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JPS5552080A - Drum device of recorder - Google Patents

Drum device of recorder

Info

Publication number
JPS5552080A
JPS5552080A JP12478878A JP12478878A JPS5552080A JP S5552080 A JPS5552080 A JP S5552080A JP 12478878 A JP12478878 A JP 12478878A JP 12478878 A JP12478878 A JP 12478878A JP S5552080 A JPS5552080 A JP S5552080A
Authority
JP
Japan
Prior art keywords
drum
air
openings
outside
fluctuations
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
Application number
JP12478878A
Other languages
Japanese (ja)
Inventor
Hideo Abe
Minoru Ameyama
Satoru Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP12478878A priority Critical patent/JPS5552080A/en
Publication of JPS5552080A publication Critical patent/JPS5552080A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

PURPOSE:To reduce the fluctuations of gap owing to temperature differences of the inside and out of the drum by forming openings for acceleration the flow of air to the inside and out of the drum to the flange parts. CONSTITUTION:Openings 15a, 15b which communicate the inside and outside of the drum and introduce external air to the inside of the drum are formed to the end face of the drum. The shapes of the openings 15a, 15b may be any of circular, rectangular, trapezoidal, etc. and are diagonally formed so as to intersect obliquely to the central axis of the drum to permit easy entrance of the air of the drum outside into the drum through the opening 15a. As the inside and out of the drum are communicated in this way, circulation takes place right after the starting and even if heat acts upon the drum from each contact part, all parts of the drum are maintained at an approximately equal temperature by the air circulation. Hence, the deformations of the drum outside surface owing to the temperature differences of the inside and out of the drum may be reduced and gap fluctuations reduced.
JP12478878A 1978-10-09 1978-10-09 Drum device of recorder Pending JPS5552080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12478878A JPS5552080A (en) 1978-10-09 1978-10-09 Drum device of recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12478878A JPS5552080A (en) 1978-10-09 1978-10-09 Drum device of recorder

Publications (1)

Publication Number Publication Date
JPS5552080A true JPS5552080A (en) 1980-04-16

Family

ID=14894127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12478878A Pending JPS5552080A (en) 1978-10-09 1978-10-09 Drum device of recorder

Country Status (1)

Country Link
JP (1) JPS5552080A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149074A (en) * 1980-04-21 1981-11-18 Konishiroku Photo Ind Co Ltd Copying apparatus
JPS5966262U (en) * 1982-10-22 1984-05-02 日立工機株式会社 photosensitive drum
JPS61124063U (en) * 1985-01-23 1986-08-05
US6175705B1 (en) 1998-11-27 2001-01-16 Sharp Kabushiki Kaisha Image forming apparatus
US6267056B1 (en) * 1998-11-06 2001-07-31 Fischer & Krecke Gmbh & Co. Printing machine
JP2011215225A (en) * 2010-03-31 2011-10-27 Kyocera Mita Corp Photoreceptor, cooling structure for photoreceptor, and image forming apparatus equipped with the same
JP2015525892A (en) * 2012-07-05 2015-09-07 ヂュハイ サイナ テクノロジー カンパニー リミテッドZhuhai Seine Technology Co., Ltd. Photosensitive drum driving head and image forming apparatus driving mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149074A (en) * 1980-04-21 1981-11-18 Konishiroku Photo Ind Co Ltd Copying apparatus
JPS5966262U (en) * 1982-10-22 1984-05-02 日立工機株式会社 photosensitive drum
JPS61124063U (en) * 1985-01-23 1986-08-05
US6267056B1 (en) * 1998-11-06 2001-07-31 Fischer & Krecke Gmbh & Co. Printing machine
US6175705B1 (en) 1998-11-27 2001-01-16 Sharp Kabushiki Kaisha Image forming apparatus
JP2011215225A (en) * 2010-03-31 2011-10-27 Kyocera Mita Corp Photoreceptor, cooling structure for photoreceptor, and image forming apparatus equipped with the same
US8433217B2 (en) 2010-03-31 2013-04-30 Kyocera Mita Corporation Photoreceptor, cooling mechanism for photoreceptor, and image forming apparatus provided with the same
JP2015525892A (en) * 2012-07-05 2015-09-07 ヂュハイ サイナ テクノロジー カンパニー リミテッドZhuhai Seine Technology Co., Ltd. Photosensitive drum driving head and image forming apparatus driving mechanism

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