Title:
IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JPH0375805
Kind Code:
A
Abstract:
PURPOSE:To share AC electric parts even if the voltage of commercial power source is different by comparing an AC input voltage with a reference voltage, discriminating which kind of voltage in two voltage groups of commercial power source it is and correspondingly changing the voltage. CONSTITUTION:AC power source 63 supplied from an input terminal is inputted to an input voltage detection circuit 64 in a low voltage power source 57. The input voltage detection circuit 64 discriminates whether the AC input voltage is more than 150 V or not. As for the voltage of 150 V, namely, more than the reference voltage, the AC input voltage is dropped to half. The AC input voltage is used as it is except for such case. Thus, the AC electric parts can be used without being conscious of the input voltage and the cost of the AC electric parts can be reduced.
Inventors:
MATSUURA TOMOYUKI
FURUTA HIDEKI
FURUTA HIDEKI
Application Number:
JP21075889A
Publication Date:
March 29, 1991
Filing Date:
August 17, 1989
Export Citation:
Assignee:
FUJI XEROX CO LTD
International Classes:
G05F1/14; B41J29/38; G03G15/00; G03G15/20; G05F5/00; H02H11/00; (IPC1-7): G05F1/14; G05F5/00
Domestic Patent References:
| JPS496260A | 1974-01-19 | |||
| JP38013178A |
Attorney, Agent or Firm:
Umeo Yamauchi
Next Patent: MULTIPROCESSOR SYSTEM