JPH01146252U - - Google Patents
Info
- Publication number
- JPH01146252U JPH01146252U JP4035188U JP4035188U JPH01146252U JP H01146252 U JPH01146252 U JP H01146252U JP 4035188 U JP4035188 U JP 4035188U JP 4035188 U JP4035188 U JP 4035188U JP H01146252 U JPH01146252 U JP H01146252U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- concentration sensor
- toner concentration
- light emitting
- light receiving
- 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
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Wet Developing In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
Description
第１図は本考案の実施例を示す斜視図、第２図
は第１図中の―線による断面図、第３図は第
１図中の―線による断面図、第４図は湿式複
写機の１例の概略構成を示す説明図、第５図は従
来の現像液トナー濃度センサの斜視図、第６図は
その欠点を説明する説明図である。
５……現像器、８……クリーニングユニツト、
１０……現像タンク、１１……ポンプ、１２，２
２……現像液供給パイプ、１５，２３……現像液
回収パイプ、２４……トナー濃度センサ、２５…
…ランプ（発光素子）、２６……ＣｄＳセル（発
光素子）、２８……ワイパ、２９……ソレノイド
、３６……クリーニングパツド。
Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Fig. 4 is a wet copy. FIG. 5 is a perspective view of a conventional developer toner concentration sensor, and FIG. 6 is an explanatory diagram illustrating its drawbacks. 5...Developer, 8...Cleaning unit,
10...Developing tank, 11...Pump, 12,2
2... Developer supply pipe, 15, 23... Developer recovery pipe, 24... Toner concentration sensor, 25...
... lamp (light emitting element), 26 ... CdS cell (light emitting element), 28 ... wiper, 29 ... solenoid, 36 ... cleaning pad.
Claims (1)
との間に現像液が循環する湿式複写機の上記現像
タンク内を流動する現像液中に設けられ、発光素
子の発光面と受光素子の受光面とが僅少な間隙を
置いて対置された光透過型トナー濃度センサにお
いて、上記トナー濃度センサの発光面及び受光面
に摺接移動する清掃手段を設けたことを特徴とす
るトナー濃度センサ。 It is provided in the developer flowing in the developer tank of a wet type copying machine in which the developer circulates between the developer tank and the developer and cleaning unit, and the light emitting surface of the light emitting element and the light receiving surface of the light receiving element are slightly different from each other. What is claimed is: 1. A toner concentration sensor, wherein the toner concentration sensor is a light transmission type toner concentration sensor that is disposed opposite to each other with a gap therebetween, and is provided with a cleaning means that slides into contact with a light emitting surface and a light receiving surface of the toner concentration sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4035188U JPH01146252U (en) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4035188U JPH01146252U (en) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146252U true JPH01146252U (en) | 1989-10-09 |
Family
ID=31266824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4035188U Pending JPH01146252U (en) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146252U (en) |
-
1988
- 1988-03-29 JP JP4035188U patent/JPH01146252U/ja active Pending
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