Abstract: The present invention comprises a mechanism for incrementally rotating a plotter carousel holding a plurality of pens around its perimeter. The rotational increments of the carousel are spaced to present any of the plurality of pens to a drawing arm on the plotter, or other graphics. A non-servo, non-stepper electric motor, such as a DC motor commonly used in slot cars, provides the rotational power to rotate the carousel. A control device switches the motor on or off with an output connected to the base of a driver connected between the power supply and the motor. The motor, when on, rotates an incremental indexing mechanism that in turn rotates the carousel in increments, each increment being a fraction of one full rotation. A switch is provided which detects that the carousel has been rotated one increment.

Abstract: An automatic lead pencil device has a casing which is releasably mountable in a bracket of a drafting machine. Within the casing, there is a clamp sleeve in which a clamping member is axially movable for clamping and releasing a lead during use of the pencil device. An axial movable lead guide tube projects outwardly of the casing in the rest position, and there is a pencil brake within the lead guide tube. The contact zone between the clamping member and the clamp sleeve is constructed so as to be of the non-self-locking type. There is an operative connection between the clamping member and the lead guide tube such that the clamping member is closed when the lead guide tube moves axially inwardly to assume the working position and opens when the lead guide tube moves axially outwardly toward a rest position.

Abstract: A moveable pen carriage for use in a graphic recording system supports a plurality of recording pens in a linear array together with means for selectively engaging any one of the plurality of pens. Means are provided for imparting the desired motion to the pen carriage as well as the media upon which the recording is made. A pen carriage suspension system comprises a pair of wheel supports, each supporting a pair of grooved wheels which engage the upper and lower tracks within the pen carriage track system. Flexible members within the wheel supports provide resilient compensation for variations in track spacing while maintaining the correct angular position of the pen carriage.

Abstract: A method and apparatus for providing automatic paper edge finding and sizing in a graphics plotter system having a platen over which paper is moved longitudinally to create one axis, penholding apparatus moved transversely across the platen and the paper to create the other axis, and a controlled raising and lowering mechanism connected to the penholding apparatus for lowering a pen being held therein into contact with, for raising it from contact with the paper, and for providing a relative vertical position value signal. Vertical sensing apparatus is connected to the penholding apparatus for sensing the top surface of the platen. First logic is operably connected to the vertical sensing apparatus and to receive the vertical position value signal from the controlled raising and lowering mechanism for calculating and saving a plurality of values indicating the distance to the platen top surface at a plurality of spaced points across the platen.

Abstract: A device for recording of information in the form of characters or symbols onto an information carrier. A recording device of the matrix type (13) is rotatable around an axis perpendicular to a column of the matrix.The recording device is arranged for relative movement relative the actual information carrier and means are arranged for actuating the matrix for information recording in the movement direction dependent on the angle between a matrix column and the movement direction.A sensor arrangement is rotatable together with the matrix column and has means for detecting of at least the parameters relative movement direction, relative speed and said angle.A single processing unit is arranged for controlling the character recording in said predetermined manner dependent on said parameters.

Abstract: A calligraphic writing system of the type including an x-y plotter, a writing pen and a digital computer that controls the movement of the pen relative to the writing bed of the plotter. The system self-aligns the writing pen and items on the bed being written, and permits a number of items to be correctly positioned on the writing bed and to be written during a single cycle. The pen draws positioning marks on the writing bed, thereby insuring that the item(s) to be written on and the pen are properly aligned relative to each other. In embodiments in which a plurality of items (all of which may or may not be the same) may be written in one cycle, the computer determines how many sets can be placed on the writing bed at once, and draws positioning marks for each item of each complete set that will so fit.

Abstract: A following error limit system is operative within a graphic recording system having a pen carriage moveable along a first path and a media moveable along a second path. A closed loop servo system is operative upon the pen carriage motor and is controlled by a position information processor. A following error processor is coupled to the servo system and compiles a periodically sampled table of absolute position, commanded position and following error for the servo system during the initialization process. The carriage is moved in a first direction at a constant velocity until it impacts a fixed limit stop which impeads further carriage motion. The following error processor determines the absolute or limit position of the pen carriage on the basis of the information derived from the servo system. The system functions without the use of external limit switches and limit detectors.

Abstract: An automatic pen positioning system is operative within a graphic recording system having a plurality of recording pens moveably supported by a pen carriage. The pen carriage is moveable along a first path above a media which is moveable along a second path. A motor drive system moves a selected one of the plurality of pens into contact with the media during recording. A closed loop servo system is operative upon the pen motor drive and is controlled by a position information processor. A following error processor is coupled to the servo system and compiles a periodically sampled table of absolute position, commanded position and following error for the servo system during the initialization process in which each pen is moved toward the media at a constant velocity until it impacts the media impeading further pen motion. The following error processor determines the pen to media contact position of the engaged pen on the basis of the information derived from the servo system.

Abstract: Thermal inkjet printhead temperature control is provided in a temperature control system responsive to printhead temperature, which in the presence of printhead overheating selectively causes the printhead to stand idle, or, if multiple nozzles are available, shifts to a nozzle which, is not overheated, which in the event a nozzle is unused for some time and the dye transport agent may have evaporated leaving a viscous plug in the nozzle, employs warm up pulsing and/or nozzle spitting to clear the nozzles, and which when the temperatures of the nozzle is below acceptable printing temperatures, employs nozzle pulsing for warm up and/or nozzle spitting to clear the nozzles, all such decisions and actions being provided in advance of beginning a printing operation.

Abstract: A calligraphic writing system which is operative under selected writing conditions for maintaining flow of writing fluid (e.g., ink) in the calligraphic pen.

Abstract: A data plotter includes a table for supporting a record sheet, a carriage movable thereon along one orthogonal axis, and a recording device carried by the carriage and movable with respect thereto along the other orthogonal axis. Relative movement is effected between the carriage and table by means of a drive including a pair of spaced racks mounted on one, each meshing with a motor-driven pinion mounted on the other. The data plotter further includes an electronic synchronizing system for synchronizing the operation of the two motors driving the two pinions along the two racks.

Abstract: An optical printhead for contact or non-contact printing on a photosensitive material. The printhead traverses the photosensitive material and is provided with a substrate having a light emitting diode matrix and an interface circuit therein. A lens barrel provided with an optical system therein focuses the diode matrix onto the photosensitive material.

Abstract: A pen type sensor for use in a graphics pen plotter wherein plotter pens are moved along a pre-established path between a pen holding area and a plotting area for reading a plurality of vertically oriented reflective indicia positions thereon to create a binary logic output signal representative of the pen type. There is a hollow body member having a pair of angled front surfaces. Light emitting apparatus is associated with one of the pair of angled front surfaces for directing a light beam to simultaneously strike the indicia positions at a point on the path of pen movement. A plurality of light detectors are associated with the other of the pair of angled front surfaces for receiving on respective sensing surfaces thereof the light beam as it is reflected by reflective indicia on a pen at respective ones of the positions and for creating respective bi-stable output signals reflecting the presence and absense of reflected light on the sensing surfaces.

Abstract: Apparatus for accurately raising and lowering the pen and for generating a positional signal for control use in a graphics plotter having a penholding mechanism slidably and rotationally mounted on a beam for longitudinal positional movement along the beam and rotational movement around the beam to affect raising and lowering of a pen held by the penholding mechanism under the control of plotter control logic. There is an actuator rod disposed parallel to the beam for rotational movement about a longitudinal axis. A spring biases the penholding mechanism to the raised position. A ball bearing linkage is provided for smoothly and slidably linking the actuator rod to the penholding mechanism so that as the penholding mechanism is smoothly moved longitudinally along the beam, rotation of the actuator rod will cause corresponding rotation of the penholding mechanism towards the lowered position.

Abstract: A non-impact printer has a movable printhead carriage for traversing a print medium and has a bracket, also serving as a heat sink, pivotally connected to the printhead carriage. A non-impact printhead is secured to the bracket and positioned to contact the print medium. A spring is positioned between the bracket and the printhead carriage to move the bracket and consequently the attached printhead into contact with the print medium. A printhead adjusting eccentric, causing relative motion between the printhead carriage and the bracket, enables vertical positioning of the printhead with respect to the print medium.

Abstract: A scanning mechanism for a recording apparatus having a carriage for scanning with a bearing portion at which the carriage is engaged on a guide shaft, whereby a dynamic pressure bearing is used in the above-defined bearing portion, and a lubricant supply member is provided on the guide shaft in a position at which the carriage arrives selectively.

Abstract: A compound plotting apparatus for rapidly producing an annotated design comprises a symbol printing device such as a matrix printer for printing an annotation directly on a worksheet or on a label which is deposited on the worksheet and a design line drawing device such as a pen and actuator assembly. Both devices are mounted on a carriage translatable over a worksheet supporting surface. A controller is programmed to automatically select and activate the device more suitable to produce a type of mark, the symbol printing device to print annotations on the worksheet or on the label as the case may be and the design line drawing device to draw design lines on the worksheet.

Abstract: A rotary action graphic recording system includes a pen carriage supporting a plurality of recording pens in a linear array together with means for moving the pen carriage in a carriage path. Rotary actuation means are supported by and operative upon the pen carriage to engage selected ones of the recording pens for movement into contact with the recording media. The rotary actuating means are operated by an elongated actuator beam supported in parallel with the carriage path and coupled to the rotary actuating means. Brake means within the rotary actuator are provided which are operative to engage the actuator beam and permit alignment of the rotary actuator with a selected pen within the pen carriage array by movement of the pen carriage.

Abstract: A recording device capable of writing a character on a sheet of paper with a writing ball-point pen according to a set of character pattern data which is stored in a pattern memory, and erasing a written character with an erasing ball-point pen with reliability, by means of (1) modifying the set of character pattern data into a corresponding set of erasing pattern data which permits each of the components of an erasing path of the erasing pen to be shifted from the written character in a selected one of a first and a second direction which are normal to a first and a second reference line intersecting with each other, the set of erasing pattern data causing the component of the erasing path to be shifted in the first direction if a segment of the written character corresponding to the component is positioned nearer to the first reference line than the second, or to be shifted in the second direction if the segment is positioned nearer to the second reference line, and (2) controlling movements of the erasing

Abstract: In a pen pressure device including a carriage, a pen axially movably supported to the carriage in such a manner that a front end of the pen is opposed to a paper, a pen pressure spring for biasing the pen toward the paper, a return spring for biasing the pen in a direction apart from the paper; the improvement comprises a hammer mounted on the carriage and adapted to be biased by the pen pressure spring having a spring force greater than that of the return spring to thereby urge the pen, and a cam member for moving the hammer to a retracted position where the pen is not urged by the hammer.

Abstract: A printhead cartridge and carriage assembly (10) for use with ink-jet printers is disclosed. The assembly is provided with means (56) for ensuring that an ink-jet cartridge (20) is securely locked in place in a cartridge carrier (12), means (78, 78a, 80, 80a, 82, 82a) for ensuring that cartridge is registered in a given, fixed, repeatable position each time, means (128) for ensuring that the cartridge is spaced from the printing medium (40) a minimum, fixed distance, means (100) on the carriage for maintaining this fixed distance, and interconnect means (84) for connecting a printhead assembly (34) on the cartridge with a microprocessor for controlling the pattern of ink drop ejection. The assembly further includes a preloader assembly (106) for preventing backward rotational pivoting of the carriage about a slider rod (44) associated with a platen (46) of the printer and for urging the carriage toward the medium on the platen.

Abstract: In a multi-position graphics plotter pen carousel system employing a pen capping mechanism therein at each pen position for capping and uncapping pens held by the carousel, an improvement for allowing the sensing of pen presence at the pen positions and the indexing of the carousel with a single sensor. Each pen capping mechanism is adapted to assume a first position with a pen in the pen position and assume a second position with no pen in the pen position. A plurality of first sensible attributes are associated with respective ones of the pen capping mechanisms for exhibiting a first characteristic when a pen is contained at the associated pen position and for exhibiting a second characteristic when no pen is contained at the pen position. A plurality of second sensible attributes are associated with respective ones of the pen positions for constantly exhibiting the first characteristic.

Abstract: A thermal printer using a single pulse motor is disclosed. This thermal printer comprises: a single pulse motor; a moving member which is moved in accordance with the drive of the pulse motor; a head raising and lowering mechanism and a sheet feed mechanism which are selectively actuated in correspondence with the movement of the moving member; and a carriage moving mechanism which is interlockingly driven by the pulse motor. These components are driven by the single pulse motor. Also, the moving member may be a rack.

Abstract: A computer controlled photoplotter includes a row of LED's mounted to a light head positioned parallel to the film width. The light head is part of a light head assembly which is moved parallel to the film length. At the end of each pass the light head is indexed widthwise a short distance. During each lengthwise pass the LED's are illuminated at appropriate positions to expose the film at those positions according to the image being plotted. The light head uses cylindrical lenses in which the index of refraction varies radially. The lenses are secured within the bores in the light head by resilient, cushioned material biased against the sides of the lenses through the slot opening into the sides of the bores.

Abstract: A pen recorder includes a pen position detecting portion for periodically or nonperiodically detecting the position of a pen, and a position correcting circuit for calculating a driving amount and a driving direction of a motor used for correcting a pen position, in accordance with a pen position detected by the pen position detecting portion and a recording position of the pen corresponding to an input signal. The pen position detecting portion detects an actual position of the pen when the pen is moved to perform a recording operation in response to the input signal. In accordance with the actual pen position and the recording position of the pen corresponding to the input signal, a driving amount and a driving direction of the motor for moving the pen are calculated by the position correcting circuit, to thereby correct the pen position.

Abstract: A chart recorder includes a chart drive assembly including a drive platen, first and second print heads, a slave controller for energizing the second print head, a master controller for energizing the first print head and for actuating the slave controller and a host computer for controlling the master and slave controllers and for supplying data thereto. The master controller controls the chart drive assembly to coordinate it with the energizations of the print heads, and it actuates the slave controller to synchronize the energizations of the print heads. The print heads are independently mounted in end-to-end relation and independently biased toward the chart and the platen at a printing station to enable them to compensate for deflections in the print head and/or the platen, as well as distortions in the heads due to thermal expansion.

Abstract: A pen for use in an x-y plotter, the casing of the pen having means for interacting with the pen holders of the plotter to establish and maintain a desired annular orientation of the pen.

Abstract: In a plotter (10) having a plurality of pens (14) stored in a rotatable turret (16) for selective use in a plotting operation, the turret may be rotated by the drive motor (32) used to move the paper (12) bidirectionally, thereby eliminating the cost and weight associated with a pen turret drive motor. The rotation of the turret is mechanically coupled to a grit wheel shaft (34), which is used to move the paper and which is driven by the paper drive motor. The turret is positioned on a spindle (86) provided with slots (88) associated with the location of the pens. The bottom of the spindle is provided with a worm gear (110), which is continuously engaged by a worm (94) mounted on one end of a worm shaft (96). The grit wheel shaft is also provided with a gear (104) which is selectively engageable by a sliding gear (102) mounted on the other end of the worm shaft. A lever engager (98) is actuated by a foot (106 ) on the bottom of the carriage assembly (56) which supports a pen during the plotting operation.

Abstract: A thermally developed photographic copier is provided having two controls, one for adjusting the contrast, or blackness, of an image, and another for adjusting background contrast. A microprocessor samples and processes the settings of these controls to produce a video pedestal determined bythe background contrast control, and a gain control signal adjusted for effects of the background contrast setting to keep amplified video singals within the dynamic range necessary for the image contrast setting. Video signals used to expose light-sensitive paper or film are amplified in accordance with the gain control signal and combined with the video pedestal for desired background contrast.

Abstract: A printer having a printing head (3) which is secured to a holder (1) and which is movable in a reciprocating manner along an information carrier, the holder (1) engaging with resilient force a first roller (55) and a second roller (57). The rollers (55 and 57) move over two fixedly arranged roll surfaces (59 and 61), as a result of which a guidance substantially without friction of the holder (1) with the printing head (3) is obtained.

Abstract: A compact plotter is disclosed, having a small area in which a plurality of print heads (10) are laterally scanned to print impressions on the paper (14), and the paper (14) is incrementally advanced by an indexer (42) past the print heads (10). A paper travel encoder (36) measures the paper advancement. A computer 22 and a processor 26 are provided to coordinate the printing of pattern data stored in a data base (24) both with the movement of the print heads (10) and the advancement of the paper (14). The computer (22) allocates data from the data base (24) to be printed according to the amount of paper advancement. If the paper (14) is advanced more than a predefined amount, more data is allocated for printing than is actually printed. If the paper (14) is advanced less than the predefined amount, less data is allocated to be printed than is actually printed.

Abstract: The body of a writing member is movable in translation between a rest position and a work position, at least partly under the action of a magnetic force, and is permanently held against at least one guide element carried by the support, by means of a magnetic attraction force acting transversely relative to the direction of displacement in translation of the writing member.

Abstract: An X-Y plotter disclosed is of the type which moves a recording paper with no perforation by drive rollers and pinch rollers. A plurality of sharp projections are arranged on the outer surface of each of the drive rollers such as to enable an exact feeding of the paper without any slippage. These projections are formed by cutting in the outer surface of each drive roller with V-grooves parallel and orthogonal to the shaft of the drive rollers.

Abstract: An ink jet recorder comprises a first tank as an ink supply source, a second tank as an ink supply source for the first tank, and three switching means and a pump arranged in an ink supply path. By controlling the open/close states of the switching means and operation condition of the pump, a print mode, supply mode, pressure mode, circulation mode or store mode can be selectively established.

Abstract: A control system for controlling a turret head in a pen plotter wherein the turret head and pen holder move in combination with the pen carriage to provide turret selectability at the writing site. Sensors and associated logic are provided for detecting the presence of a turret on the pen carriage, for sensing the presence and absence of pens in the turret and in the pen holder, for detecting the type of pen or other writing device being used and taking appropriate action responsive thereto, and for applying varible damping constants to the movement of the turret head. Control logic is disclosed for assuring reliable and optimum operation.

Abstract: A multi-pen recording device including a carriage holding a number of pens and movable on a shaft over a writing surface, a single plunger provided for selectively urging a selected individual pen against the writing surface, a belt for driving the carriage attached to the carriage, a clutch provided on the carriage for transmitting the drive force of the belt to the plunger and for releasing the same, whereby the drive force of the belt is used as the drive force for the pen selection and is used as a single plunger for urging a pen against the writing surface which eliminates the need for a special drive source for changing over the plunger toward the respective pens.

Abstract: A vibration preventing device in an intermittent driving mechanism for intermittently operating a driven member having a specified mass with a motor, includes an elastic body interposed between an operating member and a stationary member facing thereto which are disposed in a motor power transmission system, and a friction surface formed between the elastic body and the operating member or between the elastic body and the stationary member, whereby at the time of starting the motor, the load on rotation of the motor is gradually increased by elastic deformation of the elastic body.

Abstract: A head connection structure of a printer including a carriage with a flexible circuit sheet and a thermal head with another mating circuit sheet, comprises a cap board positioned detachably on the carriage and a positioning guide pin provided on the carriage. Both circuit sheets are held by and between the cap board and the carriage with the circuit sheet of the thermal head being positioned accurately by the guide pin.

Abstract: A method of exchanging writing implements for automatic drafting machine and its device in which a plurality of writing implement holders consisting of a stationary arm and a rotary arm at a stocker side, and a writing implement holder consisting of a stationary arm and a rotary arm is provided at a drawing head side, and when the drawing head moves to pick up a writing implement at the stocker side, a position of the stocker is shifted relatively to the drawing head so that a writing implement holding side end of the stationary arm at the drawing head side is shifted at a predetermined interval in the inside direction of an open portion of the writing implement holder at the stocker side relative to the writing implement holding side end of the stationary arm at the stocker side, and when the drawing head moves to place a writing implement at the stocker, a position of the stocker is shifted relatively to the drawing head so that the writing implement holding side end of the stationary arm at the stocker sid

Abstract: A pen control circuit includes a current control circuit for controlling the magnitude of a driving force of a drive coil, a feedback circuit for supplying a feedback signal to the current control ciruit, a clipper for extracting the pen position detection signal only when the level of the pen is higher than a predetermined level with respect to a recording surface, and a selector for selecting first, an output from the clipper as a drive current setting value of the current control circuit during an initial pen-down period and second, the pen pressure setting signal as the drive current setting value after the output from the clipper is disabled. The pen control circuit also includes a current setting circuit for supplying a predetermined drive current setting value to the current control circuit in a pen-up mode and a limiter for limiting a current supplied to the drive coil in accordance with a pen position detection signal when the pen is moved upward to a predetermined position.

Abstract: A thermal printer having a reciprocable carriage on which a thermal head is carried. The printer further includes a toothed rack and a driving plate both of which are rotatably held to a shaft. The rack acts to rotate the thermal head toward and away from a recording sheet. The driving plate has a protrusion for rotating the rack in one direction. A pin protruding from the driving plate on opposite side to the rack is fitted in a grooved cam, which serves to rotate the driving plate. A tension spring is mounted between the rack and the driving plate to cause the protrusion of the driving plate to angularly bias the rack in one direction so that the force of the tension spring urges the head toward the recording sheet.

Abstract: A recording apparatus for recording graphs or other graphical representations, with relative movements between a writing instrument on a carriage which is moved by a carriage drive unit, and a sheet of paper which is fed by a paper feed unit in opposite directions perpendicular to the line of movements of the carriage. The writing instrument is moved between a recording position, and a non-recording position in which the writing instrument is spaced away from the paper. The apparatus comprises a controller for activating the paper feed unit and carriage drive unit to effect relative non-recording movements of the writing instrument and the paper with the writing instrument held in the non-recording position.

Abstract: A writing-plotting apparatus with a keyboard capable of writing characters in a writing mode, and plotting graphs in a plotting mode, comprising a carriage carrying a writing instrument such a ball-point pen movable toward and away from a sheet of paper, a first memory for storing character pattern data representative of characters, a second memory for storing graphic pattern data representative of patterns of graphs, and a control device which, in the writing mode, reads out from the first memory the character pattern data corresponding to the operated character keys, and in the plotting mode, reads out from the second memory the graphic pattern data. The control device is responsive to the read-out character or graphic pattern data to control the operations of drives for feeding the paper along one axis, and reciprocating the carriage along another axis perpendicular to the one axis.

Abstract: A thermal printer having a reciprocable carriage on which a thermal head is carried. The printer further includes a rotatable gear for winding print tape, a toothed rack that can move toward and away from the winding gear, and a driving plate for reciprocating the rack in association with the rotation of the carriage. When characters are to be printed, the carriage is rotated to the platen, and the teeth of the rack are brought into mesh with the winding gear. When no characters are printed, the carriage is angularly moved away from the platen, and the teeth of the rack are disengaged from the winding gear.

Abstract: A device associated with a thermal transfer recording apparatus for boosting a pressing force of a thermal head against a platen roller. The thermal head is mounted on one end portion of an elongate support plate which is movable in a seesaw motion about a fulcrum. Output torque of a rotary solenoid device is transmitted to the support plate by a rotary shaft which is connected to the solenoid device, so that the support plate is moved about the fulcrum to press the head against the platen. During recording, an extra drive force is derived from a tension of an ink sheet and imparted via the rotary shaft to the support plate to move the support plate, serving to further intensify the pressing force of the head against the platen.

Abstract: A recording apparatus comprises circuitry supplied with electric power for moving a recording head toward a recording medium into a recording position and a solenoid for holding the recording head in the recording position, circuitry for generating timing signals, and control circuitry for controlling the electric power so as gradually to vary the electric power applied to the solenoid in accordance with the timing signals.

Abstract: A copying machine in which a reading element array consisting of a plurality of reading elements arranged at equal spacings in a straight line and a printing element array consisting of a plurality of printing elements arranged at equal spacings in a straight line are caused to reciprocate, a relative movement between a subject copy and the reading element array is caused in the direction virtually normal to the reciprocating movement, and a copying paper sheet facing to the printing element array is caused to move is disclosed. The image information read by each reading element is fed to the corresponding printing element to reproduce characters or patterns on the subject copy on the copying paper sheet by means of the printing element array.

Abstract: A recording apparatus for writing characters in a writing mode and plotting graphs in a plotting mode, with a writing instrument supported on a reciprocating carriage, based on input data through a keyboard which is operable in a first mode in which at least numerals are keyed in, and in a second mode in which letters and symbols are keyed in. The apparatus comprises a control device for controlling a paper feeding device and the carriage, to write in the writing mode the characters which are keyed in through corresponding character keys with the keyboard placed selectively in the first mode or in the second mode, and to plot the graphs in the plotting mode based on the operations of the keys with the keyboard placed in the first mode.

Abstract: A recording head device comprises a roller, a recording head disposed opposite to this roller, a securing member, a frame with a hole, a pin passing through this hole in contact with the securing member, and a supporting means for supporting the recording head, having an elongate hole and being engaged by the pin between the securing member and the frame so that a small relative motion caused, for example, by deformation of the device is allowed between the securing member and the recording head and a uniform pressure can be maintained between the roller and the recording head.

Abstract: According to a print control apparatus of a printer which has a line buffer, when one-line data transmitted from a host CPU includes a character and a figure, a print and line feed controller causes a character image generator to access a character pattern memory so as to write the readout a character image in the line buffer. The print and line feed controller causes a figure image generator to generate a figure image which is then ORed-written on the character image. As a result, one-line character and figure data can be printed with one scanning operation. Figure data parameters are stored in the parameter area in the internal memory. Every time printing of a page is performed in units of predetermined dot widths, the parameter corresponding to the figure image developed into the line buffer is deleted from the parameter area. The next parameter is then stored in the parameter area.