JPS63173674A - Recorder - Google Patents

Abstract

PURPOSE:To conduct a manual cutting action to set recording sheets in a short time, by providing a control means manually cutting the leading ends of the two or more set recording sheets at a time. CONSTITUTION:In a manual cutting action, recording sheets 4, 5 set in a device are fed to a predetermined cut position through a recording portion 8 consisting of a platen roller 8a and a recording head 8b. Therefore, the recording sheets 4, 5 can be manually cut by a fixed cutting action with a cutter 9. In addition, if the friction coefficients of the recording sheets 4, 5, the recording portion 8, and the like are so set as to have a fixed relation at this time, the feed of the recording sheets in the manual cutting can be ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a recording apparatus that can set a plurality of roll-shaped recording sheets and selectively transport them to perform predetermined recording.

<Prior art> A conventional recording device stores two types of roll-shaped recording sheets, and records on the recording sheet that matches the size of the received image.
There is a so-called double roll type device.

<Problems to be Solved by the Invention> However, the above-mentioned double-roll type recording device is large-sized and has problems such as manual cutting after setting the recording sheet, which takes time.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and provide a recording apparatus that can perform manual cutting in a short time.

<Means for Solving the Problems> The means of the present invention for solving the above-mentioned conventional problems is to send a plurality of recording sheets wound into a roll, and to selectively convey the recording sheets to a recording section. The recording apparatus is characterized in that it is provided with a control means for manually cutting the leading edges of the plurality of set recording sheets at once.

<Operation> In the manual cutting operation, a plurality of recording sheets set in the apparatus are conveyed to a predetermined cutting position via the recording section. Therefore, it is possible to manually cut multiple recording sheets with a single cutting operation, and if the friction coefficients of the recording sheets, recording parts, etc. are set to have a certain relationship, it is possible to manually cut multiple recording sheets. Record sheet guidance can be performed reliably.

<Embodiment> Next, an embodiment in which the above means is applied to a double roll type facsimile machine will be described.

FIG. 1 is a perspective explanatory view of the first housing A and the second housing B in an open state, FIG. 2 is a cross-sectional explanatory view thereof, and the third
The figure is an explanatory cross-sectional view when both the housings are closed.

In the figure, a first casing A serving as the main body of the device and a second casing B serving as its lid are pivotally attached to each other by a shaft 1, and are configured to be openable and closable around the shaft 1. Further, a spring 2 is provided on the shaft 1 serving as the center of rotation, and hooks 3 that lock each other are provided at the open ends of the casings A and B, and when the hooks 3 are released from the lock, The second housing B is configured to be released from the first housing A by the bias of the spring 2.

The first casing A has sheet rolls 4a of various sizes in which recording sheets 4 and 5 are wound in a roll shape.

Two drop-in type roll holders 6.7 are provided in parallel, each of which can accommodate the rolls 5a individually.

The recording sheet 4 stored in this roll holder 6.7,
5 is conveyed to the recording section 8 by a selection signal from the control section as shown in the block diagram of FIG. 7, a predetermined image is recorded in the recording section 8, and the recording sheet after recording is The image is cut from the rear end by a cutter 9 provided in the first casing A, and is ejected from the apparatus by a pair of ejection rollers 10 also provided in the first casing A.

The recording section 8 includes a platen roller 8a that conveys the recording sheet 4.5 at a constant speed, and as shown in FIG. A line-type recording head 8b.

The platen roller 8a is disposed in the first casing A, the recording head 8b is disposed in the second casing B, and both casings A,
When B is closed, the two are pressed against each other by a pressing spring 8C attached to the back surface of the recording head.

Incidentally, the relationship between the coefficient of friction between the recording section 8 and the recording sheet 4.5 is as shown in FIG.
．． The friction coefficient between the recording sheet 4.5 and the platen roller 8a is μ1, the friction coefficient between the recording sheet 4.5 and the platen roller 8a is μ2, and the friction coefficient between the recording sheet 4.5 and the platen roller 8a is
If the friction coefficient between the two is μ3, then each friction coefficient μm depends on the device environment, etc.

μ2. Even if the value of μ, fluctuates somewhat, μ! 〈μ2(
The materials of each member are selected to maintain the μ relationship.

The recording sheets 4 and 5 are each conveyed to the recording section 8 by a pair of feed rollers serving as feed members, and the recording sheets 4 and 5 are stored in a roll holder (hereinafter referred to as "first holder") 6 that is closer to the recording section. A sheet presence/absence detection sensor 13a and a sheet width detection sensor 13b are provided via a sheet guide 12 between the feed roller pair 11 that conveys the sheet and the platen roller 8a. Further, the feed roller pair 14 that conveys the recording sheet 5 stored in the roll holder (hereinafter referred to as "second holder 1") 7 that is farthest from the recording unit 8 is located on the second housing B side, and is located between the recording head 8b and the second roller holder 7. A sheet presence/absence detection sensor 16a and a sheet width detection sensor 16b are provided between the feed roller pair 14 and the recording head 8b via a sheet guide 15.

The platen roller 8a, cutter 9, and feed roller pair 11.14 are configured to be driven and rotated by individual drive motors 17a, 17b, 17c, and 17d, respectively, as shown in FIG. Furthermore, when the conveying force of the feed roller pair by the motor, especially the conveying force of the feed roller pair 14 is f, and the head pressing force by the pressing spring 8C is N, the relationship between the two satisfies the relationship f>μmN. It is set to .

Reference numeral 18 in FIG. 3 is a document transport system, in which the document 19 placed on the document table 18a formed on the top surface of the second housing B and guided on both sides by document side guides 18b is separated. The sheets are separated one by one by a roller 18c, and are transported at a constant speed to the left side of the drawing by a transport roller 18d.
The paper is configured to be discharged onto a discharge tray 18r by a discharge roller 18e.

Also, while the original 19 is being conveyed, the original reading system 20
The reflected light passes through a plurality of mirrors 20b and lenses 20c to an image reading element 20d such as a CCD, where the image of the document 19 is read, and the image information is stored in a predetermined recording system. configured to be transmitted.

Next, the operation of the apparatus configured as described above will be explained, for example, in the case where an A4 size recording sheet 4 is placed in the first holder 6 and an 84 size recording sheet 5 is placed in the second holder 7.

First, when setting the sheet roll, use hook 3.
Release the lock to open the second casing B, and then remove the first holder 6.
A sheet roll 4a is stored in the sheet roll 4a, and the leading edge of the sheet is passed between a pair of feed rollers 11 to reach near the leading edge of a sheet guide 12. Similarly, a sheet roll 5a is stored in the second holder 7, and the leading edge of the sheet is passed between the pair of feed rollers 14 to reach near the leading edge of the sheet guide 15.

Next, the second housing B is closed, a manual cutting operation is performed to trim the leading ends of the recording sheets 4.5, and the recording sheets 4.5 are brought to a predetermined standby position and placed in a standby state.

This operation is explained in the timing chart of FIG.
This will be explained with reference to the flowchart in FIG.

First, in step S1, the feed roller pair 14 and the platen roller 8a are driven in the direction of the arrow in FIG.
The leading end of the paper is conveyed from the standby position to the recording section 8. When the recording sheet 5 is further conveyed by a predetermined amount, the feed roller pair 11 is driven in step S2 to start conveying the recording sheet 4, and the leading edges of the recording sheet 4 and the recording sheet 5 pass the discharge roller pair 10 in step S3. The two sheets 4.degree. 5 are conveyed at the same time until the recording sheets 4 and 5 are cut at the same time by the cutter 9 in step S4.

Further, the two recording sheets cut in step S5 are discharged out of the apparatus by the discharge roller pair 10, and the platen roller 8a, the feed roller pair 11° and the feed roller pair 14 are rotated in the opposite direction, and the recording sheets are 4 and the recording sheet 5 are each rewound to a predetermined standby position and placed in a standby state.

In the manual cutting operation described above, the recording sheet 5 is conveyed together with the recording sheet 4 through the recording section 8 as shown in FIG. 5. At this time, the conveying force F of the recording sheet 5 by the platen roller 8a is μ2N−μ,N, and both friction coefficients μm and μ2 are μ as mentioned above.
Since m<μ2, normally F>0, and the recording sheets 4 and 5 are conveyed with relatively no slippage.

Here, suppose the friction coefficient μ2. If the relationship of μ2 is reversed for some reason, the recording sheet 5 on the recording head 8b side will slip with the recording sheet 4 and will not be conveyed. In that case, the timing of conveying the recording sheet 4.5 is further shifted, and the leading edge of the recording sheet 5 is first moved to the platen roller 8.
If the image recording sheet 4.5 is conveyed to the cutting position of the cutter 9 by the roller a and then conveyed to the cutting position by the platen roller 8a, the image recording sheet 4.5 is surely conveyed to the cutting position.

Next, when rewinding the recording sheet 4.5, since the conveying force f of the feed roller pair 14 is set to <r> μmN as described above, the platen roller 8a
The sum F of the conveyance force F of the feed roller pair 14 and the conveyance force f of the feed roller pair 14
+f is the friction coefficient lI between the recording sheets 4.5,
Even if it is xQ, it still has a positive value and is definitely rewound.

Therefore, record sheet 4.5 in manual cut operation
The conveyance of the recording sheet 4.5 is performed stably in any case, and manual cutting of the recording sheet 4.5 is performed in one cutting operation. By this manual cutting, record sheet 4.
By controlling the amount of rotation of the platen roller 8a and the pair of feed rollers 11 and 14, the leading edge of the recording sheet can be brought to an accurate standby position.

The manual cutting operation described above is performed by the control section shown in the block diagram of FIG. That is, the motors 17a+ 17b+ 17c are controlled by the motor controller and motor driver according to signals from the CPU.

17d, and this driving drives the platen roller 8a, the feed roller pair IL 14, and further the cutter 9 as described above.

Next, when recording, if A4 size image information is received, the sheet width detection sensor 13b detects that the recording sheet 4 is A4 size, and the
The printers 17a and 17b are driven to rotate the print roller pair 11 and the platen roller 8a in the direction of the arrow in FIG. 3, thereby conveying the recording sheet 4 to the recording section 8. The recording sheet 4 is conveyed at a constant speed by a platen roller 8a, and a received image is recorded by a recording head 8b that generates heat according to image information.

When the recording of the image information received as described above is completed, the recording sheet 4 is conveyed until the trailing edge position of the image reaches the cutter 9 and is cut, and the recorded recording sheet 4 is sent out of the apparatus by the ejection roller pair IO. At the same time, the platen roller 8
a and the feed roller pair 11 are rotated in the direction opposite to the arrow in FIG. 3 to rewind the leading edge of the recording sheet 4 to the standby position and put it in a standby state.

If the received image is B4 size, the sheet width detection sensor 16b detects that the recording sheet 5 is 84 size, rotates the feed roller pair 14 and the platen roller 8a, and performs the same operation as described above. Make a record.

The recording operation described above is also driven and controlled by the control section shown in FIG.

Other Embodiments In the above embodiments, a so-called double roll type recording device that accommodates two sheet rolls was described.
The present invention can be similarly applied to a recording device that accommodates three or more sheet rolls.

Further, in the above embodiment, the platen roller 8a and the feed roller pair 11.1 are used as members for conveying the recording sheet 4.5.
Although an example is shown in which a roller-shaped member such as No. 4 is used, these are not limited to a roller-shaped member, and may be, for example, a rotating belt.

<Effects of the Invention> As described above, the present invention cuts multiple recording sheets at once when performing manual cutting.
Manual cutting operations can be performed on the set recording sheets in a short time, and the timing of conveying multiple recording sheets can be shifted when performing the above operations.
By appropriately setting the relationship between the frictional forces of each part, the recording sheet can be conveyed more reliably and accurately.

[Brief explanation of the drawing]

Fig. 1 is a perspective explanatory view with the first and second casings open, Fig. 2 is a cross-sectional explanatory view of Fig. 1, and Fig. 3 is a cross-sectional explanatory view with both cylinders closed. , Figure 4 is an explanatory diagram of the relationship between the coefficient of friction between each member in the recording section, Figure 5 is an explanatory diagram of the driving force transmission system, and Figure 6 (A) is the timing of each motor during manual cutting operation. FIG. 6(B) is a flowchart of the manual cutting operation, and FIG. 7 is a block diagram of the control section. A is the first housing, B is the second housing, l is the shaft, 2 is the spring, 3 is the hook, 4.5 is the recording sheet, 4a and 5a are sheet rolls, 6 and 7 are roll holders, 8 is the recording section , 8a is a platen roller, 8b is a recording head, 8c is a spring, 9
is a cutter, 10 is a pair of discharge rollers, 11 is a pair of feed rollers, 12 is a sheet guide, 13a is a sheet presence/absence detection sensor, 13b is a sheet width detection sensor, 14 is a feed roller pair, 15 is a sheet guide, 16a is a sheet presence/absence detection sensor. Sensor 16b is a sheet width detection sensor 17a
, 17b. 17c and 17d are motors, 18 is a document conveyance system, and 18a
18b is a document placement table, 18b is a document side guide, 18c is a separation roller, 18d is a transport roller, 18e is a discharge roller,
18f is a discharge tray, 19 is a document, 20 is a document reading system, 20a is a light source, 20b is a mirror, 20c is a lens,
20d is an image reading element.

Claims (3)

[Claims] (1) In a recording device in which a plurality of recording sheets wound in a roll are set and the recording sheets are selectively conveyed to a recording section for recording, the leading edges of the plurality of set recording sheets are set at one time. A recording device characterized by being provided with a control means for manual cutting. (2) The recording section is configured by pressing a platen and a recording head into pressure contact, and the friction coefficient between the recording sheets is larger than that between the recording head and the recording sheet, and further, the friction coefficient between the recording sheets is larger than that between the recording sheets. The recording apparatus according to claim 1, wherein the friction coefficient between the recording sheet and the platen is set to be large. (3) The recording apparatus according to claim 1, further comprising means for shifting the timing of conveying the respective recording sheets.