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6953294 |
Positioning apparatus installed inside a printer
According to the claimed invention, a positioning apparatus is disclosed. The positioning apparatus comprises a motor and a Scotch yoke for controlling the position of a first printer part. The...
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6921147 |
Printing apparatus
A recording apparatus can improve stability of the speed of a carriage without increasing the production cost. The recording apparatus for performing recording by discharging ink from a recording...
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6715947 |
Low rotational inertia shuttle system with a flattened sinusoidal carriage velocity
A low rotational inertia shuttle system ( 24 ) for a dot matrix line printer ( 20 ) is disclosed. The low rotational inertia shuttle system ( 24 ) includes an elongate support structure ( 26 ), a...
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6695498 |
Printer compact coil winding system
An impact printer having one or multiple lines of hammers on a hammerbank for impacting a print ribbon against a print media after release by one or more electrically energized coils in a magnetic...
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6554395 |
Print head servo and velocity controller with non-linear compensation
A print head motor control system uses a desired function of print head position versus time and a measured print head position to form an error signal. The print head controller forms a motor...
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6485207 |
Printer assembly providing tension for idler pulley
A printer assembly includes an idler pulley, a printhead carrier belt, an idler-pulley spring, and a ratchet stop. The printhead carrier belt is operatively connected to the idler pulley and...
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6431775 |
Automatic print cartridge alignment system
An automatic alignment system is used to correct the offset error of a bidirectional printing device. The positional offset between the forward printing and the backward printing is compensated by...
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6283651 |
Mounting arrangement for a print head in a printer
The invention relates to an arrangement for mounting a print head in a printer. The arrangement comprises a frame (1) to which a feeder device feeds a material to be printed which the printer will...
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6264384 |
Multi-functional apparatus having a small size and method for same
Disclosed is a multi-functional apparatus having a small size. The multi-functional apparatus according to the present invention includes a body including a section for transferring a recordable...
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6239517 |
Linear shuttle motor assembly and a controller therefor
A linear shuttle motor assembly used for reciprocally moving a printer head includes a rotor and a stator having the same mass. A loud, i.e., the printer head, is connected to the stator and a...
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6054835 |
Stepping motor control, and operating mode of such motors
A method and apparatus for operating stepping motors in a printer or copier senses temporarily changes in the moment of resistance caused by the introduction of the leading edge of the paper and...
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5918991 |
Printing apparatus and control method for pitch and motion commands
A printing apparatus and control method facilitating the development of application software that can be used with different printers when the horizontal and vertical pitches of their respective...
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5915861 |
Method and apparatus for driving a stepping motor using digital pulse trains simulating sine and cosine waves
The method for driving a stepping motor for printers comprises the generation of first pulses (16A,16B) at n levels recorded in registers and representing a simulation of sinusoidal waves. The...
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5871291 |
Recording apparatus, method and information-processing system
A recording apparatus includes: a carriage that relatively moves against a recording medium, on which a recording head for recording an image of input information on a recording region of the...
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5861726 |
Recording apparatus with a step motor controlling mechanism
An ink jet recording apparatus has a recording head mounted on a carrier which is shifted by a stepping motor in recording. The stepping motor is also utilized as a power source of a recovery...
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5857787 |
Printer and motor having a balanced buck drive
A dot matrix printer and motor having hammers forming in part a hammerbank and a counterbalance mechanically linked to the hammerbank with a link to the position of the motor. The motor includes...
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5842795 |
Printer with drive mechanism
A printer including a driving shaft having first, second and third worms for feeding a recording paper, advancing a printing ribbon, and moving a carriage, respectively. The third worm for moving...
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5832820 |
Integrally driven and balanced line printer
A dot matrix printer having a plurality of hammers on a hammerbank with a counterbalance for the hammerbank in adjacent parallel relationship to the hammerbank. The hammerbank and counterbalance...
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5644348 |
Control of print cartridge movement in an ink jet recording apparatus
An ink jet recording apparatus for recording onto a recording medium by discharging ink includes a recorder for recording on the recording medium by discharging the ink through discharge ports, a...
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5642949 |
Sheet feeding apparatus having vibration actuators
The printing apparatus or the sheet feeding apparatus disclosed here which employs vibration driven actuators as driving sources has a circuit for detecting the characteristics of the actuator...
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5628572 |
Printer apparatus having a vibrator motor
The present invention is directed to realize a portable, compact, light, thin, inexpensive and fast printer apparatus. A motor is provided between a printing head unit and a stationary frame member...
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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...
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5595448 |
Carriage shifting apparatus and serial recording system
The present invention provides a carriage shifting apparatus comprising a drive source, a suspension member suspended to transmit a driving force of the drive source, a carriage connected to the...
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5588758 |
Sheet feeding apparatus
The printing apparatus or the sheet feeding apparatus disclosed here which employs vibration driven actuators as driving sources has a circuit for detecting the characteristics of the actuator...
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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...
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5571284 |
Linear motor driven shuttle mechanism for a printer
To effectively cool a linear motor used in a shuttle mechanism of a printer and also to increase magnetic flux density used in generating thrust in the linear motor, each magnet used in the linear...
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5560723 |
Shuttle driving mechanism of printer apparatus
A shuttle mechanism of a printer apparatus wherein a balance shuttle unit is arranged on the opposite side of the print head in a print shuttle unit, for instance, on the under side of said print...
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5547296 |
Method of controlling a printhead carriage velocity of a serial printer
A method of controlling a transportation velocity of a printhead carriage of a serial printer is disclosed. The printhead carriage is driven by a motor via a timing belt. First, a characteristic...
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5547295 |
Carriage driving method and apparatus for efficiently accelerating to a constant speed
A carriage driving motor is driven with acceleration during a time period substantially equal to the half period of periodic vibration generated in a carriage in its moving direction when the...
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5544964 |
Dot line printer having a balance shuttle
Disclosed is a shuttle mechanism of a dot line printer including a printing shuttle unit making a reciprocating motion to perform dot printing and a balance shuttle unit making a motion in a...
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5529411 |
Carriage driving device in printing apparatus
Disclosed is a carriage driving device in which a rack 8 with high rigidity and gear teeth 8a at one side elongated therethrough is fixed on a bottom frame 7c in a frame 7 of a printer 1 so that...
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5484216 |
Supporting device for a vibration driven actuator
A planar auxiliary supporting member for supporting an elastic member for generating a vibration is arranged. The elastic member contacts a rail-shaped stationary member, and moves along the...
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5482388 |
Detent 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...
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5478164 |
Method of driving DC motor in printer
When a DC motor is restarted, a drive signal for the DC motor serves as a pulse signal. Even when a printer is stopped under a maximum load, the DC motor may be restarted a plurality of times, thus...
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5450106 |
Recording apparatus provided with a magnetic encoder for a scanning carriage
In a recording apparatus employing a magnetic linear encoder that includes a magnetized scale and a magnetic head movable along the scale, in order to enable efficient mounting of the scale on the...
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5445461 |
Detachable carriage drive
A carriage, preferably carrying a knife for cutting a moving web for attachment of the cut web end to a web winding roll, is driven on a supporting rail along a linear path by means of a driving...
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5434602 |
Recording apparatus with magnetic linear encoder
A recording apparatus, which is provided with a carriage supporting a recording head or reciprocating along a platen, includes a magnetized scale of a magnetic linear encoder positioned along a...
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5433541 |
Control device for controlling movement of a printing head carriage and control method for controlling the same
A carriage motor control device that uses speed determination means (3) for determining a set speed value (SN12) to be set on the basis of an aimed angle value (SN13A) indicative of an aimed...
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5431502 |
Carriage motor controller for printer
A carriage motor controller for a printer. The controller includes a drive mechanism for driving a carriage motor to thereby cause a carriage to travel; a detector for detecting a position and a...
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5427461 |
Serial printer with carriage position control
A serial printer for recording with a recording head while synchronizing with a movement of a carriage reciprocated on an apparatus body and on which the recording head is mounted. A position of a...
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5411340 |
"Milepost" single-channel encoder, scale, and method, for midscan turn around in a scanning-head printer or reader
The encoder scale has features to be automatically read by a single-channel sensor of the device to determine position of a carriage that is part of the device and moves bidirectionally across the...
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5401109 |
Shuttle type line printer
A mounting bed integral with a hammer bank is disposed parallel to a counter balancer composed of a counter balancer constituting member and a yoke. The mounting bed and the yoke are provided with...
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5372440 |
Printing machines
A printing machine wherein printing onto a substrate is effected by a first movement of a print head (1) downwardly into contact with the substrate and then by a second movement over the surface of...
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5365839 |
Shuttle printer
A shuttle printer having a print shuttle unit capable of reciprocating with a print head mounted thereon, and a balance shuttle unit capable of reciprocating to generate counterforce to momentum of...
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5338121 |
Shuttle apparatus for printer
A shuttle apparatus for a printer having a print shuttle unit driven to reciprocate. The print shuttle unit includes a print shuttle provided with a print head and movable along a guide device. A...
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5326183 |
Carriage speed control based on average dot density
Printing control includes determining printing dot density of print data to be supplied to a printing head, averaging the printing dot density during a predetermined period of time based on the...
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5312193 |
Control device for a matrix printer
A control device for a matrix printer in which the mechanical printing elements of the matrix printer are selectively triggered by the control device a certain time before they reach the desired...
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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...
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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...
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5257869 |
Print carriage positioning with normal and precision modes
In a typewriting apparatus in the invention, the carrier is driven by a stepping motor. Characters printed by this apparatus are divided into two groups, one for characters frequently used but...
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