JPS6445661A - Detection mechanism of printer - Google Patents

Detection mechanism of printer

Info

Publication number
JPS6445661A
JPS6445661A JP20269587A JP20269587A JPS6445661A JP S6445661 A JPS6445661 A JP S6445661A JP 20269587 A JP20269587 A JP 20269587A JP 20269587 A JP20269587 A JP 20269587A JP S6445661 A JPS6445661 A JP S6445661A
Authority
JP
Japan
Prior art keywords
reference position
position signal
gear
detection
engaged
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
JP20269587A
Other languages
Japanese (ja)
Inventor
Masahiro Fujii
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP20269587A priority Critical patent/JPS6445661A/en
Publication of JPS6445661A publication Critical patent/JPS6445661A/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
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/48—Type carrier arrested in selected position by electromagnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)

Abstract

PURPOSE:To enable detection of a type position by means of a single detecting plate and a gate circuit with a less number of detection brushes for a reference position signal by shutting off the detection plate and the detection brushes at a constant rotational interval mechanically, using a reference position signal shutoff gear. CONSTITUTION:A detection plate 2 is engaged with a rotational shaft 9 under pressure by means of a transmission gear 3. A reference position signal shutoff gear 4 is set in a fixed shaft 1a of a frame in such a manner that said gear may be positioned over the detection plate 2. Further the reference position signal shutoff gear 4 is engaged with the transmission gear 3, so that the shutoff gear may rotate with the rotational shaft 1 and a detection plate 4 at a rotational count ratio of 1:4. A detection brush for reference position signal 5 is engaged with a protrusion of a cover 10 using caulking. An electric contact part 5a at the tip of the frame is set in touch with the detection plate 2 through a hole part 4b of the reference position signal shutoff gear 4 by fixing the cover to the frame. In addition, a cam contact part part 5b of the detection brush for reference position signal 5 is engaged with a cam part 4a of the reference position signal shutoff gear 4, and the brush 5 moves vertically by rotation of the shutoff gear 4.
JP20269587A 1987-08-14 1987-08-14 Detection mechanism of printer Pending JPS6445661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20269587A JPS6445661A (en) 1987-08-14 1987-08-14 Detection mechanism of printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20269587A JPS6445661A (en) 1987-08-14 1987-08-14 Detection mechanism of printer

Publications (1)

Publication Number Publication Date
JPS6445661A true JPS6445661A (en) 1989-02-20

Family

ID=16461626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20269587A Pending JPS6445661A (en) 1987-08-14 1987-08-14 Detection mechanism of printer

Country Status (1)

Country Link
JP (1) JPS6445661A (en)

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