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:
Mar. 11, 2003
Filed:
May. 07, 2001
Franz Allmendinger, Aichwald, DE;
NexPress Solutions LLC, Rochester, NY (US);
Abstract
Generating and adjusting temperature values (T , T , T ) in a fixing roller (FR), which is mounted in a copy machine, can be switched to various operational states (W, A, and F) and can be used for fixing of toner images transferred on imaging materials (P). The fixing roller can be heated by a heating unit (H ) connected to a control/adjustment unit (CU), can be switched to generate and adjust predetermined temperature values (T , T , T ), and its heating level (Ph) can be regulated. The temperature values (T , T , T ) at the outer surface (FS) can be measured by at least one temperature sensor (ST). The outer surface of the fixing roller can be cooled by blowing airflow (AJ, AJ ) supplied by a controllable cooling unit (CO). The cooling unit (CO) creates a cooling strip (CA, CA ) on the outer surface of the fixing roller, and the blowing air level (Pc) can be controlled and adjusted by a control/adjustment unit acting upon the compressed air source (BL, AS).