JPS5454635A - Electrostatic recorder - Google Patents

Electrostatic recorder

Info

Publication number
JPS5454635A
JPS5454635A JP12161977A JP12161977A JPS5454635A JP S5454635 A JPS5454635 A JP S5454635A JP 12161977 A JP12161977 A JP 12161977A JP 12161977 A JP12161977 A JP 12161977A JP S5454635 A JPS5454635 A JP S5454635A
Authority
JP
Japan
Prior art keywords
recording
humidity sensing
pulse
time
resistance value
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
JP12161977A
Other languages
Japanese (ja)
Inventor
Takashi Ezaki
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 JP12161977A priority Critical patent/JPS5454635A/en
Publication of JPS5454635A publication Critical patent/JPS5454635A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)

Abstract

PURPOSE:To enable optimum recording image quality to be obtained despite change in humidity by providing a humidity sensing means and a pulse width regulator and automatically regulating the application time of the voltage to be applied to recording electrodes in correspondence to humidities. CONSTITUTION:Prior to scan-energizing of back electrodes 31, 32, 33..., recording data for 1 line are being introduced into shift registers 8, and respective picture element data are simultaneously parallel outputted and are applied to AND gates 71, 72, 73... A multivibrator 9, triggered by shift pulses SS, produces the pulse of the time width determined by the resistance value of a humidity sensing resistor 10. Hence, switching circuits 41, 42, 43... are ON-energized only by the reference pulse CS within the pulse width of the output HPS of the monostable multivibrator 9 and while one back electrode 3i is being selectively energized by the resistance value of the humidity sensing resistor, the time for applying voltage to the recording electrode 2i opposing thereto is determined.
JP12161977A 1977-10-11 1977-10-11 Electrostatic recorder Pending JPS5454635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12161977A JPS5454635A (en) 1977-10-11 1977-10-11 Electrostatic recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12161977A JPS5454635A (en) 1977-10-11 1977-10-11 Electrostatic recorder

Publications (1)

Publication Number Publication Date
JPS5454635A true JPS5454635A (en) 1979-05-01

Family

ID=14815730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12161977A Pending JPS5454635A (en) 1977-10-11 1977-10-11 Electrostatic recorder

Country Status (1)

Country Link
JP (1) JPS5454635A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554009A (en) * 1978-06-23 1980-01-12 Hitachi Ltd Electrostatic recording system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554009A (en) * 1978-06-23 1980-01-12 Hitachi Ltd Electrostatic recording system

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