The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2000
Filed:
Jul. 09, 1993
Sumitake Kobayashi, Kawasaki, JP;
Atsuo Matsunaga, Kawasaki, JP;
Ichiro Kawabata, Kawasaki, JP;
Ryozo Furutani, Kawasaki, JP;
Tomomi Ohta, Kawasaki, JP;
Seiichi Kamon, Kawasaki, JP;
Hiromitsu Nishimura, Kawasaki, JP;
Akihiro Abe, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
When a control unit is in a non-operating (non-printing) state, data to be saved (character-image data) in a RAM cache memory is transferred to a disk cache memory at regular intervals in order of priority, thereby saving the data in the disk cache memory. If a power supply is cut off and then power is reintroduced, high-priority character-image data, which has been transferred from the RAM cache memory to the disk cache memory and saved in the disk cache memory when printing is not being carried out, is restored in the RAM cache memory. As a result, the high-priority data saved in the RAM cache memory when the power supply was cut off can be restored in the RAM cache memory, thereby raising the hit rate.