Then.

本発明においては、インクミスト吸収板4は例えば多孔
質の焼結金属で構成され、中部が中空4aになっており
、上部の開放口がチューブを介して真空ポンプ9に接続
されている。従って、本発明によると、インクミスト吸
収板4の周辺に発生したインクミストは、該インクミス
ト吸収板4内の負圧に引かれて該インクミスト吸収板の
多孔質細孔を通して該インクミスト吸収板の中空部に吸
引されて効果的に回収される。特に、マルチノズルにお
いては、シングルノズルに比して、数倍或いは数十倍の
インクミストが発生し、従来例のように単にインクミス
ト吸収板を配置するだけでは十分に吸収し切れないが、
本発明においては、このような多量なインクミス1へで
あっても迅速かつ効果的に吸引、回収することができ、
従って、偏向電極のインク汚れ、偏向電極間の放電、ガ
ターによる位相検索ノイズ等を効果的に防止することが
できる。また、負圧をかけてインクミストを吸引、回収
するようにしたので、インクミスト吸収板がインクで飽
和状態になり、ミスト吸収板からインク滴がガター上に
落ちるようなこともなくなる。
In the present invention, the ink mist absorbing plate 4 is made of, for example, porous sintered metal, has a hollow 4a in the middle, and has an open opening at the top connected to a vacuum pump 9 via a tube. Therefore, according to the present invention, the ink mist generated around the ink mist absorbing plate 4 is pulled by the negative pressure inside the ink mist absorbing plate 4, and the ink mist is absorbed through the porous pores of the ink mist absorbing plate. It is effectively collected by being sucked into the hollow part of the plate. In particular, in multi-nozzles, ink mist is generated several times or even tens of times as much as in a single nozzle, and it cannot be absorbed sufficiently by simply arranging an ink mist absorption plate as in the conventional example.
In the present invention, even such a large amount of ink error 1 can be quickly and effectively sucked and collected.
Therefore, ink stains on the deflection electrodes, discharge between the deflection electrodes, phase search noise due to the gutter, etc. can be effectively prevented. Further, since the ink mist is sucked and collected by applying negative pressure, the ink mist absorption plate becomes saturated with ink, and ink droplets do not fall from the mist absorption plate onto the gutter.

第3図は、本発明の他の実施例を示す要部構成図で、こ
の実施例は、図示のように、インクミスト吸収板の記録
紙側の壁厚を薄くし、記録紙側に3− おける空気抵抗を小さくし、もって、記録紙側で発生、
飛散するインクミストをより効果的に吸引、回収するよ
うにしたものである。
FIG. 3 is a configuration diagram of main parts showing another embodiment of the present invention. In this embodiment, as shown in the figure, the wall thickness of the ink mist absorbing plate on the recording paper side is made thinner, and the wall thickness on the recording paper side is made thinner. - By reducing the air resistance generated on the recording paper side,
This system is designed to more effectively suck and collect scattered ink mist.

効 果 以上の説明から明らかなように、本発明によると、放電
のない信頼性の高いインクジェット記録装置を提供する
ことができる。ガターによる位相検索の場合に、ノイズ
の影響のない正確な位相検索を行うことができる。また
、偏向電極による印字歪のないインクジェット記録装置
を提供することができる等の利点がある。
Effects As is clear from the above description, according to the present invention, it is possible to provide a highly reliable inkjet recording device that is free from discharge. In the case of phase search using a gutter, accurate phase search can be performed without the influence of noise. Further, there are advantages such as being able to provide an inkjet recording device free from printing distortion caused by deflection electrodes.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、従来のインクジェット記録装置におけるイン
クミスト回収装置の一例を説明するための要部構成図、
第2図及び第3図は、それぞれ本発明によるインクミス
ト吸収装置の実施例を示す要部構成図である。 1・・・インクジェットヘッド、2・・・荷電電極、3
・・・偏向電極、4・・インクミスト吸収板、4a・・
・中空部、5・・ガター、6・・・記録紙、7・プラテ
ン、94− ・・・真空ポンプ、10・・・インク回収容器。 第1ト 3 第2図 −9、A 第3図 9 10
FIG. 1 is a main part configuration diagram for explaining an example of an ink mist collection device in a conventional inkjet recording device;
FIGS. 2 and 3 are main part configuration diagrams showing embodiments of an ink mist absorbing device according to the present invention, respectively. 1... Inkjet head, 2... Charged electrode, 3
...Deflection electrode, 4...Ink mist absorption plate, 4a...
- Hollow part, 5... Gutter, 6... Recording paper, 7. Platen, 94-... Vacuum pump, 10... Ink collection container. Fig. 1-3 Fig. 2-9, A Fig. 3 9 10

Claims (1)

【特許請求の範囲】[Claims] ノズルより噴射したインク滴を荷電、偏向して印字する
インクジェット記録装置において、偏向電極と記録紙と
の間に多孔質金属で構成された中空のインクミスト吸収
板を配設し、前記中空部に負圧をかけるようにしたこと
を特徴とするインクジェット記録装置。
In an inkjet recording device that prints by charging and deflecting ink droplets ejected from a nozzle, a hollow ink mist absorbing plate made of porous metal is disposed between the deflection electrode and the recording paper, and a An inkjet recording device characterized by applying negative pressure.
JP13724983A 1983-07-27 1983-07-27 Inkjet recorder Pending JPS6030346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13724983A JPS6030346A (en) 1983-07-27 1983-07-27 Inkjet recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13724983A JPS6030346A (en) 1983-07-27 1983-07-27 Inkjet recorder

Publications (1)

Publication Number Publication Date
JPS6030346A true JPS6030346A (en) 1985-02-15

Family

ID=15194249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13724983A Pending JPS6030346A (en) 1983-07-27 1983-07-27 Inkjet recorder

Country Status (1)

Country Link
JP (1) JPS6030346A (en)

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