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:
Jun. 28, 1994
Filed:
Apr. 17, 1992
Yoshiharu Manabe, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A multiplex image forming apparatus remains in a standby state for multiple functions including a copier function, a facsimile function and a printer function at all times and, in a receive mode at night, fully deactivates devices to be not used, thereby saving power and reducing noise. The apparatus has a power source for a copier, and an application extending section capable of combining a facsimile function with the apparatus and a power source for a multiplex configuration for driving the application extending section. A first and a second power source switch is located at an input section preceding the two power sources. A detecting circuit is connected to the first power source switch to detect the turn-on and turn-off of the switch. Detection signal output control means transfers a detection signal from the detecting circuit to a control circuit only when the second power source switch is turned on and the first power source switch is turned off.