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US 8,939,527 B2Granted
Printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsShimpei Shinohara, Takeshi Sekino
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AssigneeCanon Kabushiki Kaisha
InventorsShimpei Shinohara, Takeshi Sekino
Estimating the term…
An ink jet printing apparatus can suppress vibrations to a low level without local concentration of abrasion between a carriage and a guide shaft. The ink jet printing apparatus makes the carriage reciprocate along the guide shaft without ejecting ink, thus achieving a stirring operation in which the ink stored in an ink tank is stirred. At least one of a limited range in one direction, in which the stirring operation is performed, and a portion of the guide shaft that contacts the carriage when viewed from the one direction, is changeable.
A printing apparatus comprising:
A printing apparatus comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
No references of this kind are recorded.
Characterised by ink handling: conditioning of the inside of ink supply circuits, e.g. flushing during start-up or shut-down
Positive-feed character-spacing mechanisms: drive control means for carriage movement
With print gap adjustment mechanisms: with print gap adjustment means between the print head and its carriage
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for: framework
About 6 years 6 months of term left · ends 24 Apr 2033 (estimated)
1. Field of the Invention
The present invention relates to a printing apparatus, in which ink reserved or stored in an ink tank is stirred, and a stirring method in the printing apparatus.
2. Description of the Related Art
FIG. 1 is a perspective view showing an ink jet printing apparatus in an embodiment according to the present invention;
FIG. 2 is a perspective view showing the inside configuration of the ink jet printing apparatus shown in FIG. 1 in the state in which an upper case is detached;
FIG. 3 is a block diagram illustrating a control system in the ink jet printing apparatus shown in FIG. 1;
An ink jet printing apparatus 1 in an embodiment according to the present invention will be described with reference to the attached drawings. FIG. 1 is a perspective view showing the ink jet printing apparatus 1 in an embodiment. In the ink jet printing apparatus 1 in the present embodiment, a carriage 601 having a print head 700 and an ink tank 602 mounted thereon is housed inside of a casing 100. The casing 100 is constituted of mainly an upper case 101 and a lower base 102.
The casing 100 for the ink jet printing apparatus 1 is provided with an access cover 103. The access cover 103 is provided such that its end can be turned with respect to the upper case 101 for the casing 100. When the access cover 103 is opened, an access can be made from the outside with respect to component parts such as the print head 700 or the ink tank 602 housed inside of a printing apparatus main body 100, and therefore, these component parts can be replaced with new ones.
A power key 104 and a resume key 105 are disposed in a pressable manner in front of the casing 100 in the ink jet printing apparatus 1. Moreover, a light guide 106 is provided at the casing 100 in such a manner as to extend from each of the power key 104 and the resume key 105. Each of the light guides 106 is adapted to guide and diffuse light emitted from a light emitting diode (hereinafter referred to as an “LED”) mounted on an operational board to the outside. The LED lights or flashes so as to notify the user of various conditions such as ON or OFF of a power source in the ink jet printing apparatus 1. In this manner, the ink jet printing apparatus 1 is equipped with a display function of displaying the condition thereof by transmitting the light emitted from the LED to the user via the light guide 106.