JP3086307B2 - Serial device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a serial device for performing operations such as reading an image or recording an image by moving a carriage.

[0002]

2. Description of the Related Art A serial recording apparatus is well known for performing a work by serially scanning a carriage. In addition, a reading means is mounted on the carriage, and the reading means is serially scanned to obtain information described in the original. There is a serial reader for reading.

[0003] In the serial reader, for example, as shown in FIG. 8, a carriage 50 is slidably mounted along a guide rail 51, and the carriage 50 is configured to be able to reciprocate by driving a motor 52. At the same time as the serial scanning of the carriage 50, the light source 53 is turned on to irradiate the original 54 with light, the reflected light is received by a photoelectric conversion element (not shown) via the lens 55, and the information described on the original is converted into an electric signal by a signal cable. The information is transmitted to control means (not shown) by 56.

[0004] In such a serial reader,
If the distance between the moving carriage 50 and the document surface fluctuates, accurate reading cannot be performed. Therefore, as shown in the side sectional view of FIG. 9, the carriage 50 fitted to the guide rail 51 hits the apparatus frame 57 by its own weight. The carriage 50 is positioned by sliding so that the sliding piece 58 provided at the contact portion slides while abutting on the frame 57.

[0005]

However, since the signal cable 56 is a so-called ribbon cable in which a plurality of signal lines are covered with heat-resistant vinyl, the heat-resistant vinyl hardens at a low temperature. Therefore, when reading is started by moving the carriage 50 waiting in the state shown in FIG. 10A in the direction of the arrow, a bending habit due to hardening remains in the signal cable 56 as shown in FIG. 10B. (The hatched portion in FIG. 10B). Similarly, when the cable area that was flat in the standby state is bent after the start of recording, the flat habit remains.

A repulsive force F is generated by the bending habit and the flat habit, and the small and lightweight carriage 50 made of a mold or the like floats in the direction of arrow m, and the lens 55
In some cases, out of focus occurs and accurate reading cannot be performed.

[0007] The above-mentioned inconvenience applies not only to the reading device but also to the recording device. For example, in a serial type recording apparatus, the distance between the recording material and the ink ejection surface of the recording head is set to be as small as possible, but the curing of the signal cable connected to the carriage on which the recording head is mounted is hardened. As a result, the above-described repulsive force may be generated, and the distance between the recording head and the recording medium may change.

[0008] Particularly in an ink jet recording apparatus,
In the case of a configuration in which ink is supplied to the recording head from an ink tank installed at a predetermined position in the apparatus main body, in order to connect the ink tank and the recording head by a tube, not only the signal cable but also the curing of the tube is taken into consideration, and the carriage is Is more likely to occur.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems. Even when the signal cable or the like is hardened, it is possible to eliminate carriage unevenness in operations such as reading and recording so that accurate operations can be performed. No serial device is provided.

[0010]

A representative means according to the present invention for achieving the above object is provided with a reading means which is movable in the apparatus main body and reads information described in a document. A reading carriage, a recording carriage movable in the apparatus main body and having recording means for performing recording on a recording material, and a first signal cable for transmitting a signal between the reading means and the apparatus main body A second signal cable for transmitting a signal between the recording means and the apparatus main body, an ink tube for supplying ink, a temperature detecting means for detecting a temperature in the apparatus, the reading means, and recording. Before starting the operation by the means, a determination temperature for determining whether or not to reciprocate both carriages and the number of movements is set individually for each of the reading carriage and the recording carriage. A setting means capable, and having a control means for reciprocating movement of the two carriages in accordance with the determination temperature by signal and said setting means from said temperature detecting means.

[0011]

In the above means, whether or not the carriage is to be fed before starting the work, and the number of times to carry out the feed are individually determined by the recording carriage having the recording means and the reading carriage having the reading means. Can be set to
For this reason, even when different types of cables and tubes are provided corresponding to the respective carriages, it is possible to perform the idle feeding suitable for each carriage, and for example, the signal cable and the like are hardened at a low temperature. As
The cables and the like hardened by the idle feeding suitable for the carriage are softened, and the carriage feeding during the operation does not cause unevenness.

[0012]

Next, an embodiment of the present invention to which the above-mentioned means is applied will be described with reference to the drawings. Here, first, an example in which both the reading carriage and the recording carriage are idle-fed the same number of times is shown as a reference example.

FIGS. 1 to 4 relate to a first reference example. FIG. 1 is a perspective view showing the construction of an image forming apparatus having a reading device R. FIG. Is a control block diagram, and FIG. 4 is a flowchart showing a recording operation procedure.

(Overall Description) First, the overall configuration of the image forming apparatus will be described. This apparatus has a reading device R and a recording device P.

The configuration of the reading device R is such that a reading means 1 as a working means is provided on a reading carriage 2, and the carriage 2 is configured to be able to reciprocate in a main scanning direction (the direction of arrow a in FIG. 1). The carriage 2 is attached to a reading unit 3, and the unit 3 is moved in the sub-scanning direction (FIG. 1).
(In the direction of the arrow b).

Therefore, as shown in FIG. 2, the original 5 is placed on the original platen glass 4 attached to the upper surface of the apparatus with the original side down.
When the copy key (not shown) is pressed and the copy key (not shown) is pressed, the carriage 2 moves in the main scanning direction to read one line of the original, and the information is transmitted to the signal of the first cable. The signal is transmitted to a control system (not shown) via the cable 7. When reading of one line is completed as described above, the carriage 2 is returned to the home position, and the reading unit 3 is moved by one line in the sub-scanning direction, and reads the next line and below in the same manner as described above. .

The configuration of the recording apparatus P is such that a recording means 8 as a working means is mounted on a recording carriage 9 and a recording material 11 is conveyed to a position of the recording means 8 by a recording material conveying means 10. Have been.

Accordingly, when a read signal from the reader R is transmitted via the signal cable 7, the recording material 11 is transported by the transport means 10 in the direction of arrow c in FIG. When the recording carriage 9 is conveyed to the position, the recording carriage 9 reciprocates in the direction of arrow d in FIG. 1, and in synchronization with this movement, the recording means 8 transmits the image signal transmitted via the signal cable 12 as the second cable. And records an image on the recording material 11. When the recording of one line is completed, the recording material 11 is conveyed by one line in the direction of arrow c in FIG. 2 to perform the recording in the same manner, and the recorded recording material 11 is discharged to the discharge tray 13.

When the reading operation by the reading means 1 and the recording operation by the recording means 8 are performed, the control means feeds the carriages 2 and 9 idle before the respective operations, as described later, to read or record. To do.

Next, the configuration of each part of the image forming apparatus will be described in detail sequentially.

First, each section of the reading device R will be described.

(Reading Unit) The reading unit 1 performs a reading operation of optically reading information written on the document 5 and converting the information into an electric signal. As shown in FIG. 2, light is emitted from the light source 1a to the original surface, and the reflected light reaches a photoelectric conversion element 1c such as a CCD via a lens 1b, and is converted into an electric signal by the element 1c.
The image signal is transmitted to the recording device P as an image signal.

(Signal Cable) The photoelectric conversion element 1c is mounted on a substrate 1d.
One end of a signal cable 7 is connected to the board 1d via the carriage 2, and the other end of the cable 7 is connected to a connector of an apparatus main body connected to a control unit described later. The signal cable 7 constitutes a transmission means for transmitting a work element such as a lighting control signal of the light source 1a or an electric signal from the photoelectric conversion element 1c to the control unit. A plurality of signal lines are covered with heat-resistant vinyl. It is configured as a ribbon cable.

(Reading Carriage) The reading carriage 2 moves the reading means 1 in the main scanning direction. The reading means 1 is mounted on the reading carriage 2 and slidably mounted on the main scanning rail 2a. A drive pulley 2 is provided near both ends of the rail 2a.
b and the driven pulley 2c are attached.
A timing belt 2d stretched between b and 2c is connected to the reading carriage 2. Further, a reading main scanning motor 2e is connected to the driving pulley 2b.

Therefore, when the main scanning motor 2e is rotated forward and backward, the carriage 2 is guided by the rail 2a and reciprocates in the main scanning direction.

(Reading Unit) The reading unit 3 moves the carriage 2 in the sub-scanning direction.
b, 2c and the main scanning motor 2e are attached to the reading unit 3. One end of the reading unit 3 in the longitudinal direction is slidably fitted to the sub-scanning rail 14, and the other end is provided with a guide roller 3 a, which is configured to be able to roll on the main body frame 15. I have.

Further, as shown in FIG. 1, a drive pulley 15 and a driven pulley (not shown) are mounted near both ends of the sub-scanning rail 14, and a timing belt 16 stretched between the two pulleys is connected to a reading unit. 3 is connected. Therefore,
When the reading sub-scanning motor 17 connected to the driving pulley 15 rotates forward and backward, the reading unit 3 is guided by the rail 14,
It reciprocates in the sub-scanning direction.

A recording device P is provided below the reading device R. Next, the configuration of each part of the recording device P will be described.

(Recording Means) The recording means performs a recording operation for recording an ink image on the recording material 11, and uses an ink jet recording method here.

In the ink jet recording system, a liquid discharge port for discharging and ejecting a recording ink liquid as flying droplets, a liquid flow path communicating with the discharge port, and a part of the liquid flow path are provided. Discharge energy generating means for applying discharge energy for causing the ink liquid in the road to fly. Then, the ejection energy generating means is driven in accordance with the image signal to eject ink droplets and record an image.

As the ejection energy generating means, for example, a method using a pressure energy generating means such as an electromechanical transducer such as a piezo element, or an electromagnetic energy generating a flying droplet by irradiating an ink liquid with an electromagnetic wave such as a laser and absorbing it. There is a method using a generating means, a method using a thermal energy generating means such as an electrothermal converter, and the like. Among these, a method using a thermal energy generating means such as an electrothermal converter is preferable because the ejection ports can be arranged at a high density and the recording head can be made compact.

In the recording means of this embodiment, a recording head 8a and an ink tank 8b are integrally formed, and the recording head 8a uses a thermal energy generating means using an electrothermal converter as a discharging energy generating means. The ink is caused to undergo film boiling by energization of the converter, causing bubbles to grow in the liquid path, and the ink is ejected from the ejection ports by the growth and shrinkage of the bubbles to perform recording.

The recording head 8a has a temperature detecting means for generating stable film boiling, and performs preheating before recording at a low temperature.

(Recording Carriage) The recording carriage 9 is for reciprocating the recording means 8 in the main scanning direction, and is slidably mounted on a main scanning rail 9a as shown in FIG. The recording means 8 is mounted on a carriage 9.

A drive pulley 9b and a driven pulley (not shown) are attached near both ends of the main scanning rail 9a. A timing belt 9c stretched between both pulleys is connected to the recording carriage 9. I have. Further, a recording carriage motor 9d is connected to the driving pulley 9b.

Accordingly, when the carriage motor 9d is rotated forward and backward, the recording carriage 9 is guided by the rail 9a and reciprocates in the main scanning direction.

(Signal Cable) A signal cable 12 for transmitting an image signal serving as a recording element to the electrothermal transducer of the recording means has one end fixed to the carriage 9 and the other end connected to a control unit described later. Connected to the connector on the main unit. This signal cable 12 also constitutes a transmission means for transmitting an electric signal similarly to the signal cable 7 of the reader R, and is constituted as a ribbon cable in which a plurality of signal lines are covered with heat-resistant vinyl.

(Recording Material Transporting Means) The recording material transporting means 10 is for transporting the recording material 11. As shown in FIG. 2, the cassette 10a is removably attached to the lower part of the apparatus.
Inside, a plurality of recording materials 11 are stacked and stored. The recording material 11 includes a pickup roller 10b and a cassette 10b.
The arrow c in FIG. 1 is provided by the separation claw 10a1 provided at the tip of
Roller pair 10 which are separated and fed one by one in the direction, and are arranged on the downstream side in the recording material conveying direction with respect to the recording head 8a.
It is configured to be conveyed by c and 10d.

(Control means) The driving of the reading device R and the recording device P is controlled by a signal from a control unit. Next, the control system will be described. In FIG. 3, reference numeral 18 denotes a control unit, which is a CPU.
18a, a ROM 18b and a RAM 18c.

The CPU 18a is a central processing unit which reads out programs and various data from a ROM 18b, which will be described later, and information read from the reading device R, performs necessary calculations and judgments, and performs various controls.

The ROM 18b is a read-only memory, and stores various programs (for example, programs shown in the flowchart of FIG. 4) for operating the CPU 18a and various data necessary for recording character codes, dot patterns, and the like.

The RAM 18c is a random access memory, and comprises a text area and the like for storing a working area document for temporarily storing data in command and a calculation result by the CPU 18a.

The control unit 18 receives the read information from the reading means 1 and the temperature information from the temperature detecting means 19, and controls each motor (read main scanning motor 2e, reading sub-scanning motor 17, recording carriage motor 9d, transport roller Each motor driver 21, 2 for driving the transport motor 20) for driving 10c, 10d, etc.
A drive signal is output to 2, 23 and 24, and further a drive signal is output to a head driver 25 for driving the recording head 8a.

(Operation Procedure) Next, an operation procedure when a copy operation is performed by the control unit 18 will be described. In the copying operation, the reading carriage 2 is scanned in the main scanning direction to read the document description information by the reading means 1, and the reading unit 3 is moved in the sub-scanning direction to read the information of one document. At the same time, the recording carriage 9 is scanned and the recording head 8a is scanned.
Is driven according to the read information to perform predetermined recording on the recording material 11.

The flowchart shown in FIG.
When a copy key (not shown) is pressed (S1), the reading carriage 2 and the recording carriage 9 perform n-times empty scanning (S2), and then perform a predetermined copy operation. (S3).

The number n of the empty scans may be appropriately set in accordance with the conditions of each apparatus, the environment of the installation place, and the like so that the cable cured at a low temperature is softened.

According to an experiment, when a signal cable 7 covered with heat-resistant vinyl having a diameter of 1.5 mm and a width of 22.5 mm is connected to a reading carriage 2 weighing about 180 g, the carriage 2 is once scanned once under an environment of 10 ° C. As a result, the cable 7 cured at a low temperature was softened, and the floating and feeding unevenness of the reading carriage 2 could be prevented.

As described above, the carriages 2 and 9 are vacantly scanned before the copying operation is performed to soften the cables 7 and 12 cured at a low temperature, thereby preventing the carriages 2 and 9 from floating even at a low temperature. And accurate reading and recording can be performed.

Next, as a second reference example, the environmental temperature is detected.
FIG. 5 shows a procedure for performing empty scanning of the carriage only when the temperature is low.

In this case, when the copy key is pressed (S
1) The temperature in the device is detected by the temperature detecting means 19 (S
2) If the temperature is as low as t ° C. or less (S
3), the carriages 2 and 9 are scanned n times n times (S
4) The copying operation is performed after the cables 7, 12 cured at low temperature are softened (S5). On the other hand, when the temperature is higher than t ° C., it is determined that the cables 7 and 12 are not cured, and the copying operation is performed without causing the carriages 2 and 9 to perform the idle scan.

The temperature of the recording head 8a is preheated before the recording operation at a low temperature by the temperature detection by the temperature detecting means 19, and the empty scan is performed simultaneously with the preheating.

Here, the temperature t.degree. C. is a temperature at which the cables 7, 12 are hardened and the carriages 2, 9 are lifted and feed unevenness occurs, and are appropriately set according to the conditions of the apparatus and the installation environment.
In addition, the number n of times of the idle scan may be appropriately set according to each condition.

In this manner, when the installation environment temperature is high, the copying operation is performed without performing the empty scan.
Unnecessary operations can be eliminated.

Next, as a third reference example, FIG. 6 shows an operation procedure for changing the number of times of the idle scan according to the environmental temperature.

In this case, when the copy key is pressed (S
1) The temperature in the device is detected by the temperature detecting means 19 (S
2) In step S3, it is determined whether or not the temperature is equal to or lower than t ₁ ° C. If the temperature is higher than t ₁ ° C, the cables 7, 12 are determined not to be cured, and the carriages 2, 9 are scanned empty. The process proceeds to step S7 without performing the copying operation.

However, if the detected temperature t _S is lower than t ₁ ° C, the process proceeds to step S4, and it is determined whether the detected temperature t _S is lower than t ₂ ° C (t ₁ > t ₂ ). If the detected temperature is t ₁ ≧ t _S ≧ t ₂ , the process proceeds to step S 6, where the carriages 2 and 9 are idle-scanned n ₁ times, and then the copy operation is started. On the other hand, if the detected temperature t _S is equal to or lower than t ₂ ° C, the process proceeds to step S5, where the carriages 2 and 9 are idle-scanned n ₂ times, and then the copy operation is started (n ₁ <n).
₂ ).

As described above, by changing the number of empty scans according to the environmental temperature, the hardened cables 7 and 12 can be reliably softened and the empty scan can be minimized.

Next, as a fourth reference example, FIG. 7 shows an operation procedure for performing n-time empty scanning only once when the temperature is low after the power is turned on.

In this case, when the power is turned on, the temperature is detected by the temperature detecting means 19 (S1), and the temperature is detected at t ° C.
In the following cases (S2), when the copy key is pressed (S2)
3), the carriages 2 and 9 are scanned n times n times (S
4) The copying operation is performed after the cables 7, 12 cured at low temperature are softened (S5). When copying the second and subsequent sheets (S6), a copy operation is performed without performing the blank scan.

For example, assuming that the reading width by the reading means 1 or the recording width by the recording head 8a is about 10 mm, when reading or recording A4 size, the carriage scans about 30 times. As a result, the signal cable is sufficiently softened, and even after the apparatus enters a standby state, the temperature inside the apparatus is increased due to heat generation of the power supply or the like, so that re-hardening of the cable can be prevented.

Accordingly, when the temperature inside the apparatus rises after the power is turned on, the number of empty scans can be reduced by operating as described above.

In each of the above-described embodiments, the number n of times when the reading carriage 2 and the recording carriage 9 are idle-scanned and the determination temperature at which the idle scanning is performed are set to be the same. The number n and the determination temperature are set separately for each of the carriages 2 and 9.

Accordingly, in the above-described reference example, the temperature detecting means of the recording head 8a is used as the means for detecting the internal temperature of the apparatus.
Means for detecting the temperature in the vicinity and means for detecting the temperature in the vicinity of the recording means 8 may be provided separately.

In the reference example described above, the reading carriage 2
In the present invention, both the carriages 2 and 9 need not be idle-scanned, and only one of the carriages 2 and 9 need not be idle-scanned. There is also. That is, some cables are not cured even at a low temperature depending on the material of the cable. In such a case, the empty scan is not performed. Even if the cable is hardened, the empty scanning is not performed even if the carriage does not float or feed unevenness due to the weight of the carriage.

In the above-mentioned reference example, an example is shown in which the recording means 8 uses an integrated recording head 8a and ink tank 8b. However, in the present invention, the ink tank is placed at a predetermined position in the apparatus main body. The ink tank and the recording head are connected by a tube. In this case, in addition to the signal cable 12, the tube also constitutes the transmission means, and the tube hardened at a low temperature is softened by the empty scan.

In the above-described example, the recording medium is energized by the electrothermal transducer, and the ink is ejected from the ejection port by the growth of bubbles utilizing film boiling caused by the application of thermal energy by the electrothermal transducer. However, the typical configuration and principle are described, for example, in US Pat.
It is preferable to use the basic principle disclosed in Japanese Patent No. 29740 and No. 4740796. This method can be applied to both the so-called on-demand type and the continuous type. In particular, in the case of the on-demand type, it is arranged corresponding to a sheet or a liquid path holding a liquid (ink). By applying at least one drive signal corresponding to the recording information and providing a rapid temperature rise exceeding nucleate boiling to the electrothermal transducer, heat energy is generated in the electrothermal transducer, and the recording head is driven. This is effective because film boiling occurs on the heat-acting surface, and consequently bubbles in the liquid can be formed corresponding to this drive signal on a one-to-one basis. The liquid is ejected through the ejection opening by the growth and contraction of the bubble to form at least one droplet. When the drive signal is formed into a pulse shape, the growth and shrinkage of the bubble are immediately and appropriately performed, so that particularly excellent liquid ejection can be achieved, which is more preferable.

As the pulse-shaped driving 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 temperature rise rate of the heat acting surface are adopted, more excellent recording can be performed.

As the configuration of the recording head, in addition to the combination of the discharge port, the liquid path, and the electrothermal converter (linear liquid flow path or right-angled liquid flow path) as disclosed in the above-mentioned respective specifications, The present invention also includes a configuration using U.S. Pat. Nos. 4,558,333 and 4,459,600 which disclose a configuration in which a heat acting portion is arranged in a bending region.

Japanese Unexamined Patent Publication (Kokai) No. 59-123670 discloses a configuration in which a common slit is used as a discharge portion of an electrothermal transducer for a plurality of electrothermal transducers, or an aperture for absorbing pressure waves of thermal energy. Unexamined Japanese Patent Application Publication No.
The effect of the present invention is effective even in a configuration based on JP-A-59-138461. That is, according to the present invention, the recording can be performed reliably and efficiently regardless of the form of the recording head.

It is preferable to add recording head recovery means, preliminary auxiliary means, and the like provided as components of the recording apparatus of the present invention since the effects of the present invention can be further stabilized. Specific examples include capping means for the recording head, cleaning means, pressurizing or suction means, preheating means using an electrothermal conversion type or another heating element or a combination thereof,
Performing a preliminary ejection mode in which ejection is performed separately from printing is also effective for performing stable printing.

The type and number of recording heads mounted on the carriage are, for example, not only those provided for one color ink but also a plurality of inks having different recording colors and densities. May be provided in plurality. That is, for example, the printing mode of the printing apparatus is not limited to a printing mode of only a mainstream color such as black, and may be a combination of a plurality of print heads integrally formed. To at least one of the full-color devices.

In addition, in the above-described example, the ink is described as a liquid. However, an ink that solidifies at room temperature or lower and softens or liquefies at room temperature,
Alternatively, in the ink jet recording method, it is common to control the temperature of the ink itself within a range of 30 ° C. or more and 70 ° C. or less so that the viscosity of the ink is in a stable ejection range. It is sufficient if the ink is in a liquid state. In addition, positively prevent the temperature rise due to thermal energy by using it as energy for changing the state of the ink from a solid state to a liquid state, or use an ink that solidifies in a standing state to prevent evaporation of the ink. In any case, the ink is liquefied by the application of the heat energy according to the recording signal, and the ink is liquefied, and the liquid ink is discharged. The present invention is also applicable to a case where an ink that liquefies for the first time by energy is used.

The ink in such a case is disclosed in JP-A-54-5
No. 6847 or Japanese Patent Application Laid-Open No. Sho 60-71260, in which the porous sheet is opposed to the electrothermal converter in a state of being held as a liquid or solid substance in the concave portion or through hole of the porous sheet. It is good. The most effective one for each of the above-mentioned inks is to execute the above-described film boiling method.

Further, as the form of the above-described ink jet recording apparatus, in addition to the copying apparatus combined with the above-described reading apparatus, an apparatus used as an image output terminal of an information processing device such as a computer, and a transmission / reception function can be provided. It may be in the form of a facsimile machine having the same.

Further, an example in which an ink jet recording method is used as the above-described recording means has been described. However, the present invention is not limited to the ink jet recording method. Can be applied to a recording method other than the impact recording method such as the wire dot recording method.

[0077]

As described above, according to the present invention, it is possible to determine whether or not to carry out the idle feeding of the carriage before starting the work, and to determine the number of times of the idle feeding by reading the recording carriage with the recording means and the reading means with the reading means. Because the carriage is set individually and the carriage is scanned as needed, if different types of cables and tubes are provided for each carriage, these cables and tubes can be used at low temperatures. Even if cured, these can be softened by performing idle feeding suitable for each carriage.

Therefore, it is possible to prevent the carriage from being lifted or the feeding unevenness without providing a special weight member for preventing the carriage from floating or providing a heater or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating the configuration of an image forming apparatus.

FIG. 2 is an explanatory cross-sectional view of the image forming apparatus.

FIG. 3 is a control block diagram.

FIG. 4 is a flowchart illustrating a copy operation procedure.

FIG. 5 is a flowchart showing an operation procedure of performing an empty scan only in a low temperature condition.

FIG. 6 is a flowchart showing an operation procedure for changing the number of times of empty scan according to the environmental temperature.

FIG. 7 is a flowchart illustrating an operation procedure of performing an empty scan only before performing the first copy.

FIG. 8 is an explanatory diagram of a serial reading device.

FIG. 9 is an explanatory diagram of a carriage positioning configuration.

FIG. 10 is an explanatory diagram in a case where a bending habit remains in a cable.

[Explanation of symbols]

R: reading device P: recording device 1: reading means 1a: light source 1b: lens 1c: photoelectric conversion element 1d: substrate
2. Reading carriage 2a Main scanning rail 2b, 2c
... pulley 2d ... belt 2e ... reading main scanning motor 3
... Reading unit 3a Guide roller 4 Document platen 5 Document 6 Cover 7 Signal cable 8 Recording means 8a Recording head 8b Ink tank 9 Recording carriage 9a Main scanning rail 9b Pulley 9
c: belt 9d: carriage motor 10: conveying means
10a: Cassette 10b: Pickup roller 10c, 10
d: transport roller 11: recording material 12: signal cable 13
... Ejection tray 14 ... Sub-scanning rail 15 ... Pulley 16 ... Belt 17 ... Reading sub-scanning motor 18 ... Control unit 18a ... CP
U 18b ROM 18c RAM 19 Temperature detecting means
20… Transport motor 21 ～ 24… Motor driver 25… Head driver

Claims (3)

(57) [Claims] A reading carriage which is movable in the apparatus main body and has reading means for reading information written on an original; and a recording carriage which is movable in the apparatus main body and records on a recording material. A first signal cable for transmitting a signal between the reading means and the apparatus body; and a second signal cable for transmitting a signal between the recording means and the apparatus body.
A signal cable and an ink tube for supplying ink; a temperature detecting means for detecting an internal temperature of the apparatus; and whether or not to reciprocate the carriages before starting work by the reading means and the recording means. Setting means for individually setting a judgment temperature for judging the number of times of movement and the reading carriage and the recording carriage; and both of the two in accordance with a signal from the temperature detecting means and a judgment temperature by the setting means. And a control unit for reciprocating the carriage. 2. The serial device according to claim 1, wherein said recording means includes an electrothermal converter for generating thermal energy for ink ejection. 3. The cereal according to claim 2, wherein the recording means discharges the ink from the discharge port by utilizing the film boiling generated in the ink by the thermal energy applied by the electrothermal transducer. apparatus.