JPS6044058U

JPS6044058U - Transfer paper separation detection device

Info

Publication number: JPS6044058U
Application number: JP13666983U
Authority: JP
Inventors: 六平　政輝
Original assignee: 株式会社リコー
Priority date: 1983-09-05
Filing date: 1983-09-05
Publication date: 1985-03-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の転写紙分離検知センサの清掃を説明する
ための記録装置要部構成図、第２図は本考案の一実施例
に係るセンサ清掃装置の説明図で、ａはその側面図、ｂ
はその上面図、第３図は第２図の構成による転写紙分離
検知動作フローチャート、第４図は第２図の構成による
転写紙分離検知タイミングチャートで、ａ、ｂは紙有り
検知動作説明図、Ｃは紙無し検知動作説明図である。１・・・感光体、２・・・レジストローラ、３・・・転
写紙、４・・・チャージャ、５・・・分離爪、６・・・
搬送ファン、７・・・搬送ベルト、８・・・定着ローラ
、９・・・分離検知センサ、９Ｂ・・・受光部、１０・
・・清掃部材。Fig. 1 is a configuration diagram of main parts of a recording device to explain cleaning of a conventional transfer paper separation detection sensor, Fig. 2 is an explanatory diagram of a sensor cleaning device according to an embodiment of the present invention, and a is a side view thereof. ,b
3 is a flowchart of the transfer paper separation detection operation with the configuration shown in FIG. 2, FIG. 4 is a timing chart of transfer paper separation detection with the configuration of FIG. 2, and a and b are explanatory diagrams of the paper presence detection operation. , C is an explanatory diagram of the paper-out detection operation. DESCRIPTION OF SYMBOLS 1... Photoreceptor, 2... Registration roller, 3... Transfer paper, 4... Charger, 5... Separation claw, 6...
Conveyance fan, 7... Conveyance belt, 8... Fixing roller, 9... Separation detection sensor, 9B... Light receiving section, 10...
...Cleaning parts.

Claims

[Scope of utility model registration request]

In a transfer paper separation detection device that optically detects separation or non-separation of a transfer paper to be transferred from a photoreceptor to a conveyor belt, a light receiving section of a transfer paper separation detection sensor is connected to a gap between the conveyor belts. In addition to being placed below the belt surface,
A cleaning member is attached to the gap between the belts, and is caused to pass over the sensor in accordance with the drive of the belt to clean the surface of the sensor light-receiving section, while the detection time at the transfer paper separation detection timing is the time when the cleaning member passes through the sensor. A transfer paper separation detection device characterized by detecting transfer paper separation by setting a longer length.