| CPC B41J 29/393 (2013.01) | 7 Claims |

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1. A processing device, comprising:
a housing;
a processing unit disposed inside the housing, the processing unit being configured to move along a first movement path and discharge a liquid towards a medium;
a cover member configured to cover openably and closably an opening extending through an upper wall of the housing and a peripheral wall portion, the opening being disposed vertically above the first movement path to vertically overlap the first movement path when viewed in a vertical direction, the peripheral wall portion is located farther in the vertical direction than a portion of the upper wall other than the peripheral wall portion to form a recess configured to receive the cover, the opening being bounded by the peripheral wall portion;
another cover member configured to cover openably and closably a second opening extending through the upper wall of the housing, the second opening being disposed vertically above the first movement path to vertically overlap the first movement path when viewed in the vertical direction;
a near field communication sensor disposed at the housing;
a tray member that vertically overlaps the opening and the first movement path from outside the housing, is detachably disposed at the housing with a portion of the tray member disposed within the opening and extending vertically downward in the vertical direction towards the first movement path, and holds the near field communication sensor so that the near field communication sensor is disposed inside the housing, wherein
the processing unit is exposed to an exterior of the housing through the opening with removing the tray member which is holding the near field communication sensor,
the near field communication sensor held by the tray member is, with the opening closed by the cover member, located in a position arranged between a virtual plane having, and containing, an opening edge of the housing at the opening as a periphery of the virtual plane and the cover member in an orthogonal direction orthogonal to the virtual plane,
with the cover member closed and the near field communication sensor being held by the tray, an outer surface of the cover member and a region of an upper surface of the housing other than the cover member are flush, and
the tray member comprises a base wall, an extending wall extending from the base wall, and a notch disposed in the base wall and the extending wall, wherein with the tray member disposed at the housing, and with the portion of the tray member disposed within the opening, the base wall overlaps the opening from outside the housing to close a portion of the opening with the extending wall extending into the opening and the base wall and the notch being disposed below an opening surface of the opening formed by the peripheral wall portion.
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