Patent Description:
A printing apparatus performs printing by a printhead while conveying a print medium between the printhead and a platen. If the print medium is curled, it may lift during conveyance and contact the printhead. Print medium curling occurs even in a cut sheet. In a roll sheet, significant curling tends to occur because of its wound state. <CIT> discloses a technique for suppressing a lift of a print medium by the guide surface shape of the leading edge of the print medium. Also, <CIT> discloses a technique for suppressing a lift of a print medium by providing a dedicated spur. Document <CIT> discloses an apparatus that reduces uncontrolled bending of print medium in a print zone.

The position where a lift occurs until the leading edge of the print medium passes through the printhead and reaches a discharge roller may change depending on the stiffness or the degree of curling of the print medium. If the position of a lift can be controlled, it is easy to take a measure.

The present invention provides a technique for controlling a position where a lift of a print medium occurs and suppressing it.

The present invention in its first aspect provides a printing apparatus as specified in claims <NUM> to <NUM>.

Note, the following embodiments are not intended to limit the scope of the claimed invention which is defined by the appended claims.

<FIG> is a schematic views of a printing apparatus <NUM> according to this embodiment. In this embodiment, a case will be described in which the present invention is applied to a serial type inkjet printing apparatus, but the present invention is also applicable to printing apparatuses of other types. In the drawings, an arrow X and an arrow Y indicate horizontal directions orthogonal to each other, and an arrow Z indicates a vertical direction. A downstream side and an upstream side are based on the conveyance direction of a print medium.

Note that "printing" includes not only forming significant information such as characters and graphics but also forming images, figures, patterns, and the like on print media in a broad sense, or processing print media, regardless of whether the information formed is significant or insignificant or whether the information formed is visualized so that a human can visually perceive it. In addition, although in this embodiment, sheet-like paper is assumed as a "print medium" serving as a print target, sheet-like cloth, a plastic film, and the like may be used as print media.

The printing apparatus <NUM> includes, as a mechanism for conveying a print medium, a feed unit <NUM>, a conveyance unit <NUM>, and a discharge unit <NUM>, which are arranged from the upstream side in the conveyance direction of a print medium. In the following description, an upstream side and a downstream side are based on the conveyance direction of a print medium. The feed unit <NUM> includes a feed unit <NUM> which feeds a sheet SH1 as a print medium, and a feed unit <NUM> which feeds, as a print medium, a sheet SH2 different from the sheet SH1. In this embodiment, the print media for printing can be selectively fed by the two feed units <NUM> and <NUM>.

The feed unit <NUM> includes a feeder tray <NUM> (stacking section) on which a plurality of sheets SH1 can be stacked, a feed roller <NUM>, and a separation section <NUM>. The sheet SH1 is a cut sheet (to be sometimes referred to as the cut sheet SH1 hereinafter) stacked on the feeder tray <NUM> in a posture in which the widthwise direction of the sheet SH1 matches the Y direction. The feed roller <NUM> is rotated by a driving force of a feed motor <NUM>, and abuts against the top cut sheet SH1 stacked on the feeder tray <NUM>, thereby conveying it to the downstream side. The separation section <NUM> is provided in the downstream-side end section of the feeder tray <NUM>. The separation section <NUM> has a structure (for example, separation claws) which separates the cut sheets SH1 on the feeder tray <NUM> one by one upon conveying the cut sheets SH1 by the feed roller <NUM>.

The sheet SH2 is a roll sheet obtained by winding one sheet into a roll form around a cylindrical core (to be sometimes referred to as the roll sheet SH2). The feed unit <NUM> includes a support section <NUM> which rotatably supports the roll sheet SH2. The roll sheet SH2 is supported in a posture in which the widthwise direction of the roll sheet SH2 (the axial direction of the roll) matches the Y direction. The support section <NUM> is rotated by a driving force of a feed motor <NUM>, thereby rotating the roll sheet SH2. Depending on the rotation direction of the feed motor <NUM>, a feed operation of feeding the roll sheet SH2 to the downstream side and a winding operation can be performed. The feed unit <NUM> includes a roller <NUM> which is pressed against the outer peripheral surface of the roll sheet SH2 by a spring or the like (not shown). The roller <NUM> is a free rotary body, and presses the outer peripheral surface of the roll sheet SH2 such that the feed operation and the winding operation of the roll sheet SH2 are stably performed.

A rotation of the support section <NUM> causes the roll sheet SH2 to pass between a sheet guide 10a and a roller <NUM>, which is a free rotary body arranged so as to face the sheet guide 10a, and be conveyed to the downstream side. The conveyance path of the cut sheet SH1 and the conveyance path of the roll sheet SH2 are merged at a merging section on the downstream side of a partition member 10c. The conveyance path after merging passes between a sheet guide 10a and a sheet guide 10b facing the sheet guide 10a and reaches the conveyance unit <NUM>.

The conveyance unit <NUM> is arranged on the upstream side of a printhead <NUM> and conveys the print medium (cut sheet SH1 or roll sheet SH2) conveyed by the feed unit <NUM> to the printhead <NUM>. The conveyance unit <NUM> includes a driving roller <NUM> and a driven roller <NUM> (pinch roller) pressed against the driving roller <NUM> by a spring or the like (not shown). The driving roller <NUM> is rotated by a driving force of a conveyance motor <NUM>. A forward rotation of the conveyance motor <NUM> causes the print medium to be nipped in a nip section between the driving roller <NUM> and the driven roller <NUM>, and the print medium (cut sheet SH1 or roll sheet SH2) is conveyed between the printhead <NUM> and a support member <NUM> to the downstream side in the X direction. Upon the winding operation of the roll sheet SH2, a backward rotation of the conveyance motor <NUM> can cause the conveyance unit <NUM> to convey the roll sheet SH2 to the upstream side.

The support member <NUM> is a member configured to support, from the lower side, the print medium conveyed by the conveyance unit <NUM>. In this embodiment, the support member <NUM> is one member, but may be formed by a plurality of members divided in the X direction. A regulation member <NUM> is arranged at a position facing the support member <NUM> to regulate the height position of the print medium from above the print medium, thereby regulating a lift of the print medium.

The discharge unit <NUM> is arranged on the downstream side of the printhead <NUM> and conveys the print medium (cut sheet SH1 or roll sheet SH2) conveyed by the conveyance unit <NUM> to the outside of the apparatus. The discharge unit <NUM> includes a driving roller <NUM>, and a spur <NUM> arranged to face the driving roller <NUM> and pressed against the driving roller <NUM> by a spring or the like (not shown). The driving roller <NUM> is a rotary member that is rotated by a driving force of the conveyance motor <NUM> and conveys the print medium to the downstream side. The spur <NUM> is a rotary member capable of rotating together with the driving roller <NUM>, and the print medium is nipped in the nip section between the driving roller <NUM> and the spur <NUM> and conveyed.

Note that in this embodiment, the conveyance motor <NUM> is shared by the conveyance unit <NUM> and the discharge unit <NUM>, but a configuration in which individual motors are provided may be employed.

A cutting unit <NUM> is provided on the downstream side of the discharge unit <NUM>. The cutting unit <NUM> cuts the roll sheet SH2 having undergone printing. The cutting unit <NUM> includes, for example, a cutter including circular round blades arranged one above and one below and a moving mechanism (not shown) that moves the cutter in a direction (the Y direction in this embodiment) intersecting the conveyance direction of the print medium. The cutter stands by outside the conveyance path of the print medium. At the time of cutting, the cutter is moved so as to cross the conveyance path, thereby cutting the roll sheet SH2.

The printhead <NUM> is arranged on the downstream side of the conveyance unit <NUM> and the upstream side of the discharge unit <NUM>. The printhead <NUM> performs printing on the print medium (cut sheet SH1 or roll sheet SH2). In this embodiment, the printhead <NUM> is an inkjet printhead that performs printing on a print medium by discharging ink. The printhead <NUM> is supported by a carriage <NUM>.

The carriage <NUM> is reciprocated by a driving unit <NUM> in the direction intersecting the print medium. In this embodiment, the carriage <NUM> is reciprocated in the Y direction by the guide of a guide shaft <NUM> extending in the Y direction. The driving unit <NUM> is a mechanism using a carriage motor 11a as a driving source, and is, for example, a belt transmission mechanism including a driving pulley and a driven pulley, which are apart in the Y direction, and an endless belt wound around these pulleys. The carriage <NUM> is connected to endless belt. When the carriage motor 11a rotates the driving pulley, the endless belt travels, and the carriage <NUM> moves. The printhead <NUM> may exchangeably be attached to the carriage <NUM>.

As described above, the printing apparatus <NUM> according to this embodiment is a serial type printing apparatus in which the printhead <NUM> is mounted on the carriage <NUM>. By repeating a conveyance operation (intermittent conveyance operation) of conveying the print medium by a predetermined amount by the conveyance unit <NUM> and a printing operation performed while the conveyance by the conveyance unit <NUM> is stopped, print control of the print medium is performed. The printing operation is an operation of discharging ink from the printhead <NUM> while moving the carriage <NUM> mounted with the printhead <NUM>.

The printing apparatus <NUM> includes a detection unit <NUM>. The detection unit <NUM> detects the print medium at a position on the upstream side of the conveyance unit <NUM> and on the downstream side of the feed unit <NUM>. The detection unit <NUM> is, for example, an optical sensor that detects the print medium. Alternatively, the detection unit <NUM> is formed by, for example, an arm member which is provided in the conveyance path of the print medium so as to be swingable and swings due to interference with the print medium, and a sensor that detects the swinging motion of the arm member.

<FIG> is a block diagram of a control unit <NUM> of the printing apparatus <NUM>. An MPU <NUM> is a processor that controls respective operations of the printing apparatus <NUM>, and controls data processing and the like. The MPU <NUM> controls the entire printing apparatus <NUM> by executing programs stored in a storage device <NUM>. The storage device <NUM> is formed by, for example, a ROM or a RAM. The storage device <NUM> stores, in addition to programs executed by the MPU <NUM>, various kinds of data required for processing such as data received from a host computer <NUM>.

The MPU <NUM> controls the printhead <NUM> via a driver 142a. The MPU <NUM> controls the carriage motor 11a via a driver 142b. The MPU <NUM> also controls the conveyance motor <NUM>, the feed motors <NUM> and <NUM>, and a cutter motor 5a via drivers 142c to 142f, respectively. The cutter motor 5a is a driving source of the cutting unit <NUM>.

The host computer <NUM> is, for example, a personal computer or a mobile terminal (for example, a smartphone, a tablet terminal, or the like) used by a user. The host computer <NUM> is installed with a printer driver 15a which performs communication between the host computer <NUM> and the printing apparatus <NUM>. The printing apparatus <NUM> includes an interface unit <NUM>, and communication between the host computer <NUM> and the MPU <NUM> is performed via the interface unit <NUM>. For example, when the user inputs an execution instruction of print control to the host computer <NUM>, the printer driver 15a collects data of an image to be printed and setting regarding the printing (information such as the quality of the print image), and instructs the printing apparatus <NUM> to execute print control. An execution instruction of print control is sometimes referred to as a print job.

A structure for suppressing a lift of a print medium will be described in correspondence with <FIG>. <FIG> is a plan view of the support member <NUM>, in which the spur <NUM> and the regulation member <NUM> are also shown. <FIG> is a sectional view taken along a line A - A in <FIG>, and <FIG> is a sectional view taken along a line B - B in <FIG>;.

The support member <NUM> includes a plurality of ribs 8a and 8b arrayed in the Y direction. Each of the ribs 8a and 8b is a plate-shaped member extending in the X direction, and their tops form the conveyance support surface for a print medium. In this embodiment, the rib 8a and the rib 8b have different heights (Z-direction lengths). The plurality of relatively low ribs 8b are arranged between the relatively high ribs 8a. For this reason, even if the print medium extends upon application of ink, the print medium can be supported along the relatively low ribs 8b. <FIG> shows a mode in which the extended roll sheet SH2 is supported by the ribs 8a and the ribs 8b. That is, it is possible to prevent the print medium from extending and curving upward and thus prevent the print medium from contacting the printhead <NUM>.

Note that the rib 8a and the rib 8b are different only in the height and have the same contour shape (the profile on the X-Z plane). The configuration of the ribs 8a will mainly be described below, and the description also applies to the ribs 8b.

The rib 8a includes a plurality of parts in the X direction. More specifically, the rib 8a includes a platen section <NUM> and a guide section <NUM>. The platen section <NUM> is a part facing the printhead <NUM>, and forms a support surface flat in the X direction.

The guide section <NUM> is a part that guides the movement of the leading edge of the print medium that has passed through the printhead <NUM>. The guide section <NUM> includes a declined section <NUM>, a connecting section <NUM>, a declined section <NUM>, and an inclined section <NUM> sequentially from the upstream side. The declined section <NUM> is started from a position slightly on the upstream side of the downstream end (nozzles at the downstream end) of the printhead <NUM> in the X direction, and with respect to a support height H1 of the print medium in the platen section <NUM> as a reference, forms a declination declined in a direction of separating from the support height H1 to the downstream side. The declination is a linear declination without curves. The connecting section <NUM> is a section that connects the declined section <NUM> and the declined section <NUM>, and is a flat surface parallel to the support height H1. The declined section <NUM> and the declined section <NUM> may continuously be formed without providing the connecting section <NUM>.

The declined section <NUM> forms a declination declined in a direction of separating from the support height H1 to the downstream side. However, the declination is more moderate than that of the declined section <NUM>. The declination is a linear declination without curves. The inclined section <NUM> forms an inclination inclined in a direction of approaching the support height H1 to the downstream side. The inclined section <NUM> includes a curved section 85a on the upstream side, and a linear section 85b that continues from the curved section 85a to the downstream side. The curved section 85a is a section extended from the lower end of the declined section <NUM> to form an arc such that the declination smoothly transitions to an inclination. The linear section 85b is a linear inclined surface without curves.

In this embodiment, the regulation member <NUM> is a rotary member in a form similar to the spur <NUM> and can freely rotate about a shaft 12a in the Y direction. Note that the regulation member <NUM> need only have a form capable of contacting the print medium and preventing its lift. Not a rotary member as in this embodiment but a fixed member may be used. However, if a rotary member is used, like this embodiment, the conveyance of the print medium whose lift is regulated can be continued more smoothly.

The regulation member <NUM> is arranged at a position facing the guide section <NUM> and, more particularly, arranged at a position facing the declined section <NUM>. If arranged at this position, the regulation member <NUM> can more reliably regulate a lift of the print medium when the leading edge of the print medium moves from the declined section <NUM> to the inclined section <NUM> and the print medium lifts. The relationship between the support height H1 of the platen section <NUM>, a regulation position (regulation height) H2 of the regulation member <NUM>, and a height H3 of the nip position of the discharge unit <NUM> is given by H1 < H2 < H3. By this height relationship, the regulation member <NUM> can more reliably regulate a lift of the print medium.

A plurality of regulation members <NUM> are provided, and these are provided at positions corresponding to the ribs 8a and 8b in the Y direction. More specifically, each regulation member <NUM> is arranged to face one of the ribs 8a and 8b. This can regulate a lift of the print medium at an arbitrary position in the widthwise direction (Y direction) of the print medium.

<FIG> are explanatory views showing an example in which a lift of a print medium is regulated. An example in which the roll sheet SH2 is conveyed will be described here, and the description also applies to the cut sheet SH <NUM>.

<FIG> shows a stage in which the leading edge of the roll sheet SH2 is moving on the platen section <NUM>. Printing is sometimes started at this stage by discharging ink from the printhead <NUM>. When the conveyance of the roll sheet SH2 progresses, the leading edge of the roll sheet SH2 passes through the declined section <NUM> and reaches the connecting section <NUM>, as shown in <FIG>.

Since the declined section <NUM> guides the leading edge of the roll sheet SH2 downward, even if the roll sheet SH2 is curled downward, it can be prevented from lifting to the side of the printhead <NUM>. In particular, since the declined section <NUM> is a relatively steep declination, even if the curl near the leading edge of the roll sheet SH2 is strong, the lift of the roll sheet SH2 can be reduced.

When the conveyance of the roll sheet SH2 progresses, the leading edge of the roll sheet SH2 reaches the declined section <NUM>, as shown in <FIG>. The declined section <NUM> guides the leading edge of the roll sheet SH2 downward, and a state in which the lift of the roll sheet SH2 is little can be continued. If the declined section <NUM> is a flat surface, like the connecting section <NUM>, the lift of the roll sheet SH2 may grow depending on the curl state of the roll sheet SH2. However, since the relatively moderate declined section <NUM> guides the leading edge of the roll sheet SH2, the growth of the lift of the roll sheet SH2 is suppressed. The declined section <NUM> is the longest section in the X direction in the guide section <NUM>, and is a section longer than each of the declined section <NUM> and the connecting section <NUM> and also than the total length of the declined section <NUM> and the connecting section <NUM>. It is possible to, by the declined section <NUM>, ensure the conveyance distance from the printhead <NUM> to the discharge unit <NUM> while suppressing the growth of the lift of the roll sheet SH2.

When the conveyance of the roll sheet SH2 progresses, the leading edge of the roll sheet SH2 reaches the inclined section <NUM>, as shown in <FIG>. For this reason, the lift of the roll sheet SH2 grows. However, since the lift of the roll sheet SH2 is regulated by the regulation member <NUM>, as shown in <FIG>, a lift of the roll sheet SH2 immediately under the printhead <NUM> can be suppressed.

In this embodiment, to control the position where the lift of the roll sheet SH2 grows, the declined section <NUM> and the inclined section <NUM> are continued. That is, on the declined section <NUM>, the growth of the lift of the roll sheet SH2 is suppressed by the declination. On the other hand, the lift abruptly grows on the inclined section <NUM>. In particular, since the curved section 85a is formed at the end section of the inclined section <NUM> on the upstream side, the lift of the roll sheet SH2 abruptly grows. However, the lift of the roll sheet SH2 can be suppressed by the regulation member <NUM>.

Thus, in this embodiment, the position where the lift of the roll sheet SH2 occurs is structurally limited, and the lift of the roll sheet SH2 is regulated by the regulation member <NUM> in correspondence with this position. It is possible to prevent the position where the lift occurs from varying depending on the stiffness or the degree of curling of the roll sheet SH2 and control the position where the lift occurs and thus effectively suppress the lift.

When the conveyance of the roll sheet SH2 progresses, the leading edge of the roll sheet SH2 reaches the nip section of the discharge unit <NUM>, as shown in <FIG>. Since the height H3 of the nip position of the discharge unit <NUM> is located at a position higher than the regulation position H2 of the regulation member <NUM>, the lift of the roll sheet SH2 is continuously regulated by the regulation member <NUM>.

Thus, in this embodiment, the position where a lift of the print medium occurs is controlled, thereby suppressing it. According to this embodiment, even if the platen section <NUM> does not have, for example, a structure for sucking the print medium, a lift of the print medium can be suppressed, and the printing apparatus <NUM> of low cost and small size can be provided.

A structure for adjusting the height of the regulation member <NUM> will be described. When the height of the regulation member <NUM> is adjusted, the lift of the print medium can more reliably be suppressed. As shown in <FIG>, the regulation member <NUM> is supported by a holding member <NUM> together with the spur <NUM>. The spur <NUM> is rotatably supported by the holding member <NUM> via a spring shaft 42a, and is also biased against the driving roller <NUM> by the spring shaft 42a. The regulation member <NUM> is supported by the holding member <NUM> via the shaft 12a.

A height adjustment member <NUM> is interposed between the holding member <NUM> and a base member <NUM>. The holding member <NUM> is supported by the base member <NUM> via the height adjustment member <NUM>. The base member <NUM> is fixed to the frame (not shown) of the printing apparatus <NUM>. The height adjustment member <NUM> includes a plate section <NUM> on the Y-Z plane, and a plate section <NUM> on the X-Y plane, which is bent from the plate section <NUM>, so that the vertical cross-section has an L shape as a whole. The height adjustment member <NUM> can be formed by an L-shaped sheet metal member, and can be formed relatively thin. This can prevent the printing apparatus <NUM> from becoming bulky. The base member <NUM> and the height adjustment member <NUM> are fixed by a screw <NUM> in one plate section <NUM>. The height adjustment member <NUM> and the holding member <NUM> are fixed by a screw <NUM> via a spacer <NUM> in the other plate section <NUM>.

A more detailed description will be made with reference to <FIG>. <FIG> is a perspective view of the assembly of the holding member <NUM>, the base member <NUM>, and the height adjustment member <NUM>, and <FIG> is an exploded perspective view thereof. In <FIG> and <FIG>, the spurs <NUM> and the regulation members <NUM> are not illustrated. <FIG> is an enlarged view of a section P in <FIG>, and shows a state in which the screws <NUM> are removed.

The holding member <NUM>, the base member <NUM>, and the height adjustment member <NUM> are each a long member extended in the Y direction. In the base member <NUM>, fixing holes 17a each configured to receive the screw shaft of the screw <NUM> are formed at a plurality of points in the Y direction. In the height adjustment member <NUM>, screw holes 18a each configured to threadably engage with the screw <NUM> are formed at a plurality of points in the Y direction in correspondence with the fixing holes 17a. The holding member <NUM> and the height adjustment member <NUM> are fixed by the screws <NUM> at the plurality of points in the Y direction.

The fixing hole 17a is a hole whose diameter is larger than that of the screw shaft of the screw <NUM>, and has such a size that allows the position where the screw shaft passes to change in the vertical direction, as indicated by an arrow Z1 in <FIG>. That is, the relative fixing position between each fixing hole 17a and a corresponding screw hole 18a in the Z direction can be adjusted. This can adjust the position of the holding member <NUM> in the height direction with respect to the base member <NUM>. That is, the height of the regulation member <NUM> can be adjusted.

Here, if a print medium with a long width (Y direction) should be handled, the holding member <NUM>, the base member <NUM>, and the height adjustment member <NUM> become long in the Y direction in accordance with the maximum size of the print medium that the printing apparatus <NUM> can handle. If these members become long in the Y direction, the heights of the regulation members <NUM> become unstable because of the warp of the members. In this embodiment, the relative position between each fixing hole 17a and a corresponding screw hole 18a in the Z direction is individually adjusted, thereby adjusting the warp of the height adjustment member <NUM> and the holding member <NUM> in the Y direction and thus individually adjusting the height of each regulation member <NUM>.

In this embodiment, the relationship of the Y-direction bending strength between the holding member <NUM>, the base member <NUM>, and the height adjustment member <NUM> is represented by base member <NUM> > height adjustment member <NUM> > holding member <NUM>. Hence, the height adjustment member <NUM> can be fixed with respect to the base member <NUM> while being warped as indicated by a broken line M1 or a broken line M2 in <FIG>, and the holding member <NUM> can also be fixed while being warped following the warp of the height adjustment member <NUM>. That is, when the warp of the height adjustment member <NUM> is adjusted, the variation of the height of each regulation member <NUM> can be eliminated. The height of the regulation member <NUM> that suppresses a lift of the print medium can thus be adjusted.

If the curl of the leading edge of the roll sheet SH2 is large, the leading edge margin amount of the roll sheet SH2 may be controlled to more reliably prevent contact between the printhead <NUM> and the roll sheet SH2. This will be described with reference to the example shown in <FIG>.

If the curl of the leading edge of the roll sheet SH2 is large, printing is not started at the stage when the leading edge of the roll sheet SH2 is located on the platen section <NUM>, as in the state shown in <FIG>. Printing is started at the stage when the leading edge of the roll sheet SH2 has reached the connecting section <NUM>, as in the state shown in <FIG>. Hence, even if the curl of the leading edge of the roll sheet SH2 is large, contact between the printhead <NUM> and the roll sheet SH2 can more reliably be prevented at the time of printing.

Note that the leading edge margin amount may be controlled based on information that the control unit <NUM> can recognize, such as the type of the print medium, the print mode, the environmental temperature and the environmental humidity in the installation place of the printing apparatus <NUM>, or the remaining amount of the roll sheet. For example, for a print medium of a type with large curl, the margin amount is increased, thereby starting printing at the stage when the leading edge of the print medium has reached a predetermined position of the declined section <NUM> in the X direction. This can more reliably prevent contact between the printhead <NUM> and the roll sheet SH2 at the time of printing.

Similarly, if the environmental temperature and the environmental humidity are lower than assumed temperature and humidity, or if the remaining amount of the roll sheet SH2 is small, the curl of the leading edge of the print medium tends to be large. Hence, the margin amount may be increased to start printing. Also, if a print mode in which printing is performed at a low speed is executed, the margin amount may be increased because the print medium has a longer time to grow the lift.

If the margin amount of the leading edge of the print medium is thus increased, the leading edge of the print medium may be cut by the cutting unit <NUM> in consideration of the increased margin amount.

Claim 1:
A printing apparatus (<NUM>) characterized by comprising:
conveyance means (<NUM>) arranged to convey a print medium in a conveyance direction;
printing means (<NUM>) arranged to print an image on the print medium conveyed by the conveyance means;
a platen section (<NUM>) facing the printing means (<NUM>) and configured to support, from a lower side, the print medium conveyed by the conveyance means (<NUM>);
regulation means (<NUM>) arranged on a downstream side of the printing means (<NUM>) in the conveyance direction and arranged to regulate a height position of the print medium from above the print medium; and characterized in that the printing apparatus comprises:
a guide section (<NUM>) arranged on a downstream side of the platen section (<NUM>) in the conveyance direction and configured to guide the conveyance of the print medium,
wherein the guide section (<NUM>) includes:
a first declined section (<NUM>) declined, from the platen section (<NUM>) to the downstream side in the conveyance direction, in a direction of separating from a support height of the print medium in the platen section (<NUM>);
a second declined section (<NUM>) arranged on the downstream side of the first declined section (<NUM>) in the conveyance direction and declined, to the downstream side in the conveyance direction, in the direction of separating from the support height; and
an inclined section (<NUM>) inclined, from the second declined section (<NUM>) to the downstream side in the conveyance direction, in a direction of approaching the support height,
a declination of the second declined section is more moderate than the first declined section, and
the regulation means (<NUM>) faces the guide section (<NUM>).