JPS6477563A - Automatic detecting mechanism for paper thickness - Google Patents

Automatic detecting mechanism for paper thickness

Info

Publication number
JPS6477563A
JPS6477563A JP23372687A JP23372687A JPS6477563A JP S6477563 A JPS6477563 A JP S6477563A JP 23372687 A JP23372687 A JP 23372687A JP 23372687 A JP23372687 A JP 23372687A JP S6477563 A JPS6477563 A JP S6477563A
Authority
JP
Japan
Prior art keywords
state
switch
detecting
issuing
alarm
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
JP23372687A
Other languages
Japanese (ja)
Inventor
Eiji Matsuoka
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 JP23372687A priority Critical patent/JPS6477563A/en
Priority to EP88302614A priority patent/EP0292102B1/en
Priority to ES88302614T priority patent/ES2024019B3/en
Priority to DE8888302614T priority patent/DE3863688D1/en
Publication of JPS6477563A publication Critical patent/JPS6477563A/en
Priority to US08/210,776 priority patent/US5474392A/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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
    • B41J25/3088—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms with print gap adjustment means on the printer frame, e.g. for rotation of an eccentric carriage guide shaft
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
    • B41J25/3082—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms with print gap adjustment means on the print head carriage, e.g. for rotation around a guide bar or using a rotatable eccentric bearing

Landscapes

  • Handling Of Cut Paper (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Common Mechanisms (AREA)

Abstract

PURPOSE:To prevent slackening of a ribbon, contamination or blurring of printed images from occurring and prevent a printer from being damaged, by detecting abnormal conditions such as 8 failure in a detecting switch and use of a nonstandardized thick medium by first, second and third detecting means. CONSTITUTION:A first means for recognizing whether a detecting switch 6 is in an ON state or an OFF state when a head 2 is positioned in a retracted position and for issuing an alarm when the switch 6 recognized as being in the ON state, a second means for recognizing whether the switch 6 is in the ON state or the OFF state at an intermediate point in a forward movement of the head 2 from the retracted position to such a position that an indicator 5 makes contact with a paper 100 on a platen 3 and for issuing an alarm when the switch 6 is recognized as being in the ON state, and a third means for recognizing whether the switch 6 is in the ON state or the OFF state when the head 2 is moved forward to the above-mentioned position other than the retracted position and for issuing an alarm when the switch 6 is recognized as being in the OFF state, are provided. Therefore, a failure in the switch 6 can be found out by the first, second and third means, whereas the condition where the paper is not set on the platen can be found out by the third means, while the setting of a nonstandardized thick paper can be found out by the second means.
JP23372687A 1987-03-24 1987-09-19 Automatic detecting mechanism for paper thickness Pending JPS6477563A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP23372687A JPS6477563A (en) 1987-09-19 1987-09-19 Automatic detecting mechanism for paper thickness
EP88302614A EP0292102B1 (en) 1987-03-24 1988-03-24 Device for monitoring the thickness of printing sheets in a printer
ES88302614T ES2024019B3 (en) 1987-03-24 1988-03-24 DEVICE TO CHECK THE THICKNESS OF THE PRINTER SHEETS IN A PRINTER.
DE8888302614T DE3863688D1 (en) 1987-03-24 1988-03-24 PAPER THICKNESS REGISTRATION DEVICE IN A PRINTER.
US08/210,776 US5474392A (en) 1987-03-24 1994-03-21 Device for automatically detecting thickness of printing sheet in a printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23372687A JPS6477563A (en) 1987-09-19 1987-09-19 Automatic detecting mechanism for paper thickness

Publications (1)

Publication Number Publication Date
JPS6477563A true JPS6477563A (en) 1989-03-23

Family

ID=16959607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23372687A Pending JPS6477563A (en) 1987-03-24 1987-09-19 Automatic detecting mechanism for paper thickness

Country Status (1)

Country Link
JP (1) JPS6477563A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08118761A (en) * 1994-10-26 1996-05-14 Nec Corp Printing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08118761A (en) * 1994-10-26 1996-05-14 Nec Corp Printing device

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