JP3236101B2 - Printing apparatus, facsimile apparatus, and control method of printing apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording on a recording medium by driving recording means based on transferred image information, a facsimile apparatus having the recording apparatus, and control of the recording apparatus. It is about the method.

[0002]

2. Description of the Related Art In general, a recording apparatus such as a printer, a copying machine, a facsimile or the like drives an energy generator of a recording head on the basis of transferred image information.
It is configured to record an image composed of a dot pattern on a recording medium such as paper or a plastic thin plate.

[0003] The recording apparatus can be classified into an ink jet system, a wire dot system, a thermal system, a laser beam system and the like according to the recording system. Also, according to the configuration of the recording mechanism, it is classified into a full multi-type and a serial type, and the full multi-type has a recording unit over the entire recording width, and performs recording by moving a recording sheet in the sub-scanning direction. The serial type scans a recording unit mounted on a carriage movable in a main scanning direction and performs recording by moving a recording sheet in a sub-scanning direction.

Conventionally, in a full multi-type recording apparatus using a thermal method, as shown in FIG. 5, a roll-shaped heat-sensitive recording sheet 51 is conveyed by a platen roller 50, and the recording sheet 51 is moved by a recording head 52. An image is formed by selective heating, and the image is cut from the rear end of the image by a cutter 53 and discharged.

In the above-described configuration, the guides 54 and the guides 54 are provided between the platen roller 50 and the cutter 53 so that the sheet 51 after recording is surely conveyed between the movable blade 53a and the urging blade 53b.
55 are provided. A roll sheet 51a formed by winding the heat-sensitive recording sheet 51 in a roll shape is stored in a roll holder 56 in a drop-down manner.

[0006]

However, in the conventional recording apparatus, when the heat-sensitive sheet roll 51a is stored in the roll holder 56, the image-recording surface of the heat-sensitive recording sheet 51 is stored toward the recording head 52. You may have to store it upside down when you need to
The image may not be recorded on the heat-sensitive recording sheet 51 due to 52.

Further, there is a possibility that a sheet roll other than the heat-sensitive recording sheet is stored in the roll holder 56, and there is a possibility that an image is not recorded on the recording sheet by the recording head 52.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and it is intended to erroneously load a heat-sensitive sheet roll into a roll holder or load a sheet roll other than a heat-sensitive recording sheet into a roll holder. It is intended to prevent.

[0009]

According to the present invention, there is provided a recording apparatus for recording an image on a heat-sensitive sheet drawn from a heat-sensitive sheet roll wound into a roll. A loading section in which the thermal sheet roll is loaded; transport means for transporting the thermal sheet drawn from the thermal sheet roll loaded in the loading section; and a transport path through which the thermal sheet is transported. A thermal recording head that is installed at a position facing the transporting unit and is capable of recording on an image recording surface that is one surface of the thermal sheet; and a thermal transport head downstream from the thermal recording head and the transporting unit. Detecting means provided in the side conveyance path, detecting whether or not the pulled-out thermal sheet is present at a position facing the detecting means, and detecting the thermal sheet A detection unit for performing using a reflective optical sensor detects whether the recording has been made, the cover portion for opening and closing time of loading of the heat-sensitive sheet roll,
A display unit for displaying a state of the recording apparatus, wherein a thermal sheet roll is loaded in the loading unit, the thermal sheet is pulled out from the thermal sheet roll, and the cover unit is closed. a) the detection means detects whether or not the pulled-out heat-sensitive sheet is present at a position facing the detection means; and (b) the drawn-out heat-sensitive sheet is present at a position facing the detection means. If not,
(C) when the drawn-out heat-sensitive sheet is present at a position facing the detection means, the conveyance means is operated in accordance with an operation from an operation unit. And the recording operation on the thermal sheet by the thermal recording head is performed, and (d) after the recording operation on the thermal sheet by the thermal recording head, the detecting unit comprises: It is detected whether or not recording has been made on the surface facing the detecting means. (E) If no recording has been made on the surface of the thermal sheet facing the detecting means, the thermal sheet roll should be reloaded. Is displayed on the display unit, and (f) when the recording is performed on the surface of the heat-sensitive sheet facing the detection unit, To continue the conveyance of the heat sheet, characterized in that.

[0010] In order to achieve the above object, a control method of a recording apparatus according to the present invention is characterized in that a heat-sensitive sheet roll loaded in a roll and a heat-sensitive sheet roll loaded in the load section are used. Conveying means for conveying the drawn-out heat-sensitive sheet, and a conveying path along which the heat-sensitive sheet is conveyed, installed at a position facing the conveying means, and on an image recording surface which is one surface of the heat-sensitive sheet. A thermal recording head capable of recording, and a detecting unit installed in a transport path downstream of the thermal recording head and the transport unit in the transport direction, wherein the thermal head is pulled out to a position facing the detecting unit. Detection of the presence or absence of a thermal sheet,
Detecting means for detecting whether or not recording has been performed on the surface of the heat-sensitive sheet using a reflective photosensor; a cover for opening and closing when loading the heat-sensitive sheet roll; and a state of the recording device. And a display unit for controlling the recording apparatus having a heat-sensitive sheet roll loaded in the loading unit, the heat-sensitive sheet is pulled out from the heat-sensitive sheet roll, and the cover unit is closed. At this time, (a) the detecting means detects whether or not the pulled-out heat-sensitive sheet is present at a position facing the detecting means, and (b) the detected heat-sensitive sheet is positioned at a position facing the detecting means. If no sheet is present, the display section indicates that the withdrawal amount of the heat-sensitive sheet should be increased, and (c) the drawn-out heat-sensitive sheet is positioned at a position facing the detection means. When the heat-sensitive sheet is present, the conveyance of the heat-sensitive sheet is started by the conveyance means in accordance with the operation from the operation unit, and the recording operation on the heat-sensitive sheet is performed by the heat-sensitive recording head. After the recording operation, the detecting means detects whether or not recording has been performed on the surface of the heat-sensitive sheet facing the detecting means, and (e) recording has been performed on the surface of the heat-sensitive sheet facing the detecting means. If not, a message indicating that the heat-sensitive sheet roll should be reloaded is displayed on the display unit. (F) If the heat-sensitive sheet has been recorded on the surface facing the detection means, The recording device is controlled so that the conveyance of the heat-sensitive sheet is continued.

[0011]

According to the above configuration, erroneous loading of a recording medium wound in a roll shape is prevented, and normal recording can be performed.

[0012]

Next, an embodiment of the recording apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a schematic configuration of a facsimile apparatus using a thermal type recording means, FIG. 2 is an explanatory view schematically showing a schematic configuration of an image recording system in the facsimile apparatus, and FIG. It is the schematic which looked at the system from the upper surface.

The overall configuration of the facsimile apparatus according to this embodiment will be described. As shown in FIG. 1, the facsimile apparatus includes a document transport system A, an image reading system B, and an image recording system C.

First, the document transport system A will be described. The document conveyance system A preliminarily conveys a plurality of documents G stacked on the upper surface of the recording cover 21 by a preliminary conveyance roller 22b pressed against a separation pressing piece 22a, and separates and feeds one by one by a separation roller 23b pressed against a separation friction piece 23a. Then, the feeding roller 24b pressing the original G against the pressing roller 24a and the discharging roller 25 pressing the original G against the pressing roller 25a.
It is configured to be conveyed in the direction of arrow a by b and discharged onto the discharge tray 26. The separation pressing piece 22a and the separation friction piece 23a
The pressing rollers 24a and 25a are pressed by the leaf springs and are in pressure contact with the rollers 22b, 23b, 24b and 25b.

Next, the image reading system B will be described. The image reading system B is configured to optically read the image surface of the document G being conveyed from the feed roller 24b to the discharge roller 25b. LED array as a light source as shown in FIG.
27 irradiates light onto the image surface of the document G via a document glass 28, and reflects the reflected light (light image) to a plurality of mirrors 29a,
The light is reflected by 29b and 29c and guided to an image forming lens 30, and the image forming lens 30 forms an image on a CCD 31 which is an optical conversion element and converts the image into an electric signal. The image information of the document G converted into the electric signal is recorded on the recording sheet S by the image recording system C in the facsimile apparatus in the copy mode, and is recorded in the recording system of another machine in the facsimile mode (transmission mode). It is configured to transmit. The image reading system B is unitized as an optical unit.

Next, the image recording system C will be described. The heat-sensitive recording sheet S is a roll sheet formed by winding a long sheet into a roll, and is stored in a roll holder 32a of the main body frame 32 in a drop-down manner. The recording sheet S is conveyed in the direction of arrow b by a platen roller 33 that is rotated by a motor (not shown) as a driving source. At this time, the thermal recording head 34 pressed against the platen roller 33 in synchronization with the sheet conveyance operation generates heat in accordance with an electric signal (image information of the original G) sent from the image reading system B, Recording is performed on the recording sheet S every dot. After recording, the recording sheet S is guided by the guide member 3.
It is configured to be guided to a cutter unit 37 by 5 and 36, cut from the rear end of the image, and stacked on a reversing tray 38.

The guide members 35 and 36 are provided between the platen roller 33 and the cutter unit 37 so that the recording sheet S after recording is reliably conveyed to the cutter unit 37. The guide member 35 is formed integrally with a part of the main body frame 32, and the guide member 36 is formed integrally with a part of the recording cover 21. Therefore, when the sheet roll Sa is loaded and when the recording sheet S is set,
Since the sheet conveying path formed by the guide members 35 and 36 is widely opened, the work is facilitated.

The guide member 36 is provided with a reflection type photo sensor 39 which is a detecting means for detecting the image recording surface of the recording sheet S and the type of the recording sheet S. As shown in FIG. 3, the sensor 39 is installed so as to be located substantially at the center of the apparatus.

Next, a method of determining the image recording surface of the recording sheet and the type of the recording sheet will be described with reference to a flowchart shown in FIG.

First, it is assumed that the apparatus is in a standby state for exchanging the sheet roll Sa. In step S21, the user opens the recording cover 21, and in step S22, loads the sheet roll Sa into the roll holder 32a and pulls out the leading end of the sheet roll Sa. Next, when the user closes the recording cover 1 in step S23, the reflection type photosensor 39 determines black and white in step S24. If it is determined that the sheet roll Sa is black, an alarm is sounded by a speaker (not shown) in step S25, a message indicating that the sheet roll Sa is not set correctly is displayed on the display unit E on the operation unit D, and the amount of the sheet roll Sa pulled out is displayed to the user. Is increased, and replacement of the sheet roll Sa is urged.
Return to 21. On the other hand, in step S24, the reflection type photo sensor 39
Is determined to be white, the process proceeds to step S26.

In step S26, when the user presses the start key 40 on the operation unit D, the recording sheet S is conveyed by the platen roller 33 in the direction of arrow b, and
The center of 34 is energized for a certain time. Then, the process proceeds to step S27, where the reflection type photo sensor 39 determines whether or not recording has been performed on the recording sheet S.

If the photosensor 39 determines that the sheet is white, the sheet roll Sa is a heat-sensitive recording sheet, but its image recording surface is not set to the recording head 34 side. This means that the sheet roll is loaded, an alarm is sounded by a speaker (not shown) in step S28, the fact is displayed on the display unit E on the operation unit D, and the user is prompted to reload the sheet roll Sa. It returns to S21.

On the other hand, if the photo sensor 39 determines that the sheet roll is black, it means that the sheet roll Sa is a heat-sensitive recording sheet and has been set correctly, so that the recording sheet S is conveyed as it is, and the recording portion has passed the cutter section 37. Meanwhile, the recording sheet S is cut by the cutter unit 37 and stacked on the reversing tray 38. Then, the leading end (recording sheet S) of the cut sheet roll Sa rotates the platen roller 33 in the reverse direction, returns by a distance equivalent to the interval between the recording head 34 and the cutter unit 37, enters a recording standby state, and performs a series of operations. finish.

Accordingly, erroneous loading of the sheet roll in which the heat-sensitive recording sheet is wound in a roll shape can be prevented, and normal recording can be performed.

[0025]

As described above, according to the present invention,
It is possible to prevent erroneous loading of the thermal recording sheet wound in a roll shape and loading of a sheet roll other than the thermal recording sheet,
Normal recording can be performed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of an embodiment of a recording apparatus according to the present invention.

FIG. 2 is an explanatory diagram schematically showing an image recording system of the recording apparatus.

FIG. 3 is an explanatory diagram of the image recording system viewed from above.

FIG. 4 is a flowchart illustrating an operation of the recording apparatus when replacing a sheet roll.

FIG. 5 is an explanatory diagram of a conventional technique.

[Description of References] A: Document transport system, B: Image reading system, C: Image recording system, D
... Operation unit, E ... Display unit, G ... Original document, S ... Recording sheet, S
a: sheet roll, 21: recording cover, 22a: separation pressing piece, 22b: preliminary conveyance roller, 23a: separation friction piece, 23b ...
Separating roller, 24a: pressing roller, 24b: feeding roller, 25a
… Pressing roller, 25b… Discharge roller, 26… Discharge tray, 27…
LED array, 28 ... original glass, 29a, 29b, 29c ... mirror, 30 ... imaging lens, 31 ... CCD, 32 ... body frame, 32a ... roll holder, 33 ... platen roller, 34 ...
Recording head, 35, 36 ... guide member, 37 ... cutter section, 38
... reversing tray, 39 ... reflective photo sensor, 40 ... start key

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B41J 2/165

Claims (3)

(57) [Claims] 1. A recording device for recording an image on a heat-sensitive sheet pulled out of a heat-sensitive sheet roll wound in a roll shape, comprising: a loading section in which the heat-sensitive sheet roll is loaded; Conveying means for conveying the heat-sensitive sheet drawn from the loaded heat-sensitive sheet roll; and a conveying path along which the heat-sensitive sheet is conveyed, which is installed at a position facing the conveying means, and one of the heat-sensitive sheets A thermal recording head capable of recording on an image recording surface that is a surface, and a detecting unit installed in a transport path downstream of the thermal recording head and the transport unit in the transport direction, and facing the detecting unit. The detection of whether or not the pulled out heat-sensitive sheet exists at the position where the heat-sensitive sheet is to be performed and the detection of whether or not the recording has been performed on the heat-sensitive sheet surface are performed using a reflection type photo sensor. Output means, a cover for opening and closing when loading the heat-sensitive sheet roll, and a display unit for displaying a state of the recording device, wherein the heat-sensitive sheet roll is loaded on the loading unit, When the heat-sensitive sheet is pulled out from the sheet roll and the cover is closed, (a) the detecting means detects whether or not the drawn-out heat-sensitive sheet exists at a position facing the detecting means; (B) when the drawn-out heat-sensitive sheet does not exist at a position facing the detection means, displays on the display unit that the amount of drawn-out heat-sensitive sheet should be increased; and (c) faces the detection means. When the pulled out heat-sensitive sheet is present at the position, the conveyance of the heat-sensitive sheet by the conveyance means is started according to an operation from an operation unit, and the heat-sensitive recording head is operated by the heat-sensitive recording head. Performing a recording operation on the thermal sheet; (d) after the recording operation on the thermal sheet by the thermal recording head, the detecting means determines whether or not recording has been performed on a surface of the thermal sheet facing the detecting means. (E) if no recording has been made on the surface of the heat-sensitive sheet facing the detection means, a message indicating that the heat-sensitive sheet roll should be reloaded is displayed on the display unit; (f) the heat-sensitive sheet Wherein the recording is continued on the surface facing the detecting means, the conveying of the thermal sheet by the conveying means is continued. 2. A facsimile apparatus comprising: the recording apparatus according to claim 1; and an image reading unit for reading a document image. 3. A loading section in which a heat-sensitive sheet roll wound in a roll shape is loaded; a transporting unit for transporting a thermal sheet drawn from the thermal sheet roll loaded in the loading section; A thermal recording head, which is installed at a position facing the transport unit in a transport path along which the thermal recording head is capable of recording on an image recording surface that is one surface of the thermal sheet; Detecting means installed in a transport path on the downstream side in the transport direction from the means, detecting whether or not the pulled-out thermal sheet is present at a position facing the detecting means, and Detecting means for detecting whether or not recording has been performed using a reflective photosensor; a cover for opening and closing when the thermal sheet roll is loaded; and a state of the recording apparatus. A display unit for displaying, a control method for controlling the recording apparatus, wherein a thermal sheet roll is loaded in the loading unit, the thermal sheet is pulled out from the thermal sheet roll, and the cover unit is closed. (A) the detecting means detects whether or not the pulled out heat-sensitive sheet is present at a position facing the detecting means; and (b) the drawing means is positioned at a position facing the detecting means. If no heat-sensitive sheet is present, a message indicating that the amount of the heat-sensitive sheet to be drawn out should be increased is displayed on the display unit. (C) If the drawn-out heat-sensitive sheet is present at a position facing the detection means, Starting the conveyance of the heat-sensitive sheet by the conveyance means in accordance with an operation from the unit, and performing a recording operation on the heat-sensitive sheet by the heat-sensitive recording head; After the recording operation on the thermal sheet by the thermal recording head, the detecting means detects whether or not recording has been performed on a surface of the thermal sheet facing the detecting means, and (e) the detecting means for the thermal sheet. If no recording has been made on the surface opposite to the above, the fact that the heat-sensitive sheet roll should be reloaded is displayed on the display section, and (f) the recording has been made on the surface of the heat-sensitive sheet facing the detection means. And controlling the recording apparatus so that the transportation of the heat-sensitive sheet by the transportation unit is continued.