JPH01290478A - Serial recorder - Google Patents

Abstract

PURPOSE:To enable an interface connector or the like to be covered securely by a simple construction and prevent penetration of dust or the like, by a construction wherein a connector or switches mounted on one half of a casing are covered by the other half of the casing. CONSTITUTION:A casing has a construction wherein one half 1 thereof on the main body side is provided with a main switch 3, various touch-switches 4 and an interface connector 5, and the other half 2 thereof on the cover side is slidably fitted to an outer surface of the one half 1. The width of the casing can be freely selected by holding through a click action at one of a plurality of positions according to the width of a recording sheet 6 to be used. When this recorder is not used, the halves 1, 2 of the casing can be pushed toward each other to the full and be maintained at minimum-width positions by the click action. In the condition of the minimum width, the interface connector 5 and the switches 4 provided on the half 1 of the casing on the main body side are entirely covered by the half 2 of the casing on the cover side so that dust or the like can not penetrate into the recorder.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has a recording head mounted on a carrier that reciprocates in the direction of the recording sheet, and records while main scanning in a direction perpendicular to the sheet feeding direction. It relates to recording devices such as printers and facsimiles.

[Conventional technology]

This type of serial recording device has a structure in which a guide shaft for guiding the carrier and shafts of feed rollers and guide rollers for feeding recording sheets are supported between the left and right frame members of the device main body, The moving range of the carrier is set to an interval that covers the maximum weight of the recording sheet.

By the way, the maximum weight of a recording sheet is determined by considering the inside of the sheet if there is a possibility of using it, even if it is rare, so it is generally much wider than the width of the sheet that is used on a daily basis. be.

On the other hand, the middle part of the serial recording device is simply a space to ensure the moving distance of the carrier, and as mentioned above, a recording device with a large width is used in consideration of the wide sheet that is rarely used. There was a high possibility that doing so would be uneconomical in terms of space.

Therefore, a configuration has been proposed in which the width of the recording device can be expanded or contracted to match the sheet used.

This expandable serial recording device has a case and a recording mechanism within the case that can be expanded and contracted in the direction of movement of the carrier, and is configured so that the width of the device can be increased or decreased by expanding or contracting the case.

[Problem that the invention seeks to solve]

Even with the above-mentioned expandable recording device, as with normal recording devices, a cover or lid is required to prevent dust from entering through switches, interface connectors, etc. and adhering to circuit boards, etc., causing problems. It is requested that a

However, in the prior art, these cover parts were made into separate parts and the vaginal cover part was attached after the recording device was placed in a storage state, so the structure was complicated and the handling was complicated.

An object of the present invention is to be able to solve the above-mentioned problems of the prior art, and to be able to reliably cover interface connectors, etc. with a simple structure and without the need for extra parts in a telescopic serial recording device, and to prevent the intrusion of dust, etc. The purpose of the present invention is to provide a novel structure that can prevent this.

[Means for achieving the object] The present invention provides a serial recording device in which the width dimension is increased or decreased by expanding and contracting a case and a recording mechanism within the case in the moving direction of the carrier. The above object is achieved by a serial recording device characterized in that when the serial recording device is installed, the connectors or switches attached to one half of the case are covered by the other half of the case.

〔Example〕

The present invention will be specifically described below with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of a serial recording device that is expandable and retractable in the middle direction, and FIG.
3 is a perspective view of the recording apparatus of FIG. 1 in a reduced (stored) state.

In FIGS. 1 to 3, the illustrated serial recording device is
[11
It is constructed so that its dimensions can be increased or decreased, and when stored, it can be reduced to the minimum width as shown in FIG.

The case has a structure in which the other half 2 of the cover side is slidably fitted onto the outer surface of one half 1 of the main body side where the main switch (power switch) 3, various touch switches 4, and interface connectors 5 are provided. has become,
In addition to the A4 size position shown in the figure, click action at multiple positions depending on the width of the recording sheet 6 used, such as small width positions such as B5 size and postcard size, and large width positions such as 84 and A3. It has a structure that allows you to freely select the width dimension by holding it in place.

In addition, when not in use, case 1.
The structure is such that the two can be pushed all the way into each other and held in the minimum middle (stored) position with a click action.

A slit-shaped insertion lower and ejection port 8 for inserting and ejecting the recording sheet 6 are formed on the upper surface of the case 1.2. The length of this insertion lower and discharge port 8 is
It changes according to the 11 dimensions of the case 1.2, and is set to a value suitable for inserting the sheet 6 used.

As is clear from Figures 1 and 3, each case l,
2 is fully pushed in to minimize the width of the recording device (Fig. 3), the interface connector 5 and switches 4 provided in the case l on the main body side are completely covered by the case 2 on the cover side. It is covered to prevent dust from entering the inside of the recording device.

In this way, the cases 1 and 2 fitted together in an expandable manner form a protective cover for the connectors and switches, preventing dust from entering the control circuits in the device from the switches and connectors without the need for separate parts. An unprecedented air defense structure has been constructed.

In addition, when the width of the recording device (case 112) reaches or is close to the minimum width, the main switch 3 attached to the side of the case 1 on the main body side is linked to the movement of the case 2 in the closing direction (as shown in the figure). In this example, it is arranged so that it is turned off (driven by the width of the case 2 on the cover side). As a result, the main switch can be reliably turned off simply by storing the printer after printing is completed, and the problem of forgetting to turn off the power can be eliminated.

Further, a pedestal 10 made of a rubber-like elastic material is attached to the bottom of each case 1.2, and the pedestal 10 attached to the main body is fitted into each case 1, 2 all the way, as shown in FIG. When aligned, it functions as a stopper that restricts the minimum size (during storage).

4 is a perspective view of another embodiment of the extendable and retractable serial recording device, FIG. 5 is a sectional view of the pivot portion of the plate member in FIG. 4, and FIG. FIG. 7 is a perspective view of the recording device in use, and FIG. 7 is a perspective view of the recording device in FIG. 4 when it is not in use (stored).
It is a perspective view of a state.

The embodiment shown in FIGS. 4 to 7 also includes a case 1.2 and a recording mechanism (8
(see figure) is configured so that the width can be increased or decreased by expanding and contracting the carrier in the moving direction of the carrier.

In this embodiment, the case 1.2 is configured to be rotatable about an axis B in the left-right direction and slidable in the left-right direction.
A seat support is formed by placing the plate member 11 in the upright position as shown in FIG. 6, and setting the case 1.2 in the minimum (storage) state as shown in FIG. 7. The structure is such that when the case 1 is folded down (face down on the top surface of the case 1), a cover is formed over the cases 1 and 2.

As shown in FIG. 5, the plate member 11 can be inserted into the cases l, 2 by fitting the beaded edge 12 formed at its base into the circular groove 13 formed along the seat insertion lower of the cases l, 2. It is mounted so as to be slidable in the width direction of 2 and rotatable about an axis B.

FIG. 4 shows that the plate member 11 is erected and the case 1 is
．． 2 is shown stretched out to the specified medium (A4 size),
In the operating condition shown in FIG. 6, the plate member 11 is slid to the center of the sheet insertion lower and set at a position where a recording sheet (not shown) can be held in a well-balanced manner, thereby forming a sheet supporter.

Note that the ball edge 12 of the plate member 11 and the groove 13 of the case 1.2
Although it is possible to slide the seat into place by hand, it is preferable to use a tight fit that can maintain frictional force in the desired position. It is also possible to have a structure that

As explained above, the extendable serial recording device shown in FIGS. 4 to 7 has the addition of a foldable plate member 11 that functions as a seat supporter when in use and as a cover when not in use. This structure is different from the structure of the third rIl embodiment, but has substantially the same structure in other parts.

Therefore, even in the embodiments shown in FIGS. 4 to 7, the embodiments shown in FIGS.
Parts corresponding to each part in the figure are indicated by the same numbers, and detailed explanation thereof will be omitted.

According to the case structures shown in FIGS. 4 to 7, the same effects as those shown in FIGS. 1 to 3 can be obtained, and by providing the plate member 11, the seat supporter and cover can be easily and compactly constructed It is possible to obtain a mechanism that also serves as

FIG. 8 is a perspective view of the internal structure of the expandable and retractable serial recording device according to the present invention, and the structure shown in FIG. 8 is incorporated inside the case 1.2 described in FIGS. 1 to 7. .

In FIG. 8, a left base 15 and a left side plate 16 are fixed to one case 1, and a right base 17 and a right side plate 18 are fixed to the other case 2. Therefore,
The left base 15 and the left side plate 16 are connected to the right base 17 and the right side f! When the case 1.2 expands and contracts, it moves relative to the case 1.2 in the carrier moving direction, and the recording mechanism supported therebetween also expands and contracts.

The left and right side plates 16 and 18 have an extendable feed roller shaft 2.
0 is rotatably supported, and a guide shaft 21 that is extendable and retractable is fixed in front of the feed roller shaft 20 in parallel thereto.

Both ends of the feed roller shaft 20, that is, the side plates 16.18
Sheet feed rollers 22A and 22B made of hard rubber or the like are fixed to the inner portion of the nozzle.

The feed roller shaft 20 and the guide shaft 21 are structured to freely expand and contract in accordance with the increase and decrease in the distance between the side plates 16 and 18 due to the expansion and contraction of the case 12.

FIG. 9 shows a cross section of the telescopic sliding fitting portion of the feed roller shaft 20 and the guide shaft 21, and FIG. 10 shows a cross section of one of the shafts in FIG.

That is, the feed roller shaft 20 has a two-part structure that is slidably connected to each other by dovetail grooves in the axial direction, and each of the left and right halves 20A and 20B has a mating part missing, as shown in FIG. It has a partially arcuate cross-sectional shape.

The left and right shaft portions 20A and 20B are slidably inserted into each other, and a guide roller 24 that supports the middle of the sheet 6 (FIG. 1) is fitted onto the outer periphery of the middle portion of the shaft 20 so as to be slidable in the axial direction. are combined.

Both end surfaces of the guide roller 24 and the left and right feed rollers 2
A compression coil spring 23A123B fitted to the shaft 20 is installed between the inner end surfaces of 2A and 22B. Therefore, even when the shaft 20 expands and contracts, the guide roller 24 receives the force of the springs 23A and 23B from both sides and is elastically held at a predetermined position (usually the central position) on the shaft 20.

On the left and right plate sides 16.18, left and right feed rollers 22A,
A pinch roller 25 (only the left side is shown) which is pressed by a spring force is supported by the pinch roller 22B, and the left and right feed rollers 22A are
, 22B are fixed with paper pans 26A and 26B that form a predetermined gap between them and function as sheet pressers.

The sheet feed rollers 22A and 22B are driven by a sheet feed motor 27 via a shaft 20.

According to the above sheet feeding mechanism, the left and right sheet feeding rollers 22A, 22B, the left and right sheet pressers 26A, 26B,
Since the interval between the left and right pinch rollers 25 is also expanded or contracted depending on the sheet size, sheet feeding force can always be applied to both ends of the sheet 6 in the width direction, allowing smooth and accurate sheeting. delivery can be achieved.

A carrier 28 is slidably guided and supported on the guide shaft 21, and a recording head 31 is mounted on the carrier 28.

The illustrated recording head 31 is an inkjet recording head with an ink tank, and the front surface of the head 31 is provided with ink ejection ports for forming flying ink droplets.

Like the feed roller shaft 20, the guide shaft 21 has a two-part structure that is slidably connected to each other by dovetail grooves in the axial direction, and the left and right halves 21A, 2
As shown in FIG. 9 and FIG. 1O, each of 1B has a partially arcuate cross-sectional shape with the mating fitting portion missing.

In this way, the guide shaft 21 is also configured to be able to expand and contract together with the case 1.2 in accordance with the expansion and contraction of the device in the width direction.

Note that the guide shaft 21 needs to have a cross-sectional shape that does not produce steps as shown in FIG. 9 and FIG. It is sufficient that they are connected so that rotational force can be transmitted, and a step may occur in the middle.

FIG. 11 shows a cross section of a mating connection of another embodiment of the feed roller shaft 20. FIG.

That is, the half portion 20A of the shaft 20 and the half portion 20B of the pond may have a stepped shape similar to a square plunger, a square cylinder, or the like.

In FIG. 8, a carrier motor 32 for reciprocating the carrier 28 is mounted on the carrier 28 itself, and a rack 33
The structure is such that the carrier 28 is moved along the rank 33 by rotating a pinion 34 that meshes with the rank 33.

FIG. 12 is a partial perspective view showing a state in which the pinion 34 on the carrier 28 is engaged with the rack 33.

The rack 33 needs to be extendable and retractable like the guide shaft 21, and in the illustrated example, the extendable rack 33 is constructed of a conhex-type tape measure that can be wound up.

As shown in FIG. 12, this rack 33 has a structure in which engaging holes 35 are formed at a predetermined pitch in a strip plate (usually a steel plate) having an arcuate cross section to prevent buckling.

In FIG. 8, the band plate constituting the rack 33 has its tip end connected to the right side plate 18, its base end connected inside a convex-type case 36 fixed to the base 15, and a mainspring inside the case 36. is constantly biased in the winding direction.

A support roller 37 is provided at a portion of the carrier 28 opposite to the fitting portion of the guide shaft 21, and as the carrier 28 moves, the support roller 37 moves on rails 38A and 38B laid on the upper surface of the base 15.17. I will do it. Therefore, the carrier 28 is connected to the guide shaft 21 and the rail 38.
It is guided and supported by A and 38B, and can reciprocate correctly in a predetermined posture.

A home position sensor 39 and a sheet width sensor 41 are arranged on the upper surfaces of the left and right bases 15, 17 at positions corresponding to both ends of the movement range of the carrier 28.

FIGS. 13 to 15 respectively show second, third, and fourth configuration examples of the carrier 28 driving device.

In the second configuration example shown in FIG. 13, a motor 32 for driving the carrier is fixed on the base 17 on the right side, and a winding drum 42 rotated by the motor 32 and a tension pulley provided on the base 15 on the left side. The carrier 28 is connected to the carrier 28 via a wire 44 which is wound around the carrier 43 and connected to the carrier 28 at both ends.
It is configured to drive.

The tension boob IJ43 is always biased in the direction of arrow C by a spring 45 whose other end is connected to the base 15, so that a desired tension is always applied to the wire 44.

The carrier 28 carrying the recording head 31 with an ink tank is guided and supported by the extendable guide shaft 21 and the rails 38A and 38B, as in the first configuration example shown in FIG.

Note that numbers 46 and 47 in FIG. 13 indicate wire 4, respectively.
4 shows the guide boob that guides the driver.

In the third configuration example shown in FIG. 14, a tensioned wire 48 is used in place of the guide shaft 21 in FIG.

This wire 48 has one end connected to the right side plate 18,
A tension force is always applied to the other end by a spring 49 stretched between the base 15 and the other end.

In the illustrated example, the wire 48 is guided in the middle by a guide pulley 51 pivotally supported on the base 15, and the spring 49
is connected between the pin implanted on the base 15 and the end of the wire 48.

The carrier drive device shown in FIG. 14 differs from the carrier drive device shown in FIG. 8 in that it employs a mechanism for guiding and supporting the carrier 28 using the wire 48 described above instead of the guide shaft 21, but in other respects. The configurations of the two are substantially the same, and corresponding parts are indicated by the same numbers and their explanations will be omitted.

Even with the configuration shown in FIG. 14, if a predetermined tension is applied to the wire 48, the moving range of the carrier 28 can be expanded and contracted in accordance with the expansion and contraction in the middle direction of the recording device, and the carrier 28 can be driven to scan. .

In the fourth configuration example shown in FIG. 15, a motor 32 for driving the carrier is fixed on the base 17 on the right side, and a wire 52 for driving the carrier 28 is driven by a winding drum 42 which is rotationally driven by the motor 32. be done.

The wire 52 is connected to the carrier 28 at both ends and stretched in an endless manner.

That is, the wire 52 wound multiple times around the winding drum 42 is stretched around a movable sheave (tension pulley) 53 provided on the base 15 on the left side, and the wire 52 is stretched between the movable sheave 53 and the base 15. By tensioning the wire 52 with a spring 54, a predetermined tension is always applied to the wire 52 regardless of the expansion and contraction of the device.

In addition, numbers 55A, 55B, 55C, 55 in FIG.
D is a guide pulley for changing the direction of the wire 52.

In the carrier drive device shown in FIG. 15, the carrier 28 is driven and guided by a wire 52.

That is, the wire 52 having the above-mentioned structure is used in place of the extensible guide shaft 21 and the convex type winding rack 33 shown in FIG.

The fourth configuration example shown in FIG. 15 is different from the carrier drive device shown in FIG. 8 in the above-mentioned points, but other parts are substantially the same.
A support roller 37 that moves on rails 38A and 38B laid above is pivotally supported.

Even with the configuration shown in FIG. 15, if a predetermined tension is always applied to the wire 52, the moving range of the carrier 28 can be expanded or contracted in accordance with the expansion or contraction in the middle direction of the recording device, and the carrier motor 3 can be moved.
2, the carrier 28 can be driven for scanning.

In FIG. 8, there is a carrier 2 on the left base 15.
8 reaches the leftmost home position, the ink ejection orifice surface (printing surface) of the recording head (inkjet head) 31
A cap means 57 is provided for sealing.

The camping means 57 includes a cap holder 59 that is slidably and rotatably supported on a guide pin 58 in the carrier movement direction, and a front surface (
A cap 61 made of a rubber-like elastic body is attached to the surface of the recording head 31 (the surface facing the printing surface), and a spring 62 biases the cap holder 59 in the right direction and in the direction in which the cap 61 moves backward (away from the head 31). According to the slide position of the cap holder 59, the cap holder 0 rotation position (separation of the camp 61, pressure contact position)
It is configured with a cam 63 that defines the.

The carrier 28 is placed in the camp holder 59 on the left 8:
A protrusion 65 is provided which engages the hook portion 64 of the carrier when approaching I (home position).

According to the above capping means 57, when the carrier 2 moves to the left end, the hook 64 engages with the protrusion 65, and the cap holder 59, which is spring-biased to the right, moves along the guide bin 58. Move to the left.

As the cap holder 59 moves to the left, the shape of the cam 63, which is also a stop support part, rotates the camp 61 in the direction in which it moves forward and comes into pressure contact with the printing surface (the surface having the ink ejection ports) of the head 31. I am made to do so.

In this way, as the carrier 28 moves to the home position, the printing surface of the recording head 31 is automatically sealed by the cap 61.

When the carrier 28 moves to the right from the home position, the cap 61 automatically separates from the head 31 in a movement opposite to that described above.

In FIG. 8, a control board 67 for controlling the recording device is mounted on the left base 15, and electrical connection between the control board and the head drive circuit on the carrier 28 is made by flexible wiring 68. .

FIGS. 16 and 17 are schematic plan views showing the operation of the guide (slack removing) means for the flexible wiring 68 when the recording apparatus expands and contracts.

In FIGS. 8, 16, and 17, the base 17 on the right side moves with respect to the carrier 28 during expansion and contraction in the middle direction, but there is a part of the flexible wiring 68 on the base 17 that is not connected to the base 17. A protrusion 69 that functions as a matching guide pin is implanted.

A slot 71 is formed in the left base 15 to allow the projection 69 to pass through and move.

When the degree of expansion and contraction of the recording device exceeds a certain level, the flexible wiring 68 comes into contact with other members such as the recording mechanism and the frame member, causing it to curve unnaturally, and when the carrier 28 moves, the flexible wiring 68 rubs against other members. Or bite and ti
(However, in this embodiment, as shown in FIG. 17, when the recording device is retracted, the flexible wiring 68 is pulled together using the protrusion 69 as a guide bin, so that the flexible wiring is not caught or damaged. It can be prevented.

Furthermore, in the serial ink jet recording apparatus shown in FIG. storage condition)
It is configured so that it cannot be reduced to

That is, if the carrier 28 is stopped at a position other than the home position due to a power cut or power outage during printing, and the recording apparatus is shrunk and stored unused, the ink ejection ports of the recording head 31 may be left open for a long time. If the ink is left in the atmosphere, the ink dries and solid components stick to the ink ejection ports, and dust adheres to the ink ejection ports, making it extremely difficult to start up the recording operation when printing resumes. However, in the embodiment shown in FIG. 8, by configuring the recording device to be retracted to the minimum (storage state) only when the carrier 28 is at the home position (head cap position), An attempt is made to solve the problem of clogging of the ink ejection ports.

FIG. 18 is a schematic plan view showing a state in which the recording head 31 is not capped and the recording apparatus cannot be reduced to the minimum size, and FIG. 19 is a schematic plan view showing a state in which the recording head 31 is capped and reduced to the minimum size. .

In FIGS. 8, 18 and 19, the slot 71 of the left base 15 is formed sufficiently long to the left position, and the slot 71 of the right base 17 is A lock pin 72 penetrates and is loosely fitted in a slidable manner.

On the other hand, a bell crank-shaped lock lever 73 is rotatably supported at a position near the left end of the slot 71 of the left base 15.

Further, the carrier 28 is provided with a pressing arm 74 for rotating the lock lever 73 to the open position.

The lock lever 73 is moved by a spring 75 to a position where its stopper portion 76 blocks the slot 71 (FIGS. 8 and 18).
(Figure).

On the other hand, when the carrier 28 reaches the home position (cap position), the pressing arm 74 collides with the lock lever 73, causing the lock lever 73 to be pushed by the spring 75.
Acting portion 77 that rotates to the open position (FIG. 19)
is provided.

A stop member 76 is provided by the lock pin 72, lock lever 73, and pressing arm 74 that is released when the inkjet head (recording head) 31 on the carrier 28 returns to the camp position, and the stop member 76 is released when the inkjet head (recording head) 31 on the carrier 28 returns to the camp position. As shown in FIG. 18, when the cap 31 is in a position outside the cap position, the lock pin 72 is stopped by the stop member (stopper portion) 76 to prevent the recording device from retracting, thereby forming a cap forgetting prevention mechanism. .

In FIG. 8, the sheet width sensor 41 installed on the right base 17 constitutes width detection means for electrically detecting the degree of expansion and contraction of the recording device, that is, the width dimension.

This sheet width sensor 41 is provided within the scanning range of the carrier 28, and is actuated with an appropriate dimension such as optically or magnetically when the carrier 28 scans (moves). The reciprocating range of the carrier 28 from the position, that is, the width dimension (degree of expansion and contraction) of the recording device
connected to the control circuit to detect the

In other words, the width dimension can be calculated from the timing of the detection signal transmitted from the sheet 11 sensor 41 to the control circuit on the control board 67 and the position information of the carrier 28 according to the program.

According to such a sheet width sensor (width detection means) 41, it is possible to eliminate the need for the user to specify the inside of the sheet, and it is also possible to control the margin cent and print format settings of the carrier 28 according to the expansion and contraction of the recording device. It becomes possible to implement it.

FIG. 20 and FIG. 21 are partial perspective views respectively showing a second and third configuration example of width detection means in place of the sheet width sensor 41.

In the second configuration example shown in FIG. 20, a resistor pattern 81 provided on the control board 67 of the left base 15
The common pattern 82 and a leaf spring-like contact 83 attached to the right base 17 and sliding on each of the patterns 81 and 82 constitute a width detecting means.

According to the width detection means shown in FIG. 20, the amount of change in resistance value when the contact 83 is slid on the resistance pattern 81 in synchronization with the expansion and contraction of the recording device (or its case 1.2) The width dimension (degree of expansion/contraction) of the recording device can be detected steplessly.

In the third configuration example of the width detection means shown in FIG. 21, a plurality of push button type switches 85A are provided at predetermined intervals on the control board 67 on the left base 15.

85B, 85C are provided, and the plurality of switches 85A, 85B, 85Cf are provided on the right base 17 according to expansion and contraction.
[A pressing piece 86 arranged to be pressed next is provided, and these switches and pressing pieces constitute a width detecting means (stretch sensor).

In this way, stepwise detection type width detection means is provided which is composed of a plurality of switches 85A, 85B, and 85C that are activated by the expansion and contraction movement of the case 1.2.

According to the width detection means shown in FIGS. 20 and 21, in addition to the effect that the print format setting (margin set) during recording can be simultaneously controlled by only expanding and contracting without specifying the inside of the sheet, the control board 67 Since the detection signal generating section is arranged using the above-described method, extra wiring and members for the wiring are unnecessary, and the effect of reducing space and cost can be obtained.

FIG. 22 is a block diagram of the control system of the expandable and retractable serial recording device according to the present invention described above.

In FIG. 22, a central processing circuit (control circuit) 88 of the recording device is connected to a host 9 via an interface circuit 89.
0, receives command information and recording data, drives the recording head 31 via the head driver circuit 91, drives the carrier motor 32 via the motor drive circuit 92, and further drives the motor drive circuit 93. The sheet feed motor 27 is driven through the motor.

The connection circuit 88 also includes a storage section (R
AM>94 is connected, furthermore, the reference position detection signal of the carrier 28 is input from the home position sensor 39 to the control circuit 88, and the presence/absence detection signal of the recording sheet 6 is input from the sheet sensor 95. Carrier margin detection signals are inputted from a width detection means 96 consisting of a sheet width sensor 41, etc., and the recording operation is controlled based on these detection signals.

FIG. 23 is a flow chart of the margin setting operation of the carrier 28 by the control system of FIG. 22.

In FIG. 23, by turning on the power or operating a key in step 100, initialization is performed in step 101, and then in step 102, the carrier motor 32 is driven to scan and move the carrier 28.

While performing this scanning movement of the carrier 28, step 10
At step 3, it is determined whether the carrier margin sensor (width detection means) 96 is turned on.

If the carrier margin sensor 96 is off, step 1
02 to continue the scanning movement of the carrier 28.

When the carrier margin sensor 96 is turned on, the process proceeds to step 104 to set the right margin of the carrier 28, and in step 105 the print format is set.

At the same time, in step 106, the carrier motor 32 is driven to return the carrier 28 (normally return to the home position), and the margin setting of the carrier 28 is completed.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a serial recording device configured to increase or decrease the width by expanding and contracting the case and the recording mechanism inside the case in the moving direction of the carrier, the width can be adjusted to the minimum width. When the connectors or switches attached to one half of the case are covered by the other half of the case, the structure is simple and does not require any extra parts, and the interface can be established reliably. Can cover connectors etc.
It is possible to prevent the intrusion of dust and the like.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a serial recording device according to an embodiment of the present invention in use, FIG. 2 is a partial perspective view taken from nn in FIG. 1, and FIG. 3 is a recording of FIG. FIG. 4 is a perspective view of a serial recording device according to another embodiment of the present invention; FIG. 5 is a sectional view of the pivoting portion of the plate member in FIG. 4; FIG. 6 is a perspective view of the device in a stored state; A perspective view of the recording device in use in FIG. 4;
7 is a perspective view of the recording device shown in FIG. 4 in a stored state, FIG. 8 is a perspective view showing the internal structure of the recording device according to the present invention, and FIG.
The figure is a sectional view of the insertion fitting part of the guide shaft in Figure 8, and Figure 10.
9 is a sectional view of a half of the shaft in FIG. 9, FIG. 11 is a sectional view of another embodiment of the feed roller shaft in FIG. 8, and FIG. 12 is a sectional view of a carrier drive rank in FIG. 8. Partial perspective view, 13th
14 is a perspective view of a third configuration example of the carrier drive device, FIG. 15 is a perspective view of a fourth configuration example of the carrier drive device, and FIG. 16 is a perspective view of a second configuration example of the carrier drive device. FIG. 17 is a schematic plan view of the flexible wiring slack removing means when expanded, and FIG. 18 is a schematic plan view when FIG. 16 is reduced.
19 is a schematic plan view of the locking mechanism in the locked state, FIG. 19 is a schematic plan view of the unlocked state of FIG. 18, FIG. 20 is a perspective view of a second configuration example of the width detection means, and FIG. FIG. 22 is a block diagram of the control system of the recording apparatus of FIG. 8, and FIG. 23 is a flowchart of the control system margin setting operation of FIG. 22. 1.2--1.--.-case, 3--..--
Main switch, 4-----Switches, 5--Interface connector, 6--
...Recording sheet, 11--Plate member, 16
．． 18...--Frame member (side plate), 20...--
-------Feeding roller shaft, 21----Guide shaft, 22A, 22 B----- Sheet feeding roller, 26A, 26B-------- - Sheet holder, 28-----1...-Carrier, 31--...-
Recording head, 32--Carrier motor, 41...
---Width detection means, 57---Cap means, 6m--111--Cap, 6--Control board, 68---・−
Flexible wiring, 69-------・--Protrusion, 7
2-・-・−・−・−Rockbin, 73・・・−・−・
- Lock lever - 181 - - - - - Resistor pattern,
83---Contact, 85 A, 85 B, 85
C-------Switch, 88------1--
control circuit. Agent Patent Attorney Yasushi Oto Takemef＼ Figure 11 Figure 16 Figure 17 Figure 23

Claims (1)

[Claims] (1) In a serial recording device configured so that the width can be increased or decreased by expanding or contracting the case and the recording mechanism inside the case in the moving direction of the carrier, when the width is minimized, it is attached to one half of the case. 1. A serial recording device characterized in that the connectors or switches are covered by the other half of the case.