Global Patent Index - EP 0006553 A1

EP 0006553 A1 19800109 - Method and apparatus for operating a heat source in a reproduction machine.

Title (en)

Method and apparatus for operating a heat source in a reproduction machine.

Title (de)

Verfahren und Vorrichtung zum Betrieb einer Heizquelle in einem Kopiergerät.

Title (fr)

Procédé et appareil pour actionner une source de chaleur dans une machine à copier.

Publication

EP 0006553 A1 19800109 (EN)

Application

EP 79101972 A 19790615

Priority

US 92165978 A 19780703

Abstract (en)

Method and apparatus for operating and regulating a heat soucre (103) in a reproduction machine, particularly for a fuser in a copier. The machine is operable in at least 3 modes, a warm-up, a stand-by, and a copy mode. The amount of energy supplied to the heat source (103) depends on the present mode of the machine and the actual temperature T of the fuser: The supplied power is at level P1 during the warm-up mode until T >/= T1 (T1 is a given temperature). Then, power is reduced to P2. In stand-by mode, power is increased to P2 + DELTA P1, if T < T2 (T2 is a given operating temperature), and decreased to P2 - DELTA P1, if T >/= T2. In the copy mode, power is increased to P2 + DELTA 2 if T </= T2 and increased to P2 + DELTA P3 if T DELTA T2.

IPC 1-7

G03G 13/20; G03G 15/20

IPC 8 full level

G03G 21/14 (2006.01); G03G 15/20 (2006.01)

CPC (source: EP US)

G03G 15/2003 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0006553 A1 19800109; JP S559593 A 19800123; US T100804 I4 19810707

DOCDB simple family (application)

EP 79101972 A 19790615; JP 8026079 A 19790627; US 11026280 A 19800107