Toner image fixing apparatus having standby mode temperature control device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 17, 2000
Grant Date -
N/A
app pub date -
Feb 4, 1999
filing date -
Feb 9, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A toner image fixing apparatus has a fixing roller, a pressing roller normally urged toward the fixing roller for pressing a sheet with an unfixed toner image carried on a surface thereof against the fixing roller to fix the unfixed toner image to the sheet when the sheet passes in one direction through a rolling contact region between the fixing roller and the pressing roller, a heating roller disposed on one side of the fixing roller opposite to the pressing roller, the heating roller having a heating source disposed therein for heating the heating roller, an endless heat transfer belt trained around the heating roller and the fixing roller for transferring heat from the heating source to heat the unfixed toner image on the sheet when the sheet passes through the rolling contact region, and a standby mode temperature control circuit for maintaining temperatures of the fixing roller and the pressing roller in a predetermined temperature range in a standby mode.
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