JPS63237068A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS63237068A JPS63237068A JP62072599A JP7259987A JPS63237068A JP S63237068 A JPS63237068 A JP S63237068A JP 62072599 A JP62072599 A JP 62072599A JP 7259987 A JP7259987 A JP 7259987A JP S63237068 A JPS63237068 A JP S63237068A
- Authority
- JP
- Japan
- Prior art keywords
- process cartridge
- gear
- life
- photosensitive drum
- developing 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 57
- 230000008569 process Effects 0.000 claims abstract description 55
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
イ、発明の目的
〔産業上の利用分野〕
本発明は電子写真方式・静電記録方式等による画像形成
装置に関する。更に詳しくは、装置本体筐に対し個別に
脱着可能の２つのプロセスカートリッジを備えた画像形
成装置における現像器ニットの寿命の適確な判断を可能
にする構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention [Field of Industrial Application] The present invention relates to an image forming apparatus using an electrophotographic method, an electrostatic recording method, or the like. More specifically, the present invention relates to a structure that makes it possible to accurately determine the lifespan of a developing unit in an image forming apparatus equipped with two process cartridges that can be individually attached to and removed from an apparatus main body housing.
画像形成装置本体筐に対し個別に脱着可能の２つのプロ
セスカートリッジを備えた従来の画像形、成装置の構成
を、図面に示す電子写真複写機の例について説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a conventional image forming apparatus equipped with two process cartridges that can be individually attached to and removed from an image forming apparatus main body case will be described with reference to an example of an electrophotographic copying machine shown in the drawings.
第４図は使用状態の縦断正面図、第５図は機体内部点検
あるいはプロセスカートリッジの交換のために上部筐体
を開放した状態の縦断正面図である。FIG. 4 is a vertical sectional front view of the machine in use, and FIG. 5 is a vertical sectional front view of the machine with the upper casing opened for inspection inside the machine or for replacing the process cartridge.
図において、ｌは透明な部材よりなる原稿載置台で矢印
方向に往復動する。２は結像素子アレイで、原稿蔵置台
１上にある原稿像の光像を、像担持体としての感光ドラ
ム３上にスリット露光する。感光ドラム３は軸３ａを支
点に矢印方向に回転する。４はコロナ帯電器であり、感
光ドラム３に一様に帯電を施す、５は現像器であり、上
記のように一様に帯電された感光ドラム３に、アレイ２
により光像露光して形成した静電潜像をトナーで現像す
る。In the figure, l is a document mounting table made of a transparent member and reciprocates in the direction of the arrow. Reference numeral 2 denotes an imaging element array that slit-exposes an optical image of the original image on the original storage table 1 onto a photosensitive drum 3 as an image carrier. The photosensitive drum 3 rotates in the direction of the arrow around the shaft 3a as a fulcrum. 4 is a corona charger, which uniformly charges the photosensitive drum 3; 5 is a developing device, which applies an array 2 to the photosensitive drum 3 uniformly charged as described above;
The electrostatic latent image formed by photo-image exposure is developed with toner.
一方、転写シートＰは給送ローラ６およびレジスタロー
ラ７により感光ドラム３面に送り込まれ、転写用帯電器
８により感光ドラム３上のトナー画像の転写を受ける。On the other hand, the transfer sheet P is fed onto the surface of the photosensitive drum 3 by a feeding roller 6 and a register roller 7, and the toner image on the photosensitive drum 3 is transferred by a transfer charger 8.
その後、シートは分離手段１３によりドラム３から分離
され、ガイド９上を通って搬送路端部に位置するローラ
９ａにより定着器１０に送られる。定着器１０でシーＩ
・上のトナー像は定着され、シートは排出ローラ１１に
よりトレイ１２上に排出される。感光ドラム３上に転写
されずに残った［・ナーはクリーニング器１４により回
収される。Thereafter, the sheet is separated from the drum 3 by the separating means 13, passes over the guide 9, and is sent to the fixing device 10 by the roller 9a located at the end of the conveyance path. Seat I with fixing device 10
- The upper toner image is fixed, and the sheet is discharged onto the tray 12 by the discharge roller 11. The toner remaining on the photosensitive drum 3 without being transferred is collected by a cleaning device 14.
１５は原稿を露光する光源、１６は熱線吸収フィルタ等
のフィルタである。Reference numeral 15 represents a light source for exposing the original, and reference numeral 16 represents a filter such as a heat ray absorption filter.
上記各構成ユニットを収納した複写機本体筐は第５図に
示すように、上部筐体１７と下部筐体１８とに開放分割
可能に支軸１９で結合され、この支軸１９を中心に上部
筐体１７は上方へ回動する構成になっている。As shown in FIG. 5, the copying machine body housing housing each of the above-mentioned constituent units is connected to an upper housing 17 and a lower housing 18 by a spindle 19 so as to be able to be opened and separated. The housing 17 is configured to rotate upward.
この上部筐体１７には、露光光学系２・１５φ感光ドラ
ム３・コロナ帯電器４壷現像器５・クリーニング器１４
等の画像形成手段が配置されている。This upper housing 17 includes an exposure optical system 2, a 15φ photosensitive drum 3, a corona charger 4, a developing device 5, and a cleaning device 14.
Image forming means such as the following are arranged.
下部筐体１８には、給送ローラ６−転写帯電器８・分離
手段１３・ガイド９および定着器１０等がシート搬送経
路に従って配置されている。In the lower housing 18, a feeding roller 6, a transfer charger 8, a separating means 13, a guide 9, a fixing device 10, and the like are arranged along the sheet conveyance path.
上記画像形成手段の内、感光ド、ラム３とその周囲に位
置するプロセス手段例えばコロナ帯電器４・クリーニン
グ器１４は筐体２０に収容して−まとめにカートリッジ
化されており、これを第１プロセスカートリッジ２１と
して、上部筐体１７に対し一対のレール２３・２３に沿
って感光ドラム３の軸方向（ドラム長手方向）に、抜き
差し的に脱着可能である。Among the image forming means, the photosensitive drum 3 and process means located around it, such as a corona charger 4 and a cleaning device 14, are housed in a housing 20 and collectively formed into a cartridge. The process cartridge 21 can be inserted into and removed from the upper housing 17 along a pair of rails 23 in the axial direction of the photosensitive drum 3 (drum longitudinal direction).
更に現像器５もトナー貯留室５ａと一体にカートリッジ
化されており、これを第２プロセスカートリッジ２２と
して、第６図・第７図のように上記第１プロセスカート
リッジ２１の筐体２０に対し脱着可能である。なお、第
１プロセスカートリッジ２１を上部筐体１７に着けたま
まの状態で第２プロセスカートリッジ２２のみを外すこ
ともできる。Further, the developing device 5 is also integrated into a cartridge with the toner storage chamber 5a, and this is used as a second process cartridge 22, which can be attached and detached from the housing 20 of the first process cartridge 21 as shown in FIGS. 6 and 7. It is possible. Note that it is also possible to remove only the second process cartridge 22 while the first process cartridge 21 remains attached to the upper housing 17.
第１プロセスカートリッジ２１の主要部を成す感光ドラ
ム３は、長期間使用すると画質が劣化するもので、一定
の寿命があり、下記の寿命判断機構が設けられている。The photosensitive drum 3, which constitutes the main part of the first process cartridge 21, deteriorates in image quality when used for a long period of time, and has a certain lifespan, and is provided with the following lifespan determination mechanism.
感光ドラム３の一端面に、第６図に示すように内歯歯車
２４、およびそれにかみ合って回転する小歯車２５を備
えている。As shown in FIG. 6, one end surface of the photosensitive drum 3 is provided with an internal gear 24 and a small gear 25 that rotates while meshing with the internal gear 24.
上記小歯車２５の回転は、第８図に示すように軸２５ａ
を介して一体の小歯車２６、その歯車２６とかみ合う大
歯車２７を経て減速機２８に伝えられ、その減速機２８
の出力軸２８ａに一体に取付けた表示円板２９をごく遅
い速度で回転させるように構成されている。The rotation of the small gear 25 is caused by a shaft 25a as shown in FIG.
The signal is transmitted to the reducer 28 via the integrated small gear 26 and the large gear 27 that meshes with the gear 26, and the reduced gear 28
The display disc 29, which is integrally attached to the output shaft 28a, is configured to rotate at a very slow speed.
すなわち複写による感光ドラム３の回転に比例して表示
円板２９が極めてゆっくりと回り、その円板２９と、筐
体１７の窓３０の縁とに対応して表わした例えば矢印と
目盛を見るなどして表示円板２９の回転角度を見ること
により感光ドラム３の使用度、換言すれば感光ドラム３
の残り寿命を知ることができる。In other words, the display disc 29 rotates extremely slowly in proportion to the rotation of the photosensitive drum 3 during copying, and the user can see, for example, arrows and scales displayed in correspondence with the disc 29 and the edge of the window 30 of the housing 17. By checking the rotation angle of the display disk 29, the degree of use of the photosensitive drum 3, in other words, the degree of use of the photosensitive drum 3 can be determined.
You can know the remaining life of the
第２プロセスカートリンジ２２、すなわち現像器５の寿
命は、一般に感光ドラム３の寿命よりはるかに長い。The life of the second process cartridge 22, that is, the developing device 5, is generally much longer than the life of the photosensitive drum 3.
そこで、寿命が来た第１プロセスカートリッジ２１を新
しいものと交換する場合、第２プロセスカートリッジ２
２は、第７図のように第１プロセスカートリッジ２２か
ら分離し、第９図に示すようにトナー貯留室５ａの上面
のふた５ｂを開いてその口にトナーびん３１を逆さに立
ててトナーＴを補給することにより繰返し使用している
。Therefore, when replacing the first process cartridge 21 whose life has expired with a new one, the second process cartridge 21
2 is separated from the first process cartridge 22 as shown in FIG. 7, and as shown in FIG. It is used repeatedly by replenishing it.
トナー貯留室５ａ内の新旧のトナーＴは、手動または現
像スリーブ５Ｃに連動して回転する撹拌棒５ｄで撹拌す
ることによりｍ統して使用される。The old and new toners T in the toner storage chamber 5a are mixed and used by stirring manually or with a stirring rod 5d that rotates in conjunction with the developing sleeve 5C.
しかしながら上記第２プロセスカートリッジ２°２にも
一定の寿命はあるもので、その第２プロセスカートリッ
ジ２２の寿命は、画質の状ＩＢを見て、あるいは使用期
間によって判断していた。However, the second process cartridge 2°2 also has a certain lifespan, and the lifespan of the second process cartridge 22 has been determined by looking at the image quality IB or by the period of use.
従って判断基準が不明確であり、既に寿命が来ているの
に気付かずに使用して画質の悪いコピーを撮ることがあ
った。Therefore, the criteria for judgment are unclear, and there have been cases where the user has used the product without realizing that it has already reached the end of its lifespan and made copies with poor image quality.
本発明は上記の点に鑑み、第２プロセスカートリッジ、
すなわち現像装置の寿命が適確に判断できるようにする
ことを目的とする。In view of the above points, the present invention provides a second process cartridge,
That is, the purpose is to enable accurate judgment of the life span of the developing device.
口、発明の構成
〔問題点を解決するための手段〕
本発明は、像担持体とその周囲に配設されるプロセス手
段を一体化した第１プロセスカートリッジと、現像装置
を有する第２プロセスカートリッジを備え、第１および
第２プロセスカートリッジを装置本体液に対し個別に脱
着交換可能にした画像形成装置において、第２プロセス
カートリッジに、現像のための回転体の回転に比例した
回転状態を検知または表示する手段を設けたことを特徴
とするものである。Summary: Structure of the Invention [Means for Solving Problems] The present invention provides a first process cartridge in which an image bearing member and a process means disposed around the image carrier are integrated, and a second process cartridge having a developing device. In an image forming apparatus in which the first and second process cartridges are individually removable and replaceable with respect to the apparatus body liquid, the second process cartridge is configured to detect or detect a rotational state proportional to the rotation of a rotating body for development. The present invention is characterized in that it is provided with means for displaying.
第２プロセスカートリッジに設けた検知または表示手段
が現像スリーブの使用度を表わすので、第２プロセスカ
ートリッジの寿命を判断することができる。Since the detection or display means provided on the second process cartridge indicates the degree of usage of the developing sleeve, it is possible to determine the lifespan of the second process cartridge.
第１図は本発明の第１実施例の概略構成を示す正面図で
あり、２１は感光ドラム３を内蔵した第１プロセスカー
トリッジ、２２は現像スリーブ５Ｃ、トナー撹拌棒５ｄ
を内蔵した第２プロセスカートリッジを示している。FIG. 1 is a front view showing a schematic configuration of a first embodiment of the present invention, in which numeral 21 is a first process cartridge incorporating a photosensitive drum 3, 22 is a developing sleeve 5C, and a toner stirring rod 5d.
A second process cartridge containing a built-in process cartridge is shown.
感光ドラム３の回転に比例して表示円板２９が減速歯車
機構２５・２６・２７および減速１１２８を介して微速
回転させられるのは前記の通りである。As described above, the display disk 29 is rotated at a very slow speed in proportion to the rotation of the photosensitive drum 3 via the reduction gear mechanisms 25, 26, 27 and the reduction gear 1128.
感光ドラム３の回転は、更に該ドラム３の端部外周に形
成した歯車３２とかみ合う歯車３３に伝わり、その歯車
３３と一体のトナー撹拌棒５ｄを回転させる。The rotation of the photosensitive drum 3 is further transmitted to a gear 33 that meshes with a gear 32 formed on the outer periphery of the end of the drum 3, and rotates a toner stirring rod 5d integrated with the gear 33.
上記トナー撹拌棒５ｄと一体の歯車３３は、現像スリー
ブ５Ｃの端部外周に一体に設けた歯車３４にも同時にか
み谷っており、現像スリーブ５Ｃは感光ドラム３に連動
して回転する。The gear 33 integral with the toner stirring rod 5d is also engaged with a gear 34 integrally provided on the outer periphery of the end of the developing sleeve 5C, and the developing sleeve 5C rotates in conjunction with the photosensitive drum 3.
トナー撹拌棒５ｄの上記被動歯車３３と反対側の端部に
も歯車３５が一体に設けられており、その歯車３５は減
速機３６の入力軸上の歯車３７とかみ合っている。そし
て減速機３６の出力軸に表示円板３８が一体に取付けら
れている。A gear 35 is also integrally provided at the end of the toner stirring rod 5d opposite to the driven gear 33, and the gear 35 meshes with a gear 37 on the input shaft of the reducer 36. A display disk 38 is integrally attached to the output shaft of the reducer 36.
すなわち現像スリーブ５Ｃの回転に比例して表示円板３
８がゆっくりと回る。In other words, the display disk 3 changes in proportion to the rotation of the developing sleeve 5C.
8 rotates slowly.
感光ドラム３が寿命に達する回転回数を例えば１万回と
した場合、その１万回で第１プロセスカートリッジ２１
側の表示円板２９が１回転未満の回転をするように減速
されている。For example, if the number of rotations at which the photosensitive drum 3 reaches the end of its life is 10,000 times, the first process cartridge 21
The side display disk 29 is decelerated to rotate less than one revolution.
また現像スリーブ５Ｃが寿命に達する回転回数を例えば
２０万回とした場合、その２０万回で第２プロセスカー
トリッジ２２側の表示円板３８が１回転未満回るように
減速されている。Furthermore, if the number of rotations at which the developing sleeve 5C reaches the end of its life is, for example, 200,000 times, the speed is decelerated so that the display disk 38 on the second process cartridge 22 side rotates less than one rotation after 200,000 times.
上記第１実施例における第２プロセスカートリッジ２２
の表示円板３８は、第１プロセスカートリッジ２１側の
表示円板２９と同様に目視によって確認する構成である
が、第２図に示した第２実施例の第２プロセスカートリ
ッジ２２は、表示手段としてエンコーダ３８Ａを取付け
ている。Second process cartridge 22 in the first embodiment
The display disk 38 is configured to be visually confirmed like the display disk 29 on the first process cartridge 21 side, but the second process cartridge 22 of the second embodiment shown in FIG. An encoder 38A is installed as a.
そしてエンコーダ３８Ａを複写機本体側と電気的に接続
するためのコネクタ３９を備えている。A connector 39 is provided for electrically connecting the encoder 38A to the main body of the copying machine.
第３図は本発明の第３の実施例である。この実施例の現
像スリーブ５Ｃは、感光ドラム３から歯車３２−３４を
介して直接駆動される。そして現像スリーブ５Ｃの回転
を減速機３６を介して表示手段３８Ｂに伝える構成であ
る。FIG. 3 shows a third embodiment of the invention. The developing sleeve 5C of this embodiment is directly driven from the photosensitive drum 3 via gears 32-34. The rotation of the developing sleeve 5C is transmitted to the display means 38B via the reducer 36.
上記第３実施例の表示手段３８Ｂは光反射円板である。The display means 38B of the third embodiment is a light reflecting disk.
複写機本体側に設けた光センサ４０によって光反射円板
３８Ｂからの戻り光量の変化を検知してオン・オフさせ
るものである。An optical sensor 40 provided on the main body of the copying machine detects a change in the amount of light returned from the light reflecting disk 38B and turns it on or off.
上記第２および第３実施例の場合、現像装置である第２
プロセスカートリフジ２２の寿命を電気的に判断できる
のでその寿命が来たときの電気信号によって画像形成動
作を停止させることができるもので、画質が劣化した画
像を印字することがないという利点がある。In the case of the second and third embodiments above, the second developing device
Since the lifespan of the process cartridge 22 can be determined electrically, the image forming operation can be stopped using an electrical signal when the lifespan has reached the end, which has the advantage of not printing images with degraded image quality. .
ハ、発明の効果
本発明の画像形成装置は以上説明したように、現像装置
である第２プロセスカートリッジに、現像スリーブの回
転に比例した回転状態を検知または表示する手段を設け
たことにより、像担持体を内蔵する第・１プロセスカー
トリッジに比べてはるかに寿命が長いため、おろそかに
し勝ちだった第２プロセスカートリッジの寿命を容易且
つ適確に判断することができて、第２プロセスカートリ
ッジの交換時期を過ぎることがなくて、常に画質の良い
画像が得られるものである。C. Effects of the Invention As explained above, the image forming apparatus of the present invention is capable of producing an image by providing a means for detecting or displaying a rotational state proportional to the rotation of the developing sleeve in the second process cartridge, which is a developing device. Since the lifespan of the second process cartridge is much longer than that of the first process cartridge, which has a built-in carrier, the lifespan of the second process cartridge, which has often been neglected, can be easily and accurately determined, making it easier to replace the second process cartridge. It never expires and you can always get high quality images.
第１図は本発明の第１実施例の概略構成を示す側面図、
第２図は第２実施例の同上図、第３図は第３実施例の同
上図、第４図は従来の電子写真複写機の縦断正面図、第
５図は上部筐体を開放した状態の縦断正面図、第６図は
第１および第２プロセスカートリッジの縦断正面図、第
７図は第１プロセスカートリッジと第２プロセスカート
リッジの分離状態を示す縦断正面図、第８図は第１プロ
セスカートリッジの寿命判断機構の概略を示す側面図、
第９図は第２プロセスカートリッジに対する現像剤の補
給要領を示す縦断正面図。
１は原稿載置台、２は結像素子アレイ、３は像担持体、
４は帯電装置、５は現像装置、５ｃは現像スリーブ、５
ｄはトナー撹拌棒、８は転写用帯電器、１０は定着器、
１４はクリーニング装置、１５は原稿露光用光源、１７
は上部筐体、１８は上部筐体、２０はカートリッジ位体
、２１は第１プロセスカートリッジ、２２は第２プロセ
スカートリッジ、２９は像担持体の回転状態表示手段、
３８は現像スリーブの回転状態表示手段。FIG. 1 is a side view showing a schematic configuration of a first embodiment of the present invention;
Figure 2 is the same view of the second embodiment, Figure 3 is the same view of the third embodiment, Figure 4 is a longitudinal sectional front view of a conventional electrophotographic copying machine, and Figure 5 is a state in which the upper housing is opened. 6 is a vertical sectional front view of the first and second process cartridges, FIG. 7 is a vertical sectional front view showing the separated state of the first process cartridge and the second process cartridge, and FIG. 8 is a vertical sectional front view of the first process cartridge and the second process cartridge. A side view schematically showing a cartridge life judgment mechanism;
FIG. 9 is a longitudinal sectional front view showing how to replenish developer to the second process cartridge. 1 is a document mounting table, 2 is an imaging element array, 3 is an image carrier,
4 is a charging device, 5 is a developing device, 5c is a developing sleeve, 5
d is a toner stirring rod, 8 is a transfer charger, 10 is a fixing device,
14 is a cleaning device; 15 is a light source for exposing the original; 17
18 is an upper housing, 20 is a cartridge position, 21 is a first process cartridge, 22 is a second process cartridge, 29 is a rotation state display means for the image carrier,
Reference numeral 38 denotes a rotation state display means for the developing sleeve.
Claims (1)
一体化した第１プロセスカートリッジと、現像装置を有
する第２プロセスカートリッジを備え、第１および第２
プロセスカートリッジを装置本体筐に対し個別に脱着交
換可能にした画像形成装置において、第２プロセスカー
トリッジに、現像のための回転体の回転に比例した回転
状態を検知または表示する手段を設けたことを特徴とす
る画像形成装置。(1) A first process cartridge that integrates an image bearing member and a process means disposed around the image carrier, and a second process cartridge that has a developing device;
In an image forming apparatus in which the process cartridge can be individually attached to and replaced with respect to the apparatus main body housing, the second process cartridge is provided with a means for detecting or displaying a rotational state proportional to the rotation of the rotating body for development. Features of the image forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62072599A JPS63237068A (en) | 1987-03-26 | 1987-03-26 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62072599A JPS63237068A (en) | 1987-03-26 | 1987-03-26 | Image forming device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5129385A Division JPH0659528A (en) | 1993-05-31 | 1993-05-31 | Image forming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63237068A true JPS63237068A (en) | 1988-10-03 |
Family
ID=13494030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62072599A Pending JPS63237068A (en) | 1987-03-26 | 1987-03-26 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63237068A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6957023B2 (en) * | 2002-09-27 | 2005-10-18 | Canon Kabushiki Kaisha | Image forming apparatus, developing unit and storage medium |
| US7283769B2 (en) | 2004-02-03 | 2007-10-16 | Samsung Electronics Co., Ltd. | Detachable developing apparatus and driving apparatus of the same |
| CN107092171A (en) * | 2016-02-17 | 2017-08-25 | 佳能株式会社 | Image forming apparatus and its control method and storage medium with handle box |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55151666A (en) * | 1979-05-17 | 1980-11-26 | Toshiba Corp | Life detector of consumables in developing device |
| JPS60143360A (en) * | 1983-12-30 | 1985-07-29 | Casio Comput Co Ltd | Image forming device |
-
1987
- 1987-03-26 JP JP62072599A patent/JPS63237068A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55151666A (en) * | 1979-05-17 | 1980-11-26 | Toshiba Corp | Life detector of consumables in developing device |
| JPS60143360A (en) * | 1983-12-30 | 1985-07-29 | Casio Comput Co Ltd | Image forming device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6957023B2 (en) * | 2002-09-27 | 2005-10-18 | Canon Kabushiki Kaisha | Image forming apparatus, developing unit and storage medium |
| US7181147B2 (en) | 2002-09-27 | 2007-02-20 | Canon Kabushiki Kaisha | Image forming apparatus, developing unit and storage medium |
| US7283769B2 (en) | 2004-02-03 | 2007-10-16 | Samsung Electronics Co., Ltd. | Detachable developing apparatus and driving apparatus of the same |
| CN107092171A (en) * | 2016-02-17 | 2017-08-25 | 佳能株式会社 | Image forming apparatus and its control method and storage medium with handle box |
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