JPS57133089A - Electronic typewriter - Google Patents

Electronic typewriter

Info

Publication number
JPS57133089A
JPS57133089A JP1942481A JP1942481A JPS57133089A JP S57133089 A JPS57133089 A JP S57133089A JP 1942481 A JP1942481 A JP 1942481A JP 1942481 A JP1942481 A JP 1942481A JP S57133089 A JPS57133089 A JP S57133089A
Authority
JP
Japan
Prior art keywords
keys
control
memory
pressed down
counting
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
JP1942481A
Other languages
Japanese (ja)
Inventor
Seiji Mori
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP1942481A priority Critical patent/JPS57133089A/en
Publication of JPS57133089A publication Critical patent/JPS57133089A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

PURPOSE:To measure the speed of key operation by an operator and informing him of the results by counting clock signal of a micro processor in an electronic typewriter which is controlled by the micro-processor. CONSTITUTION:There are provided three control keys B, C, and D for measuring key operation speed besides many typing keys A on the keyboard KB. When typing keys A are being operated, information on the keys A is sent to the second control circuit CO2. When control key B is pressed down, the internal state is returned to the initial state, and the maximum value that can be calculated is set in the memory P. When the control key C is pressed down, counting action that uses the clock signal is started, and the times passed since are set on the memory T. When the control key D is pressed down, the counting is stopped, and at once the content in the memory T is outputed to the second control circuit CO2 to type.
JP1942481A 1981-02-12 1981-02-12 Electronic typewriter Pending JPS57133089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1942481A JPS57133089A (en) 1981-02-12 1981-02-12 Electronic typewriter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1942481A JPS57133089A (en) 1981-02-12 1981-02-12 Electronic typewriter

Publications (1)

Publication Number Publication Date
JPS57133089A true JPS57133089A (en) 1982-08-17

Family

ID=11998883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1942481A Pending JPS57133089A (en) 1981-02-12 1981-02-12 Electronic typewriter

Country Status (1)

Country Link
JP (1) JPS57133089A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5470140A (en) * 1977-11-11 1979-06-05 Ricoh Kk Typewriting learning device with rhythmical sound generator
JPS55115081A (en) * 1979-02-27 1980-09-04 Keiichi Hirata Device for making typing learnig text

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5470140A (en) * 1977-11-11 1979-06-05 Ricoh Kk Typewriting learning device with rhythmical sound generator
JPS55115081A (en) * 1979-02-27 1980-09-04 Keiichi Hirata Device for making typing learnig text

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