JPH01146251U - - Google Patents
Info
- Publication number
- JPH01146251U JPH01146251U JP4232588U JP4232588U JPH01146251U JP H01146251 U JPH01146251 U JP H01146251U JP 4232588 U JP4232588 U JP 4232588U JP 4232588 U JP4232588 U JP 4232588U JP H01146251 U JPH01146251 U JP H01146251U
- Authority
- JP
- Japan
- Prior art keywords
- toner
- concentration
- replenishment
- developing device
- preliminary
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の現像装置の全体概略断面図、
第２図は本考案の構成を概略的に示すブロツク図
、第３図は本考案の実施例の制御例を示すフロー
チヤートである。
２……現像器、６……トナー補給ローラ、６１
……予備トナー補給ローラ、７……トナー補給ホ
ツパー、７０……予備トナー補給ホツパー、５２
……制御手段、Ｓ１……トナー濃度検出手段、Ａ
……トナーカートリツジ。
FIG. 1 is an overall schematic sectional view of the developing device of the present invention.
FIG. 2 is a block diagram schematically showing the configuration of the present invention, and FIG. 3 is a flowchart showing a control example of the embodiment of the present invention. 2...Developer, 6...Toner supply roller, 61
... Spare toner supply roller, 7 ... Toner supply hopper, 70 ... Spare toner supply hopper, 52
...control means, S1 ...toner concentration detection means, A
...Toner cartridge.
Claims (1)
と、前記現像剤中のトナー濃度を検出するトナー
濃度検出手段とを有する現像器と、 内部にトナーを追加補充する予備トナー補給ホ
ツパーを配置したトナー補給ホツパーと、 トナー補給手段よりのトナーの補給動作を制御
するとともに、前記トナー濃度検出手段が所定濃
度以下のトナー濃度を検出した時にトナーの供給
の旨の表示信号を出力する制御手段とを具備する
現像装置において、 前記制御手段が前記トナー濃度検出手段が所定
濃度以下のトナー濃度を検出した時、予備トナー
補給ホツパーからの予備トナー補給を開始させる
とともに前記予備トナー補給ホツパー内の予備ト
ナーがなくなつた場合、本体の動作を制限させる
信号を出力することを特徴とする現像装置。[Scope of Claim for Utility Model Registration] A developing device having a magnetic roller for adsorbing and transporting developer therein, a toner concentration detection means for detecting the toner concentration in the developer, and a reserve for additionally replenishing the interior with toner. The toner replenishment hopper is arranged to control toner replenishment operations from the toner replenishment means, and to generate a display signal indicating toner supply when the toner concentration detection means detects a toner concentration below a predetermined concentration. In the developing device, the control means starts preliminary toner replenishment from a preliminary toner replenishment hopper when the toner concentration detecting means detects a toner concentration below a predetermined concentration, and also starts the preliminary toner replenishment. A developing device that outputs a signal that limits the operation of the main body when the spare toner in the hopper runs out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4232588U JPH01146251U (en) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4232588U JPH01146251U (en) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146251U true JPH01146251U (en) | 1989-10-09 |
Family
ID=31268735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4232588U Pending JPH01146251U (en) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146251U (en) |
-
1988
- 1988-03-29 JP JP4232588U patent/JPH01146251U/ja active Pending
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