Loading patent…
AssigneeCanon Kabushiki Kaisha
InventorsJiro Moriyama, Hidehiko Kanda
Estimating the term…
A printing apparatus receives, from a host apparatus, print data, and block size information of a block which is generated on the basis of the main scanning printing width and ensured in a print buffer. A block corresponding to the received block size information is ensured in the print buffer, and the print data is stored in the print buffer. The CPU of the printing apparatus controls printing by the printhead on the basis of the print data stored in the print buffer.
A printing apparatus which performs printing by driving a printhead on the basis of print data transmitted from a host apparatus, comprising:
The apparatus according to clam 1, wherein
A printing apparatus which performs printing by driving a printhead on the basis of print data transmitted from a host apparatus, comprising:
The apparatus according to clam 5, wherein
An information processing apparatus which transmits print data to a printing apparatus that has a buffer for storing print data for each block and performs printing by scanning a printhead in a main scanning direction with respect to a printing medium on the basis of the print data stored in the buffer, comprising:
An information processing apparatus which transmits print data to a printing apparatus that has a buffer for storing print data and performs printing by scanning a printhead in a main scanning direction with respect to a printing medium on the basis of the print data stored in the buffer, comprising:
A method of controlling a printing apparatus which has a buffer for storing print data of each block and performs printing by scanning a printhead in a main scanning direction on the basis of print data from a host apparatus that is stored in the buffer, comprising:
A method of controlling a printing apparatus which has a buffer for storing print data of each block and performs printing by scanning a printhead in a main scanning direction on the basis of print data from a host apparatus that is stored in the buffer, comprising:
A method of controlling an information processing apparatus which transmits print data to a printing apparatus that has a buffer for storing print data of each block and performs printing by scanning a printhead in a main scanning direction with respect to a printing medium on the basis of the print data stored in the buffer, comprising:
A method of controlling an information processing apparatus which transmits print data to a printing apparatus that has a buffer for storing print data and performs printing by scanning a printhead in a main scanning direction with respect to a printing medium on the basis of the print data stored in the buffer, comprising:
A program of causing a computer to control a printing apparatus which has a buffer for storing print data of each block and performs printing by scanning a printhead in a main scanning direction on the basis of print data from a host apparatus that is stored in the buffer, comprising:
A program of causing a computer to control a printing apparatus which has a buffer for storing print data of each block and performs printing by scanning a printhead in a main scanning direction on the basis of print data from a host apparatus that is stored in the buffer, comprising:
A program of causing a computer to control an information processing apparatus which transmits print data to a printing apparatus that has a buffer for storing print data of each block and performs printing by scanning a printhead in a main scanning direction with respect to a printing medium on the basis of the print data stored in the buffer, comprising:
A program of causing a computer to control an information processing apparatus which transmits print data to a printing apparatus that has a buffer for storing print data and performs printing by scanning a printhead in a main scanning direction with respect to a printing medium on the basis of the print data stored in the buffer, comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Arrangements for producing a permanent visual presentation of the output data
Arrangement thereof: for serial printing
Receiving particular commands: receiving printer configuration commands
Input data handling means: receiving print data characterized by its formatting, e.g. particular page description languages
Term end not estimated
The present invention relates to a printing apparatus and printing method and, particularly, to a technique of implementing a low-cost, high-speed, high-quality printing apparatus. More particularly, the present invention relates to an inkjet printing apparatus and control method therefor which maintain a high speed or high image quality while reducing the RAM capacity or ROM capacity in the printing apparatus or the number of gates of an ASIC to implement a low-cost printing apparatus. The present invention also relates to an inkjet printing apparatus and control method therefor which perform printing proper for the relationship between the host apparatus of a system and the printing apparatus.
Inkjet printing apparatuses have widely been used in printing apparatuses, copying machines, and the like because low noise, low apparatus cost, low running cost, compact apparatus, and the like can be facilitated.
A conventional serial inkjet printing apparatus prints one page by repeating main scanning of scanning a printhead in the main scanning direction and sub-scanning of conveying a printing medium in the sub-scanning direction. The serial inkjet printing apparatus ensures a memory (print buffer) having a capacity enough to store print data of at least one scanning. After all print data of one scanning is stored in the print buffer, main scanning of the printhead starts. Especially with the development of color printing apparatuses and an increase in resolution in response to demands for higher image qualities, the capacity necessary for the print buffer increases. The printing apparatus requires an expensive larger-capacity memory, resulting in a high apparatus cost.
FIG. 1 is a perspective view showing the schematic arrangement of an inkjet printing apparatus to which the present invention can be applied;
FIG. 2 is a view showing the orifice layout of a printhead according to the first embodiment;
FIG. 3 is a block diagram showing the main arrangement of the inkjet printing apparatus to which the present invention can be applied;
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
(First Embodiment)
FIG. 1 is a perspective view showing the schematic arrangement of an inkjet printing apparatus to which the present invention can be applied.