JP2015000532A - Ribbon take-out mechanism of printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ribbon take-out mechanism of a printing device in which an ink ribbon is jumped out to such a position that ink ribbon exchanging can be done smoothly and simply.SOLUTION: An ribbon take-out mechanism of a printing device 1 includes a printing device body 2 which comprises a housing part 5, a platen 6 and a rotation support part 7, and a ribbon part fluctuation mechanism 4 which comprises a printing head 8, a ribbon supply shaft 10 and a ribbon take-up shaft 11, and which comprises a fluctuating ribbon part 9, a printing unit 3, a first endless belt 14, and a second endless belt 15. When the printing unit is opened, a space S appears, and, with opening of the printing unit, the first endless belt rotates, to rotate a second drive member 13, rotate a first drive member 12 through the second endless belt, and fluctuate the ribbon part, resulting in jumping out of a ribbon supply shaft side to the space S.

Description

In particular, the present invention is a ribbon take-out mechanism suitable for a printing apparatus such as a label printer, and the ink ribbon can be swung out so that the ink ribbon can be exchanged smoothly and easily. This is a ribbon take-out mechanism of the printing apparatus.

  Conventionally, a printer such as a label printer that attaches an ink ribbon and prints on a printing medium such as a label is known (for example, see Patent Document 1).

  The printer (printing apparatus) of the cited document 1 will be described with reference to FIGS. 7 and 8. The printer 50 mainly includes a lower casing 51, an upper casing 52, a printing unit support arm 53, a roll support apparatus 54, a guide. A roller 55 and a guide roller support 56 are provided.

The lower casing 51 is provided with a roll support device 54 for supporting a roll (medium to be printed) 57 therein, and on the downstream side at a desired distance from the roll support device 54 (left side in the figure). A platen 58 is provided, and the roll 57 fed from the roll support device 54 is conveyed to the platen 58 side.
Further, the upper housing 52 is rotatable via a pivot (rotating support shaft portion) 59 provided on the upper rear side of the lower housing 51, and the guide roller is disposed on the inner side of the top surface. A guide roller 55 is installed via a support portion 56, and the guide roller 55 is rotatably supported by the guide roller support portion 56.

  The print unit support arm 53 is an ink ribbon used for transferring information to the print head 60 disposed on the leading end side (left side in the figure) so as to face the platen 58 and the roll 57 which is a printing medium. A printing unit 63 including an R ribbon supply shaft 61 and a ribbon take-up shaft 62 is provided. Like the upper housing 52, the printing unit 63 is rotatable with respect to the lower housing 51 through a pivot 59.

  When the upper casing 52 and the print unit 63 are in a closed (closed) state (see FIG. 7), the roll 57 mounted on the roll support device 54 is sandwiched between the platen 58 and the print head 60. Ink from the ink ribbon R is transported and overlapped with the ink ribbon R spanned between the ribbon take-up shaft 62 and the ribbon supply shaft 61, and is applied to the roll 57, which is a printing medium, by the heat of the print head 60. The ink ribbon R after the transfer is taken up by the ribbon take-up shaft 62.

  In the printer 50, when the roll 57 is replaced, only the upper casing 52 is rotated to expose the upper side of the printing unit 63, and a working space S is provided between the upper casing 52 and the printing unit 63. In addition, the roll 57 is mounted from the open space S.

  When replacing the ink ribbon R, as shown in FIG. 8, only the upper housing 52 is rotated to expose the upper side of the print unit 63, and the used ink ribbon R from the ribbon take-up shaft 62 is exposed. After removing the “reel” of the ink ribbon R from the ribbon supply shaft 61, the ink ribbon R is attached to the ribbon supply shaft 61. Thereafter, the print unit support arm 53 is rotated to secure a space S between the lower portion of the print unit 63 and the lower housing 51, and the ink ribbon R is wound around the ribbon take-up shaft 62 through the lower portion of the print head 60. To complete the installation.

However, in the printer 50 described above, when the ink ribbon R is mounted, it is necessary to open and close the upper casing 52 and the printing unit 63 separately, which is troublesome.
That is, after the upper casing 52 is rotated and the ink ribbon R is attached from the space S opened above the printing unit 63, the printing unit support arm 53 is rotated and the ink ribbon R from below the printing unit 63. Since the ribbon supply shaft 61 is provided at a position deeper than the print head 60, the ink ribbon R is difficult to attach and detach.

JP 2009-119827 A

SUMMARY OF THE INVENTION The present invention has been made paying attention to the above problems, and provides a ribbon take-out mechanism for a printing apparatus in which the ink ribbon can be ejected to a position where the ink ribbon can be exchanged smoothly and easily. Is an issue.

  The ribbon take-out mechanism of the printing apparatus according to the present invention includes a storage unit that can store a medium to be printed, a rotatable platen provided at one end away from the storage unit, and one end provided with the platen. A printing apparatus main body provided with a rotation support shaft provided at the other end facing the plate, a print head provided at a desired position on one end facing the platen, and a first drive member. A ribbon supply shaft provided with a ribbon supply shaft provided with a second drive member, and a ribbon portion that swings about the ribbon winding portion, and the pivot support shaft portion. The printing unit is rotatably supported by the printing apparatus main body, and can be opened and closed with respect to the printing apparatus main body, and is bridged between the rotation support shaft portion and the second drive member of the ribbon take-up shaft. A first endless belt; A ribbon take-out mechanism of a printing apparatus, comprising: a ribbon portion swinging mechanism comprising: a second endless belt that spans between the second driving member and the first driving member of the ribbon supply shaft. And when the printing unit is opened, the working space is exposed by separating the printing head provided on the printing unit side and the platen provided on the printing apparatus main body side, and Along with the opening of the printing unit, the first endless belt is rotated via the rotation support shaft to rotate the second driving member, and the first driving member is rotated via the second endless belt. It is characterized by rotating and swinging the ribbon portion so that the ribbon supply shaft side jumps out to the working space.

  Further, the rotation support shaft portion is provided with a cover body so as to be rotatable, and can be provided with a cover body that opens and closes in conjunction with the opening and closing operation of the print unit and covers the print unit when closed.

Further, the ribbon take-out mechanism of the printing apparatus according to the second aspect of the invention includes a storage unit that can store a medium to be printed, a rotatable platen provided at one end portion at a desired distance from the storage unit, the storage unit, A guide surface of the medium to be printed formed between the platens, a sensor that is disposed on the guide surface and detects a detection mark provided on the medium to be printed, and one end portion on which the platen is provided; A printing apparatus main body provided with a rotation support shaft provided at the other end facing, a print head provided at a desired position at one end facing the platen, and a first drive member. And a ribbon take-up shaft provided with a ribbon supply shaft and a second drive member, and a ribbon portion that swings about the ribbon take-up shaft, and rotates around the rotation support shaft portion. Support freely A printing unit that is openable and closable with respect to the printing apparatus main body, and a printing medium that is rotatably provided to the printing unit and is transferred from the storage unit to the printing head and the platen when closed. A holding member that elastically biases the guide surface, a first endless belt that is stretched between the rotating support shaft and the second drive member of the ribbon take-up shaft, and the second drive member And a second endless belt spanned between the first drive member of the ribbon supply shaft, and a third endless belt spanned between the second drive member and the pressing member A ribbon take-out mechanism of a printing apparatus having a pressing member and a ribbon part swinging mechanism, and when the printing unit is opened, a print head provided on the printing unit side and a printing apparatus main body side Platen provided The working space is revealed by separating the first printing belt, and the first endless belt rotates to rotate the second driving member as the printing unit is opened, and the second driving member is rotated through the second endless belt. The first drive member is rotated to swing the ribbon portion so that the ribbon supply shaft side jumps out to the working space, and the presser member is moved to the working space via the third endless belt. It is characterized by retreating from the space.

The ribbon take-out mechanism of the printing apparatus of the present invention exposes the working space by separating the print head provided on the printing unit side and the platen provided on the printing apparatus main body side when the printing unit is opened. Further, as the printing unit is opened, the first endless belt rotates to rotate the second driving member, and the first driving member is rotated via the second endless belt to swing the ribbon portion. Since the ribbon supply shaft side jumps out to the working space, the ribbon unit automatically jumps out to the space side via the ribbon unit swinging mechanism when the printing unit is opened. Since there is no need to pull out the ink ribbon in the position where the mark is recessed, the replacement work is facilitated.
Furthermore, a cover body is provided on the pivot support shaft so as to be pivotable, and opens and closes in conjunction with the opening and closing operation of the printing unit. The lid follows the opening / closing operation of the unit, and the printing unit can be covered when the printing unit is closed.

The ribbon take-out mechanism according to the second aspect of the present invention provides a working space by separating the print head provided on the print unit side and the platen provided on the print apparatus main body side when the print unit is opened. As the printing unit is opened, the first endless belt rotates to rotate the second driving member, and the first driving member is rotated via the second endless belt, whereby the ribbon portion And the ribbon supply shaft side jumps out to the working space, and the pressing member is retracted from the working space via the third endless belt. Accordingly, the pressing member is in a retracted state, and the ribbon portion automatically jumps out to the space side via the pressing member and the ribbon portion swinging mechanism, so that the pressing member is not in the way, and Because there is no need to pull out the ink ribbon in the skilled in the art recessed position, there is an effect that the replacement work becomes easy.

It is explanatory drawing of the printing apparatus provided with the ribbon taking-out mechanism which concerns on this invention, and is a schematic side explanatory drawing which shows the state by which the cover body was closed. It is a schematic side surface explanatory view showing a state where the lid is opened. It is a side view. It is a schematic explanatory drawing for demonstrating the operation state of a ribbon part rocking | fluctuation mechanism. FIG. 5 is an explanatory view of another embodiment of a ribbon take-out mechanism of a printing apparatus provided with a pressing member, and is a schematic side view equivalent to FIG. 1 showing a state in which a lid is closed. FIG. 3 is a schematic side view corresponding to FIG. 2 showing a state where the lid is opened. It is a schematic explanatory drawing for demonstrating the operation state of a holding | suppressing part and a ribbon part rocking | fluctuation mechanism. It is explanatory drawing of the printing apparatus provided with the conventional ribbon part, and is a schematic side explanatory drawing equivalent to FIG. 1 which shows the state by which the cover body was closed. FIG. 3 is a schematic side view corresponding to FIG. 2 showing a state where the lid is opened.

The best mode for carrying out the present invention will be described below with reference to the drawings.
In addition, below, the part similar to the past is attached | subjected to the same code | symbol, and detailed description is abbreviate | omitted.
(First embodiment)
FIG. 1 is a diagram showing a first embodiment of a printing apparatus 1 provided with a ribbon take-out mechanism according to the present invention.
In addition, each figure shown below including FIG. 1 is the figure shown typically, and the magnitude | size and shape of each part are exaggerated suitably for easy understanding.
In the following description, specific numerical values, shapes, operations, and the like will be described, but these can be changed as appropriate.

  The printing apparatus 1 mainly includes a printing apparatus main body 2, a printing unit 3, and a ribbon portion swing mechanism 4 (FIG. 3).

The printing apparatus main body 2 mainly includes a storage portion 5 that can store a print medium 57, a platen 6 that is rotatably provided at one end portion (left end portion in FIG. 1), and one end provided with the platen 6. The part has a pivotal support shaft portion 7 provided at the other end portion (rear end portion) (the right end portion in FIG. 1) facing each other with the storage portion 5 interposed therebetween.
Reference numeral 16 denotes a sensor provided on the “bottom” of the printing apparatus main body 2, and this sensor 16 detects a detection mark (not shown) of the print medium 57. Can be adopted.
The “bottom part” of the printing apparatus main body 2 serves as a guide surface 17 when the printing medium 57 is conveyed.

The print unit 3 mainly includes a print head 8 and a ribbon portion 9, and is rotatably supported with respect to the rotation support shaft portion 7. The print unit 3 rotates with respect to the printing apparatus main body 2. It can be opened and closed via the support shaft 7.
The print head 8 is provided at one end portion of the print unit 3 facing the platen 6 provided in the printing apparatus main body 2 and abuts on the platen 6 when the print unit 3 is closed (see FIG. 1). It is provided as follows.
Reference numeral 18 denotes a lid, and the lid 18 is rotatably supported by the pivot support shaft portion 7 in the same manner as the printing unit 3, and opens and closes in conjunction with the opening and closing operation of the printing unit 3. When the printing unit 3 is closed, the printing unit 3 is covered from above.

The ribbon unit 9 includes a ribbon supply shaft 10, a ribbon take-up shaft 11, and a ribbon subframe unit 19.
The ribbon supply shaft 10 is provided with a first drive member 12, and the ribbon take-up shaft 11 is provided with a second drive member 13, respectively. The first and second drive members 12 are provided. , 13 are "drive control members" that combine a pulley and a clutch (not shown). That is, the ribbon supply shaft 10 or the ribbon take-up shaft 11 is rotatable, and the ribbon supply shaft 10 and the ribbon take-up shaft 11 are rotated independently of each other. . Therefore, the ribbon supply shaft 10 and the ribbon take-up shaft 11 do not operate to feed out or take up the ink ribbon R even if the first or second drive member 12 or 13 is rotated. The ribbon portion swing mechanism 4 swings the ribbon take-up shaft 11, more specifically, the ribbon supply shaft 10 side with the second drive member 13 as a rotation base point (center).
The ribbon subframe portion 19 is a “plate” that connects the ribbon supply shaft 10 and the ribbon supply shaft 11, and swings with respect to the print unit 3 around the first drive member 12 of the ribbon supply shaft 10. It is formed as follows.
An ink ribbon R is bridged between the ribbon supply shaft 10 and the ribbon take-up shaft 11 via the print head 8.

Here, the ribbon part swinging mechanism 4 will be described mainly based on FIG.
In the figure, for convenience of explanation, the ink ribbon R, the print medium 57, and the like are omitted.
The ribbon part swinging mechanism 4 includes a first endless belt 14 spanned between the rotating support shaft part 7 and the second drive member 13 of the ribbon take-up shaft 11, and the ribbon take-up shaft 11. And a second endless belt 15 that is stretched between the second drive member 13 and the first drive member 12 of the ribbon supply shaft 10. When the rotation support shaft portion 7 rotates, the second drive member 13 rotates through the first endless belt 14 and the second drive member 13 through the second endless belt 15. This rotation is transmitted to the first drive member 12, and when the first drive member 12 rotates, the ribbon sub-frame portion 19 swings along with this rotation.

Next, the operation state of the ribbon take-out mechanism will be described with reference to FIGS.
When the printing apparatus main body 2 and the printing unit 3 are closed (see FIG. 1), the printing unit 3 is lifted together with the lid 18 with respect to the printing apparatus main body 2 when the printing unit 3 is lifted in the opening direction (arrow Y direction). Is rotated via the rotation support shaft portion 7 to separate the print head 8 of the printing unit 3 and the platen 6 of the printing apparatus main body 2 to expose the working space S.
Further, mainly as shown in FIG. 3, as the rotation support shaft portion 7 rotates, this rotational force is transmitted via the first endless belt 14 to the second drive member 13, the second endless belt 15, As the first drive member 12 is rotated and the first drive member 12 is rotated, the sub-frame portion 19 is rotated with the second drive member 13 of the ribbon take-up shaft 11 as a rotation base point, and the ribbon portion 9 ribbon supply shaft 10 side is swung to the space S side and jumps out.
The ink ribbon R is mounted on the ribbon supply shaft 10 and is wound around the ribbon take-up shaft 11 through the lower side of the print head 8. Since the ribbon supply shaft 10 jumps out into the wide space S, the print head 8 is obstructed. It is difficult to change and easy to replace.

  In addition, after the ribbon replacement, when the printing unit 3 (and the lid 18 covering the printing unit 3) is closed in the closing direction (in the reverse direction of the arrow Y), the rotating support shaft portion 7 rotates in the opposite direction to the previous direction. The rotational force is transmitted to the first endless belt 14, the second drive member 13, the second endless belt 15, and the first drive member 12, and the ribbon winding shaft is transmitted along with the rotation of the first drive member 12. 11, with the second drive member 13 as the rotation base point, the subframe portion 19 is swung in the opposite direction to house the ribbon supply shaft 10 side of the ribbon portion 9 from the space S to the print unit 3 side, The print head 8 and the platen 6 come into contact with each other, and the closing of the printing unit 3 and the lid 18 with respect to the printing apparatus main body 2 is completed.

  As described above, as the printing unit 3 is opened, the ribbon portion 9 is automatically swung to the space S side via the ribbon portion swinging mechanism 4 so that it jumps out. Since there is no need to pull out the ribbon R, the replacement work is facilitated.

(Second Embodiment)
Next, the second embodiment will be described mainly based on FIGS. 4 to 6.
In the following description, the same parts as those in the conventional and previous embodiments are designated by the same reference numerals, and detailed description thereof is omitted.

In the printing apparatus 20 according to the present embodiment, the printing unit 3 includes a pressing member 23 including a plate spring-shaped guide roller support portion 21 and a guide roller 22 provided at the tip of the guide roller support portion 21. Furthermore, a rotation shaft 24 is provided at the base end portion of the guide roller support portion 21.
Further, mainly as shown in FIG. 6, a third endless belt 25 is stretched between the rotation shaft 24 and the second drive member 13 of the ribbon take-up shaft 11. When the second drive member 13 is rotated, the rotation shaft 24 is rotated via the third endless belt 25, and the pressing member 23 is swung with respect to the print unit 3.

Next, the operation states of the presser portion 23 and the ribbon portion 9 will be described mainly based on FIG.
FIG. 6 is a schematic explanatory diagram for explaining the operation state of the presser portion and the ribbon portion swing mechanism 26.
When the printing device main body 2 and the printing unit 3 are closed (see FIG. 4), when the printing unit 3 is lifted in the opening direction (the arrow Y direction), the printing unit 3 together with the lid 18 with respect to the printing device main body 2. Is rotated via the rotation support shaft portion 7 to separate the print head 8 of the printing unit 3 and the platen 6 of the printing apparatus main body 2 to expose the working space S.

In addition, the second drive member 13 rotates via the first endless belt 14 along with the rotation of the rotation support shaft portion 7, and is bridged between the second drive member 13 and the rotation shaft 24. The third endless belt 25 rotates.
The rotation of the third endless belt 25 is transmitted to the rotating shaft 24, and the presser member 23 is swung in a direction retracting from the space S (right direction in the figure).
Further, since the rotation of the second drive member 13 is also transmitted to the second drive belt 15, as described above, simultaneously with the swinging / retracting of the presser member 23, the second winding member 11 of the ribbon take-up shaft 11 is rotated. The ribbon supply shaft 10 side of the ribbon portion 9 is swung to the space S side and protrudes with the drive member 13 as a rotation base point.
As the printing unit 2 is opened, the presser member 12 is swung and retracted from the space S, and the ribbon portion 9 automatically jumps out to the space S side, so that the presser member 23 prevents the operator from replacing the ink ribbon R. In addition, since it is not necessary to pull out the ink ribbon R in a deep position, the replacement work is facilitated.

In addition, after the ribbon replacement, when the printing unit 3 (and the lid 18 covering the printing unit 3) is closed in the closing direction (in the reverse direction of the arrow Y), the rotating support shaft portion 7 rotates in the opposite direction to the previous direction. The first endless belt 14, the second driving member 13, and the third endless belt 25 rotate to swing and advance the presser member 23 toward the space S via the rotation shaft 24, and the print head 8. The platen 6 comes into contact with the printing apparatus main body 2 to complete the closing of the printing unit 3 and the lid 18.
When the printing unit 3 (and the lid 18) is closed, the guide roller 22 of the pressing member 23 comes into contact with the printing medium 57 in the vicinity of the reflection sensor 16 and is printed by the leaf spring-shaped guide roller support portion 21. The medium 57 is elastically biased toward the guide surface 17.

As described above, with the opening operation of the printing unit 3, the pressing member 23 is retracted from the space S, and the ribbon portion 9 is automatically moved to the space S via the presser portion and the ribbon portion swing mechanism 26. Since the presser member 23 does not get in the way and the operator does not need to pull out the ink ribbon R at the back position, the replacement work can be facilitated.
About another structure, an effect | action, and an effect, detailed description is abbreviate | omitted since it is the same as that of previous embodiment.

  It should be noted that the configuration and operation of the above-described embodiment are examples, and it goes without saying that they can be changed as appropriate without departing from the spirit of the present invention.

For example, for the sake of explanation, the example has been described in which the ribbon supply shaft 10 side is swung to the space S side and jumps out. However, the present invention is not limited to this, and the ribbon take-up shaft 11 side is swung to jump out. Thus, the used ink ribbon may be removed smoothly.

R Ink Ribbon S Work space (space)
Y direction to open the printing unit 3 1 printing apparatus (first embodiment)
2 Printing device body 3 Printing unit 4 Ribbon part swing mechanism (Fig. 3)
DESCRIPTION OF SYMBOLS 5 Storage part 6 Platen 7 Rotation support shaft part 8 Print head 9 Ribbon part 10 Ribbon supply shaft 11 Ribbon take-up shaft 12 1st drive member 13 2nd drive member 14 1st endless belt (FIG. 3)
15 Second endless belt (Figure 3)
16 sensor (reflection sensor)
17 Guide Surface 18 Lid 19 Ribbon Subframe 20 Printing Device (Second Embodiment)
21 Guide roller support 21
22 Guide roller 22
23 Presser member 24 Rotating shaft 24
25 Third endless belt (Fig. 6)
26 Presser member and ribbon part swing mechanism (Fig. 6)
50 Printer (prior art)
51 Lower housing 52 Upper housing 53 Printing unit support arm 54 Roll support device 55 Guide roller 56 Guide roller support 57 Roll (medium to be printed)
58 Platen 59 Pivot (Rotating spindle)
60 Print head 61 Ribbon supply shaft 62 Ribbon take-up shaft 63 Printing unit

Claims (3)

A storage unit capable of storing a printing medium, a rotatable platen provided at one end separated from the storage unit by a desired distance, and a rotation provided at the other end facing the one end provided with the platen. A printing apparatus main body provided with a moving support shaft,
A print head provided at a desired position at one end facing the platen, a ribbon supply shaft provided with a first drive member, and a ribbon take-up shaft provided with a second drive member are provided, and the ribbon A printing unit that includes a ribbon unit that swings about a winding unit, and that is rotatably supported by the rotating support shaft unit, and that can be opened and closed with respect to the printing apparatus body;
A first endless belt stretched between the rotating support shaft and the second drive member of the ribbon take-up shaft; the second drive member; and the first drive member of the ribbon supply shaft A ribbon part swinging mechanism comprising a second endless belt spanned between
A ribbon take-out mechanism of a printing apparatus having:
When the printing unit is opened, the working space is exposed by separating the printing head provided on the printing unit side and the platen provided on the printing apparatus main body side, and
Along with the opening of the printing unit, the first endless belt is rotated through the rotation support shaft portion to rotate the second driving member, and the first driving member is rotated through the second endless belt. Rotate the
A ribbon take-out mechanism of a printing apparatus, wherein the ribbon portion is swung so that the ribbon supply shaft side jumps out to the working space.   Further, the rotating support shaft portion is provided with a cover body that can rotate, and is provided with a cover body that opens and closes in conjunction with the opening and closing operation of the printing unit and covers the printing unit when closed. The ribbon take-out mechanism of the printing apparatus according to claim 1, wherein: A storage section capable of storing a print medium; a rotatable platen provided at one end at a desired distance from the storage section; and a guide surface of the print medium formed between the storage section and the platen. A sensor that is disposed on the guide surface and detects a detection mark provided on the print-receiving medium; and a rotation support shaft provided at the other end opposite to the one end provided with the platen. A printing apparatus main body comprising:
A print head provided at a desired position at one end facing the platen, a ribbon supply shaft provided with a first drive member, and a ribbon take-up shaft provided with a second drive member are provided, and the ribbon A printing unit that includes a ribbon portion that swings about a winding shaft, and is rotatably supported by the rotating support shaft portion, and is openable and closable with respect to the printing apparatus main body.
A presser member that is rotatably provided in the printing unit and that, when closed, elastically urges the printing medium transferred from the storage unit to the printing head and the platen side toward the guide surface;
A first endless belt stretched between the rotating support shaft and the second drive member of the ribbon take-up shaft; the second drive member; and the first drive member of the ribbon supply shaft A holding member and a ribbon portion swinging provided with a second endless belt spanned between the second endless belt and a third endless belt spanned between the second driving member and the pressing member. Mechanism,
A ribbon take-out mechanism of a printing apparatus having:
When the printing unit is opened, the working space is exposed by separating the printing head provided on the printing unit side and the platen provided on the printing apparatus main body side,
With the opening of the printing unit, the first endless belt rotates to rotate the second driving member, and the first driving member rotates through the second endless belt,
While swinging the ribbon portion and projecting the ribbon supply shaft side to the working space,
A ribbon take-out mechanism of a printing apparatus, wherein the pressing member is retracted from the working space via the third endless belt.

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