JPS56123883A - Mask of impact printer - Google Patents

Mask of impact printer

Info

Publication number
JPS56123883A
JPS56123883A JP2846680A JP2846680A JPS56123883A JP S56123883 A JPS56123883 A JP S56123883A JP 2846680 A JP2846680 A JP 2846680A JP 2846680 A JP2846680 A JP 2846680A JP S56123883 A JPS56123883 A JP S56123883A
Authority
JP
Japan
Prior art keywords
printing
temperature
mask
dirty
printing drum
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.)
Granted
Application number
JP2846680A
Other languages
Japanese (ja)
Other versions
JPS62791B2 (en
Inventor
Tomohiro Otsuki
Hitoshi Mikoshiba
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
Suwa Seikosha KK
Epson Corp
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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, Suwa Seikosha KK, Epson Corp filed Critical Seiko Epson Corp
Priority to JP2846680A priority Critical patent/JPS56123883A/en
Priority to GB8103250A priority patent/GB2071015B/en
Priority to US06/241,330 priority patent/US4402261A/en
Publication of JPS56123883A publication Critical patent/JPS56123883A/en
Publication of JPS62791B2 publication Critical patent/JPS62791B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Handling Of Sheets (AREA)

Abstract

PURPOSE: To dissolve the troubles of dirty or blurred printing caused by the temperature changes by adopting heat-expansible material as a positioning means, where the position of a mask for preventing dirty printing is determined against a printing drum, in an impact printer using ink-roller.
CONSTITUTION: A mask 1 held between a printing drum 2 and recording paper 3 is fixed by a screw 11 on a frame 8 whose coefficient of linear expansion is large. At high temperature, dirty printing usually occured at this temperature, could be avoided by the fast that the step (s) between printing drum 2 and mask 1 becomes large owing to the extension of span length (l). Also, at low temperature, blurred printing usually occured at this temperature, could be avoided by the fact that the step (s) becomes small owing to the shrinkage of span length (l). Guiding pins 9, 10 are installed so as to prevent a bent of span caused by the temperature changes. Otherwise, plastic rings 12, 13 expandable by the temperature changes could be installed in alignment with the axis of printing drum 2.
COPYRIGHT: (C)1981,JPO&Japio
JP2846680A 1980-03-06 1980-03-06 Mask of impact printer Granted JPS56123883A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2846680A JPS56123883A (en) 1980-03-06 1980-03-06 Mask of impact printer
GB8103250A GB2071015B (en) 1980-03-06 1981-02-03 Printer
US06/241,330 US4402261A (en) 1980-03-06 1981-03-06 Small impact printer with hammer mask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2846680A JPS56123883A (en) 1980-03-06 1980-03-06 Mask of impact printer

Publications (2)

Publication Number Publication Date
JPS56123883A true JPS56123883A (en) 1981-09-29
JPS62791B2 JPS62791B2 (en) 1987-01-09

Family

ID=12249424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2846680A Granted JPS56123883A (en) 1980-03-06 1980-03-06 Mask of impact printer

Country Status (1)

Country Link
JP (1) JPS56123883A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820478A (en) * 1981-07-30 1983-02-05 Citizen Watch Co Ltd Smudge preventing device for printer
DE3316580C1 (en) 1983-05-06 1984-08-16 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg Device for monitoring the correct paper inlet in typewriters and similar machines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123924U (en) * 1973-02-21 1974-10-23
JPS51112602U (en) * 1975-03-07 1976-09-11
JPS5599861U (en) * 1979-01-06 1980-07-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123924U (en) * 1973-02-21 1974-10-23
JPS51112602U (en) * 1975-03-07 1976-09-11
JPS5599861U (en) * 1979-01-06 1980-07-11

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820478A (en) * 1981-07-30 1983-02-05 Citizen Watch Co Ltd Smudge preventing device for printer
JPH0115390B2 (en) * 1981-07-30 1989-03-16 Citizen Watch Co Ltd
DE3316580C1 (en) 1983-05-06 1984-08-16 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg Device for monitoring the correct paper inlet in typewriters and similar machines

Also Published As

Publication number Publication date
JPS62791B2 (en) 1987-01-09

Similar Documents

Publication Publication Date Title
JPS5288031A (en) Tranfer auxiliary means for electrophotographic copying machine
JPS5312330A (en) Color printer and control of its exposure time
JPS56123883A (en) Mask of impact printer
JPS5436721A (en) Treatment of photographic photosensitive paper
JPS5331804A (en) Process for decolorizing printed ink on high grade used paper at low temperature
DE68924541T2 (en) Circuit mechanism for a pinch roller of a printer.
JPS5397427A (en) Ink jet printer
JPS52131730A (en) Toner image heat fixing device
JPS5296546A (en) Fixing roller
JPS5384724A (en) Color printer
JPS5685150A (en) Automatic printing device
JPS5363923A (en) Printer control device
JPS52111718A (en) Printing apparatus for repeated order
JPS5226836A (en) Liquid supply process for the toner image fixing means
JPS5359426A (en) Electrostatic recording paper base
JPS5640581A (en) Forgery protection printed matter
JPS5357922A (en) Print positioning system of printers
JPS56123886A (en) Small-sized printer
JPS57152981A (en) Electronic device
JPS5282129A (en) Automatic printing unit for record sheet
JPS5245223A (en) Print starting administration system of printing medium
JPS56123884A (en) Small-sized printer
JPS5333159A (en) Recorder
JPS5327A (en) Data input unit
JPS56123885A (en) Small-sized printer