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| Number | Title | Issue Date |
| 7568852 | Printer with reciprocating printhead carriage A printer including: a frame, a bearing assembly mounted to said frame, a platen rotatably supported in the bearing assembly for advancing a sheet of a recording medium, a guide rail mounted to the frame and extending in parallel with an axial direction (Y) of the p... | 08/04/2009 |
| 6547462 | Recording apparatus and recording method A recording apparatus comprises a recording head for forming an image on a recording medium, a carriage for holding the recording head, capable of scanning in a main scanning direction, and a carrying mechanism for carrying the recording medium in a sub-s... | 04/15/2003 |
| 6152626 | Recording apparatus and recording method A recording apparatus comprises a recording head for forming an image on a recording medium, a carriage for holding the recording head, capable of scanning in a main scanning direction, and a carrying mechanism for carrying the recording medium in a sub-s... | 11/28/2000 |
| 6000865 | Printing apparatus and a control method thereof The printer of the present invention prevents loss of print data due to print operation malfunction after the completion of the initialization of print head 3 by detecting error conditions related to the motion of the print head during the initialization ... | 12/14/1999 |
| 5926192 | Print control system A printer control system including a pulse signal output unit for generating a pulse signal having periods including adjacent high and low levels in a number proportional to movement amount of a carriage; a period calculation unit detecting each rising an... | 07/20/1999 |
| 5668580 | De-coupleable print position indicator A print position indicator is coupleable to and uncoupleable from a print head so that the print position indicator can continuously indicate the next print position even when the print head is not adjacent that position. The print position indicator is s... | 09/16/1997 |
| 5605407 | Printer and its control method A printer is provided comprising a carriage on which recording head is mounted. Drive mechanisms for moving carriage in reciprocating motions an encoder having openings provided contiguously in the circumferential direction at fixed intervals, attached th... | 02/25/1997 |
| 5588757 | Recording apparatus with detachable magnetic sensor A recording apparatus for performing recording uses a carriage mounted with a recording head moving along a guide shaft. The recording apparatus includes a magnetic linear encoder consisting of a scale element magnetized and a detection unit for detecting... | 12/31/1996 |
| 5575577 | Recording apparatus having position detecting device A recording apparatus of the kind arranged to perform recording by moving a carriage on which a recording head is mounted is provided with a linear encoder which consists of a linear scale part arranged in parallel to a moving route of the carriage to hav... | 11/19/1996 |
| 5476331 | Printer having print head position sensor and mechanism for inhibiting print head movement when ribbon holder is not in initial position A printer wherein a zero position sensor generates a zero-position signal and a non-zero-position signal depending upon whether the print head is placed in its zero position or not, and a print head locking mechanism is provided for permitting print head ... | 12/19/1995 |
| 5397192 | Shuttle-type printers and methods for operating same A printing system for a shuttle-type printer includes a platen and a carriage configured to move bidirectionally across the platen. An optically responsive demarcation is provided on the platen outside of the media feed path. A printhead and an optical se... | 03/14/1995 |
| 5368402 | Serial printer capable of promptly detecting abnormality in head carriage movement A movement distance monitoring pulse counter counts drive pulses being applied to a carriage-moving pulse motor, and produces a count value M. An optical sensor attached to a head carriage detects slits of a slit encoder passed by the head carriage. A sli... | 11/29/1994 |
| 5299873 | Carriage position control circuit for a serial printer A carriage position control circuit which locates a carriage at a center position of a printing sheet regardless of the paper size to maintain the printing sheet in contact with the platen. The carriage position control circuit includes a sensor (30) whic... | 04/05/1994 |
| 5297880 | Method for setting an apparatus having a sensor A method for setting an apparatus, such as a printer, wherein a sensor is mounted to sense the position of a settable detection object during operation of the apparatus. The apparatus may be set as a function of the occurrence of an output from the sensor... | 03/29/1994 |
| 5297881 | Printing machine carriage having a magnetic encoder A printing machine for printing at printing positions along a line, and for performing a positional control by linear encoder. The printing machine comprises a linear encoder memory and detecting means. The linear encoder memory has a line-shaped magnetic... | 03/29/1994 |
| 5127752 | Device and method of registering image relative to border of printed media The subject invention comprises a printer system for a serial printer having an optical sensor detection system for the alignment of images on a sheet of print media, the correction of misalignment as a result of inaccurate alignment of the print media an... | 07/07/1992 |
| 5090829 | Method and apparatus for monitoring print head carriage A print head carriage of an impact printer is monitored by means of a segmented timing member which is separate from but coupled to and movable in coordination with the carriage. The segmented timing member is associated with a carriage drive motor and pr... | 02/25/1992 |
| 5037223 | Serial printing apparatus with controllable pitch An electronic apparatus for drawing up documents. The apparatus includes an indicator for indicating registration of information, a keyboard for entering indicia and print pitch information, a memory including a first area for storing keyboard information... | 08/06/1991 |
| 4923314 | Thesaurus feature for electronic typewriters A thesaurus feature for finding synonyms of words is provided for use with electronic typewriters having electronic spelling dictionaries for storing words in a data base contained in an electronic memory. Each word in the electronic dictionary which appe... | 05/08/1990 |
| 4881840 | Printer having paper-out and column zero detection mechanism A printer has a detection mechanism for detecting the absence of paper and the end position of the printhead upon start-up and reset. The detection mechanism includes a detection lever arm that is spring loaded and operationally positioned in a normal sta... | 11/21/1989 |
| 4880325 | Ink ribbon cassette including means for identifying the type of ink ribbon contained therein and containing an ink ribbon having end indication means An improved ink ribbon cassette for a serial printing apparatus comprises a body, first and second substantially coextensive spaced ink ribbon guide arms projecting from the body, each having a free end, and an ink ribbon mounted in the body for advanceme... | 11/14/1989 |
| 4838717 | Serial dot matrix printer A serial dot matrix printer is provided with a slit encoder and an optical sensor opposed to the slit encoder. In the slit encoder, firing signal slits each having a fixed width are provided at a fixed pitch, and block signal slits each having a width sma... | 06/13/1989 |
| 4802777 | Print wheel and carriage drive system for a printer Disclosed is a printer which drives a drive motor for a type wheel or a carriage therefor by a signal derived by processing a first digital signal resulting from a position error signal and a second digital signal which is delayed by a predetermined time ... | 02/07/1989 |
| 4793723 | Mechanism for detecting end of ink ribbon in a ribbon cassette The approaching end of usable ink ribbon which is being supplied from a cassette to a serial printer is signaled when a detector member which rides on used ink ribbon as it is wound onto the take-up spool of the cassette, reaches a predetermined distance ... | 12/27/1988 |
| 4784503 | Serial dot printer with movable head-carrying carriage The carriage is displaced by a tooth belt which is moved continuously by an electric motor and is connected to the carriage be means of an element engaged between two teeth of the belt and slidable on the carriage in a direction perpendicular to the direc... | 11/15/1988 |
| 4775253 | Printer with a movable carriage and a light source mounted off the carriage for positioning a type element mounted on the carriage Impact type printer of a construction having a carriage including a character type wheel, a light source disposed outside the carriage, device for introducing light beam from the light source into the carriage such as a flexible photoconductor, a mirror, ... | 10/04/1988 |
| 4716421 | Recording apparatus A recording apparatus, such as an ink jet printer, with plural recording heads is described. Each recording head has a mark which is read by a detector to generate a corresponding signal. The signals from plural recording heads are utilized for registerin... | 12/29/1987 |
| 4615631 | Printing apparatus with means for indicating the selected printing pitch and paper advancing pitch A printing apparatus includes a power supply for supplying power thereto and a battery supply for supplying back-up battery power. A printing mechanism effects printing on a printing paper in accordance with one of a plurality of printing pitches, and a p... | 10/07/1986 |
| 4601595 | Paper sheet setting mechanism in a printer A paper sheet setting mechanism in a printer such as an ink jet system printer includes a memory device which stores a desired left setting position at which a left paper pressing roller should be positioned, and a desired right setting position at which ... | 07/22/1986 |
| 4536096 | Print head carriage mechanism including a drive belt A print head carriage assembly is provided which is especially suitable for use in a thermal dot matrix character printer. The assembly includes a belt, which in one embodiment is formed of laminations of film. The belt is formed into a loop with a free e... | 08/20/1985 |
| 4522517 | Encoder system for dot matrix line printer A linear capacitive encoder is utilized for detecting and encoding the position of a movable member such as a print bar in a dot matrix impact printer. An eight-phase signal is capacitively coupled to one plate of a linear capacitor mounted on the movable... | 06/11/1985 |
| 4518272 | Position indicator means for a high speed printer or the like Described is a controlled device such as a printer device, comprising an electrically operated mechanism such as a moveable print head, a scanner for sensing indicia of alignment of the electrically operated mechanism, and an electrical conductor to carry... | 05/21/1985 |
| 4461587 | Embossing machine having a movable carriage for character and like spacing Conveying apparatus for embossing machines for producing printing plates for address printing machines or for identification means made out of sheet metal or plastic material. The embossing machine conveying apparatus is capable of moving the printing pla... | 07/24/1984 |
| 4433925 | Manually-operated dot printer for pocket sized calculators A manually operated dot printer designed for use in a pocket sized calculator or a small sized electronic device includes a printing head which is manually movable across a sheet of printing paper in one direction. A pulse generating circuit produces a si... | 02/28/1984 |
| 4416560 | Computer printer carriage control apparatus including an encoding disk There is disclosed a carriage control apparatus for a serial, impact computer printer. The carriage control apparatus comprises an encoder disk mounted for rotation on the carriage and having a coded pattern on its periphery, a photo sensor (and associate... | 11/22/1983 |
| 4350456 | Printer provided with a margin setting mechanism A printer provided with a margin setting mechanism is disclosed which has a printing head for writing information on a recording medium, a pulse motor for scan-driving the head, a detector for detecting the position of the head to put out a detection sign... | 09/21/1982 |
| 4332492 | Device for controlling the carriage movement in a printer In a printer comprising a printing head, which is supported by a carriage, the carriage position along a record carrier is sensed at two occasions. A cooperating micro processor calculates an actual carriage speed on the basis of the position values which... | 06/01/1982 |
| 4305674 | Lateral position control means for data printer heads A rotary encoder is coupled to the drive for a printing head to detect and encode movement of the drive and produce signals therefrom which are used to control the direction and positioning of the printing head. A rotating disc-like wheel in the encoder h... | 12/15/1981 |
| 4273457 | Recording device for use with recording media of various widths A recording device is disclosed according to which writing information is recorded and the writing position in which the record head writes the information on a recording medium is detected. A discriminator determines the width of the recording medium loa... | 06/16/1981 |
| 4272204 | Automatic margin determining apparatus for a scanned sheet of paper In a typewriter environment, a carrier mounted sensor for calculating the width of a sheet of paper on the platen and for thereafter setting-up margins for that sheet of paper. In addition to supporting the sensor, the carrier supports the printhead and a... | 06/09/1981 |
