JPS5574672A - Print control unit for line printer - Google Patents

Print control unit for line printer

Info

Publication number
JPS5574672A
JPS5574672A JP14766178A JP14766178A JPS5574672A JP S5574672 A JPS5574672 A JP S5574672A JP 14766178 A JP14766178 A JP 14766178A JP 14766178 A JP14766178 A JP 14766178A JP S5574672 A JPS5574672 A JP S5574672A
Authority
JP
Japan
Prior art keywords
print
hammer
driven
digit
line
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
JP14766178A
Other languages
Japanese (ja)
Inventor
Kazuo Matsuzaki
Tsuneki Kobayashi
Shigenobu Katagiri
Hiroshige Nakano
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki 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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP14766178A priority Critical patent/JPS5574672A/en
Publication of JPS5574672A publication Critical patent/JPS5574672A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the print contrast and print shear, by taking greater the print energy of the first print hammer, after the first print hammer for each line and any hammer for the digit for a given period are not driven, in the line printer.
CONSTITUTION: The print data for one line's share from the external data source 11 is stored in the memory 12, the print letter mark of the print letter carrier 31 is detected at the detector 32, and the print letter code is sequentially compared with the content of the memory 12 and the digit address of the address control section at the comparator 14. When they are in agreement, set output is made from the print hammer control section 21 and the electromagnet 2 of the digit corresponding to the hammer drive section 17 is driven with the regulator 42. At the end of print, the timer 24 restarted starts the operation, and the output voltage of the regulator 42 is a low value during the operation time, but if it is not restarted within a given time, the output voltage changes to a high voltage and the electromagnet 2 is driven with a high voltage at the next print.
COPYRIGHT: (C)1980,JPO&Japio
JP14766178A 1978-11-30 1978-11-30 Print control unit for line printer Pending JPS5574672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14766178A JPS5574672A (en) 1978-11-30 1978-11-30 Print control unit for line printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14766178A JPS5574672A (en) 1978-11-30 1978-11-30 Print control unit for line printer

Publications (1)

Publication Number Publication Date
JPS5574672A true JPS5574672A (en) 1980-06-05

Family

ID=15435402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14766178A Pending JPS5574672A (en) 1978-11-30 1978-11-30 Print control unit for line printer

Country Status (1)

Country Link
JP (1) JPS5574672A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806031A (en) * 1986-08-15 1989-02-21 Dataproducts Corporation Uniform print density and registration in an impact printer
JPH07207767A (en) * 1994-01-14 1995-08-08 Kouji Shimizu Curving-deforming anchor
KR100346684B1 (en) * 1998-07-21 2002-09-18 삼성전자 주식회사 Printing method and apparatus therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806031A (en) * 1986-08-15 1989-02-21 Dataproducts Corporation Uniform print density and registration in an impact printer
JPH07207767A (en) * 1994-01-14 1995-08-08 Kouji Shimizu Curving-deforming anchor
KR100346684B1 (en) * 1998-07-21 2002-09-18 삼성전자 주식회사 Printing method and apparatus therefor

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