US 4,391,508 AGranted

Counter and timing mechanism for copying apparatus

AssigneeRicoh Company, Ltd.

InventorsMitsuo Shibusawa, Toshiyuki Ogawa

Life of this patent

Estimating the term…

Loading patent…

Abstract

A copying machine permits a desired number of copies to be set therein even in a warm-up period after a power switch is turned on, and starts the operation of a timer after a first display unit displays a copy ready condition. When a manual sheet feed switch is turned on, the entry of a desired copy number is inhibited. When the manual sheet feed switch is turned on after the entry of a desired copy number, a second display unit is loaded with a numerical value "1", the copy number is stored in a memory, and the timer is disenabled. As the manual sheet feed switch is turned off again, the preset copy number stored in the memory is indicated by the second display and the timer is activated.

Claims6

Dependent claims

Electrophotographic copying apparatus comprising:

copy number input means for the desired number of copies of an original document;
first display means for indicating the set number;
second display means for indicating a copy ready condition in which the apparatus is ready to perform a copying operation;
copy starter means for commanding a start of the copying operation;
timer means for controlling the first display means to automatically return the set number of copies to one if the copy starter means fails to command the start of a copying operation during a predetermined period of time after the number of copies is set by the copy number input means;
and
control means for controlling the copy number input means to permit the same to set the number of copies even during a period for which the apparatus stands ready to perform the copying operation.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/329,980Filed 11 Dec 1981
Priority: JP 55-17808318 Dec 1980
Granted: 5 Jul 1983
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G03G 15/50
Apparatus for electrographic processes using a charge pattern: machine control of apparatus for electrographic processes using a charge pattern,…
G03G 15/502
User-machine interface; Display panels; Control console: relating to the structure of the control menu, e.g. pop-up menus, help screens
G03G
Electrography

Family

No related US applications are recorded in the indexed filing history.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key