Image forming apparatus and method, and image forming system
AssigneeFuji Xerox Co., Ltd.
InventorTakeshi Nishimura
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a first processing unit and a second processing unit. The first processing unit receives multi-valued first compressed image data in accordance with a first compression format that is a variable length compression format. The first compressed image data are externally transferred to the first processing unit. The first processing unit then converts the first compressed image data into second compressed image data in accordance with a second compression format. The second processing unit performs expansion and binarization processes on the second compressed image data, and outputs the second compressed image data to a printer engine.
Claims18
An image forming apparatus comprising:
- a first processing unit that receives multi-valued first compressed image data in accordance with a first compression format that is a variable length compression format, and converts the first compressed image data into second compressed image data in accordance with a second compression format, the first compressed image data being externally transferred to the first processing unit;
- and
- a second processing unit that performs expansion and binarization processes on the second compressed image data, and outputs the second compressed image data to a printer engine.
An image forming method comprising the steps of:
- receiving multi-valued first compressed image data in accordance with a first compression format that is a variable-length compression format, the first compressed image data being externally transferred;
- converting the first compressed image data into second compressed image data in accordance with a second compression format;
- performing expansion and binarization processes on the second compressed image data;
- and
- outputting the second compressed image data to a printer engine.
An image forming system comprising:
- a host computer;
- and
- an image forming apparatus that is connected to the host computer, and includes a first processing unit that converts multi-valued first compressed image data in accordance with a first compression format as a variable-length compression format into second compressed image data in accordance with a second compression format, and a second processing unit that performs expansion and binarization processes on the second compressed image data and then outputs the second compressed image data to a printer engine, the first compressed image data being transferred from the host computer to the first processing unit.
Dependencies are inferred from the claim text.