Display device for a recording device capable of displaying a plurality of operating states or conditions in effect
First Claim
1. A display device for a recording apparatus having a line buffer and a data input mechanism, comprising:
- a display means for selectively displaying one of a power-on state and a misoperation state resulting from a user'"'"'s misoperation of the recording apparatus;
a misoperation detection means for detecting the user'"'"'s misoperation; and
a control means for controlling the display means so as to change a display of the display means from the power-on state to the misoperation state upon detection of the user'"'"'s misoperation by said misoperation detection means, wherein the user'"'"'s misoperation comprises inputting an improper operating command for an operating state of the recording apparatus, said improper operating command comprising a command from one of a group of operations consisting of directing a print operation, a lineout operation, and a delete operation when the line buffer is empty;
selecting a function operation from a group of functions and issuing a subsequent execution command that is outside an allowable range of execution commands; and
inputting a character when the line buffer contains a predetermined number of characters.
1 Assignment
0 Petitions
Accused Products
Abstract
In a display device for a recording device, when the power supply of the recording device is switched on, a display lamp is lighted to display that power-on. When the recording device is operated, and recording information is input, a misoperation detection circuit detects misoperation. When a misoperation is detected, a controller controls the display lamp to indicate the misoperation. When a device-trouble is detected, such as lowering of voltage in the recording device, the controller controls the display lamp to indicate the misoperation. The display lamp displays for indicating device-trouble differs from both the display at power-on and the display indicating a misoperation.
23 Citations
14 Claims
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1. A display device for a recording apparatus having a line buffer and a data input mechanism, comprising:
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a display means for selectively displaying one of a power-on state and a misoperation state resulting from a user'"'"'s misoperation of the recording apparatus; a misoperation detection means for detecting the user'"'"'s misoperation; and a control means for controlling the display means so as to change a display of the display means from the power-on state to the misoperation state upon detection of the user'"'"'s misoperation by said misoperation detection means, wherein the user'"'"'s misoperation comprises inputting an improper operating command for an operating state of the recording apparatus, said improper operating command comprising a command from one of a group of operations consisting of directing a print operation, a lineout operation, and a delete operation when the line buffer is empty;
selecting a function operation from a group of functions and issuing a subsequent execution command that is outside an allowable range of execution commands; and
inputting a character when the line buffer contains a predetermined number of characters. - View Dependent Claims (2, 3, 4, 5)
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6. A display device for a recording apparatus comprising:
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a display means for selectively displaying one of a power-on state and a device-trouble state resulting from a potentially defective operation of the recording apparatus; a device-trouble detection means for detecting the potentially defective operation of said recording device; and a control means for changing the display of the power-on state in said display means to the display of the device-trouble state upon detection of said potentially defective operation, wherein the potentially defective operation is one in which if the operation were to be started, the recording apparatus might fail to complete execution of the operation, said device-trouble detection means detecting a battery low state indicating an inability of the recording apparatus to perform one of a group of operations consisting of printing and feeding a recording medium. - View Dependent Claims (7, 8, 9)
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10. A recording apparatus comprising:
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a display means for selectively displaying one of a power-on state of a power supply switch and a misoperation state resulting from a user'"'"'s misoperation of the recording apparatus; a misoperation detection means for detecting the user'"'"'s misoperation of the recording device; a first control means for controlling the display means so as to change a display state of the display means from the power-on state to the misoperation state upon detection of the user'"'"'s misoperation; a device-trouble detection means for detecting potentially defective operation of the recording apparatus; and a second control means for changing said display means to display the detection of a potentially defective operation state of the recording device, the display of the potentially defective operation state being different from the display of the power-on state and the display of the misoperation state, wherein the potentially defective operation is one in which if the operation were to be started, the recording apparatus might fail to complete execution of the operation. - View Dependent Claims (11, 12, 13, 14)
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Specification