JPH08224931A - Recording apparatus - Google Patents

Abstract

PURPOSE: To obtain a recording apparatus enhanced in quietness by making the first output value generated by a drive means when a power supply is connected by a power supply intermittent means larger than the second output value generated by the drive means when the stopping mode of the coscillator in a CPU is changed over to the start mode thereof. CONSTITUTION: When a power supply cord 60 is inserted in a jack 34a, hard power is turned ON and the initial check of software is performed. All of mechanisms are returned to an initial position by the completion of the check. At this time, the output torque of a motor is set so as to drive all of the mechanisms at the same time. Since it is supposed that the cord 60 is always inserted in the jack 34a at a time of general use, a button is pushed when a recording apparatus is operated to set the oscillator in a CPU from a stop mode to a start mode to set the recording apparatus to a recordable state. At this time, the output torque of a motor is set so as to drive all of the mechanisms independently and, since it is unnecessary to output excessive torque, the drive sound of the motor at the time of the driving of the respective mechanisms is kept quiet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus having recording means for outputting input information such as characters and images on a recording medium, and a copying machine, a facsimile machine, which is equipped with the recording apparatus as output means. The present invention relates to an information processing system such as a printer, a word processor and a personal computer.

[0002]

2. Description of the Related Art A recording device having functions of a printer, a copying machine, a facsimile, etc., or a recording device used as an output device of a composite type electronic device including a computer, a word processor, etc. An image is recorded on a recording material (recording medium) such as a plastic thin plate. The recording device can be classified into an ink jet type, a wire dot type, a thermal type, a laser beam type and the like depending on a recording system.

In a serial type recording apparatus which employs a serial scan system in which main scanning is performed in a direction intersecting a recording material conveyance direction (sub-scanning direction), after the recording material is set at a predetermined recording position, the recording material is recorded. An image is recorded (main scanning) by a recording unit (recording head) mounted on a carriage that moves along the material, and a predetermined amount of paper is conveyed (pitch conveyance) after one line of recording is completed, and then Recording on the entire recording material is performed by repeating the operation of recording (main scanning) the image of the next row on the recording material that has stopped again. Among the above-described recording apparatuses, an inkjet recording apparatus (inkjet recording apparatus) performs recording by ejecting ink from a recording unit (recording head) onto a recording material, and it is easy to make the recording unit compact. , High-definition images can be recorded at high speed,
It is possible to record on plain paper without special processing, low running cost, less noise due to non-impact method, and easy to record color image using multicolor ink. It has advantages such as

In particular, an ink jet type recording means (recording head) for ejecting ink by utilizing thermal energy is
By forming the electrothermal converter, electrodes, liquid channel wall, top plate, etc., formed on the substrate through semiconductor manufacturing processes such as etching, vapor deposition, and sputtering, high-density liquid channel arrangement (ejection port arrangement) Can be easily manufactured, and further compactification can be achieved.

In the above-mentioned ink jet recording apparatus, since a recording head in which fine ejection openings are arranged is generally used, when air bubbles or dust are mixed in the ejection openings or when the ink solvent evaporates. Even when the ink is not suitable for ejection or recording due to thickening or the like, the ejection recovery process is performed to remove the ejection failure factor by refreshing the ink. Generally, in a serial type printing apparatus, a step motor is often used as a carriage driving motor that drives a carriage for main scanning (print scanning) of a print head. Further, a step motor is often used as a drive motor for feeding the recording material in the direction perpendicular to the moving direction of the carriage. Furthermore, in order to reduce the number of motors that are drive sources for cost reduction, space saving, etc., there have been developed ones that can execute a plurality of operations with one drive source.

FIGS. 3 and 4 are schematic views showing the mechanism of an ink jet recording apparatus having a drive switching mechanism.
FIG. 3 is a sectional view of the device.

In FIGS. 3 and 4, the outside of the apparatus main body is composed of a cover 1 and a lid 2 rotatable about a shaft 2a. The lid 2 also serves as a sheet material tray. The sheet material is inserted through the insertion opening 1a provided in the cover 1 and discharged through the discharge opening 1b. Inside the plurality of side plates 3 provided in the cover 1, one end around the shaft 4a is a pin 6
A sheet material stacking base (sheet material stacking means) 4 which is biased in the direction (upward) of the feeding roller 9 by a spring 5 fixed by a long radius portion that can contact the sheet material and a short radius that does not contact the sheet material. And a feeding roller (sheet material feeding means) 9 fixed to the shaft 8 and a shaft 8 fixed to the shaft 8.
Of the sheet fed by the feeding roller 9 and a drive cam 7 that engages with the follower portions 4b provided at the left and right ends of the sheet material loading table 4 to push down the sheet material loading table 4 downward. The abutting member (separating means) 10 that is a separating member that separates the sheet material by causing an angle change due to the abutting material, and the leading end of the sheet material separated by the abutting member 10 is guided in a rising direction. A guide member 11 having a surface 11a for separating the sheet material and the tip end of the abutting member 10 by the guidance by the surface 11a.
It has and.

Further, a photosensor (sheet material detecting means) having a light emitting portion and a light receiving portion on the downstream side of the guide member 11 for detecting the front edge and the rear edge of the sheet material with or without reflected light.
PH, a conveying roller (conveying means) 13 fixed to the shaft 12 and conveying the sheet material guided by the upper guide 28a and the guide member 11 by the feeding roller 9 and fed at a constant speed, and rotated by the shaft 14. The sheet material is conveyed to the conveying roller 13 by the force of a spring 15 via a shaft 14 provided freely.
The first pinch roller 16 that presses against the ink and the ink absorbing material 17
A platen 18 having a built-in roller, a paper discharge roller 20 that is fixed to a shaft 19 and discharges a printed sheet material, and a shaft 21 that is rotatably provided on the shaft 21. Second pinch roller 2 pressing against 20
3, a carriage 26 that is guided by the guide shafts 24 and 25 and is movable in the width direction of the paper, and a carriage 26 that is mounted on the carriage 26 and that ejects ink from the ejection unit 27a corresponding to image information for printing. The recording head 27 is provided.

The carriage 26 has a motor 29 provided on a central side plate 28 having an upper guide 28a, a pulley 30 provided on an output shaft thereof, and a belt having one end fixed to the carriage 26 and attached to the pulley 30. Three
Driven by 1.

Further, an operation electric board 33 having a plurality of switch buttons 32 provided so as to project from the holes of the case 1 inside the case 1 and a microcomputer provided under the sheet material loading table 4 are provided. A control electric board (control means) 34 for mounting the memory and a memory to control the operation of the apparatus is appropriately arranged.

The mechanism of this apparatus will be further described with reference to FIG. First, the switching means for contacting / separating the sheet material on the sheet material stacking base 4 with the feeding roller 9 will be described.

The drive cam (cam member) 7 fixed to the shaft 8 of the feeding roller 9 and the follower portion 4b provided on the sheet material stacking base 4 are in contact with each other at a predetermined position by the force of the spring 5. The drive cam 7 is synchronized with the feeding rotation of the feeding roller 9.
The sheet material stacking base 4 moves up and down by the rotation of the drive cam 7 to bring the sheet material and the feeding roller 9 into contact with and separate from each other.

A pulley 37 provided at one end of the transport roller shaft 12 and a pulley 3 provided at one end of the paper discharge roller shaft 19.
Since 8 is connected by a belt 39, the rotation of the motor M, which is a drive source, is transmitted to the paper discharge roller 20 via the shaft 12.

A cap base 41 having a cap 40 for covering the ink ejection portion 27a of the recording head 27 is provided on the side opposite to the motor across the sheet material conveying path. The cap base 41 has a rotating shaft 41a and a push-down cam portion 41b, and the force of a spring 42 causes the shaft 41a to move.
Rotation is urged counterclockwise around. And
When the protrusion 26a of the carriage 26 comes into contact with the push-down cam 41b due to the movement of the carriage 26, the cap base 41 is pushed down against the force of the spring 42 and the cap 40 is lowered, so that the protrusion 26a is pushed down by the cam 41.
After passing b, the cap 40 rises and the discharge part 27
Cover the discharge port in close contact with a.

The pump 43 has a piston shaft 43b forming a rack 43a, a suction port 43c, and a discharge port 43d. The suction port 43c and the cap 40 are formed by a tube 40a, and the discharge port 43b is formed by a platen base 18. The ink is sucked from the cap 40 and discharged to the absorbing member 17 in the platen 18.

The pump drive gear 45 with which the rack 43a of the pump 43 meshes is provided on the shaft 12 so as to be movable in the direction along the axis of the shaft 12 and to be linked to the rotation of the shaft 12. It is biased by a spring 46 to a position where it does not mesh with the rack 43a.

Solid components of the ink tend to adhere to the vicinity of the ejection port of the recording head 27, which may cause ejection failure. At this time, in order to perform the ejection failure recovery operation, the motor 29 moves the carriage 26 in accordance with a command from the controller 34 to couple the ejection portion 27a with the cap 40. The carriage 2
6, the protrusion 26b of the carriage 26 moves the pump drive gear 45 to the position shown by the chain double-dashed line, so that the pump drive gear 45 meshes with the rack 43a. In this state, by driving the motor M, the gear 45 repeats forward and reverse rotations within a predetermined rotation angle a predetermined number of times, and the rack 43a reciprocates in the straight traveling direction a predetermined number of times. Since the reciprocating movement of the rack 43a also reciprocates in conjunction with the piston shaft 43b, the pump 43 absorbs the ink and its solid content from the ink ejecting portion 27a,
The suctioned material is discharged to the absorbing member 17 in the platen 18.

Next, the structure of the drive transmission means for transmitting the rotation of the motor M to the paper discharge roller 9 and the conveyance roller 13 will be described.

The motor M has an output gear 47 provided on the motor shaft and a two-stage gear 48 according to a signal from the controller 34.
Then, the pair of conveying rollers 13 and 16 are rotated through the conveying roller gear 49 fixed to the shaft 12 to convey the sheet material.

On the other hand, the motor M rotates the output gear 47, the two-stage gear 48, and the gear 51 fixed to the shaft 50. Similarly, the first planetary gear 53 that meshes with the first sun gear 52 fixed to the shaft 50 is composed of a large planetary gear 53a and a small planetary gear 53b, and the shaft 54 of the first planetary gear 53 rotates about the shaft 50. It is pivotally supported by the moving first carrier 55.

Since the first planetary gear 53 is pressed against the one arm member 55a of the first carrier 55 with a predetermined pressure by the spring 56 provided on the shaft 54, the rotation of the first planetary gear 53 is constant. Is given a load of.

In FIGS. 3 and 5, the first sun gear 52 rotates in the direction of arrow 50a as the output gear 47 provided on the shaft of the motor M rotates in the direction of arrow 47a. Since a constant load is applied to the rotation of the large planetary gear 53a that meshes with the first sun gear 52, the first planetary gear 53 does not rotate but revolves around the first sun gear 52 in the direction of the arrow 50a. By this revolution, the first carrier 55 also rotates in the direction of the arrow 50a, so that the small planetary gear 53b and the gear 57 fixed to the feeding roller shaft 8 mesh with each other, whereby the rotation of the motor M in the direction of the arrow 47a rotates on the shaft 8. As a result, the paper feed roller 9 rotates in the feeding direction 8a.

The gear 57 is provided with a toothless portion 57a. When the gear 57 is rotated and the toothless portion 57a comes into a meshing position with the small planetary gear 53b, the small planetary gear 53b idles. Therefore, the rotation of the gear 57 and the feed roller 9 in the feeding direction is stopped.

In FIGS. 3 and 6, the arrow 4 of the motor M is shown.
Due to the rotation in the 7b direction, the sun gear 52 rotates in the arrow 50b direction. Following this rotation, the first carriers 55, 55
a rotates in the direction of arrow 50b together with the first planetary gear 53. The rotation of the first carrier 55 in the direction of the arrow 50b causes the small planetary gear 53b to disengage from the meshing position with the gear 57,
The rotation of the first carrier 55 is stopped when one arm member 55a of the carrier hits the pin 58. At the position where the rotation of the first carrier 55 is stopped, the small planetary gear 53b continues to idle while the first sun gear 52 is rotating in the direction of the arrow 50b.

The gear 60 and the second sun gear 61 that mesh with the first sun gear 52 are fixed to the shaft 59. A second planetary gear 62 that meshes with the second sun gear 61 is pivotally supported by a second carrier 63 that freely rotates around a shaft 59.
Since the second planetary gear 62 is pressed against the one arm member 63a of the second carrier with a predetermined pressure by the spring 64, a constant load is applied to the rotation of the second planetary gear 62.

3 and 5, the arrow 47 of the motor M is shown.
The gear 60, the shaft 59, and the second sun gear 6 are rotated by the rotation in the a direction.
1 rotates in the direction of the arrow 59a, and in response to this rotation, the second carrier 63 moves together with the second planetary gear 62 in the same manner as the arrow 5a.
The rotation of the second carrier 63 is stopped when the carrier arm member 63a and the pin 65 finally come into contact with each other in the direction of 9a. With the second carrier 63 stationary, the sun gear 61
The second planetary gear 62 continues idling due to the subsequent rotation of.

3 and 6, the arrow 4 of the motor M is shown.
By the rotation in the 7b direction, the sun gear 61 rotates in the direction of the arrow 59b, and in response to this rotation, the second carrier 63 moves into the second direction.
Similarly, the second planetary gear 62 rotates in the direction of the arrow 59b together with the planetary gear 62, and finally the second planetary gear 62 is brought into a state of meshing with the toothless gear 57, so that the rotation of the second sun gear 61 in the direction of the arrow 59b passes through the shaft 8 through the sheet feeding roller 9 Is transmitted as rotation in the feeding direction 8a.

The rotation of the gear 57 due to the driving of the second planetary gear 62 progresses, and the toothless portion 57a of the gear 57 forms the second planetary gear 62.
When it comes to the meshing position with, the second planetary gear 62 idles and cuts off the transmission to the gear 57.

At a predetermined angle α in the so-called non-interlocking process region where the second planetary gear 62 does not mesh with the tooth-chipped gear 57 within the entire revolution angle region in which the second planetary gear 62 revolves around the second sun gear 61. The second planetary gear meshes with the internal gear 66. By this meshing, the second planetary gear 62 revolves around the second sun gear 61 while rotating on its axis.

[0030]

However, in the switching mechanism for switching the drive transmission direction of the motor, which is the drive source, as described above, some external force is applied during the ejection failure recovery operation of the recording head. If the drive is transmitted to the paper feed mechanism side as well, and if the output torque of the motor is set to a value that is necessary for the recovery operation, the torque will be insufficient and the motor will be out of step and the recording device Recovery to normal operation becomes difficult. Therefore, the output torque of the conventional motor is set to a value that is satisfied even if a plurality of drive transmission units (recovery operation unit, paper feeding unit) operate simultaneously. However, with such a setting, when each drive transmission unit operates normally independently,
Since there is a margin in the output torque of the motor, the driving noise becomes loud and the quietness becomes poor.

Therefore, in view of the above-mentioned conventional problems, it is an object of the present invention to provide a recording apparatus having high quietness.

[0032]

In order to achieve the above object, a first aspect of the present invention comprises a recording means for recording on a recording medium, a driving means for driving a predetermined mechanism, and a power source for the apparatus main body. A power supply connection / disconnection means for connecting / disconnecting, an internal oscillator stop mode of the CPU, an internal oscillator start mode of the CPU, a first output value generated by the drive means when the power supply is connected by the power supply connection / disconnection means, and the CPU And a second output value generated by the drive means when the internal oscillator is switched from the stop mode to the start mode, wherein the first output value is larger than the second output value. It is characterized by

A second aspect of the invention is a recording means for recording on a recording material, a feeding means for feeding a loaded recording material to a recording position, a recording material conveying means, and a driving means for the conveying means. Means, drive switching means for switching the drive of the driving means to the conveying means, power supply disconnecting means for connecting and disconnecting power to the apparatus main body, internal oscillator stop mode of the CPU,
A first output value generated by the drive means when the internal oscillator start mode of the CPU is connected to the power supply by the power supply disconnecting means, and the drive means generated when the CPU switches from the internal oscillator stop mode to the start mode. And a second output value, which is set to a value equal to or greater than the second output value.

A third aspect of the invention is a recording means for recording on a recording material, a feeding means for feeding a loaded recording material to a recording position, a recording material conveying means, and a recovery of the recording means. Means, driving means for the conveying means, and first drive switching means for switching the driving of the driving means to the conveying means,
Second drive switching means for switching the drive of the driving means to the recovery means, power connection / disconnection means for connecting / disconnecting power to the apparatus main body, CPU internal oscillator stop mode, and CPU internal oscillator start A first output value generated by the driving means when the mode is connected to the power supply by the power supply disconnecting means, and a second output value generated by the driving means when the internal oscillator stop mode of the CPU is switched to the start mode. , And the first output value is larger than the second output value.

In any one of the above-mentioned recording apparatuses, the recording means is an inkjet recording means, and the recording means is provided with an electrothermal converter for generating thermal energy used for ejecting ink. Ink jet recording means may be used, and the recording means may eject the ink from the ejection port by utilizing the film boiling generated in the ink by the thermal energy generated by the electrothermal converter. .

Further, in any of the above recording devices,
The voltage for generating the first output value, which is input to the driving means when the power source is connected by the power source connecting / disconnecting means, is made larger than the voltage for generating the second output value, and the power source connecting / disconnecting means. The current for generating the first output value, which is input to the driving means when the power source is connected, is set to be larger than the current for generating the second output value.

[0037]

In the present invention constructed as described above, first,
When the power is turned on by the power connection / disconnection means, the drive means for driving the predetermined mechanism outputs a value larger than the sum of the output values required by the drive transmission destinations, and the respective drive transmission destination mechanisms are driven. Drive to the initial position. Then, when driven to the initial position, the output value of the driving means is set so that only the output value required by each mechanism such as the recovery mechanism, the paper feeding mechanism, and the paper discharging mechanism is output, and the output value is normally used. Switch to the state. Thereby, quietness is maintained because an output value more than necessary for driving each mechanism is not used.

Further, when the respective mechanisms are simultaneously driven by some external force during normal use, the drive means is turned on again by the power supply disconnecting means so that the drive means outputs the output required by the drive transmission destinations as described above. Since a value larger than the sum of the values is output, it becomes easy to restore normal operation.

[0039]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view showing the schematic construction of an embodiment of the ink jet recording apparatus of the present invention, and is a view seen from the direction of arrow A in FIG. 4 with the lid 2 closed. FIG. 2 is a flowchart of the initial check.

In FIG. 1, a jack 34a into which a power cord 60 is inserted is provided on the rear surface of the case 1 of the apparatus main body, and the jack 34a is a control electric board (control means) 34 in the case 1 (see FIG. 4). It is connected to the. A driving power source for operating the present device can be obtained by inserting the power cord 60 into the jack 34a. The power cord 60 and the jack 34a constitute the power supply disconnecting means of the present invention.

When the device is inserted into the jack 34a, this device is set to carry out the operation shown in the initial flow chart shown in FIG. 2 (a). That is, when the power cord 60 is plugged into the jack 34a, the apparatus is in the hard power-on state and the software initial check is performed. Next, when the soft check is completed, the operation of returning all the mechanical mechanisms to the initial positions is performed. At this time, the output torque of the motor M is set to an output value that can be driven even if all the mechanisms driven by the motor M (for example, the recovery mechanism, the paper feeding mechanism, the paper discharging mechanism) are driven at the same time,
The driving is continued until it outputs the pulse necessary for returning to the initial position for the longest time in each mechanism.

When the recording apparatus of the present invention is normally used,
It is always assumed that the power cord 60 is plugged into the jack 34a. Therefore, when the recording operation is performed by the recording apparatus, the switch button 32 (see FIG. 4) is pressed to set the internal oscillator of the CPU from the stop mode to the start mode to set the recording apparatus in the recordable state, as shown in FIG. 2B. It is set to execute the soft power-on operation of the initial flowchart shown. That is, the switch button 32
When is pressed, the mechanical mechanism is set to the recordable position. At this time, the output torque of the motor M is
All the mechanisms that are driven are set to output values that can be driven independently, and when driving each mechanism, the output values required for each mechanism are set.

As described above, in the soft power mode in the recordable state, no problem occurs when the normal recovery operation and the paper feeding mechanism are independently driven at the expected output values. do not do. However, if a plurality of drives are set by some external force and they are simultaneously driven, the motor M is out of step and cannot be driven. However, when such a situation occurs, since the hard power-on mode is set as described above, once the power cord 60 is disconnected from the jack 34a and then reconnected, the output torque of the motor M simultaneously drives a plurality of mechanisms. However, since the torque value is set to a sufficient value, the mechanical mechanism can return to the initial drive position. Also, with the power cord 60 removed from the jack 34a, it is conceivable that the recording apparatus is carried around or abandoned for a long time. In such a situation, it is assumed that a plurality of simultaneous drives are most likely to be subjected to the external force such as the impact as described above. However, even in such a state, in the recording apparatus of the present invention, since the hard power is set to ON when the power cord is plugged into the jack, it is possible to easily return to the recordable initial state.

By using this configuration, the torque setting required for each mechanism driven by the motor M need only output only the required torque to be driven independently.
The driving sound of the motor generated when driving each mechanism is
Quietness can be maintained because it is not necessary to output unnecessary extra torque.

In the above-described embodiments, the recording means provided in the recording apparatus has been described as an example of an ink jet type recording head. However, for example, by providing the same outer shape as the ink jet recording head. An information processing device capable of reading image information from a document sheet supported by a platen by attaching a scanner unit that can be mounted in a compatible manner in place of the recording head to a carriage that can mount the recording head. Also, the present invention can be preferably used.

The present invention brings excellent effects particularly in an ink jet type recording head and a recording apparatus for recording by forming flying droplets by utilizing thermal energy among the ink jet recording systems.

Regarding the typical structure and principle thereof, see, for example, US Pat. Nos. 4,723,129 and 4740.
What is done using the basic principles disclosed in 796 is preferred. This method can be applied to both the so-called on-demand type and continuous type, but especially in the case of the on-demand type, liquid (ink)
By applying at least one drive signal to the electrothermal converter arranged corresponding to the sheet or liquid path in which is stored, which corresponds to the recorded information and causes a rapid temperature rise exceeding nucleate boiling. , It is effective because it generates heat energy in the electrothermal converter and causes film boiling on the heat-acting surface of the recording head, resulting in the formation of bubbles in the liquid (ink) corresponding to this drive signal on a one-to-one basis. Is. The liquid (ink) is ejected through the ejection openings by the growth and contraction of the bubbles to form at least one droplet. It is more preferable to make the driving signal into a pulse shape because bubbles can be grown and contracted immediately and appropriately, and thus a liquid (ink) with excellent responsiveness can be ejected.

As the pulse-shaped drive signal, those described in US Pat. Nos. 4,463,359 and 4,345,262 are suitable. If the conditions described in US Pat. No. 4,313,124 of the invention relating to the rate of temperature rise of the heat acting surface are adopted, more excellent recording can be performed.

As the constitution of the recording head, in addition to the combination constitution of the discharge port, the liquid passage, and the electrothermal converter (the linear liquid passage or the right-angled liquid passage) as disclosed in the above-mentioned respective specifications. The present invention also includes configurations using US Pat. No. 4,558,333 and US Pat. No. 4,459,600, which disclose a configuration in which a heat acting portion is arranged in a bending region.

In addition, JP-A-59-123670, which discloses a structure in which a common slit is used as a discharge portion of the electrothermal converter for a plurality of electrothermal converters, and a pressure wave of thermal energy is absorbed. The present invention is also effective as a configuration based on Japanese Patent Application Laid-Open No. 59-138461, which discloses a configuration in which an opening corresponds to a discharge portion.

Further, as a full line type recording head having a length corresponding to the maximum recording medium width that can be recorded by the recording apparatus, the length can be increased by combining a plurality of recording heads as disclosed in the above-mentioned specification. The present invention can exert the above-mentioned effects more effectively, although it may have a configuration that satisfies the above requirement or a configuration as one recording head integrally formed.

In addition, by being attached to the apparatus main body, it can be electrically connected to the apparatus main body and can be supplied with ink from the apparatus main body by a replaceable chip type recording head or the recording head itself. The present invention is also effective when a cartridge-type recording head provided with an ink tank is used.

Further, it is preferable to add recovery means for the recording head, preliminary auxiliary means, etc., which are provided as a configuration of the recording apparatus of the present invention, because the effects of the present invention can be further stabilized. If you list these specifically,
Capping means, cleaning means, pressurizing or sucking means for the recording head, preheating means using an electrothermal converter or another heating element or a combination thereof, and a preliminary ejection mode for performing ejection other than recording It is also effective to perform stable recording.

Further, the recording mode of the recording apparatus is not limited to the recording mode of only the mainstream color such as black, but the recording head may be integrally formed or a plurality of combinations may be used. The present invention is also extremely effective for a device provided with at least one of full colors by color mixing.

In the embodiment of the present invention described above,
Although the ink is described as a liquid, it is an ink that solidifies at room temperature or lower and softens at room temperature, or is a liquid, or the ink itself is 30 ° C. or higher and 70 ° C. or lower in the above-mentioned inkjet method. Since the temperature is generally adjusted within the range to control the temperature of the ink so that the viscosity of the ink is within the stable ejection range, it is sufficient that the ink is in a liquid state when the use recording signal is applied.

In addition, the temperature rise due to the thermal energy is positively prevented by using it as the energy for changing the state of the ink from the solid state to the liquid state, or the ink is solidified in a standing state for the purpose of preventing evaporation of the ink. In some cases, such as ink that is liquefied by applying heat energy according to a recording signal and ejected as a liquid ink, or one that has already started to solidify when it reaches a recording medium. The use of an ink having a property of being liquefied only by heat energy is also applicable to the present invention. In such a case, the ink is disclosed in JP-A-54-5684.
No. 7 or JP-A-60-71260, a mode in which the porous sheet is opposed to the electrothermal converter in the state of being held as a liquid or solid in the recess or through hole of the porous sheet. Also good. In the present invention, the most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

In addition, as a form of the recording apparatus according to the present invention, in addition to a recording apparatus provided integrally or separately as an image output terminal of information processing equipment such as a word processor and a computer, a copying apparatus combined with a reader, and It may take the form of a facsimile machine having a transmission / reception function.

[0059]

As described above, according to the present invention, the recording means for recording on the recording material, the driving means for driving the predetermined mechanism, and the power supply disconnecting means for disconnecting the power supply to the apparatus main body. And the internal oscillator stop mode of the CPU and the C
The internal oscillator start mode of the PU, the first output value generated by the drive means when the power supply is connected by the power supply disconnecting means, and the drive means generated when the CPU switches from the internal oscillator stop mode to the start mode. And a second output value, the power source connection is performed when a large output value is required by setting the first output value larger than the second output value. Thus, the recording device has a high quietness during the normal driving operation.

[Brief description of drawings]

FIG. 1 is a schematic diagram illustrating a recording medium conveyance drive in an embodiment of a recording apparatus of the present invention.

FIG. 2 is a flowchart of an initial check.

FIG. 3 is a cross-sectional view showing a mechanism of an inkjet recording apparatus provided with a drive switching mechanism.

4 is a schematic sectional view of the recording apparatus shown in FIG.

FIG. 5 is a diagram showing a normal rotation state of the drive transmission mechanism.

FIG. 6 is a diagram showing a reverse rotation state of the drive transmission mechanism.

[Explanation of symbols]

 1 Cover 2 Lid 3 Side Plate 4 Sheet Material Loading Platform 5, 15, 22, 42, 46, 56, 64 Spring 6, 58, 65 Pin 7 Cam 8, 12, 14, 19, 21, 50, 54, 59 Shaft 9 Paper feed roller 10 Separation means 11 Guide means 13 Conveying roller 16 Pinch roller 18 Platen 20 Paper discharge roller 23 Second pinch roller 24, 25 Guide shaft 26 Carriage 27 Recording head 28 Center side plate 29 Motor 30, 37, 38 Pulley 31, 39 Belt 32 Switch button 33 Electric board for operation 34 Electric board for control 40 Cap 41 Cap stand 43 Pump 44 Tube 45 Pump drive gear 47 Output gear 48 Two-step gear 49 Conveyor roller gears 51, 57, 60 Gear 52 First sun gear 53 1st planetary gear 55 1st carrier 61 2nd thick Gear 62 Gear 70 power cord in the second planetary gear 63 second carrier 66 PH photosensor M mode - motor

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hiroyuki Inoue 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hitoshi Nakamura 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Takeshi Iwasaki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Takashi Nojima 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. ( 72) Inventor Hideki Yamaguchi 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (8)

[Claims] 1. A recording means for recording on a recording medium, a drive means for driving a predetermined mechanism, a power supply disconnecting means for connecting and disconnecting power to the apparatus main body, and an internal oscillator stop mode of the CPU. A first output value generated by the drive means when the internal oscillator start mode of the CPU is connected to the power supply by the power supply disconnecting means; and the drive means when the internal oscillator stop mode of the CPU is switched to the start mode. The second output value that causes
A recording apparatus having a first output value larger than the second output value. 2. A recording means for recording on a recording material, a feeding means for feeding a loaded recording material to a recording position, a conveying means for the recording material, and a driving means for the conveying means, Drive switching means for switching the drive of the driving means to the conveying means; power supply disconnecting means for connecting and disconnecting power to the apparatus main body; CPU internal oscillator stop mode; CPU internal oscillator start mode; A first output value generated by the driving means when the power supply is connected by the power supply disconnecting means, and a second output value generated by the driving means when the CPU switches from the internal oscillator stop mode to the start mode. A recording apparatus, wherein the first output value is larger than the second output value. 3. A recording means for recording on a recording material, a feeding means for feeding the loaded recording material to a recording position, a conveying means for the recording material, and a recovering means for the recording means. Drive means for the transport means, first drive switch means for switching the drive of the drive means to the transport means, second drive switch means for switching the drive of the drive means to the recovery means, and A power supply disconnecting means for connecting and disconnecting the power supply; an internal oscillator stop mode of the CPU; an internal oscillator start mode of the CPU; and a first output value generated by the driving means when the power supply is connected by the power supply disconnecting means, A second output value generated by the drive means when the CPU switches from the internal oscillator stop mode to the start mode;
A recording apparatus having a first output value larger than the second output value. 4. The recording apparatus according to claim 1, wherein the recording unit is an inkjet recording unit. 5. The recording apparatus according to claim 4, wherein the recording unit is an ink jet recording unit including an electrothermal converter that generates thermal energy used to eject ink. 6. The recording apparatus according to claim 5, wherein the recording unit ejects the ink from the ejection port by utilizing film boiling generated in the ink by the thermal energy generated by the electrothermal converter. 7. The voltage generating the first output value, which is input to the driving means when the power supply is connected by the power supply disconnecting means, is set higher than the voltage generating the second output value. The recording apparatus according to any one of 1 to 6. 8. The current for generating a first output value, which is input to the driving means when the power supply is connected by the power supply disconnecting means, is larger than the current for generating the second output value. The recording apparatus according to any one of 1 to 6.