JPS56181A - Power circuit of printer - Google Patents

Power circuit of printer

Info

Publication number
JPS56181A
JPS56181A JP7526179A JP7526179A JPS56181A JP S56181 A JPS56181 A JP S56181A JP 7526179 A JP7526179 A JP 7526179A JP 7526179 A JP7526179 A JP 7526179A JP S56181 A JPS56181 A JP S56181A
Authority
JP
Japan
Prior art keywords
turned
control circuit
printer
transistor
battery
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
JP7526179A
Other languages
Japanese (ja)
Inventor
Hideo Hirao
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP7526179A priority Critical patent/JPS56181A/en
Publication of JPS56181A publication Critical patent/JPS56181A/en
Pending legal-status Critical Current

Links

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

PURPOSE: To prevent a malfunction of the control circuit by providing a detector, which detects a drop of battery voltage, to the power circuit for the control circuit in a printer the energy source of which is a battery.
CONSTITUTION: When the switch 2 is turned on, the transistor 10 is turned on by a charge current of the capacitor 11 and a constant voltage is applied to the control circuit. When the battery voltage is dissipated and lowered from a set value due to the hammer driving, the transistor 10 is turned off, the current to the control circuit is cut off, the base current of the transistor for driving the step motor and electromagnet is also cut off, and operation of the printer is halted. Simultaneously a clock of 2Hz is developed at the output of the NOR gate 16, a clock of 32Hz modulated in 2Hz is applied across the segment and common electrodes of the liquid crystal pannel 18 in a reverse phase, and the liquid crystal panel 18 that displays the power consumption is turned on and off. Accordingly the fact that a charging is required for the battery can be displayed.
COPYRIGHT: (C)1981,JPO&Japio
JP7526179A 1979-06-15 1979-06-15 Power circuit of printer Pending JPS56181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7526179A JPS56181A (en) 1979-06-15 1979-06-15 Power circuit of printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7526179A JPS56181A (en) 1979-06-15 1979-06-15 Power circuit of printer

Publications (1)

Publication Number Publication Date
JPS56181A true JPS56181A (en) 1981-01-06

Family

ID=13571093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7526179A Pending JPS56181A (en) 1979-06-15 1979-06-15 Power circuit of printer

Country Status (1)

Country Link
JP (1) JPS56181A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204739A (en) * 1983-05-09 1984-11-20 イリノイ　ツール　ワークス　インコーポレーテッド Device for measuring rolling resistance of tire
JPS59232891A (en) * 1983-06-16 1984-12-27 Matsushita Electric Ind Co Ltd Printer apparatus
US4945551A (en) * 1985-07-19 1990-07-31 Shimadzu Corporation Soft X-ray lithographic system
EP0587385A3 (en) * 1992-09-08 1995-06-14 Canon Kk Pressure device and method for charging an existing battery.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204739A (en) * 1983-05-09 1984-11-20 イリノイ　ツール　ワークス　インコーポレーテッド Device for measuring rolling resistance of tire
JPS59232891A (en) * 1983-06-16 1984-12-27 Matsushita Electric Ind Co Ltd Printer apparatus
US4945551A (en) * 1985-07-19 1990-07-31 Shimadzu Corporation Soft X-ray lithographic system
EP0587385A3 (en) * 1992-09-08 1995-06-14 Canon Kk Pressure device and method for charging an existing battery.
US5631677A (en) * 1992-09-08 1997-05-20 Canon Kabushiki Kaisha Printing apparatus and method of charging battery therein

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