JPH0167652U - - Google Patents
Info
- Publication number
- JPH0167652U JPH0167652U JP1987160869U JP16086987U JPH0167652U JP H0167652 U JPH0167652 U JP H0167652U JP 1987160869 U JP1987160869 U JP 1987160869U JP 16086987 U JP16086987 U JP 16086987U JP H0167652 U JPH0167652 U JP H0167652U
- Authority
- JP
- Japan
- Prior art keywords
- developer
- conveyance
- toner
- developing device
- supplies
- 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
- 238000013019 agitation Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案による現像装置の実施例を示す
断面図、第２図は同上現像剤の搬送態様を説明す
るための要部の平面図、第３図は同上トナー補給
動作を説明するグラフである。
１……トナー収納部材、２，３……現像剤収納
部、４，５……撹拌搬送部材、６，７……循環領
域指定部材、８……センサ、９……現像剤担持部
材、１０……トナー層厚規制部材、１３，１４…
…隔壁。
FIG. 1 is a cross-sectional view showing an embodiment of the developing device according to the present invention, FIG. 2 is a plan view of the main parts for explaining the transport mode of the developer, and FIG. 3 is a graph for explaining the toner replenishment operation. It is. DESCRIPTION OF SYMBOLS 1... Toner storage member, 2, 3... Developer storage part, 4, 5... Agitation conveyance member, 6, 7... Circulation area designation member, 8... Sensor, 9... Developer carrying member, 10 ...Toner layer thickness regulating member, 13, 14...
...bulkhead.
Claims (1)
現像剤を用い、トナーを消費するに従つてこれを
現像剤に補給しつつ、現像剤担持部材を介して現
像剤を潜像担持面に供給するようにした画像形成
装置の現像装置において、 現像剤担持部材の長手方向に現像剤を撹拌搬送
しつつ供給する部分における現像剤搬送速度を、
トナーを現像剤に供給する部位近傍における現像
剤搬送速度よりも早くすることを特徴とする現像
装置。 (2) 撹拌搬送部材として搬送スクリユーを用い
、現像剤担持部材の長手方向に現像剤を供給する
部分の撹拌搬送部材のピツチを、トナーを現像剤
に供給する部位近傍における撹拌搬送部材のそれ
よりも大きく形成した実用新案登録請求の範囲第
１項記載の現像装置。 (3) 撹拌搬送部材として搬送スクリユーを用い
、現像剤担持部材の長手方向に現像剤を供給する
部分の撹拌搬送部材の回転数を、トナーを現像剤
に供給する部位近傍における撹拌搬送部材の回転
数よりも大きくしてなる実用新案登録請求の範囲
第１項または第２項のいずれか記載の現像装置。[Claims for Utility Model Registration] (1) Development using a two-component developer consisting of toner and a magnetic carrier, replenishing the developer as the toner is consumed, and developing via a developer carrying member. In a developing device of an image forming apparatus that supplies developer to a latent image bearing surface, the developer conveyance speed at a portion where the developer is agitated and conveyed in the longitudinal direction of the developer bearing member is expressed as follows:
A developing device characterized in that the developer conveyance speed is faster than the developer conveyance speed near a portion where toner is supplied to the developer. (2) A conveyance screw is used as the agitation conveyance member, and the pitch of the agitation conveyance member in the portion that supplies developer in the longitudinal direction of the developer carrying member is determined from that of the agitation conveyance member near the portion that supplies toner to the developer. The developing device according to Claim 1 of the Utility Model Registration Claim, which is formed to have a large size. (3) A conveyance screw is used as the agitation conveyance member, and the rotation speed of the agitation conveyance member in the portion that supplies the developer in the longitudinal direction of the developer carrying member is set to the rotation speed of the agitation conveyance member near the portion that supplies toner to the developer. 2. The developing device according to claim 1 or 2, which is larger than the number of the developing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160869U JPH0167652U (en) | 1987-10-22 | 1987-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160869U JPH0167652U (en) | 1987-10-22 | 1987-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0167652U true JPH0167652U (en) | 1989-05-01 |
Family
ID=31443314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160869U Pending JPH0167652U (en) | 1987-10-22 | 1987-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0167652U (en) |
-
1987
- 1987-10-22 JP JP1987160869U patent/JPH0167652U/ja active Pending
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