JPS6390273U

JPS6390273U -

Info

Publication number: JPS6390273U
Application number: JP18407286U
Authority: JP
Priority date: 1986-11-29
Filing date: 1986-11-29
Publication date: 1988-06-11

Description

[Brief explanation of the drawing]

第１図は画像形成装置の画像処理部の要部を示
す概略図、第２図はフロート付近の断面図、第３
図はトナー回収容器の平面図、第４図は電気構成
の要部を示すブロツク図、第５図はハウジングの
抜き取り検出手順を示すフローチヤート、第６図
はハウジング抜き取りに伴う光学的スイツチの検
出信号タイミングチヤート、第７図はハウジング
装着後、クリーニングを行なうまでの手順を示す
フローチヤート、第８図はハウジングの装着に伴
う光学的スイツチの検出信号タイミングチヤート
。１…感光体ドラム、３２…トナー回収容器、３
４…オーバーフロー検出スイツチ、３７…クリー
ニングブレード、３９…スイツチ作動部材として
の遮光板。 Fig. 1 is a schematic diagram showing the main parts of the image processing section of the image forming apparatus, Fig. 2 is a sectional view of the vicinity of the float, and Fig. 3
The figure is a plan view of the toner collection container, Figure 4 is a block diagram showing the main parts of the electrical configuration, Figure 5 is a flowchart showing the procedure for detecting removal of the housing, and Figure 6 is the detection of the optical switch accompanying removal of the housing. Signal timing chart. Fig. 7 is a flowchart showing the procedure from mounting the housing to cleaning. Fig. 8 is a timing chart of detection signals of the optical switch accompanying mounting of the housing. 1... Photosensitive drum, 32... Toner collection container, 3
4... Overflow detection switch, 37... Cleaning blade, 39... Light shielding plate as a switch operating member.

Claims

[Scope of utility model registration request]

At least the photoreceptor drum, the toner collection container for collecting toner adhering to the photoreceptor drum surface, and the cleaning blade are integrated into a unit that can be removed at the same time, and it is detected when the amount of toner collected in the toner collection container reaches a predetermined amount. The image forming apparatus is equipped with an optical overflow detection switch, which is provided with a switch operating member at a predetermined position of the unit, which operates the overflow detection switch as the unit moves when the unit is attached or detached; Based on the operation signal of the overflow detection switch activated by the above-mentioned switch operation member, toner is attached to the photoreceptor drum surface with the cleaning blade separated from the photoreceptor drum surface before starting the next image forming operation. and at least after the attached toner reaches the cleaning blade, an initial operation performing means for performing an initial operation of bringing the cleaning blade into pressure contact with the surface of the photoreceptor drum.