Title:
INTERLOCK CIRCUIT AND IMAGE FORMATION APPARATUS
Document Type and Number:
Japanese Patent JP2016103906
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent an excessive rush current flow if a user intentionally opens and closes an interlock switch.SOLUTION: An interlock switch SW1 is switched on when a cover 130 is in a closed state, to cause a power line L1 to be conductive, whereas switched off when the cover 130 is in an open state, to open the power line L1. On the power line L1, a time constant circuit 2 is connected to the interlock switch SW1 side of a node N2. When a smooth voltage obtained by smoothing a voltage difference between divided voltage nodes N3, N4 becomes larger than a threshold, a switch control unit 10 determines that the user intentionally switches on/off the interlock switch SW1, to switch off a switch Q1.SELECTED DRAWING: Figure 3
Inventors:
TAKAYAMA RYO
Application Number:
JP2014240844A
Publication Date:
June 02, 2016
Filing Date:
November 28, 2014
Export Citation:
Assignee:
KYOCERA DOCUMENT SOLUTIONS INC
International Classes:
H02J1/00; G03G21/00
Domestic Patent References:
| JP2001216857A | 2001-08-10 | |||
| JP2012157146A | 2012-08-16 |
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Koji Nishitani
Masataka Otani
Koji Nishitani