JPS553967A - Printer - Google Patents

Printer

Info

Publication number
JPS553967A
JPS553967A JP7723678A JP7723678A JPS553967A JP S553967 A JPS553967 A JP S553967A JP 7723678 A JP7723678 A JP 7723678A JP 7723678 A JP7723678 A JP 7723678A JP S553967 A JPS553967 A JP S553967A
Authority
JP
Japan
Prior art keywords
signal
level
transistor
voltage
print head
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.)
Granted
Application number
JP7723678A
Other languages
Japanese (ja)
Other versions
JPS5915275B2 (en
Inventor
Nobuyuki Hayashida
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53077236A priority Critical patent/JPS5915275B2/en
Publication of JPS553967A publication Critical patent/JPS553967A/en
Publication of JPS5915275B2 publication Critical patent/JPS5915275B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To control the print head constantly and quickly against any fluctuation in the load and voltage by means of a speed sensor and a DC motor speed control circuit.
CONSTITUTION: A frequency signal is obtained from a pick up 7 in proportion to the movement speed of a print head 4 and amplified with an amplifier 11 to produce a signal 1. The peak of the signal 1 is determined with a peak detector 12 and the output 2 serves as a printing timing signal. A signal 2 is applied to a retriggering timer 22 to produce the output 3. A flip block 23 receives a signal 3 and outputs a signal at H a level if the signal 3 at a L level or at a L level if at a H level when the signal 2 is inputted. The signal 4 is impressed on a transistor in such a manner that the transistor is turned on at the H level. The input signal 5 to a comparator 14 is divided in the voltage when the transistor is on while remains intact when it is off.
COPYRIGHT: (C)1980,JPO&Japio
JP53077236A 1978-06-26 1978-06-26 printing device Expired JPS5915275B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53077236A JPS5915275B2 (en) 1978-06-26 1978-06-26 printing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53077236A JPS5915275B2 (en) 1978-06-26 1978-06-26 printing device

Publications (2)

Publication Number Publication Date
JPS553967A true JPS553967A (en) 1980-01-12
JPS5915275B2 JPS5915275B2 (en) 1984-04-09

Family

ID=13628221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53077236A Expired JPS5915275B2 (en) 1978-06-26 1978-06-26 printing device

Country Status (1)

Country Link
JP (1) JPS5915275B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001204594A (en) * 2000-01-28 2001-07-31 Kawajun Kk Merchandise display stand

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919865A (en) * 1972-06-13 1974-02-21
JPS5225532A (en) * 1975-08-20 1977-02-25 Ibm Printer controller
JPS5477887A (en) * 1977-11-10 1979-06-21 Ncr Co Speed control system for mobile parts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919865A (en) * 1972-06-13 1974-02-21
JPS5225532A (en) * 1975-08-20 1977-02-25 Ibm Printer controller
JPS5477887A (en) * 1977-11-10 1979-06-21 Ncr Co Speed control system for mobile parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001204594A (en) * 2000-01-28 2001-07-31 Kawajun Kk Merchandise display stand

Also Published As

Publication number Publication date
JPS5915275B2 (en) 1984-04-09

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