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Class Information
Number: 400/54
Name: Typewriting machines > Safety switch or condition-responsive-cutoff switch for electrically powered typewriter
Description: Subject matter wherein typewriter mechanism is driven with the help of force derived from electrical energy and wherein significance is attributed to a device for influencing a circuit through which the energy is supplied, said device being either for preventing the typist from being harmed, or for interrupting the circuit as a result or characteristic of the state of the environment or the occurrence of a predetermined event in a typewriter.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7070350 |
Image recording device |
Jul. 4, 2006 |
| 6883431 |
Safety device and method for monitoring a hazardous area that cannot be looked at in a printing machine |
Apr. 26, 2005 |
| 6734986 |
Print control apparatus, print data generating apparatus, print control method, print data generating method, and storage medium |
May. 11, 2004 |
| 6508600 |
Printer |
Jan. 21, 2003 |
| 6394675 |
Tape printing apparatus |
May. 28, 2002 |
| 6334719 |
Stencil printer having a power saving mode |
Jan. 1, 2002 |
| 6234695 |
Variable power thermal printer |
May. 22, 2001 |
| 6155731 |
Printing apparatus with cover actuated drive source |
Dec. 5, 2000 |
| 6048115 |
Printing apparatus and printing processing method |
Apr. 11, 2000 |
| 6045274 |
Power supply apparatus |
Apr. 4, 2000 |
| 5897252 |
Peripheral device control method and printing apparatus |
Apr. 27, 1999 |
| 5885010 |
Printer having forced stop function and forced stopping method |
Mar. 23, 1999 |
| 5848848 |
Battery powered printer system with self-contained high power solid state battery voltage switching |
Dec. 15, 1998 |
| 5829894 |
Data switch and data switching method for Bi-tronics printer |
Nov. 3, 1998 |
| 5826990 |
Method and device for limiting a number of times each print hammer is driven during a predetermined period of time |
Oct. 27, 1998 |
| 5803623 |
Printing system and a printing method |
Sep. 8, 1998 |
| 5800082 |
Recording apparatus and recording temperature control method |
Sep. 1, 1998 |
| 5781207 |
Ink jet recording apparatus |
Jul. 14, 1998 |
| 5720560 |
Printing apparatus |
Feb. 24, 1998 |
| 5716148 |
Data printing and outputting apparatus |
Feb. 10, 1998 |
| 5662421 |
Print speed controlled dot line printer depending on print density |
Sep. 2, 1997 |
| 5655070 |
Power fault monitoring circuit with microprocessor reset |
Aug. 5, 1997 |
| 5634728 |
Tape printing device and tape cartridge used therein having a cover with detection means |
Jun. 3, 1997 |
| 5595446 |
Printer power supply |
Jan. 21, 1997 |
| 5565757 |
Charge control apparatus and electronic apparatus provided with such a control apparatus |
Oct. 15, 1996 |
| RE35319 |
Printer accommodating two types of printing sheets |
Aug. 27, 1996 |
| 5524993 |
Automatic print speed control for a barcode printer |
Jun. 11, 1996 |
| 5501534 |
Electronic apparatus which is automatically initialized when normal operation is resumed after the apparatus has been in a low power consumption mode |
Mar. 26, 1996 |
| 5449238 |
Method for operating a recording device powered by at least one rechargeable accumulator |
Sep. 12, 1995 |
| 5437511 |
Tape printing apparatus |
Aug. 1, 1995 |
| 5431504 |
Printing apparatus with cassette |
Jul. 11, 1995 |
| 5336000 |
Thermal transfer type printer and method of rejuvenating an ink sheet employed in the printer |
Aug. 9, 1994 |
| 5307093 |
Ink jet recording method and apparatus in which the temperature of an ink jet recording heat is controlled |
Apr. 26, 1994 |
| 5302033 |
Burning damage protecting apparatus and method for a printing head in a printer |
Apr. 12, 1994 |
| 5230573 |
Printer with upstream sensor used to determine paper empty condition |
Jul. 27, 1993 |
| 5219233 |
Process for controlling the operation of a print head |
Jun. 15, 1993 |
| 5203636 |
Printing apparatus capable of distinguishing functioning abnormalities |
Apr. 20, 1993 |
| 5186550 |
Impact printer |
Feb. 16, 1993 |
| 5182583 |
Ink-jet having battery capacity detection |
Jan. 26, 1993 |
| 5171092 |
Printing apparatus that stores externally supplied fonts |
Dec. 15, 1992 |
| 5166699 |
Recording apparatus |
Nov. 24, 1992 |
| 5152623 |
Printer accommodating two types of printing sheets |
Oct. 6, 1992 |
| 5152619 |
Dot-matrix printer with dot counter and temperature sensor for efficient high-quality printing |
Oct. 6, 1992 |
| 5141346 |
Sheet feeder having automatic cut-sheet feed, continuous-form feed, and manual sheet insertion modes |
Aug. 25, 1992 |
| 5135317 |
Stationary printhead with moving platen |
Aug. 4, 1992 |
| 5133610 |
Document processing apparatus with power detection and mode setting displayed |
Jul. 28, 1992 |
| 5131769 |
Ribbon cartridge |
Jul. 21, 1992 |
| 5114252 |
Printer with protection from discharge line disconnection |
May. 19, 1992 |
| 5108204 |
Protective circuit for a printer driver |
Apr. 28, 1992 |
| 5087134 |
Method of and device for printer control |
Feb. 11, 1992 |
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