Printer
A printer for label printing includes a cutter to cut a continuous label after printing at a position inside of the surface with respect to the outer case of the printer. A separation sensor is disposed between the cutter and the thermal head. A sheet detection sensor is disposed downstream of the cutter in the feeding direction. The sensors are mounted in two stages on a common circuit board. The circuit board is disposed vertically along the feeding direction of the continuous label within the region where a cover-open button to open an opening and closing cover of the printer is disposed.
1. A printer, comprising:
a housing configured to store a print medium;
an opening and closing cover supported by the housing so as to be opened and closed;
a feed roller disposed at the opening and closing cover, the feed roller being configured to feed the print medium;
a print head disposed to be opposed to the feed roller in the housing, the print head being configured to print on the print medium;
a cutting unit disposed to be opposed to the feed roller, the cutting unit being disposed downstream of the feed roller in a feeding direction, the cutting unit being configured to cut the print medium after printing by the print head;
a first detector disposed between the print head and the cutting unit, the first detector being configured to detect the print medium after printing;
a second detector disposed downstream of the cutting unit in the feeding direction, the second detector being configured to detect the print medium after printing; and
a circuit board common to the first detector and the second detector, the circuit board being configured to mount both of the first detector and the second detector.
2. The printer according to claim 1 , further comprising a separation unit disposed movably between a first position and a second position, the separation unit being opposed to the first detector at the first position between the print head and the cutting unit, the separation unit being closer to the feed roller at the second position than at the first position, wherein
when a label with a liner including a label temporarily adhering to the liner is used as the print medium, the separation unit is placed at the second position to separate the label after printing from the liner.
3. The printer according to claim 1 , wherein
when a label with a liner including a label temporarily adhering to the liner is used as the print medium, the first detector detects the label after printing and separated from the liner, and
when the label with a liner or a linerless label without the liner is used as the print medium, the second detector detects the print medium after printing.
4. The printer according to claim 1 , further comprising:
a head holding member disposed swingably in the housing to hold the opening and closing cover and cancel holding of the opening and closing cover, the head holding member being configured to hold the print head; and
a cancelling member configured to apply a pressing force to the head holding member to cancel holding of the opening and closing cover, wherein
the circuit board is disposed vertically along the feeding direction in a range of a region where the cancelling member is disposed so that the first detector and the second detector face a feed path of the print medium and that the first detector and the second detector are disposed side by side along the feeding direction.
5. The printer according to claim 4 , wherein the head holding member includes:
a holding part configured to hold the print head; and
a pair of pressed parts extending from the holding part in a direction away from the feed roller, the pressed parts sandwiching both lateral faces of the circuit board in a direction of the width of the circuit board intersecting with the feeding direction, the pair of pressed parts receiving a pressing force from the cancelling member when holding of the opening and closing cover is cancelled,
the cancelling member includes:
a pressing part opposed to one lateral face of the circuit board vertically disposed; and
a pair of legs extending from the pressing part to come in contact with the pair of pressed parts of the head holding member, the pair of legs sandwiching both lateral faces of the circuit board in the direction of the width of the circuit board.
6. The printer according to claim 5 , wherein the pressing part of the cancelling member has a concave depressed in a direction away from the circuit board at a part of the pressing part opposed to the circuit board.
7. The printer according to claim 5 , further comprising a protrusion between the first detector and the print head, the protrusion protruding from a position closer to the first detector toward the feed roller.
8. The printer according to claim 5 , wherein the circuit board is disposed at a blank area surrounded with the pressing part and the pair of legs of the cancelling member.
9. The printer according to claim 2 , wherein
when a label with a liner including a label temporarily adhering to the liner is used as the print medium, the first detector detects the label after printing and separated from the liner, and
when the label with a liner or a linerless label without the liner is used as the print medium, the second detector detects the print medium after printing.
10. The printer according to claim 2 , further comprising:
a head holding member disposed swingably in the housing to hold the opening and closing cover and cancel holding of the opening and closing cover, the head holding member being configured to hold the print head; and
a cancelling member configured to apply a pressing force to the head holding member to cancel holding of the opening and closing cover, wherein
the circuit board is disposed vertically along the feeding direction in a range of a region where the cancelling member is disposed so that the first detector and the second detector face a feed path of the print medium and that the first detector and the second detector are disposed side by side along the feeding direction.
11. The printer according to claim 3 , further comprising:
a head holding member disposed swingably in the housing to hold the opening and closing cover and cancel holding of the opening and closing cover, the head holding member being configured to hold the print head; and
a cancelling member configured to apply a pressing force to the head holding member to cancel holding of the opening and closing cover, wherein
the circuit board is disposed vertically along the feeding direction in a range of a region where the cancelling member is disposed so that the first detector and the second detector face a feed path of the print medium and that the first detector and the second detector are disposed side by side along the feeding direction.
12. The printer according to claim 10 , wherein the head holding member includes:
a holding part configured to hold the print head; and
a pair of pressed parts extending from the holding part in a direction away from the feed roller, the pressed parts sandwiching both lateral faces of the circuit board in a direction of the width of the circuit board intersecting with the feeding direction, the pair of pressed parts receiving a pressing force from the cancelling member when holding of the opening and closing cover is cancelled,
the cancelling member includes:
a pressing part opposed to one lateral face of the circuit board vertically disposed; and
a pair of legs extending from the pressing part to come in contact with the pair of pressed parts of the head holding member, the pair of legs sandwiching both lateral faces of the circuit board in the direction of the width of the circuit board.
13. The printer according to claim 11 , wherein the head holding member includes:
a holding part configured to hold the print head; and
a pair of pressed parts extending from the holding part in a direction away from the feed roller, the pressed parts sandwiching both lateral faces of the circuit board in a direction of the width of the circuit board intersecting with the feeding direction, the pair of pressed parts receiving a pressing force from the cancelling member when holding of the opening and closing cover is cancelled,
the cancelling member includes:
a pressing part opposed to one lateral face of the circuit board vertically disposed; and
a pair of legs extending from the pressing part to come in contact with the pair of pressed parts of the head holding member, the pair of legs sandwiching both lateral faces of the circuit board in the direction of the width of the circuit board.
14. The printer according to claim 12 , wherein the pressing part of the cancelling member has a concave depressed in a direction away from the circuit board at a part of the pressing part opposed to the circuit board.
15. The printer according to claim 13 , wherein the pressing part of the cancelling member has a concave depressed in a direction away from the circuit board at a part of the pressing part opposed to the circuit board.
16. The printer according to claim 12 , further comprising a protrusion between the first detector and the print head, the protrusion protruding from a position closer to the first detector toward the feed roller.
17. The printer according to claim 13 , further comprising a protrusion between the first detector and the print head, the protrusion protruding from a position closer to the first detector toward the feed roller.
18. The printer according to claim 14 , further comprising a protrusion between the first detector and the print head, the protrusion protruding from a position closer to the first detector toward the feed roller.