Printer apparatus
View Patent ↗A printing apparatus 100 includes a detecting unit, which detects that a core part at a center portion of a recording medium 202 , in a rolled state, has reached a predetermined position accompanying the consumption of the recording medium 202 in a recording medium accommodating unit 301 accommodating the recording medium 202 , when the printer apparatus 100 is in an installed state; and further includes a moving mechanism that moves the detecting unit to a position whereby the detecting function of the detecting unit is deactivated.
1. A printer apparatus supplying a recording medium that is in a rolled state, from a recording medium accommodating unit accommodating the recording medium to a printing unit, to execute printing, the printer apparatus comprising:
a recording medium holding unit that holds the recording medium and is formed in the recording medium accommodating unit;
a detecting unit that detects that a core part in a center portion of the recording medium has reached a predetermined position accompanying consumption of the recording medium held in the recording medium holding unit; and
a user switch lever that selectively moves the detecting unit between a position that activates the detecting unit and a position that deactivates the detecting unit; wherein
the detecting unit comprises a protrusion that biases and abuts a side surface of the recording medium, and detects entry of the protrusion into a space of the core part in the center portion of the recording medium by a movement of the core part; and
the printer apparatus further comprising a retracting rib configured to prevent the protrusion from swinging when the detecting unit is in the position that deactivates the detecting function.
2. The printer apparatus according to claim 1 further comprising:
a guide unit formed in the recording medium accommodating unit, between a position that activates a detecting function of the detecting unit to detect that the core part in the center portion of the recording medium has reached the predetermined position and a position that deactivates the detecting function; and
engaging units that engage with the guide unit and are formed on the detecting unit.
3. The printer apparatus according to claim 2 further comprising a notification unit that gives notification that a remaining amount of the recording medium is a predetermined amount or less, based on a detection result obtained by the detecting unit.
4. The printer apparatus according to claim 3 , wherein
the detecting unit comprises a protrusion that biases and abuts a side surface of the recording medium, and detects entry of the protrusion into a space of the core part in the center portion of the recording medium by a movement of the core part.
5. The printer apparatus according to claim 3 , wherein
the detecting unit optically detects that the core part in the center portion of the recording medium has reached the predetermined position by a movement of the core part.
6. The printer apparatus according to claim 2 , wherein
the detecting unit comprises a protrusion that biases and abuts a side surface of the recording medium, and detects entry of the protrusion into a space of the core part in the center portion of the recording medium by a movement of the core part.
7. The printer apparatus according to claim 2 , wherein
the detecting unit optically detects that the core part in the center portion of the recording medium has reached the predetermined position by a movement of the core part.
8. The printer apparatus according to claim 1 further comprising a notification unit that gives notification that a remaining amount of the recording medium is a predetermined amount or less, based on a detection result obtained by the detecting unit.
9. The printer apparatus according to claim 8 , wherein
the detecting unit comprises a protrusion that biases and abuts a side surface of the recording medium, and detects entry of the protrusion into a space of the core part in the center portion of the recording medium by a movement of the core part.
10. The printer apparatus according to claim 8 , wherein
the detecting unit optically detects that the core part in the center portion of the recording medium has reached the predetermined position by a movement of the core part.
11. The printer apparatus according to claim 1 , wherein
the detecting unit optically detects that the core part in the center portion of the recording medium has reached the predetermined position by a movement of the core part.
12. The printer apparatus according to claim 1 , wherein
a slit is disposed in the recording medium accommodating unit,
engaging recesses are disposed between both ends in the slit,
the switch lever engages with the slit in a state of being moveable along the slit, and
the position of the switch lever in the slit can be fixed with the engaging recesses.