Power supply control device for copier having timer

• US 4,677,310 A
• Filed: 04/17/1985
• Issued: 06/30/1987
• Est. Priority Date: 04/23/1984
• Status: Expired due to Term

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Hirono, Tatsuo, Yoshino, Hirobumi, Shinada, Masayuki, Shibusawa, Mitsuo, Midorikawa, Akira, Ito, Masaji
• Primary Examiner(s): Shoop, Jr., William M.
• Assistant Examiner(s): Ip, Shik Luen Paul
• Application Number:
  US06/724,273
• Time in Patent Office: 804 Days
• Field of Search: 307/64, 307/115, 307/141, 307/141.4, 355/3 R, 355/14 R, 355/14 C, 355/14 CU, 355/14 E, 340/711, 340/365, 340/712, 340/286 M, 340/524, 340/525, 360/33.1, 360/60, 360/69, 368/246, 368/247, 358/335, 369/19, 369/20, 364/145
• US Class Current: 307/64
• CPC Class Codes: G03G 15/5004 Power supply control, e.g. power-saving mode, automatic power turn-off
• CPC Class Codes: G03G 15/80 Details relating to power supplies, circuits boards, electrical connections
• CPC Class Codes: G05B 19/102 for input of programme steps, i.e. setting up sequence

Abstract

A power supply control device for a copier of the type having a timer therein is disclosed. The device allows a power supply of the copier to be turned on and off at any desired time which is set through ten keys. Data entered through the ten keys are loaded in a store. The data read out of the store and present time data output from the timer are compared and, as they compare equal, a power supply driver turns on the power supply. Guidance displays are referenced in the event of entering data.

Claims

1. A power supply control add-on device for programmably controlling the operation of a copier, said copier having a power supply, at least ten keys for setting the number of copies to be made, a timer for counting days of the month, days of the week and time, a display means for displaying the days of the month, days of the week and the time, said copier further including a plurality of function keys for controlling the copying features of said copier, said add-on control device comprising:

a key switch controller connected to receive a signal output associated with said at least ten keys and said plurality of function keys wherein said controller outputs a set of control data in response to the depression of at least one of said plurality of function keys and a plurality of said at least ten keys wherein one of said at least one of said plurality of function keys is a key for controlling the on and off times based on a day-of-the-week basis and wherein a plurality of said at least ten keys is identified with a day-of-the-week setting mode when said one key controlling the power-on-power-off times on a day-of-the-week basis is operated;

a storage means for storing said set of control data;

a comparator means connected at one input to said timer for receiving time data and at a second input to said storage means for receiving said stored set of control data wherein said comparator generates a signal output when said time data equals said set of control data; and

power supply driving means for controlling the on-off state of said power supply in response to said generated signal output of said comparator.

2. A power supply control device as claimed in claim 1, further comprising a power supply for backing up said storage means.

3. A power supply control device as claimed in claim 1, wherein the key switch controller comprises a central processing unit (CPU), an input/output (I/O) port interconnected to said CPU, a decoder driver interconnected to said I/O port, and a key switch group interconnected to said decoder driver and the I/O port and comprising various switches respectively associated with said at least ten keys.

4. A power supply control device as claimed in claim 1, wherein the power supply driver comprises a relay.