JPS6183570A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6183570A
JPS6183570A JP59204144A JP20414484A JPS6183570A JP S6183570 A JPS6183570 A JP S6183570A JP 59204144 A JP59204144 A JP 59204144A JP 20414484 A JP20414484 A JP 20414484A JP S6183570 A JPS6183570 A JP S6183570A
Authority
JP
Japan
Prior art keywords
counter
carrier unit
piece
image forming
reset
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
JP59204144A
Other languages
Japanese (ja)
Inventor
Haruhiko Nagayama
永山　治彦
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 JP59204144A priority Critical patent/JPS6183570A/en
Publication of JPS6183570A publication Critical patent/JPS6183570A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1875—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit provided with identifying means or means for storing process- or use parameters, e.g. lifetime of the cartridge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1671—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the photosensitive element
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1606—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the photosensitive element
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1663—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts having lifetime indicators
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/18—Cartridge systems
    • G03G2221/183—Process cartridge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To decide securely whether a carrier unit is new or old through simple constitution by bending a decision piece with the reset member of a counter when a carrier unit which is new is mounted on the image forming device body. CONSTITUTION:When the carrier unit 5 is new and before being mounted on a printer body, the decision piece 52 projects facing a window hole 53. A cut made of, for example, a V groove is formed at a proper place of the decision piece 52, and the decision piece 52 is bendable at this position. The carrier unit 5 having this decision piece 52 is supported on a base body and inserted into the printer body, and then the reset member 51 supported on the counter of the main body side intrudes into the window hole 53 of the support body 4 to reset the counter and also bend the decision piece 52.

Description

【発明の詳細な説明】 投丘氷乱 本発明は、潜像担持体とこれを支持する支持体とを一体
に組付けた担持体ユニットを１作像装置本体に着脱自在
に装着し、作像装置本体に設けられたカウンタにより潜
像担持体の使用時間を計測し、担持体ユニットに潜像担
持体の使用経歴を判別する判別片を設け、使用経歴のな
い担持体ユニットを作像装置本体に装着したとき判別片
がカウンタのリセット部材を押圧作動させてカウンタを
リセットし、使用経歴のある担持体ユニットを装着した
ときはカウンタをリセットしないように構成した作像装
置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an image forming apparatus in which a carrier unit in which a latent image carrier and a support for supporting the latent image carrier are integrally assembled is removably attached to an image forming apparatus main body. A counter installed in the imaging device body measures the usage time of the latent image carrier, and the carrier unit is provided with a discrimination piece for determining the history of use of the latent image carrier, and a carrier unit that has not been used is used in the imaging device. To provide an image forming device configured such that a discrimination piece presses a reset member of a counter to reset the counter when attached to a main body, and does not reset the counter when a carrier unit that has been used is attached.

従」Ｕ支砦− 電子複写機、レーザプリンタ等として構成される上記形
式の作像装置は従来より公知である。この種作像装置は
、たとえば感′光体から成る潜像担持体がその使用時間
の経過に伴って劣化したとき、これを新たな潜像担持体
と担持体ユニットごと交換するが、新たなユニットを装
着したときその使用時間を改めてカウントする目的で、
カウンタをリセットする必要がある。2. Description of the Related Art Image forming apparatuses of the above type configured as electronic copying machines, laser printers, etc. are conventionally known. In this type of image forming apparatus, for example, when a latent image carrier made of a photoreceptor deteriorates over time, it is replaced with a new latent image carrier and the whole carrier unit. For the purpose of counting the usage time again when the unit is installed,
The counter needs to be reset.

一方、担持体ユニットの交換の目的以外に、二のユニッ
トを作像装置本体から取り外し、再び同じユニットを本
体にセットすることもあり、この場合には同じ潜像担持
体の使用を継続するのであるから、ユニットの再セツト
時にカウンタをリセットすべきではない。On the other hand, for purposes other than replacing the carrier unit, the second unit may be removed from the image forming apparatus main body and the same unit may be set in the main body again. In this case, the same latent image carrier will continue to be used. Therefore, the counter should not be reset when the unit is reset.

このように新たなユニットの装着時にはカウンタをリセ
ットし、逆に使用を継続すべきユニットのセット時には
カウンタのリセット動作を禁止する必要があるが、この
目的で従来より冒頭に記載した判別片を担持体ユニット
に設けている。従来の判別片は、ユニットの支持体に穿
設された孔を塞ぐように装着された紙片から成り、新た
な二二ツ１へを作像装置本体に装着したとき、紙片から
成る判別片がカウンタのリセット部材を押圧し、カウン
タをリセットさせると共に、リセット部材が最終位置に
押し込まれたときにリセット部材が紙片を破るように構
成されている。したがってこの担持体ユニットを作像装
置本体から取り外し、これを再びセットしたとき紙片は
既に破られているので、これがリセット部材を押圧作動
させることはなく、カウンタがリセットされることはな
い。このように判別片によって担持体ユニットに使用経
歴があるか否かを判別し、これに応じてウンタをリセッ
トし、あるいはリセットさせないようにすることができ
る。In this way, when installing a new unit, it is necessary to reset the counter, and conversely, when installing a unit that should continue to be used, it is necessary to prohibit the counter reset operation.For this purpose, the identification strip described at the beginning has been carried. It is installed in the body unit. The conventional discrimination piece consists of a piece of paper attached to cover a hole drilled in the support of the unit, and when the new 2-2 unit 1 is attached to the main body of the image forming apparatus, the discrimination piece made of the paper piece is The reset member of the counter is pressed to reset the counter and is configured to tear the piece of paper when the reset member is pushed into its final position. Therefore, when this carrier unit is removed from the main body of the image forming apparatus and set again, the piece of paper has already been torn, so the reset member will not be pressed and the counter will not be reset. In this manner, it is possible to determine whether or not the carrier unit has a history of use using the determination piece, and accordingly, the counter can be reset or not reset.

ところが紙片から成る判別片を用いると、リセット部材
が完全に作動する前に紙片が破れ、カウンタをリセット
できないことがあり、またユーザがセット前の新たなユ
ニットの取扱い時に、過誤により紙片を破り、その判別
機能を失わしめてしまうこともあった。However, if a discriminating piece made of a piece of paper is used, the piece of paper may be torn before the reset member is fully activated, making it impossible to reset the counter, and the user may accidentally tear the piece of paper when handling a new unit before setting it. In some cases, the discrimination function was lost.

且カ 本発明の目的は上記従来の欠点を簡単な構成によって除
去し得る作像装置、特にその判別片の構成を提供するこ
とである。Furthermore, it is an object of the present invention to provide an image forming apparatus, particularly the structure of a discrimination piece thereof, which can eliminate the above-mentioned conventional drawbacks with a simple structure.

魔玖 本発明は、未使用の担持体ユニットを作像装置本体に装
着したとき、判別片がカウンタのリセット部材によって
曲折されるよう、該判別片を担持体ユニットの支持体に
設けた構成を提案する。The present invention has a configuration in which a discrimination piece is provided on a support of a carrier unit so that the discrimination piece is bent by a reset member of a counter when an unused carrier unit is attached to an image forming apparatus main body. suggest.

以下、本発明の実施例を図面に従って説明する。Embodiments of the present invention will be described below with reference to the drawings.

第１歯は本発明を適用した作像装置の一例としてレーザ
プリンタを示す。本発明の理解のため、先ずその全体構
成の概略を説明する。The first tooth shows a laser printer as an example of an image forming device to which the present invention is applied. In order to understand the present invention, first, an outline of its overall configuration will be explained.

図示した例では潜像担持体が２つの支持ローラ１．２に
巻き掛けられた無端ベルト状の感光体３として構成され
、この感光体３と支持ローラ１゜２は、第２図にも示す
ように箱状の支持体４に収容され、これらが一体的に組
付けられた１つの担持体ユニット５を構成している。ロ
ーラ１，２の各支軸２１．２８は支持体４の各側部に回
転自在に支持されている。In the illustrated example, the latent image carrier is constructed as an endless belt-shaped photoreceptor 3 wrapped around two support rollers 1.2, and the photoreceptor 3 and support rollers 1.2 are also shown in FIG. These are housed in a box-shaped support 4, and constitute one carrier unit 5 that is integrally assembled. Each support shaft 21, 28 of the rollers 1, 2 is rotatably supported on each side of the support body 4.

プリンタの作動時に感光体３は矢印Ａ方向に駆動され、
帯電チャージャ６によってその表面を一様に帯電され、
この帯電部分は１図示していないレーザ等の光学要素を
有する光学ユニット７から出射したレーザビームしによ
って露光され、該表面に画信号に応じた静電潜像が形成
される。この潜像は、現像装置８を通過するときトナー
によってトナー像化され、このトナー像は、感光体３に
給送された記録紙１０に、転写チャージャ９によって転
写される。When the printer operates, the photoreceptor 3 is driven in the direction of arrow A,
The surface is uniformly charged by the charger 6,
This charged portion is exposed by a laser beam emitted from an optical unit 7 having an optical element such as a laser (not shown), and an electrostatic latent image is formed on the surface in accordance with an image signal. This latent image is converted into a toner image by toner when passing through the developing device 8, and this toner image is transferred by the transfer charger 9 onto the recording paper 10 fed to the photoreceptor 3.

トナー像転写後の感光体３は除電ランプ１１により除電
作用を受け、クリーニング装置１２によって残存トナー
を除去される。After the toner image has been transferred, the photoreceptor 3 is subjected to a static eliminating action by a static eliminating lamp 11, and residual toner is removed by a cleaning device 12.

トナー像を転写された記録紙１ｏは、感光体３から分離
された後、定着装［９０に搬送され、ここでトナー像が
定着され、矢印Ｂで示す如く機外に排出される。The recording paper 1o on which the toner image has been transferred is separated from the photoreceptor 3 and then conveyed to a fixing device [90, where the toner image is fixed, and is discharged outside the machine as shown by arrow B.

上述した帯電、露光、現像、転写、クリーニング等の動
作が支障なく行われるように、第２図に示す如く担持体
ユニット５のケース状支持体４には、それぞれ開口１３
が形成されている。In order to perform the above-mentioned operations such as charging, exposure, development, transfer, and cleaning without any trouble, the case-like support 4 of the carrier unit 5 is provided with openings 13, respectively, as shown in FIG.
is formed.

現像装置８は、トナー１４を収容した現像タンク１５と
、感光体３に対向した現像スリーブ１６を有し、タンク
Ｉ５内のトナー１４がスリーブ１６上を矢印方向に搬送
され、現像に供される。タンり１５は第２図に示す如く
基板１８上に固定され。The developing device 8 has a developing tank 15 containing toner 14 and a developing sleeve 16 facing the photoreceptor 3. The toner 14 in the tank I5 is conveyed in the direction of the arrow on the sleeve 16 and is subjected to development. . The tongue 15 is fixed on a substrate 18 as shown in FIG.

現像スリーブ１６は基板１８に固着された１対の支持部
材１９Ｊ９ａに回転自在に支承されている。The developing sleeve 16 is rotatably supported by a pair of support members 19J9a fixed to the substrate 18.

またこれら支持部材１９．１９ａには切欠２０゜２０ａ
が形成され、これら切欠２０，２０ａに。In addition, these support members 19 and 19a have notches 20° and 20a.
are formed in these notches 20, 20a.

感光体３を巻き掛けた一方の支持ローラ１を回転自在に
支持する支軸２１の各端部がそれぞれ着脱自在に嵌合し
、現像スリーブ１６に対する感光体３の位置が定められ
ている。担持体ユニット５と基板１８と現像装置８は一
体的に組付けられ、その全体が作像ユニット２２を構成
している。Each end of a support shaft 21 that rotatably supports one of the support rollers 1 around which the photoreceptor 3 is wound is removably fitted, and the position of the photoreceptor 3 relative to the developing sleeve 16 is determined. The carrier unit 5, the substrate 18, and the developing device 8 are integrally assembled, and the entire structure constitutes an image forming unit 22.

一方、第１図に全体の概略のみを示したプリンタ本体２
３は、第２図に鎖線で略示した１対の本体側板２４．２
４ａを有し、これら側板２４，２４ａにはガイド部材２
５，２５ａが固設されている。On the other hand, the printer main body 2, of which only the overall outline is shown in FIG.
3 is a pair of main body side plates 24.2 schematically indicated by chain lines in FIG.
4a, and a guide member 2 is provided on these side plates 24, 24a.
5, 25a are fixedly installed.

作＜Ｑｔユニット２２は担持体ユニット５と共にプリン
タ本体２３から引き出すことができるが、該ユニット２
２が第１図に示した如くプリンタ本体２３に収容された
状態では、ガイド部材２５，２５ａに形成されたガイド
溝２６．２６ａに作像ユニット２２の基板側９２７，２
７ａが嵌合して支持され、その際、感光体３を巻き掛け
た各ローラ１゜２をそれぞれ支持した支＠２１．２８の
各端部が。The unit 22 can be pulled out from the printer main body 23 together with the carrier unit 5;
2 is accommodated in the printer main body 23 as shown in FIG.
7a is fitted and supported, and each end of the support @21.28 supported each roller 1.2 around which the photoreceptor 3 was wound.

ガイド部材２５．２５ａに形成された位置決め溝２９．
２９ａに嵌合し、光学ユニット５に対する感光体３の位
置が定められている。このとき、支持ローラ１に固定さ
れた歯車３０と、プリンタ本体側に支持された図示して
いない相手歯車とが互いに噛み合い１図示していない駆
動源からの駆動力がローラ１に伝えられ、感光体３が駆
動される。Positioning groove 29. formed in guide member 25.25a.
29a, and the position of the photoreceptor 3 relative to the optical unit 5 is determined. At this time, the gear 30 fixed to the support roller 1 and a mating gear (not shown) supported on the printer main body mesh with each other, and a driving force from a drive source (not shown) is transmitted to the roller 1, and the photosensitive Body 3 is driven.

現像スリーブ１６の支持軸に固着された歯車３７もプリ
ンタ本体側に位置不動に支持された図示していない歯車
に噛み合い、これらを介して駆動力が現像スリーブ１６
に伝えられ、該スリーブ１６が回転駆動される。A gear 37 fixed to the support shaft of the developing sleeve 16 also meshes with a gear (not shown) that is immovably supported on the printer body side, and the driving force is transmitted to the developing sleeve 16 through these gears.
, and the sleeve 16 is driven to rotate.

作像ユニット２２の保守点検、現像装置８へのトナーの
補給、あるいは担持体ユニット５の交換作業等を行うと
きは、プリンタ本体２３のカバー２３ａ　（第１図）を
開き、基板１８の取手１８ａをつかんで、作像ユニット
２２を第１図における右方（矢印Ｃ方向）に引き、これ
をプリンタ本体２３から引き出す。このとき、基板１８
の両側縁２７．２７ａはガイド溝２６．２６ａに案内さ
れながら、矢印Ｃ方向に摺動する。次いで、担持体ユニ
ット５を交換する必要のあるときは、第２図に示すよう
に担持体ユニット５を現像装置８がら雑脱し、新たな感
光体を有する担持体ユニット５を、既述の如く現像装置
８に対して組付け、しかる後作像ユニット２２の基板側
縁２７，２７ａをガイド溝２６，２６ａによって案内し
ながら、該ユニット２２を矢印Ｃと反対方向に押し込ん
で。When performing maintenance and inspection of the image forming unit 22, replenishing toner to the developing device 8, or replacing the carrier unit 5, open the cover 23a (FIG. 1) of the printer main body 23, and press the handle 18a of the board 18. , and pull the image forming unit 22 to the right in FIG. 1 (in the direction of arrow C), and pull it out from the printer main body 23. At this time, the substrate 18
Both side edges 27.27a slide in the direction of arrow C while being guided by guide grooves 26.26a. Next, when it is necessary to replace the carrier unit 5, the carrier unit 5 is roughly removed from the developing device 8 as shown in FIG. It is assembled to the developing device 8, and then the unit 22 is pushed in the direction opposite to the arrow C while guiding the substrate side edges 27, 27a of the image forming unit 22 by the guide grooves 26, 26a.

第１図に示した所定の位置に装着する。このときプリン
タ本体側に固定された一対の弾性係止部材４５＋　４５
８が、基板１８の係合溝４６，４６ａに弾性的に係入し
作像ユニット２２．したがって担持体ユニット５が所定
の位置に位置決めセットされる。Attach it to the predetermined position shown in FIG. At this time, a pair of elastic locking members 45+ 45 are fixed to the printer body side.
8 elastically engages in the engagement grooves 46, 46a of the substrate 18, and the image forming unit 22. The carrier unit 5 is thus positioned and set in a predetermined position.

感光体３が劣化したとき、上述の如くこれを新たな感光
体３と、ユニット５ごと作換するが、感光体の劣化状態
を知るため、その使用時間を計測するカウンタ５０がプ
リンタ本体に設けられ、１枚の記録紙１０にプリントが
なされる毎にカウンタ５０がその数をカウントし、この
数が所定数に達したとき、プリンタ本体に設けられた表
示器（図示せず）に担持体ユニット５を交換すべき旨表
示される。オペレータはこの表示に従って既述の如く担
持体ユニット５を新たなものに交換するが、新たなユニ
ット５を装着したとき、カウンタ５０をリセットし、新
たに記録紙の通紙回数をカウントし始め、感光体の使用
時間を計測する必要がある。また、感光体の交換ではな
く、たとえば現像装置８にトナーを補給する目的で、作
像ユニット２２を本体２３から引き出し、トナーの補給
後回びこれをセットしたときは、カウンタ５０をリセッ
トすべきではない。かかる目的で、セントされた担持体
ユニット５が新たなものかそうではないかを判別する判
別片が用いられる。本例における判別片は以下の如く構
成されている。When the photoconductor 3 deteriorates, it is replaced with a new photoconductor 3 and the entire unit 5 as described above, but in order to know the deterioration state of the photoconductor, a counter 50 is installed in the printer body to measure the usage time. The counter 50 counts the number of prints each time a print is made on one sheet of recording paper 10, and when this number reaches a predetermined number, a display (not shown) provided on the printer body indicates that the carrier A message indicating that unit 5 should be replaced is displayed. The operator follows this display and replaces the carrier unit 5 with a new one as described above, but when the new unit 5 is installed, the operator resets the counter 50 and starts counting the number of times the recording paper passes anew. It is necessary to measure the usage time of the photoreceptor. In addition, when the image forming unit 22 is pulled out from the main body 23 for the purpose of replenishing toner to the developing device 8 instead of replacing the photoconductor, and when it is set again after replenishing the toner, the counter 50 should be reset. isn't it. For this purpose, a discrimination piece is used to discriminate whether the sent carrier unit 5 is new or not. The discrimination piece in this example is constructed as follows.

担持体ユニット５の支持体４は、第２図および第４図か
ら判るように上カバー４８と下カバー４ｂとから成り、
この支持体４の一方の側部の前端に窓孔５３が穿設され
ている。支持体４のこの側部は第４図から判るように中
空に形成され、この中空部内に判別片５２が位置し、該
判別片５２は第６図にも示すように上カバー４ａに連結
されている。判別片を支持体４の空間内に収納すれば。The support body 4 of the carrier unit 5 consists of an upper cover 48 and a lower cover 4b, as can be seen from FIGS. 2 and 4.
A window hole 53 is bored at the front end of one side of the support body 4 . As can be seen from FIG. 4, this side portion of the support body 4 is formed hollow, and a discrimination piece 52 is located within this hollow portion, and the discrimination piece 52 is connected to the upper cover 4a as also shown in FIG. ing. If the discrimination piece is stored in the space of the support body 4.

オペレータがこれに手を触れることはなく、その切損１
曲折をより確実に防止できる。本例では支持体４が合成
樹脂の成形品から成り１判別片５２は樹脂製の上カバー
４ａに予め一体に成形されている。第３図、第４図およ
び第６図は担持体ユニット５が未使用状態で、しかもこ
れがプリンタ本体に装着される前の状態を示し、このと
き判別片５２は窓孔５３に対向した状態で突出している
。また判別片５２の適所にたとえばＶ　’ｒｇ　５４か
ら成る切欠が形成され、判別片はこの部分で曲折できる
ようになっている。この実施例のように判別片５２を支
持体４に一体に成形すれば、支持体４に判別片を追加的
に取付ける必要がなくなり、その製作が容易となる。ま
た判別片自体を合成樹脂で作れば、これを紙片から構成
した場合に比べ、判別片が温湿度等の環境変化に影響を
受けにくい６判別片を全屈等により構成してもよいこと
は当然である。The operator does not touch this, and the breakage 1
Bending can be more reliably prevented. In this example, the support body 4 is made of a molded article of synthetic resin, and the first discrimination piece 52 is integrally molded in advance on the upper cover 4a made of resin. 3, 4, and 6 show the carrier unit 5 in an unused state and before it is installed in the printer body, and at this time, the discrimination piece 52 is in a state facing the window hole 53. It stands out. Further, a notch made of, for example, V'rg 54 is formed at a suitable location on the discrimination piece 52, so that the discrimination piece can be bent at this portion. If the discrimination piece 52 is integrally formed with the support body 4 as in this embodiment, there is no need to additionally attach the discrimination piece to the support body 4, and its manufacture becomes easy. Furthermore, if the discrimination piece itself is made of synthetic resin, the six discrimination pieces are less susceptible to environmental changes such as temperature and humidity than when they are made from paper pieces, and the six discrimination pieces can be constructed by fully bending, etc. Of course.

上述した判別片５２を有する担持体ユニット５を基板１
８上に支持して、これを既述の如くプリンタ本体２３に
挿入していくと、本体２３側のカウンタ５０に矢印り、
　Ｅ　（第２図）方向に摺動可能に支持されたリセット
部材５１が支持体４の窓孔５３に入り込み、該部材５１
の先端が判別片５２のＶＮ５４より下方の部分に当たる
（第５図（ａ））。担持体ユニット５をさらに押し込む
と、リセット部材５１は判別片５２によって矢印り方向
に押され、該部材５１が最終位置まで押し込まれたとき
、カウンタ５０がリセットされる。判別片がもはや動か
なくなったところでこの判別片５２はリセット部材５１
により■溝５４のところで第５図（ｂ）および（ｃ）に
示す如く曲折されて塑性変形する。判別片５２が曲折さ
れるとリセット部材５１は図示していないばねの作用で
矢印Ｅ方向に戻され、カウンタ５０のリセット動作を終
了する。The carrier unit 5 having the discrimination piece 52 described above is attached to the substrate 1.
8 and insert it into the printer main body 23 as described above, the arrow will appear on the counter 50 on the main body 23 side.
A reset member 51 slidably supported in the direction E (FIG. 2) enters the window hole 53 of the support body 4, and the reset member 51
The tip of the discriminating piece 52 hits a portion below the VN 54 (FIG. 5(a)). When the carrier unit 5 is pushed further, the reset member 51 is pushed in the direction of the arrow by the discrimination piece 52, and when the member 51 is pushed to the final position, the counter 50 is reset. When the discrimination piece 52 no longer moves, the discrimination piece 52 is reset to the reset member 51.
As a result, it is bent and plastically deformed at the groove 54 as shown in FIGS. 5(b) and 5(c). When the discrimination piece 52 is bent, the reset member 51 is returned in the direction of arrow E by the action of a spring (not shown), and the reset operation of the counter 50 is completed.

かくしてカウンタ５０はカウント数を「０」に設定され
、プリント動作の開始によって記録紙１０の通紙回数、
すなわち新たに装着された感光体３の使用時間を計測す
るととができる。In this way, the count number of the counter 50 is set to "0", and the number of paper passes of the recording paper 10 is determined by starting the printing operation.
That is, the usage time of the newly attached photoreceptor 3 can be measured.

その後作俄ユニット２２を本体２３から引き出し、担持
体ユニット５を交換することなく、再びユニット２２を
プリンタ本体２３にセントしたときは、この担持体ユニ
ット５の判別片５２は既に曲折されているので、判別片
５２がリセット部材５１を作動させてカウンタ５０をリ
セット状態にすることはない。したがってこの状態で再
びプリンタを作動させれば、感光体３の使用回数は、０
からではなく、それまでカウントされた回数から引き続
きカウントされ、感光体の使用状態が正しく計測さ、れ
る。After that, when the printing unit 22 is pulled out from the main body 23 and the unit 22 is inserted into the printer main body 23 again without replacing the carrier unit 5, the identification piece 52 of the carrier unit 5 has already been bent. , the discrimination piece 52 does not actuate the reset member 51 to reset the counter 50. Therefore, if the printer is operated again in this state, the number of times the photoreceptor 3 is used will be 0.
The count is continued from the number of times counted up to that point, and the state of use of the photoreceptor is accurately measured.

判別片５２を曲折した後、これを支持体４から完全に離
脱させてもよいが、雄親した判別片が感光体に接触した
り可動部に挟み込まれたりする不都合を除去するため、
判別片を曲折させるだけどすることが有利である。After bending the discrimination piece 52, it may be completely separated from the support 4, but in order to eliminate the inconvenience of the bent discrimination piece coming into contact with the photoreceptor or being caught in the movable part,
It is advantageous to bend the discrimination piece.

本発明はレーザプリンタ以外の作像装置や、感光体以外
の潜像担持体を用いた作像装置にも適用でき、またベル
ト状以外の形態の潜像担持体を有する装置にも広く適用
可能である。The present invention is applicable to image forming devices other than laser printers, image forming devices using latent image carriers other than photoreceptors, and widely applicable to devices having latent image carriers in forms other than belt-like. It is.

読本 本発明によれば、担持体ユニットの新旧を確実に判別で
き、潜像担持体の使用経過状態を正しく計画できる。ま
た従来のように判別片として紙片を用いた場合に比べ、
オペレータが誤って判別片を破ってしまう虞れを低減で
きる。According to the present invention, it is possible to reliably determine whether a carrier unit is new or old, and it is possible to accurately plan the state of use of the latent image carrier. In addition, compared to the conventional case of using paper strips as identification strips,
It is possible to reduce the possibility that the operator will accidentally break the discrimination piece.

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

第１図は本発明に係る作像装置の一例としてレーザプリ
ンタを、その一部だけを示した概略断面図、第２図は作
像ユニットをプリンタ本体から抜き出し、その担持体ユ
ニットを取り外した状態を示す斜視図、第３図は第２図
の矢印■方向から見た斜視図、第４図は支持体側部の垂
直断面図であって。 支持体とカウンタとの配置関係を明らかにするため、カ
ウンタおよびそのリセット部材を鎖線で付加した図、第
５図（ａ）乃至（ｃ）は、判別片が曲折される状態を示
した説明図、第６回は支持体の上カバーを反転させて示
した斜視図である。 ４・・・支持体　　　　　　５・・・担持体ユニット２
３・・・本体　　　　　　５０・・・カウンタ５１・・
・リセット部材　　５２・・・判別片゛【〉２、 Ｉ　　　　″そ−、 ＼Ｎ、 ＼、 ＼Ｓ＼ ｚ４σ 第２図 Ｒ 第４図 第５図 第６図 ΔFig. 1 is a schematic sectional view showing only a part of a laser printer as an example of an image forming apparatus according to the present invention, and Fig. 2 shows a state in which the image forming unit has been extracted from the printer main body and its carrier unit has been removed. FIG. 3 is a perspective view as seen from the direction of arrow 2 in FIG. 2, and FIG. 4 is a vertical sectional view of the side of the support. In order to clarify the arrangement relationship between the support body and the counter, the counter and its reset member are added with chain lines, and FIGS. 5(a) to 5(c) are explanatory diagrams showing the state in which the discrimination piece is bent. , No. 6 is a perspective view showing the upper cover of the support body inverted. 4... Support body 5... Carrier unit 2
3...Main body 50...Counter 51...
・Reset member 52...Discrimination piece ゛ [〉2, I''So-, \N, \, \S\ z4σ Fig. 2 R Fig. 4 Fig. 5 Fig. 6 ∆

Claims (1)

【特許請求の範囲】 潜像担持体とこれを支持する支持体とを一体に組付けた
担持体ユニットを、作像装置本体に着脱自在に装着し、
作像装置本体に設けられたカウンタにより潜像担持体の
使用時間を計測し、担持体ユニットに潜像担持体の使用
経歴を判別する判別片を設け、使用経歴のない担持体ユ
ニットを作像装置本体に装着したとき判別片がカウンタ
のリセット部材を押圧作動させてカウンタをリセットし
、使用経歴のある担持体ユニットを装着したときはカウ
ンタをリセットしないように構成した作像装置において
、 未使用の担持体ユニットを作像装置本体に装着したとき
、判別片がカウンタのリセット部材によって曲折される
よう、該判別片を担持体ユニットの支持体に設けたこと
を特徴とする前記作像装置。[Scope of Claims] A carrier unit in which a latent image carrier and a support for supporting the latent image carrier are integrally assembled is removably attached to an image forming apparatus body,
A counter installed in the main body of the image forming apparatus measures the usage time of the latent image carrier, and a discrimination piece is provided on the carrier unit to determine the usage history of the latent image carrier, so that images can be created even if the carrier unit has no usage history. In an imaging device that is configured so that when attached to the device body, the discrimination piece presses the counter reset member to reset the counter, but does not reset the counter when a carrier unit that has been used before is attached. The image forming apparatus characterized in that the discrimination piece is provided on the support of the carrier unit so that the discrimination piece is bent by a reset member of the counter when the carrier unit is mounted on the image forming apparatus main body.
JP59204144A 1984-10-01 1984-10-01 Image forming device Pending JPS6183570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59204144A JPS6183570A (en) 1984-10-01 1984-10-01 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59204144A JPS6183570A (en) 1984-10-01 1984-10-01 Image forming device

Publications (1)

Publication Number Publication Date
JPS6183570A true JPS6183570A (en) 1986-04-28

Family

ID=16485562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59204144A Pending JPS6183570A (en) 1984-10-01 1984-10-01 Image forming device

Country Status (1)

Country Link
JP (1) JPS6183570A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349003A2 (en) * 1988-07-01 1990-01-03 Asahi Kogaku Kogyo Kabushiki Kaisha Reset mechanism for a counter for counting the number of revolutions of a photoconductive drum
JPH0268568A (en) * 1988-09-05 1990-03-08 Konica Corp Simple image forming device
US5038173A (en) * 1989-05-19 1991-08-06 Ricoh Company, Ltd. Replaceable unit determination mechanism
EP0487039A2 (en) * 1990-11-23 1992-05-27 Minolta Camera Kabushiki Kaisha Image formation cartridge
JPH0619308A (en) * 1992-06-30 1994-01-28 Fujitsu Ltd Developer cartridge and image forming device using it
EP0795794A1 (en) * 1996-03-12 1997-09-17 Brother Kogyo Kabushiki Kaisha A device for measuring life of a component unit of an image forming device
US6104889A (en) * 1998-04-06 2000-08-15 Ricoh Company, Ltd. Automatic component replacement detecting system in an image forming apparatus
EP2506087A1 (en) * 2011-03-31 2012-10-03 Brother Kogyo Kabushiki Kaisha Cartridge
EP2506088A1 (en) * 2011-03-31 2012-10-03 Brother Kogyo Kabushiki Kaisha Cartridge
US9594329B2 (en) 2014-03-31 2017-03-14 Brother Kogyo Kabushiki Kaisha Cartridge
US9599954B2 (en) 2014-03-31 2017-03-21 Brother Kogyo Kabushiki Kaisha Cartridge
US9599953B2 (en) 2014-03-31 2017-03-21 Brother Kogyo Kabushiki Kaisha Cartridge
US9599929B2 (en) 2010-03-31 2017-03-21 Brother Kogyo Kabushiki Kaisha Cartridge and image forming apparatus
US9605734B2 (en) 2013-06-28 2017-03-28 Brother Kogyo Kabushiki Kaisha Cartridge provided with movable detected body
US9606503B2 (en) 2014-03-31 2017-03-28 Brother Kogyo Kabushiki Kaisha Cartridge
US9606504B2 (en) 2013-09-20 2017-03-28 Brother Kogyo Kabushiki Kaisha Image forming device
US9606473B2 (en) 2014-03-31 2017-03-28 Brother Kogyo Kabushiki Kaisha Cartridge having detected member
US9612569B2 (en) 2014-03-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cartridge with multiple rotary members
US9612548B2 (en) 2011-11-24 2017-04-04 Brother Kogyo Labushiki Kaisha Cartridge provided with pivotable member for new product detection
US9612553B2 (en) 2013-10-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cartridge having agitator and rotary member with detected portion
US9612551B2 (en) 2010-08-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cap configuration for a toner cartridge
US9618879B2 (en) 2014-01-06 2017-04-11 Brother Kogyo Kabushiki Kaisha Developing cartridge
US9639026B2 (en) 2014-03-31 2017-05-02 Brother Kogyo Kabushiki Kaisha Cartridge with transmission gear and toothless gear
US9714696B2 (en) 2013-06-28 2017-07-25 Brother Kogyo Kabushiki Kaisha Cartridge provided with body for new product detection

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349003A2 (en) * 1988-07-01 1990-01-03 Asahi Kogaku Kogyo Kabushiki Kaisha Reset mechanism for a counter for counting the number of revolutions of a photoconductive drum
US5001733A (en) * 1988-07-01 1991-03-19 Asahi Kogaku Kogyo Kabushiki Kaisha Reset mechanism for photoconductive drum
JPH0268568A (en) * 1988-09-05 1990-03-08 Konica Corp Simple image forming device
US5038173A (en) * 1989-05-19 1991-08-06 Ricoh Company, Ltd. Replaceable unit determination mechanism
EP0487039A2 (en) * 1990-11-23 1992-05-27 Minolta Camera Kabushiki Kaisha Image formation cartridge
JPH0619308A (en) * 1992-06-30 1994-01-28 Fujitsu Ltd Developer cartridge and image forming device using it
EP0795794A1 (en) * 1996-03-12 1997-09-17 Brother Kogyo Kabushiki Kaisha A device for measuring life of a component unit of an image forming device
US5740491A (en) * 1996-03-12 1998-04-14 Brother Kogyo Kabushiki Kaisha Device for measuring life of a component unit for an image forming device
US6104889A (en) * 1998-04-06 2000-08-15 Ricoh Company, Ltd. Automatic component replacement detecting system in an image forming apparatus
US9612552B2 (en) 2010-03-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cartridge and image forming apparatus
US9599929B2 (en) 2010-03-31 2017-03-21 Brother Kogyo Kabushiki Kaisha Cartridge and image forming apparatus
US9612551B2 (en) 2010-08-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cap configuration for a toner cartridge
EP2506088A1 (en) * 2011-03-31 2012-10-03 Brother Kogyo Kabushiki Kaisha Cartridge
US8958707B2 (en) 2011-03-31 2015-02-17 Brother Kogyo Kabushiki Kaisha Cartridge detection
US8805210B2 (en) 2011-03-31 2014-08-12 Brother Kogyo Kabushiki Kaisha Use detection element for a cartridge
US8768182B2 (en) 2011-03-31 2014-07-01 Brother Kogyo Kabushiki Kaisha Cartridge detection
EP2506087A1 (en) * 2011-03-31 2012-10-03 Brother Kogyo Kabushiki Kaisha Cartridge
US9612548B2 (en) 2011-11-24 2017-04-04 Brother Kogyo Labushiki Kaisha Cartridge provided with pivotable member for new product detection
US9714696B2 (en) 2013-06-28 2017-07-25 Brother Kogyo Kabushiki Kaisha Cartridge provided with body for new product detection
US9605734B2 (en) 2013-06-28 2017-03-28 Brother Kogyo Kabushiki Kaisha Cartridge provided with movable detected body
US9606504B2 (en) 2013-09-20 2017-03-28 Brother Kogyo Kabushiki Kaisha Image forming device
US9612553B2 (en) 2013-10-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cartridge having agitator and rotary member with detected portion
US9618879B2 (en) 2014-01-06 2017-04-11 Brother Kogyo Kabushiki Kaisha Developing cartridge
US9594329B2 (en) 2014-03-31 2017-03-14 Brother Kogyo Kabushiki Kaisha Cartridge
US9612569B2 (en) 2014-03-31 2017-04-04 Brother Kogyo Kabushiki Kaisha Cartridge with multiple rotary members
US9606473B2 (en) 2014-03-31 2017-03-28 Brother Kogyo Kabushiki Kaisha Cartridge having detected member
US9606503B2 (en) 2014-03-31 2017-03-28 Brother Kogyo Kabushiki Kaisha Cartridge
US9599953B2 (en) 2014-03-31 2017-03-21 Brother Kogyo Kabushiki Kaisha Cartridge
US9639026B2 (en) 2014-03-31 2017-05-02 Brother Kogyo Kabushiki Kaisha Cartridge with transmission gear and toothless gear
US9599954B2 (en) 2014-03-31 2017-03-21 Brother Kogyo Kabushiki Kaisha Cartridge

Similar Documents

Publication Publication Date Title
JPS6183570A (en) Image forming device
US20130272727A1 (en) Developer accommodating unit, developing cartridge and image forming apparatus
JPS5961854A (en) Process cartridge and picture forming device using the same
JP6394943B2 (en) Sensor device and image forming apparatus
JP4389183B2 (en) Image forming apparatus and cartridge
US4876577A (en) Multi-component photoreceptor cartridge unit
JPH0141987B2 (en)
JP6091090B2 (en) cartridge
JPH032925Y2 (en)
JPS61129678A (en) Image forming device
US5250989A (en) Image forming apparatus having detachable process cartridge with protective transfer zone cover
JPH0141986B2 (en)
JPH023560Y2 (en)
JP2013037279A (en) Developing unit, and image forming apparatus
JP4100698B2 (en) Image forming apparatus
JP2892731B2 (en) Image forming device
US11640133B2 (en) Image forming apparatus capable of calculating deterioration quantity of photosensitive drum based on the number of rotations in contact and separation states
JP2820695B2 (en) Process cartridge
JP2977462B2 (en) Image forming device
JP2008032917A (en) Cartridge discriminating device and image forming apparatus
JPS61285467A (en) Image forming device using process cartridge and its cartridge
JP2008216485A (en) Photographic processing apparatus
JP2732087B2 (en) An electrophotographic printing device configured to be able to detect the print length of a recording medium
JP2024091176A (en) Image forming device
JPH0774932B2 (en) Electrophotographic device