Image forming apparatus

Power is supplied from a capacitor (C) of an auxiliary power source (4) to a secondary heating element (2b) of a heating unit (2), thereby preventing temperature drop of a fixing roller (40) at the time of continuous paper delivery. An allowable range for starting discharge from the capacitor (C) is...

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Bibliographic Details
Main Authors KATO, YASUHISA, AMITA, AKIYASU, KISHI, KAZUHITO, MATSUSAKA, SUSUMU, TSUKIOKA, YASUTADA, OKAMOTO, MASAMI, TAKAGI, HIROMASA
Format Patent
LanguageEnglish
French
German
Published 10.08.2005
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:Power is supplied from a capacitor (C) of an auxiliary power source (4) to a secondary heating element (2b) of a heating unit (2), thereby preventing temperature drop of a fixing roller (40) at the time of continuous paper delivery. An allowable range for starting discharge from the capacitor (C) is set to, for example, 30 to 40 volts. A discharge time in which the voltage of the capacitor (C) reduces to a termination value, such as 20 volts, is longer than a time necessary for a reading unit (11) to read a maximum number (for example, 100 sheets) of documents that can be read at one time.
Bibliography:Application Number: EP20050001735