JPH08267869A - Recording apparatus - Google Patents

Abstract

PURPOSE: To easily and surely feed papers manually in a recording apparatus wherein a driving source of a transfer roller for a material to be recorded works also as a driving source of the other mechanism such as a discharge recovery system, etc., and the transfer roller for the material to be recorded is driven simultaneously when the driving source of the other mechanism is driven. CONSTITUTION: When a paper sensor 23 is turned ON because of the presence of a material to be recorded in the vicinity of a nip point between a transfer roller 6 for the material and a driven roller, a driving force of a paper feed motor 15 is controlled not to be transmitted to a pump gear 18, so that a discharge recovery mechanism of a recording head part of a head cartridge 9 is not driven to effect a manual paper feed mode in this recording apparatus.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a printer, a copying machine,
The present invention relates to a recording device such as a word processor, a personal computer, and a facsimile, and more particularly, to a recording device in which a drive source of a recording material conveying roller is common with a drive source of another mechanism.

[0002]

2. Description of the Related Art In this type of recording device, it is proposed to reduce the number of motors as a drive source so that a single drive source can perform a plurality of operations in order to achieve cost reduction and space saving. Has been done.

As this apparatus, an ink jet printer having a paper feed motor for driving a feeding roller for feeding a recording material and a recovery system for recovering from non-ejection of the ink jet head is mounted with the ink jet head. It has been proposed that the driving force of the paper feed motor is transmitted also as the driving force of the recovery system by sliding the position of the gears by the movement of the carriage and meshing the gears with each other.

With such a structure, the ejection of the recording head can be recovered while the paper is being fed by a predetermined amount without separately performing the paper feeding and the recovery operation of the recording head, which is high. A high quality record of speed is achieved. Moreover,
Since a single drive source can execute mechanical operations other than paper feeding, cost reduction, space saving, etc. can be achieved.

[0005]

However, the above-mentioned proposal has the following problems. (1) If there is no manual paper feed mode, it becomes necessary to feed recording materials such as OHP sheets or envelopes in the automatic paper feed unit, and as a result, higher performance of the automatic paper feed unit is required. Becomes expensive. (2) On the other hand, when the manual paper feed mode is provided in which the recording material is set so that the leading end of the recording material is located at or near the position where the recording material comes into contact with the conveying roller,
When the recording material is set at the recording material setting position, if the ejection recovery mechanism of the recording head is started to drive, the recording material conveying roller is also driven, so that the recording material is unsuitable. Will be transported to the wrong position.

Therefore, in view of the above situation, the object of the present invention is that the driving source of the recording material conveying roller also serves as the driving source of another mechanism such as an ejection recovery system, and the other driving source is driven. Sometimes, in a recording apparatus in which the conveyance roller for the recording material is also driven at the same time, manual paper feeding can be performed easily and reliably.

[0007]

In order to achieve the above object, according to the present invention, a drive source of a recording material conveying roller also serves as a drive source of another mechanism, and the other mechanism is driven. In a recording apparatus that sometimes drives the transport roller, a control including a manual feed mode for setting the recording material to a manual feed portion at or near a position where the leading end of the recording material contacts the transport roller and performing a paper feeding operation It is characterized by having means.

In the above recording apparatus, when the manual feed mode of the control means detects that the leading edge of the recording material is set at or near the position where the leading edge of the recording material comes into contact with the conveying roller, the other operation is performed. It is characterized in that the driving of the mechanism is prohibited.

The manual feed mode of the control means is as follows.
When it is detected that the tip of the recording material is set at or near the position where it abuts on the recording material conveying roller, if it is necessary to drive the other mechanism, It is characterized in that the user is clearly informed that the recording material is unset.

The other mechanism is a mechanism for carrying out the ejection recovery process of the recording head.

In this case, the presence or absence of the recording material set is detected by a sensor provided in the vicinity of the recording material conveying roller.

The recording head employs an ink jet system.

Further, the recording head has an electrothermal converter as an energy means for ejecting the ink, which ejects the ink from the ejection port by utilizing film boiling generated in the ink by thermal energy. .

[0014]

In the present invention configured as described above, the drive source of the recording material conveying roller also serves as the drive source of the other mechanism, and the conveying roller also drives when the other mechanism is driven. The recording apparatus includes a control unit including a manual sheet feeding mode for feeding the recording material at a position where the leading end of the recording material comes into contact with the conveying roller or in the vicinity thereof to perform a sheet feeding operation. Then, when it is detected that the leading end of the recording material is set at or near the position where the recording material comes into contact with the transport roller, the control means controls so as to prohibit the driving of the other mechanism.

Therefore, when the user sets the recording material at or near the position where the leading end of the recording material contacts the conveying roller, the control means detects that the recording material is set, Since the driving of other mechanisms is prohibited, it is possible to drive only the transport roller.
On the other hand, even when it is necessary to drive the other mechanism, the control means does not drive the other mechanism while detecting the setting of the recording material, and the user does not set the recording material. Clearly release. Then, when the setting of the recording material is no longer detected, the other mechanism can be driven.

[0016]

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

(First Embodiment) In this embodiment, an ink jet printer mounted on a personal computer will be described as a recording apparatus. 1 is a perspective view showing the external configuration of a personal computer equipped with a first embodiment of a recording apparatus of the present invention, FIG. 2 is a side view of the personal computer of FIG. 1, and FIG. 3 is a first embodiment of the present invention. FIG. 4 is a perspective view of the ink jet printer, and FIG. 4 is a perspective view showing the configuration of the automatic paper feeding unit of FIG.

First, the external structure of a personal computer will be described with reference to FIGS.

The personal computer shown in FIGS. 1 and 2 has a keyboard 1 having keys for inputting information such as characters, numbers and other characters, a key for giving various commands, and the like, A display unit 2 mainly including liquid crystal for indicating, a recording device (inkjet printer) 3 for recording on a recording material P such as a supplied recording paper or a plastic thin plate according to image information, and a recording material P 2 to the inkjet printer 3, and a recording material P is formed in a single recording material conveying path formed by rotating the keyboard 1 upward as shown in FIG. Can be fed along the feeding guide 4. Further, as shown in FIG. 2, the inkjet printer 3 has a built-in automatic paper feeder 5 for automatically feeding the recording material P supplied along the feeding guide 4.

Next, a specific structure of the ink jet printer 3 will be described with reference to FIG. In FIG. 3, a conveying roller 6 as a conveying unit conveys the recording material P to the recording unit 7 when the recording material P is supplied by the automatic paper feeding unit 5 or manually.

The recording section 7 records on the recording material P conveyed by the conveying rollers 6. A carrier 8 is movably provided in the recording unit 7, and a head cartridge 9 as a recording unit is mounted on the carrier 8. The head cartridge 9 records an ink image on the recording material P conveyed by the conveying roller 6, and a recording head portion (not shown) of the head cartridge 9 includes a fine liquid ejection port (orifice), The liquid passage and an energy acting portion provided in a part of the liquid passage, and an energy generating means for generating liquid forming energy to act on the liquid in the acting portion are provided.

As the energy generating means for generating such energy, a recording method using an electromechanical transducer such as a piezo element, electromagnetic waves such as a laser are radiated to generate heat, and droplets are ejected by the action of the heat generation. There is a recording method using an energy generating means for causing the liquid to be discharged, or a recording method using an energy generating means for discharging the liquid by heating the liquid with an electrothermal converter such as a heating element having a heating resistor.

Among them, a recording head used in an ink jet recording method for ejecting a liquid by thermal energy has a high density of liquid ejection ports (orifices) for ejecting recording liquid droplets to form ejection liquid droplets. Since they can be arranged, high resolution recording is possible. Among them, the recording head using the electrothermal converter as the energy generating means can easily be made compact, and has the advantages of the IC technology and the microfabrication technology, which have been remarkably improved in technology and reliability in the recent semiconductor field. This is advantageous because it can be used in two parts, high-density mounting is easy, and the manufacturing cost is low.

The carrier 8 can be reciprocated in the axial direction of the guide shaft 13 by the carrier motor 11 via the belt 10. The recording standby position (home position) of the carrier 8 is detected by a home position sensor 12 provided in a part of the movement range. At this time, the recording standby position is a position where the entire liquid ejection port (not shown) provided in the recording head portion (not shown) of the head cartridge 9 mounted on the carrier 8 faces the cap 19. Further, at the recording standby position, as will be described later, there are a cap closed state in which the entire liquid ejection port is covered with the cap 19, and a cap position in which the cap 19 is separated from the entire liquid ejection port. There are two types of states when open.

A discharge roller pair 14 is provided to discharge the recording material P after recording to the outside of the recording apparatus. When the recording of one line is completed by scanning the carrier 8, the recording material P is conveyed by one line by the conveying roller 6 and the recording of the next line is performed. A drive force is transmitted to the pair of discharge rollers 14 by a paper feed motor 15. The drive transmission to the transport roller 6 is performed because an idler gear (not shown) is transmitted to the feed gear 16 and the feed gear 16 and the transport roller 6 are coaxially coupled.

Further, a paper sensor 23 for detecting the presence / absence of a recording material supplied to the conveying roller 6 is provided.

The ejection recovery mechanism section of the recording head section comprises a paper feed motor 15, a feed gear 16, a slide gear 17, a pump gear 18, a cap 19, a cylinder gear 20, and a cylinder 21.

Next, the transmission of the driving force to the discharge recovery mechanism will be described.

In the state shown in FIG. 3, since the part where the feed gear 16 and the pump gear 18 mesh with each other is missing (lacking teeth), even if the paper feed motor 15 is driven and the driving force is transmitted to the feed gear 16, the pump gear is driven. 18 does not drive. Further, since the slide gear 17 is coaxially slidably and rotatably mounted on the conveying roller 6 and separated from the feed gear 16 by the urging force of a slide spring (not shown), the driving force of the paper feed motor 15 is increased. Do not receive Cap 1 at this time
9 is in the cap open position so as not to interfere with the carrier 8.

However, when the end surface of the carrier 8 pushes the end surface of the slide gear 17, the slide gear 17 moves toward the feed gear 16 against the biasing force of the slide spring,
The slide gear 17 and the feed gear 16 contact each other. Teeth (not shown) meshing with each other are provided on the mutual contact surfaces (opposite surfaces of each other), whereby the slide gear 17 is rotated along with the rotation of the feed gear 16 in the arrow C direction.
Rotates. At this time, the carrier 8 triggers the drive start of the pump gear 18, and then moves to the recording standby position of the carrier 8 and stands by. The rotation of the slide gear 17 transmits the rotation to a portion 18b where a part of the pump gear 18 has a large tooth thickness. As a result, when the pump gear 18 rotates a little, the toothless portion of the pump gear 18 moves,
The feed gear 16 and the pump gear 18 directly mesh with each other. When the rotation of the pump gear 18 is started, the cam portion 18a provided on the end surface portion thereof drives the driven portion 21a of the cylinder 21 connected to the cap 19, and the cap 19 is attached to the recording head portion of the head cartridge 9. It moves in the direction of closing the provided liquid discharge port (the direction of arrow A), and then stops after the cap is closed. At this time, the pump gear 18 moves the piston (not shown) in the cylinder 21 in the arrow B direction via the cylinder gear 20. Further, when the feed gear 16 is driven in the direction opposite to the arrow C from the cap closed state, the cap 19 and the piston are respectively moved by the arrow A and the arrow B.
Will move in the opposite direction.

Next, the structure of the recording material feeding device will be described with reference to FIG.

Referring to FIG. 4, the specific structure of the automatic paper feed unit 5 will be described. The automatic paper feed unit 5 has a stopper 30 as a recording material regulating means. The stopper 30 is for positioning the recording material P by abutting the tip of the recording material P. When the recording material P is automatically fed, the stopper 30 moves up and down by a stopper up cam 31 to record the recording material P. It is designed so that it protrudes into the transport path or retracts.

When the stopper 30 projects to the recording material conveying path and is stopped, the automatic feeding section 5 is in the standby position in the automatic feeding state, and the stopper 30 is retracted from the recording material conveying path and stopped. When the automatic sheet feeder 5 is in the manual feed state, the standby position is set. At this time, in either of the standby states, the auxiliary roller 32 and the separation roller 33, which will be described later, are
Each of the feeding guides 4 and a separating pad (not shown) described later.
It is stopped at the position retracted from (inactive position).

Further, when the recording material P is set in the automatic paper feed state, the position where the leading end of the recording material P having a plurality of sheets stacked thereon is abutted against the stopper 30 as described above (the automatic paper feed setting position). ). Further, in the manual feed state, a position at which the leading end of one recording material P abuts on the feeding guide 4 to the nip between the transport roller 6 and the driven roller 6a (the manual feed setting position). ).

Further, there is a preliminary roller 32 as a preliminary conveyance rotary member, and the preliminary roller 32 preliminarily conveys the recording material P stacked at the automatic paper feed set position to the separating section. A separating roller 33 as a separating rotary member is provided, and the separating roller 33 sandwiches the recording material P between a separation pad (not shown) provided on the feeding guide 4 and only the uppermost recording material. Are separately conveyed. Further, a cam portion 34a provided on the auxiliary roller 32 and the auxiliary roller shaft 34 moves between a position (acting position) in contact with the feeding guide 4 and a separated position (inoperative position). In addition, the separation roller 3
3 is moved by a separation roller cam 35 between a position (acting position) in contact with the separation pad and a separated position (inoperative position).

Further, the automatic paper feed motor 3 as a drive source
6, the automatic paper feed motor 36 transmits the drive to the auxiliary roller 32 and the separation roller 33. The driving force of the automatic paper feed motor 36 is transmitted to the auxiliary roller 32 and the separation roller 33 via the two-stage gear 37, the output gear 38, the stopper up cam 31, and the cam gear 39.

As shown in FIG. 5, the cam gear 39 has a gear portion 39a that contributes to the drive transmission of the automatic paper feed motor 36.
In addition to the above, a home position detecting cam portion 39 for transmitting information, which is the basis of the home position of the automatic paper feeding portion 5, to the paper feeding initial sensor 41 via the initial lever 40.
b, a home position detecting groove portion 39c, and an engagement hole portion 39d for engaging with the stopper up cam 31 are provided respectively.

A stepping motor is used as the automatic paper feed motor 36, which is bipolar driven by two-phase excitation and
One lap in 0 steps. Further, the total gear ratio of deceleration from the automatic paper feed motor 36 to the cam gear 39 is 1: 2.
It is set to 56. Further, the auxiliary roller 32 and the separation roller 33 are also configured to rotate once by one rotation of the cam gear 39.

Further, as shown in FIG. 4, a paper feed changeover switch 42 is provided, and the state of the recording material feeding device is set to the automatic paper feed state in which the automatic paper feed unit 5 is used and the automatic paper feed unit. Switch to the manual feeding state where 5 is not used. A paper feed switch 42, a paper feed initial sensor 41, and other electronic components are provided on the substrate 43. This board 4
3 is supported by a main holder 44, and the main holder 44 supports all of the components of the automatic sheet feeding section 5 and is fixed to the recording section 7.

Next, the structure of the control means for controlling the drive of the ink jet printer will be described with reference to the block diagram shown in FIG.

As shown in FIG. 6, the ink jet printer has a CPU (Central Processing Unit) 50, and
The PU 50 is a ROM (read-only memory) 5 described later.
1 and a floppy disk driver (not shown) or the like to read programs and various data, perform necessary calculations and judgments, and control each unit.

The ROM 51 stores various programs for operating the CPU 50, various data necessary for recording font data such as character codes and dot patterns.

A keyboard 1, a display unit 2, an ink jet printer 3, an automatic paper feeding unit 5, etc. are connected to the CPU 50 via an interface (not shown).

A RAM (read / write memory) 52
The RAM 52 is provided with a working area for the CPU 50 to temporarily store the data in the instruction and the operation result, a buffer area for storing the data input from the keyboard 1 or an external interface, and a text for storing the document. It has an area. The RAM 52 is composed of two types: an SRAM that holds the stored contents by a backup means such as a lithium battery even after the power is turned off, and a DRAM that erases the stored contents after the power is turned off.

Next, the paper feeding operation sequence will be described with reference to the flowchart shown in FIG.

When the power source of the ink jet recording apparatus is turned on, the value of the operation completion flag in the operation completion storage area of the automatic sheet feeder 5 stored in the SRAM is determined in step S1. This value is not set (S
RAM = 0) indicates that the drive of the automatic paper feed unit 5 has not been properly completed until the last time, and when set (SRAM = 1), the drive of the automatic paper feed unit 5 last time. Has been properly completed.

When it is determined in step S1 that SRAM = 0 and the driving operation of the automatic paper feeding unit 5 has not been properly completed until the last time, the process proceeds to step S2.

In step S2, it is determined whether or not the paper feed switch 33 is in the manual paper feed state. When it is determined in step S2 that the sheet is in the manual feed state, the process proceeds to step S3, the state of the automatic sheet feeder 5 is initially set to the standby position in the manual sheet feed state, and then the process proceeds to step S5. To do. On the other hand, if it is determined in step S2 that the paper is not in the manual feed state, that is, if it is in the automatic paper feed state, the process proceeds to step S4, and in step S4, the state of the automatic paper feed unit 5 is at the standby position in the automatic paper feed state. Is initialized (hereinafter referred to as “initial removal”), and the process proceeds to step S5.

If SRAM = 1 in the determination in step S1 and it is determined that the drive of the automatic paper feeding unit 5 has been properly completed until the last time, the step S5 is performed.
Transition to. In step S5, the recording material P turns on the paper sensor 23 (paper sensor 23) prior to starting the drive for initial removal of the carrier 8.
Outputs a signal for detecting the recording material P to the outside). When it is determined in step S5 that the paper sensor 23 is ON, the process proceeds to step S6. In step S6, it is determined whether the paper feed changeover switch 33 is in the manual paper feed state. When it is determined in step S6 that the sheet is in the manual feed state, it means that the recording material P is set at the setting position for the manual feed.
Then, the process proceeds to next step S7. In step S7, after clearly indicating to the user that the recording material P should be unset, the process proceeds to step S5.
The same control is performed after step S5. If it is determined in step S6 that the recording sheet P is not in the manual sheet feeding state, that is, in the automatic sheet feeding state, the recording material P may not be completely ejected and may be left in the recording unit 7. The process proceeds to S8, and in step S8,
The recording material P is completely ejected after the feed gear 16 is activated in the direction opposite to the arrow C until the meshing with the pump gear 18 becomes a toothless portion and the cap is opened. The driving of the feed gear 16 connected to the conveying roller 6 is continued in the direction opposite to the arrow C direction, and then the process proceeds to step S10.

If it is determined in step S5 that the paper sensor 23 is not ON, step S5 is performed.
Move to 9. In step S9, in order to shift to the cap open state, the feed gear 16 is driven in the direction opposite to the arrow C until the meshing with the pump gear 18 becomes a toothless portion, and the flow proceeds to step S10. In step S10, the initial removal of the carrier 8 is performed, and the carrier 8 is stopped at the recording standby position.

In the next step S11, it is determined whether or not the state of the paper feed changeover switch 33 is the manual paper feed state. If it is determined in step S11 that the sheet is not in the manual feed state, the process proceeds to step S12, and in step S12, whether a recording command is requested from the keyboard 1 or the like within 15 seconds after the process proceeds to step S12. Is judged. When it is determined in step S12 that the recording command is not requested within 15 seconds, the process proceeds to step S13, the cap 8 is closed in step S13, and the carrier 8 waits. On the other hand, if it is determined that the recording command is requested within 15 seconds, step S1
4, the automatic feeding unit 5 automatically feeds the recording material P in step S14, and then in step S15 of the next stage, recording on the recording material P and discharging the recording material P are performed. After that, the process proceeds to step S10. Then, the same control is performed after step S10. If it is determined in step S11 that the manual sheet feeding state is set, the process proceeds to step S16, and in step S16, the keyboard 1 is moved within 15 seconds after the process proceeds to step S16.
From the above, it is determined whether or not a recording command is requested. If it is determined in step S16 that the recording command is requested within 15 seconds, the process proceeds to step S19, and in step S19, the conveyance roller 6 is driven by a predetermined amount to manually feed the recording material P to be recorded. After the paper is fed, recording is performed on the recording material P and the recording material P is ejected in the next step S20, and the process proceeds to step S10.
Then, the same control is performed after step S10. Also,
When it is determined in step S16 that the recording command is not requested within 15 seconds, the process proceeds to step S17, and in step S17, it is determined whether the recording material P has the paper sensor 23 turned ON. To be judged. In step S17, the paper sensor 23 turns O
If it is determined that it is not N, the process proceeds to step S13, and the same control is performed after step S13. If it is determined in step S17 that the paper sensor 23 is ON, the process proceeds to step S18. In step S18, it is determined again whether or not the recording command is requested. As a result, if it is determined that the recording command is requested, the process proceeds to step S19 and step S19.
The same control is performed from 19 onward. If it is determined in step S18 that the recording command is not requested, the process proceeds to step S21, and in step S21,
The user is clarified to request the release of the recording material P, the process proceeds to step S17, and the same control is performed after step S17.

Therefore, even if the recording material is set at the manual feed position, the recording material is not conveyed to an inappropriate position.

Further, it is possible to feed and record a recording material which is not suitable for automatic feeding.

Further, the automatic paper feeding unit only needs to convey the recording material suitable for automatic paper feeding, and the automatic paper feeding unit can be made inexpensive.

(Second Embodiment) In the first embodiment, the recording apparatus having the automatic paper feeding mechanism has been described. However, even in the recording apparatus having no automatic paper feeding mechanism, the recording material conveying roller is used. Since there is a recording material near the nip between the paper and the driven roller, the same effect can be obtained by the same control as described above, in which the ejection recovery mechanism of the recording head is not driven when the paper sensor is ON. be able to.

Of course, the numerical values set in the first embodiment are not limited to these.

Further, the first switching method is used when the ejection recovery mechanism of the recording head and the recording material conveying roller are driven by the same drive source, and when only the recording material conveying roller is driven. Of course, it is not limited to the examples.

(Third Embodiment) In the first embodiment, the case where the drive source of the recording material conveying roller is the same as the drive source of the ejection recovery mechanism of the recording head has been described.
The drive source of the recording material conveyance roller is the same as the drive source for switching the color head cartridge and the monochrome head cartridge, and when the switching drive between the color head cartridge and the monochrome head cartridge is performed, the recording material conveyance roller is also driven. Even with the configuration of doing
Since the recording material exists near the nip between the recording material conveying roller and the driven roller, the same effect can be obtained by not performing the switching drive between the color head cartridge and the monochrome head cartridge when the paper sensor is ON. Of course, the present invention is not limited to the case where the drive source of the recording material conveying roller is the same as the drive source of the ejection recovery mechanism of the recording head.

(Others) In particular, the present invention is an ink jet recording head for recording by forming flying droplets by utilizing thermal energy among ink jet recording systems.
In a recording device, it has an excellent effect.

With regard to its typical structure and principle, for example, US Pat. Nos. 4,723,129 and 4740 are applicable.
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.

Furthermore, 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 mounted on 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 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 one provided integrally or separately as an image output terminal of information processing equipment such as a word processor or a computer, a copying apparatus combined with a reader, and It may take the form of a facsimile machine having a transmission / reception function.

[0071]

As described above, according to the present invention, the driving source of the conveying roller for the recording material also serves as the driving source of another mechanism, and the conveying roller is also driven when the other mechanism is driven. In the apparatus, when the recording material is set in the manual feed state, the control is made so as to prohibit the driving of the other mechanism, so that the manual feed can be performed easily and surely. Play.

Further, by providing the manual sheet feeding mode, the automatic sheet feeding section only needs to convey the recording material suitable for automatic sheet feeding. Therefore, the automatic sheet feeding section can be an inexpensive automatic sheet feeding section which does not require high performance. It also has the effect of being completed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external configuration of a personal computer equipped with a first embodiment of a recording apparatus of the present invention.

FIG. 2 is a side view of the personal computer shown in FIG.

FIG. 3 is a perspective view of an inkjet printer that is a first embodiment of the recording apparatus of the present invention.

FIG. 4 is a perspective view showing the configuration of the automatic paper feeding unit in FIG.

FIG. 5 is an explanatory diagram showing a configuration of a cam gear and a stopper up cam of the automatic paper feeding unit.

FIG. 6 is a block diagram showing a configuration of a recording material feeding device and a control unit of the recording device.

FIG. 7 is a flowchart showing a paper feeding operation of a recording material.

[Explanation of symbols]

 P Recording material 1 Keyboard 2 Display unit 3 Recording device (inkjet printer) 4 Feeding guide 5 Automatic paper feeding unit 6 Conveying roller 7 Recording unit 8 Carrier 9 Head cartridge 10 Belt 11 Carrier motor 12 Home position sensor 13 Guide shaft 14 Ejection Roller pair 15 Paper feed motor 16 Feed gear 17 Slide gear 18 Pump gear 18a Pump gear cam part 18b Pump gear tooth thickness part 19 Cap 20 Cylinder gear 21 Cylinder 21a Driven part 22 Discharge recovery mechanism part 23 Paper sensor 30 Stopper 31 Stopper up cam 32 Spare roller 33 Separation Roller 34 Spare Roller Shaft 34a Spare Roller Shaft Cam 35 Separation Roller Cam 36 Automatic Paper Feed Motor 37 Two-Step Gear 38 Output Gear 39 Cam Gear 39a Gear 39b the home position detecting cam portion 39c home position detecting groove 39d engagement holes 40 Initial lever 41 paper feeding initial sensor 42 the paper feed changeover switch 43 substrate 44 main holder 50 CPU 51 ROM 52 RAM

Claims (7)

[Claims] 1. A recording apparatus in which a drive source of a recording material conveying roller also serves as a drive source of another mechanism, and the conveying roller is also driven when the other mechanism is driven. A recording apparatus, comprising: a control unit including a manual paper feed mode for feeding a recording material at a position where the leading end of the recording material comes into contact with the transport roller or in the vicinity thereof to perform a paper feeding operation. 2. The manual feed mode of the control means drives the other mechanism when it is detected that the leading edge of the recording material is set at or near a position where it abuts on the conveying roller. The claim 1 is prohibited.
The recording device according to 1. 3. The manual feed mode of the control means detects that the leading edge of the recording material is set at or near a position where the leading end of the recording material comes into contact with the recording material conveying roller, and the other mode is selected. The recording apparatus according to claim 2, wherein when the mechanism has to be driven, the user is clearly informed of the release of the recording material. 4. The recording apparatus according to claim 1, wherein the other mechanism is a mechanism that performs an ejection recovery process of a recording head. 5. The detection of the presence or absence of the recording material set is
The recording apparatus according to claim 4, wherein the recording is performed by a sensor provided near the conveying roller. 6. The recording apparatus according to claim 4, wherein the recording head adopts an inkjet method. 7. The recording apparatus according to claim 6, wherein the recording head serves as an energy unit for ejecting ink, and an electric device for ejecting the ink from an ejection port by utilizing film boiling generated in the ink by thermal energy. A recording apparatus having a heat conversion body.