JPS6343146U - - Google Patents
Info
- Publication number
- JPS6343146U JPS6343146U JP13829886U JP13829886U JPS6343146U JP S6343146 U JPS6343146 U JP S6343146U JP 13829886 U JP13829886 U JP 13829886U JP 13829886 U JP13829886 U JP 13829886U JP S6343146 U JPS6343146 U JP S6343146U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- forming unit
- image
- lifespan
- image forming
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Description
第１図は本実施例の寿命検知装置の構成図、第
２図は本実施例の寿命検知装置を含む液晶プリン
タの概略構成図、第３図は本実施例の寿命検知装
置を含む液晶プリンタ内のドラムセツトの断面図
である。
１…液晶プリンタ（プリンタ）、４…感光体ド
ラム、６…帯電器、７…現像器、８…転写器、９
…クリーナ、９ｄ…廃トナータンク、２０…現像
部、２０ｅ…トナー濃度センサ、２１…トナーホ
ツパ、２１ｂ…トナー補給ローラ、２２…モータ
、２４…比較検知回路、２５…制御回路、２６…
表示器。
Figure 1 is a block diagram of the lifespan detection device of this embodiment, Figure 2 is a schematic diagram of a liquid crystal printer including the lifespan detection device of this embodiment, and Figure 3 is a liquid crystal printer including the lifespan detection device of this embodiment. FIG. 1...Liquid crystal printer (printer), 4...Photosensitive drum, 6...Charger, 7...Developer, 8...Transfer device, 9
...Cleaner, 9d...Waste toner tank, 20...Developing section, 20e...Toner concentration sensor, 21...Toner hopper, 21b...Toner supply roller, 22...Motor, 24...Comparison detection circuit, 25...Control circuit, 26...
display.
Claims (1)
るトナーを回収蓄積するクリーニング装置とより
成り、装置本体に対し交換可能に構成された画像
形成ユニツトの寿命検知装置において、 前記像担持体表面の静電潜像を現像する現像器
と、 該現像器内のトナー濃度を検出するトナー濃度
検出手段と、 該トナー濃度検出手段の出力によつて前記現像
器へトナーを補給するトナー補給手段と、 前記トナー補給手段の動作回数をカウントする
カウンタ手段とを有し該カウンタ手段の計数値に
より前記画像形成ユニツトの寿命を検知すること
を特徴とする画像形成ユニツトの寿命検知装置。[Claims for Utility Model Registration] In a lifespan detection device for an image forming unit, which comprises at least an image carrier and a cleaning device for collecting and accumulating toner remaining on the surface of the image carrier, and is configured to be replaceable with respect to the device body. , a developing device for developing the electrostatic latent image on the surface of the image bearing member, a toner concentration detecting means for detecting the toner concentration in the developing device, and a toner for supplying toner to the developing device based on the output of the toner concentration detecting means. A lifespan detection device for an image forming unit, comprising a toner replenishing means for replenishing toner, and a counter means for counting the number of operations of the toner replenishing means, and detecting the lifespan of the image forming unit based on the count of the counter means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13829886U JPS6343146U (en) | 1986-09-08 | 1986-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13829886U JPS6343146U (en) | 1986-09-08 | 1986-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6343146U true JPS6343146U (en) | 1988-03-23 |
Family
ID=31043149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13829886U Pending JPS6343146U (en) | 1986-09-08 | 1986-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6343146U (en) |
-
1986
- 1986-09-08 JP JP13829886U patent/JPS6343146U/ja active Pending
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