JPS5579189A - Printer - Google Patents

Printer

Info

Publication number
JPS5579189A
JPS5579189A JP15314878A JP15314878A JPS5579189A JP S5579189 A JPS5579189 A JP S5579189A JP 15314878 A JP15314878 A JP 15314878A JP 15314878 A JP15314878 A JP 15314878A JP S5579189 A JPS5579189 A JP S5579189A
Authority
JP
Japan
Prior art keywords
speed
carrier
detecting
input
abnormal
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
JP15314878A
Other languages
Japanese (ja)
Inventor
Hiroshi Aoki
Minoru Murakoshi
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 JP15314878A priority Critical patent/JPS5579189A/en
Publication of JPS5579189A publication Critical patent/JPS5579189A/en
Pending legal-status Critical Current

Links

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE: To prevent the damage of a wire of a printing head, by detecting the decrease of speed produced in the case when a tip of the wire of the printing head is caught by an obstacle, and by stopping a carrier by comparing detecting speed and abnormal speed beforehand set.
CONSTITUTION: A fixed speed from a fixed speed set instrument 11 is input, a motor 7 is started and a carrier 3 is rectilinearly moved by means of a screw shaft 2. Pulses corresponding to the travelling speed of the carrier are simultaneously put out from a pulse generator 8, a speed counter 9 counts pulse number per a fixed time interval by clock input at fixed time intervals put out from a control circuit 13, the travelling speed of the carrier is detected, and the speed and the fixed speed input from the set instrument 11 are compared by means of a comparator 10. The detecting speed is compared with abnormal speed input from an abnormal speed set instrument 12, and the motor 7 is suspended when the detecting speed is lower than the abnormal speed.
COPYRIGHT: (C)1980,JPO&Japio
JP15314878A 1978-12-13 1978-12-13 Printer Pending JPS5579189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15314878A JPS5579189A (en) 1978-12-13 1978-12-13 Printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15314878A JPS5579189A (en) 1978-12-13 1978-12-13 Printer

Publications (1)

Publication Number Publication Date
JPS5579189A true JPS5579189A (en) 1980-06-14

Family

ID=15556060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15314878A Pending JPS5579189A (en) 1978-12-13 1978-12-13 Printer

Country Status (1)

Country Link
JP (1) JPS5579189A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741970A (en) * 1980-11-21 1982-03-09 Seiko Epson Corp Small sized printer
US5087134A (en) * 1989-04-07 1992-02-11 Oki Electric Industry Co., Ltd. Method of and device for printer control
US5219233A (en) * 1989-01-12 1993-06-15 Siemens Nixdorf Informationssysteme Ag Process for controlling the operation of a print head
US7261480B2 (en) * 2004-11-23 2007-08-28 Pitney Bowes Inc. Print shaft contamination detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50139627A (en) * 1974-04-25 1975-11-08
JPS5292432A (en) * 1972-02-25 1977-08-03 Xerox Corp Device for positioning movable member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5292432A (en) * 1972-02-25 1977-08-03 Xerox Corp Device for positioning movable member
JPS50139627A (en) * 1974-04-25 1975-11-08

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741970A (en) * 1980-11-21 1982-03-09 Seiko Epson Corp Small sized printer
US5219233A (en) * 1989-01-12 1993-06-15 Siemens Nixdorf Informationssysteme Ag Process for controlling the operation of a print head
US5087134A (en) * 1989-04-07 1992-02-11 Oki Electric Industry Co., Ltd. Method of and device for printer control
US7261480B2 (en) * 2004-11-23 2007-08-28 Pitney Bowes Inc. Print shaft contamination detector

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