JPS57114983A - Print duty control system - Google Patents

Print duty control system

Info

Publication number
JPS57114983A
JPS57114983A JP125281A JP125281A JPS57114983A JP S57114983 A JPS57114983 A JP S57114983A JP 125281 A JP125281 A JP 125281A JP 125281 A JP125281 A JP 125281A JP S57114983 A JPS57114983 A JP S57114983A
Authority
JP
Japan
Prior art keywords
circuit
memory
signal
read out
print
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
JP125281A
Other languages
Japanese (ja)
Inventor
Hiroaki Miyoshi
Tetsuo Okuhara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP125281A priority Critical patent/JPS57114983A/en
Publication of JPS57114983A publication Critical patent/JPS57114983A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE:To prevent overheat of a print head, by reading out numerals for print duty adjustment corresponding to characters from a memory for accumulation, and changing the pause time of print operation according to the result for display. CONSTITUTION:When memories 2, 3 are designated for address with a signal A from a control circuit 1, the dot pattern of characters to be printed from the memory 2 is read out by one column longitudinally, and adjusting bits corresponding to each column of the dot pattern are read out from the memory 3. A bit pattern signal B read out from the memory 2 is in current-conversion at a dot pattern drive circuit 4 to drive the print head. On the other hand, an adjusting bit signal C read out from the memory 3 is inputted to an addition circuit 5, and the number of ''1'' bits is accumulated. This circuit 5 transmits a trigger signal to a timer circuit 6 when the accumulated value of print operation reaches a specified value. The circuit 1 stops the print operation when a signal D is given from the circuit 6.
JP125281A 1981-01-09 1981-01-09 Print duty control system Pending JPS57114983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP125281A JPS57114983A (en) 1981-01-09 1981-01-09 Print duty control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP125281A JPS57114983A (en) 1981-01-09 1981-01-09 Print duty control system

Publications (1)

Publication Number Publication Date
JPS57114983A true JPS57114983A (en) 1982-07-17

Family

ID=11496254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP125281A Pending JPS57114983A (en) 1981-01-09 1981-01-09 Print duty control system

Country Status (1)

Country Link
JP (1) JPS57114983A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030381A (en) * 1983-07-27 1985-02-15 Sanyo Electric Co Ltd Driving system of printing head for printer
JPS60210465A (en) * 1984-04-05 1985-10-22 Tokyo Electric Co Ltd Dot head pin driving method in dot type printer
JPS60245578A (en) * 1984-05-21 1985-12-05 Fujitsu Ltd Cooling fan controller for printer
JPS627557A (en) * 1985-07-04 1987-01-14 Brother Ind Ltd Printing duty control device for impact type dot printer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588177A (en) * 1978-12-26 1980-07-03 Fujitsu Ltd Dot printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588177A (en) * 1978-12-26 1980-07-03 Fujitsu Ltd Dot printer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030381A (en) * 1983-07-27 1985-02-15 Sanyo Electric Co Ltd Driving system of printing head for printer
JPS60210465A (en) * 1984-04-05 1985-10-22 Tokyo Electric Co Ltd Dot head pin driving method in dot type printer
JPS60245578A (en) * 1984-05-21 1985-12-05 Fujitsu Ltd Cooling fan controller for printer
JPS627557A (en) * 1985-07-04 1987-01-14 Brother Ind Ltd Printing duty control device for impact type dot printer

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