JPS5644984A - Print head driving system of dot printer - Google Patents

Print head driving system of dot printer

Info

Publication number
JPS5644984A
JPS5644984A JP12139379A JP12139379A JPS5644984A JP S5644984 A JPS5644984 A JP S5644984A JP 12139379 A JP12139379 A JP 12139379A JP 12139379 A JP12139379 A JP 12139379A JP S5644984 A JPS5644984 A JP S5644984A
Authority
JP
Japan
Prior art keywords
print
heads
print head
dot printer
head driving
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
JP12139379A
Other languages
Japanese (ja)
Inventor
Takeshi Nakamura
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
Epson Corp
Original Assignee
Seiko Epson Corp
Epson Corp
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, Epson Corp filed Critical Seiko Epson Corp
Priority to JP12139379A priority Critical patent/JPS5644984A/en
Publication of JPS5644984A publication Critical patent/JPS5644984A/en
Pending legal-status Critical Current

Links

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  • Printers Characterized By Their Purpose (AREA)

Abstract

PURPOSE: To make it possible to use a head driving circuit commonly, by turning on and off electric power supply to print heads of the dot printer having plural print heads alternately.
CONSTITUTION: In the print head driving circuit for ECR of the dot printer having plural print heads, the common line of the magnet coil of receipt print head 12 is connected to power source terminal 16 through transistor 14, and the common line of the magnet coil of journal print head 13 is connected to power source terminal 16 through transistor 15. Respective pring heads are selected to print by signals given to bases of transistors 14 and 15. Theerfore, magnet coil driving circuit 11 can be used commonly by both print heads. Diode 21 is provided for preventing the current from flowing reversely to heads which do not print.
COPYRIGHT: (C)1981,JPO&Japio
JP12139379A 1979-09-20 1979-09-20 Print head driving system of dot printer Pending JPS5644984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12139379A JPS5644984A (en) 1979-09-20 1979-09-20 Print head driving system of dot printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12139379A JPS5644984A (en) 1979-09-20 1979-09-20 Print head driving system of dot printer

Publications (1)

Publication Number Publication Date
JPS5644984A true JPS5644984A (en) 1981-04-24

Family

ID=14810078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12139379A Pending JPS5644984A (en) 1979-09-20 1979-09-20 Print head driving system of dot printer

Country Status (1)

Country Link
JP (1) JPS5644984A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130507A (en) * 1983-01-13 1984-07-27 Hitachi Kiden Kogyo Ltd Device for washing screen tailings
JPS59135144U (en) * 1983-02-25 1984-09-10 石川島播磨重工業株式会社 Cleaning equipment for sand, sieve residue, etc.
JPS59228952A (en) * 1983-06-10 1984-12-22 Ishikawajima Harima Heavy Ind Co Ltd Washing device for settled sand, screen residue or the like
JPS6042359U (en) * 1983-08-31 1985-03-25 石川島播磨重工業株式会社 Cleaning equipment for sand, sieve residue, etc.
JPS6049944U (en) * 1983-09-14 1985-04-08 石川島播磨重工業株式会社 Cleaning equipment for sand, sieve residue, etc.
JPS6063459U (en) * 1983-10-05 1985-05-04 石川島播磨重工業株式会社 Equipment for removing suspended matter from cleaning tanks such as sand and sieve residue
JPS6154298A (en) * 1984-08-22 1986-03-18 Nippon Kankyo Kikai Kk Apparatus for discharging deposited sand in sludge vessel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5166020A (en) * 1974-12-04 1976-06-08 Hitachi Ltd INJIKIKO
JPS5246935A (en) * 1975-10-03 1977-04-14 Ncr Co Printer
JPS541128A (en) * 1977-06-03 1979-01-06 Brother Ind Ltd Dot matrix printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5166020A (en) * 1974-12-04 1976-06-08 Hitachi Ltd INJIKIKO
JPS5246935A (en) * 1975-10-03 1977-04-14 Ncr Co Printer
JPS541128A (en) * 1977-06-03 1979-01-06 Brother Ind Ltd Dot matrix printer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59130507A (en) * 1983-01-13 1984-07-27 Hitachi Kiden Kogyo Ltd Device for washing screen tailings
JPH0325203B2 (en) * 1983-01-13 1991-04-05 Hitachi Kiden Kogyo Kk
JPS59135144U (en) * 1983-02-25 1984-09-10 石川島播磨重工業株式会社 Cleaning equipment for sand, sieve residue, etc.
JPS6341070Y2 (en) * 1983-02-25 1988-10-27
JPS59228952A (en) * 1983-06-10 1984-12-22 Ishikawajima Harima Heavy Ind Co Ltd Washing device for settled sand, screen residue or the like
JPS6357111B2 (en) * 1983-06-10 1988-11-10 Ishikawajima Harima Heavy Ind
JPS6042359U (en) * 1983-08-31 1985-03-25 石川島播磨重工業株式会社 Cleaning equipment for sand, sieve residue, etc.
JPS6344111Y2 (en) * 1983-08-31 1988-11-16
JPS6049944U (en) * 1983-09-14 1985-04-08 石川島播磨重工業株式会社 Cleaning equipment for sand, sieve residue, etc.
JPS6338915Y2 (en) * 1983-09-14 1988-10-13
JPS6063459U (en) * 1983-10-05 1985-05-04 石川島播磨重工業株式会社 Equipment for removing suspended matter from cleaning tanks such as sand and sieve residue
JPS6154298A (en) * 1984-08-22 1986-03-18 Nippon Kankyo Kikai Kk Apparatus for discharging deposited sand in sludge vessel

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