JPS5693577A - Controlling method for printer - Google Patents

Controlling method for printer

Info

Publication number
JPS5693577A
JPS5693577A JP17241779A JP17241779A JPS5693577A JP S5693577 A JPS5693577 A JP S5693577A JP 17241779 A JP17241779 A JP 17241779A JP 17241779 A JP17241779 A JP 17241779A JP S5693577 A JPS5693577 A JP S5693577A
Authority
JP
Japan
Prior art keywords
motor
circuit
rotation
current
resetting
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
JP17241779A
Other languages
Japanese (ja)
Inventor
Yoshikuni Tatara
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17241779A priority Critical patent/JPS5693577A/en
Publication of JPS5693577A publication Critical patent/JPS5693577A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To set a home position surely at a printing position by stopping the rotation of a motor by means of a sensor detecting the home position on a type wheel and by resetting a current-position counter in a type selection controlling circuit at zero.
CONSTITUTION: When a bar member 14, following up the rotation of the motor 10, rotates to the position of a photosensor 15 and the output level of the sensor 15 is changed sharply, an AND circuit 25 is turned on by the differential output of a differential circuit 24 and a flip-flop 21 is returned to the state of resetting through the intermediary of a one-shot multiplier 26. A motor driving circuit 22 is deactuated and the rotation of the motor 10 is stopped immediately. At this time, the home position is in the printing position, and a character just printed can be confirmed visually. A current-position counter built in the type selection controlling circuit 27 is reset forcedly at zero and, when an error in selection occurs by the temporary false operation of the current-position counter, it is corrected at every visible operation.
COPYRIGHT: (C)1981,JPO&Japio
JP17241779A 1979-12-27 1979-12-27 Controlling method for printer Pending JPS5693577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17241779A JPS5693577A (en) 1979-12-27 1979-12-27 Controlling method for printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17241779A JPS5693577A (en) 1979-12-27 1979-12-27 Controlling method for printer

Publications (1)

Publication Number Publication Date
JPS5693577A true JPS5693577A (en) 1981-07-29

Family

ID=15941568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17241779A Pending JPS5693577A (en) 1979-12-27 1979-12-27 Controlling method for printer

Country Status (1)

Country Link
JP (1) JPS5693577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59145170A (en) * 1983-02-09 1984-08-20 Canon Inc Printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59145170A (en) * 1983-02-09 1984-08-20 Canon Inc Printer

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