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Class 400/568 - By electric-power drive


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the incremental rotation (i.e., step-by-step
No. of patents: 127
Last issue date: 12/11/2007


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NumberTitleIssue Date
7306216Power transmitting apparatus, power switching apparatus, and driving apparatus of multi-function machine using the same
A driving apparatus of a multi-function machine includes a scanner unit scanning data recorded on a sheet of document and a document transport part to transport the sheet of document. A printer unit prints data on a sheet of paper for an output and includes a carrie...
12/11/2007
7284924Printer and control method thereof
An encoder is adapted to be opposed to a scale provided with a plurality of marks or slits arranged in a first direction at predetermined intervals. A plurality of detectors is arranged in a second direction perpendicular to the first direction while being staggered...
10/23/2007
7189018Print media drive
In a printing apparatus, in which normal printing occurs in a print zone through which a print media is moved by an input feed roller arrangement and an output overdrive roller arrangement, the desired speed of the print media is maintained during bleed printing in ...
03/13/2007
7168871Ribbon takeup device and printer with ribbon takeup device
The present invention reduces the peak torque of a motor used in a ribbon takeup mechanism and makes the motor, used for driving, smaller and less costly. A ribbon takeup device includes ratchet wheels (5) provided on ribbon takeup axes (4), a feed cla...
01/30/2007
6979080Printer having improved recording medium feeding mechanism
A printer includes a print head including nozzles that eject ink on a recording medium sheet, first and second rollers provided on a sheet feeding path for feeding the sheet therealong, a platen provided between the first and second rollers for guiding the sheet on ...
12/27/2005
6969206Tension generating mechanism for a printing apparatus
A printing apparatus includes a conveyance mechanism for conveying a web to a transfer unit, and a tension generating mechanism for applying a tension to the web fed to the conveyance mechanism, wherein the tension generating mechanism includes a tension generating ...
11/29/2005
6959822CD rack with CD holder having CD engaging projections
A high capacity motorized rack holds a plurality of jewel case enclosed CDs in holders flexibly inter-connectable with each other to form a rotatable continuous loop. The loop is rotatably retained within a vertical rack housing and is driven by a motor, disposed wi...
11/01/2005
6955267Storage and display rack for DVDs
A high capacity motorized rack holds a plurality of DVD boxes or containers in holders flexibly inter-connectable with each other to form a rotatable continuous loop. The loop is rotatably retained within a vertical rack housing and is driven by a motor, disposed wi...
10/18/2005
6915911CD rack with dual disc case holder
A high capacity motorized rack holds a plurality of jewel case enclosed CDs in holders flexibly inter-connectable with each other to form a rotatable continuous loop. The loop is rotatably retained within a vertical rack housing and is driven by a motor, disposed wi...
07/12/2005
6902070CD Rack with dual disc case holder
A high capacity motorized rack holds a plurality of jewel case enclosed CDs in holders flexibly inter-connectable with each other to form a rotatable continuous loop. The loop is rotatably retained within a vertical rack housing and is driven by a motor, disposed wi...
06/07/2005
6158857Internal drum communication using a capacitor
An ink-jet printer for ink-jet printing onto a print media. The printer has an ink-jet cartridge for ejecting ink onto a print medium during printing operations. A rotating drum platen holds a print medium on an outer surface thereof, the drum platen havi...
12/12/2000
5915865Method and apparatus for compensating for printer top-of-form and image stretch errors
An apparatus and method for controlling operation of a printer enables the transport rate of the print media to be coordinated with the print rate in order to precisely compensate for top-of-form and image stretch errors. The printer comprises a platen ro...
06/29/1999
5820275Printer multi-function drive train apparatus and method
A process motor (82) provides bidirectional motive force to a printer (50) drive train (80) that selectively engages with multiple self-homing printing functions. A print head (52) is tiltable to a maintenance position and a transfer roller (64) is loadab...
10/13/1998
5788387Tape cartidge and printing device
The present invention provides a novel structure of a tape cartridge accommodating a printing tape and an ink ribbon used for printing, which prevents the printing tape from being stuck in a cartridge case or the ink ribbon from being slackened. The tape ...
08/04/1998
5788383Recording apparatus having a single drive source for conveying recording means and feeding recording medium
A recording apparatus for recording data on a recording medium comprises: a recording device capable of moving along a passage through which a recording medium passes and recording data on the recording medium; a conveyance device for conveying the record...
08/04/1998
5779377Printing apparatus
A printing apparatus comprises: a print head comprising an array having an N (N=positive integer) number of dot forming elements arrayed at fixed pitches having a lower end and an upper end; a horizontal scan driver for moving the print head above and alo...
07/14/1998
5674019Image forming apparatus, and method thereof
In a serial page printer for printing an image line by line by scanning a printing head, even if a motor for driving a roller for conveying a printing medium is rotated by a predetermined amount, the printing medium is not conveyed by a predetermined amou...
10/07/1997
5645359Bidirectional serial printer
A serial printer is composed of a paper feeding mechanism for feeding paper, a print head having a plurality of dot printing elements arranged in a feeding direction of the paper, a head moving mechanism for moving the print head in a direction substantia...
07/08/1997
5547297Printer having a speed reduction mechanism with integral and non-integral gear ratios
A printer for printing characters and images on recording paper comprising: a paper cassette for storing the recording paper; a platen roller around which the recorrding paper is wound at the time of the transfer of images for printing; a clamping mechani...
08/20/1996
5482388Detent mechanism and gear changeover apparatus in a recording apparatus
A recording apparatus having a paper feeding device for feeding a printing sheet, a detent mechanism capable of engaging the feed roller so as to determine the feeding pitch at which the paper feeding device feeds the sheet, a ribbon feeding mechanism for...
01/09/1996
5456539Printer with dual opposing printheads
A printer has dual opposing printheads which can print in tandem on two sides of paper fed along a printing plane. The dual opposing printheads can print the same information on each side of two paper sheets fed in back-to-back (two-ply) fashion, thereby ...
10/10/1995
5433543Media feed and carriage motion mechanism for shuttle-type printers
A shuttle-type printer includes a media feed assembly to controllably transfer a recording media through a printing station and a carriage operably mounted at the printing station to move bidirectionally across the media. The printer further includes mean...
07/18/1995
5297871Paper feeding control apparatus and method for printers
A vertical forms control apparatus for a printer, and a printing method, which corrects dot pitch errors in the subscanning direction. A paper feeding control apparatus is provided with a print head scanned in a direction of paper width and having a plura...
03/29/1994
5263784Sheet feeder for printer
In a printer, a sheet feeder includes a motor which is used for a plurality of mechanisms in common so as to make the printer lighter in weight and more compact in size. The sheet feeder can vary the feeding amount of the sheet in response to the printing...
11/23/1993
5221149Type printer
A type printer has at least two colors of ink applied alternately in a column direction and is shifted in the column direction for each rotation of the type drum. The type drum is automatically halted once the drum has completed two revolutions. A selecti...
06/22/1993
5209589Apparatus and method for minimizing printer scan error
In a printer assembly including a printhead which moves in a first direction for printing on a sheet of paper, roller means having an outer cylindrical periphery that engages the sheet of paper at successive tangent points on the periphery for moving the ...
05/11/1993
5207796Electronic typewriter
An electronic typewriter (11) has a line spacing device (29) for rotating a platen roller (16) and a transport device (28) for moving a printing carriage (19) in both directions. The line spacing and transport devices are driven from a single motor (32) v...
05/04/1993
5198836Compact line thermal printer
A line thermal printer is assembled in a pair of side frames opposed to each other a given distance according to a given width size of a printing medium. A guide frame is sandwiched between the pair of side frames for guiding the printing medium. A platen...
03/30/1993
5193920Dot line printer with paper feed time controlling capability
A dot line printer with a paper feed time controlling capability includes a hammer bank accommodating a plurality of print hammers, a shuttle mechanism for shuttling the hammer bank back and forth along a print line, and a sheet feeding mechanism for feed...
03/16/1993
5184902Recording apparatus having a single drive source for conveying recording means and feeding recording medium
A recording apparatus for recording data on a recording medium including a recording device capable of moving along a passage through which a recording medium passes and recording data on the recording medium; a conveyance device for conveying the recordi...
02/09/1993
5177422Recording control system for a recording apparatus
The present invention relates to control of motor and strobe pulses in a printer which feeds a paper by a stepping motor and prints data by strobe pulses. A uniform record line density is attained by non-linearly changing currents and interval of phase ex...
01/05/1993
5160943Printing systems
The invention provides a number of improvements useful in printers which may be of the fixed, portable or hand-held types. In one aspect, the printer, which comprises a housing, a printing unit, means for feeding to said printing unit a substrate onto whi...
11/03/1992
5158376Electronic typewriter
An electronic typewriter has a reduced number of electrically-powered actuators and comprises a motor powering a differential motion transmission unit having first and second output members. Transmission control means powered by a solenoid moves a slider ...
10/27/1992
5131770Single slit disk for detecting amount of feed of sheet member
The present invention provides a detecting apparatus for detecting an amount of feed of a sheet member. Detecting apparatus comprises a feeding means for feeding a sheet member, a rotary member engaged by the sheet member and rotatingly driven by the shee...
07/21/1992
5106216Device for driving a platen and carriage of a printing machine
There is disclosed a device for driving a platen and carriage of a printing machine comprises a motor with a motor gear, a platen drive gear and a carriage drive gear, characterized in that the motor gear may be only selectively engaged with one of the pl...
04/21/1992
5024544Method and system for controlling mechanism sections of printing apparatus
Control parameters necessary for controlling mechanism sections of a printing apparatus are stored in a program ROM. Selection data used for selecting predetermined control parameters stored in the program ROM are stored in a non-volatile memory. When ope...
06/18/1991
5000594Printer with carriage-actuated clutch and paper-feed mechanism
The invented printer includes a carriage-actuated clutch and a motor-driven gear element. The clutch is selectively engageable with the element and causes the printer to perform different tasks when engaged. More specifically, the invented printer include...
03/19/1991
4986677Electronic typewriter having improved paper and ink feed mechanisms selectively driven by a single reversible motor
There is disclosed an output apparatus which prints and outputs onto an ink ribbon in an electronic typewriter or the like. One motor is commonly used for print paper feed, ribbon feed, and ribbon lift up/down operations. The ribbon feed mechanism is cont...
01/22/1991
4976555Serial printer control circuit enabling line feed during carriage deceleration
A serial printer control circuit having a motor control section which includes a single CPU, and a circuit which is controlled by the single CPU so as to perform printing in a period other than a acceleration/deceleration period of a spacing motor and per...
12/11/1990
4976557Sheet conveying device with axially disengaged transmitter of restraining force
A sheet conveying device provided with a detent mechanism and capable of effecting automatic feeding of the shet by the use of a drive source and also capable of effecting feeding of the sheet by manual operation, the sheet conveying device including a ro...
12/11/1990
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