JPS57100084A - Self-indentifying device for type wheel - Google Patents

Self-indentifying device for type wheel

Info

Publication number
JPS57100084A
JPS57100084A JP17655880A JP17655880A JPS57100084A JP S57100084 A JPS57100084 A JP S57100084A JP 17655880 A JP17655880 A JP 17655880A JP 17655880 A JP17655880 A JP 17655880A JP S57100084 A JPS57100084 A JP S57100084A
Authority
JP
Japan
Prior art keywords
wheel
sensor
time
type
home position
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
JP17655880A
Other languages
Japanese (ja)
Inventor
Shoji Yanagida
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 JP17655880A priority Critical patent/JPS57100084A/en
Publication of JPS57100084A publication Critical patent/JPS57100084A/en
Pending legal-status Critical Current

Links

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  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

PURPOSE: To enable miniaturization and lightening of a type wheel, by a method wherein a detecting part of a type wheel is positioned at a different position according to a type to count pulses generated during a period ranging from a home position detecting time to a time when an object to be detected is detected, and this indentifies the wheel.
CONSTITUTION: With a motor 3 started, a type wheel 1 and an encoder disc 9 start to turn. When a home position-indicating slit in a disc 9 reaches a sensor 10, a home position pulse Hp1 is emitted from the sensor 10. At that time, a home position A of the wheel 1 is also positioned facing and opposite to a magnetic sensor 8, and if an appropriate time has elapsed, a pulse WDP, detecting an iron piece 7 set to the wheel 1, is emitted from the sensor 8. During that time, a large number of slits in the disc 9 transmit a type position detecting pulse FBP from the sensor 10. Through the counting of the number of the pulses FBP between the pulses HP1 and WDP, the wheel is indentified and a printing condition corresponding to the wheel so indentified is selected.
COPYRIGHT: (C)1982,JPO&Japio
JP17655880A 1980-12-16 1980-12-16 Self-indentifying device for type wheel Pending JPS57100084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17655880A JPS57100084A (en) 1980-12-16 1980-12-16 Self-indentifying device for type wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17655880A JPS57100084A (en) 1980-12-16 1980-12-16 Self-indentifying device for type wheel

Publications (1)

Publication Number Publication Date
JPS57100084A true JPS57100084A (en) 1982-06-22

Family

ID=16015671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17655880A Pending JPS57100084A (en) 1980-12-16 1980-12-16 Self-indentifying device for type wheel

Country Status (1)

Country Link
JP (1) JPS57100084A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099657A (en) * 1983-11-07 1985-06-03 Tokyo Juki Ind Co Ltd Type body controller for printer
JPS6099658A (en) * 1983-11-07 1985-06-03 Tokyo Juki Ind Co Ltd Type body controller for printer
US4778289A (en) * 1985-04-22 1988-10-18 Ing. C. Olivetti & C., S.P.A. Rotary character-carrying member and selector device therefor for a print unit in typewriters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6099657A (en) * 1983-11-07 1985-06-03 Tokyo Juki Ind Co Ltd Type body controller for printer
JPS6099658A (en) * 1983-11-07 1985-06-03 Tokyo Juki Ind Co Ltd Type body controller for printer
US4778289A (en) * 1985-04-22 1988-10-18 Ing. C. Olivetti & C., S.P.A. Rotary character-carrying member and selector device therefor for a print unit in typewriters

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