JPH0298364U

JPH0298364U -

Info

Publication number: JPH0298364U
Application number: JP512089U
Authority: JP
Priority date: 1989-01-19
Filing date: 1989-01-19
Publication date: 1990-08-06

Description

[Brief explanation of drawings]

第１〜第５図は本考案に係る画像記録装置の第
１〜第４実施例を示す図であり、第２図は第１、
第２実施例の画像記録装置の全体構成図、第２図
は第１、第２実施例の画像記録装置の要部拡大断
面図、第３図は第１〜第３実施例の搬送経路の一
部断面図、第４図は第１〜第４実施例のトナーの
凝集度を測定する凝集度測定器の斜視図、第５図
は第３実施例の画像記録装置の要部拡大断面図、
第６図は第１実施例の画像記録装置について凝集
度の異なるトナーを用いて比較した場合の凝集発
生回数とトナー凝集度の関係を示すグラフである
。１ａ，４１ａ……感光体ベルト（画像担持体）
、４……現像ユニツト、５……トナー、｛１６…
…クリーニングロール、１７……クリーニングパ
ツド、｝（クリーニング部材）、２４……回収ボ
ルト（回収タンク）、２５，５２……搬送経路、
３１……凝集度測定器、３２……上段ふるい網、
３３……中段ふるい網、３４……下段ふるい網、
４６……クリーニングブレード（クリーニング部
材）、Ｐ_１，Ｐ_２……記録紙。 1 to 5 are diagrams showing the first to fourth embodiments of the image recording apparatus according to the present invention, and FIG.
An overall configuration diagram of the image recording apparatus of the second embodiment, FIG. 2 is an enlarged sectional view of the main parts of the image recording apparatus of the first and second embodiments, and FIG. 3 is a diagram of the conveyance path of the first to third embodiments. FIG. 4 is a perspective view of an agglomeration measuring device for measuring the aggregation degree of toner according to the first to fourth embodiments, and FIG. 5 is an enlarged sectional view of main parts of the image recording apparatus of the third embodiment. ,
FIG. 6 is a graph showing the relationship between the number of occurrences of aggregation and the degree of toner aggregation when comparing toners having different degrees of aggregation in the image recording apparatus of the first embodiment. 1a, 41a...Photoreceptor belt (image carrier)
, 4...Developing unit, 5...Toner, {16...
... Cleaning roll, 17 ... Cleaning pad, } (cleaning member), 24 ... Recovery bolt (recovery tank), 25, 52 ... Transport path,
31...Agglomeration measuring device, 32...Upper sieve screen,
33...Middle sieve screen, 34...Lower sieve screen,
46...Cleaning blade (cleaning member), _P1 , _P2 ...Recording paper.

Claims

[Scope of utility model registration request]

An electrophotographic image recording apparatus that forms an image on an image carrier using toner stored in a developing unit, and transfers and records the image onto recording paper, and after the transfer, the image is transferred onto the image carrier. a cleaning member and a collection tank for collecting toner remaining on the
In the image recording apparatus, the toner stored in the developing unit is passed through a #100 mesh upper sieve screen, a #25
An image recording device characterized in that the degree of aggregation is 15 or less as measured by an agglomeration measuring device equipped with a middle sieve screen of 0 mesh and a lower sieve screen of #325 mesh.