US 4,394,087 AGranted

Mechanical arrangement for controlling electrophotographic apparatus

AssigneeMinolta Camera Kabushiki Kaisha

InventorsYutaka Irie, Kenzo Nagata, Hideo Ito

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Abstract

An improved mechanical arrangement which includes a controlled device, an operational device for adjusting an active state of the controlled device through external operations and a control device for controlling the active state of the controlled device in response to operations of the operational device. The operational device includes an indicating arrangement for indicating changes in the active state of the controlled device stepwise, an UP operating arrangement for increasing one step by one step an indication of the indicating arrangement and a DOWN operating arrangement for decreasing one step by one step the indication of the indicating arrangement, and thus the mechanical arrangement has been made free from erroneous operations due to the improved operational efficiency, simple in structure and highly reliable in actual use.

Claims18

Dependent claims

A mechanical arrangement including a device to be controlled, an operational device for adjusting an active state of said controlled device through external operations and a control means for controlling the active state of said controlled device in response to operations of said operational device,

said operational device comprising:
indicating means for indicating changes in the active state of said controlled device stepwise;
UP operating means for increasing one step by one step an indication of said indicating means;
and
DOWN operating means for decreasing one step by one step the indication of said indicating means;
said control means comprising:
means for changing the indication of said indicating means in response to operations of said UP operating means and said DOWN operating means and for changing the active state of said controlled device in accordance with the indication of said indicating means;
and
means for setting the indication of said indicating means and the active state of said controlled device to a predetermined standard value when said UP operating means and said DOWN operating means are operated simultaneously.

6 more elements

A copying apparatus including an exposure lamp, an operational device for adjusting light quantity of said exposure lamp through external operations and a control means for controlling the light quantity of said exposure lamp in response to operations of said operational device,

said operational device comprising:
indicating means for indicating changes in the light quantity of said exposure lamp stepwise;
UP operating means for increasing one step by one step the indication of said indicating means;
and
DOWN operating means for decreasing one step by one step the indication of said indicating means;
said control means comprising:
means for changing the indication of said indicating means in response to operations of said UP operating means and said DOWN operating means and for changing the light quantity of said exposure lamp in accordance with the indication of said indicating means;
and
means for setting the indication of said indicating means and the light quantity of said exposure lamp to a predetermined standard value when said UP operating means and said DOWN operating means are operated simultaneously.

6 more elements

A copying apparatus including a device to be controlled, an operational device for adjusting an active state of said controlled device through external operations and a control means for controlling the active state of said controlled device in response to operations of said operational device,

said operational device comprising:
indicating means for indicating changes in the active state of said controlled device stepwise;
UP operating means for increasing one step by one step an indication of said indicating means;
and
DOWN operating means for decreasing one step by one step the indication of said indicating means;
said control means comprising:
means for changing the indication of said indicating means in response to operations of said UP operating means and said DOWN operating means and for changing the active state of said controlled device in accordance with the indication of said indicating means;
and
means for setting the indication of said indicating means and the active state of said controlled device to a predetermined standard value when said UP operating means and said DOWN operating means are operated simultaneously.

6 more elements

Dependencies are inferred from the claim text.