JPS6440867A - Transfer material separating device for image forming device - Google Patents

Transfer material separating device for image forming device

Info

Publication number
JPS6440867A
JPS6440867A JP19623387A JP19623387A JPS6440867A JP S6440867 A JPS6440867 A JP S6440867A JP 19623387 A JP19623387 A JP 19623387A JP 19623387 A JP19623387 A JP 19623387A JP S6440867 A JPS6440867 A JP S6440867A
Authority
JP
Japan
Prior art keywords
transfer
transfer material
charger
detects
current flowing
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
JP19623387A
Other languages
Japanese (ja)
Inventor
Atsushi Takeda
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP19623387A priority Critical patent/JPS6440867A/en
Publication of JPS6440867A publication Critical patent/JPS6440867A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

PURPOSE:To perform stable separating operation regardless of environmental changes, transfer material characteristics, etc., by detecting the transfer current of a transfer electrostatic charger and varying a bias applied to the grid of a separating electrostatic charger in response to the detection. CONSTITUTION:A toner image formed on the surface of an image carrier reaches the transfer position consisting of the transfer charger 3. At this time, a detecting means 7 detects the current flowing from a charging wire 3b, a detecting means 8 detects a current flowing to a shield 3a, and a detecting means 10 detects a current flowing actually to the image carrier. Thus, those currents are detected to know the potential of the image carrier after development and the potential of a transfer material after transfer. The value obtained by this means 10 is inputted to a control means 11 and a voltage controlled with its output is applied to the grid 5 provided to the separating charger 4 by a DC constant voltage power source 12. Consequently, environmental changes, differences in characteristics of the transfer material, etc., are handled and stable separating operation is performed.
JP19623387A 1987-08-07 1987-08-07 Transfer material separating device for image forming device Pending JPS6440867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19623387A JPS6440867A (en) 1987-08-07 1987-08-07 Transfer material separating device for image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19623387A JPS6440867A (en) 1987-08-07 1987-08-07 Transfer material separating device for image forming device

Publications (1)

Publication Number Publication Date
JPS6440867A true JPS6440867A (en) 1989-02-13

Family

ID=16354415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19623387A Pending JPS6440867A (en) 1987-08-07 1987-08-07 Transfer material separating device for image forming device

Country Status (1)

Country Link
JP (1) JPS6440867A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164980A (en) * 1987-12-22 1989-06-29 Ricoh Co Ltd Image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01164980A (en) * 1987-12-22 1989-06-29 Ricoh Co Ltd Image forming device

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