JPS58194052A - Power saving mode display of copying machine - Google Patents

Abstract

PURPOSE:To save electric power and to improve visibility to an operator, by cutting off or reducing electric power supply to a heater for a fixing roll when a request for copying is not presented within a specified time after the completion of copying operation, and displaying that on a display for the number of sheets. CONSTITUTION:Once a microcomputer for controlling a copying machine indicates a power saving mode, the power supply to the heater for fixation is cut off or reduced. When a start switch is turned on, the power saving mode is reset. After the heater temperature rises sufficiently, the copying operation is started with the start switch. On the copying operation, a timer for power saving mode is actuated. If copying does not start within the specific time, the power saving mode is entered. In the power saving mode, the mode is displayed on the display for the number of sheets. For example, only the intermediate-stage lateral bar of a segment display is radiated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power-saving mode display device for a copying machine, and more particularly to a power-saving mode display device for a copying machine that improves visibility while reducing costs.

Conventional power saving mode display devices for copying machines, for example, cut off the power supply to the heating roll of the fuser or reduce the power supply if there is no copy request for a predetermined period of time after the copy operation is completed. Some devices enter a power-saving mode to reduce power consumption, and display the fact that the power-saving mode has been entered on a power-saving mode display.

However, in conventional power saving mode display devices for copying machines, the dedicated display section for displaying the power saving mode is located at the corner of the copying machine due to console space constraints. However, there are restrictions on the cost, and there is a risk that the cost will increase.

The present invention has been made in view of the above.

The present invention provides a power saving mode display device for a copying machine which is designed to improve visibility while reducing costs.

The power saving mode display device for a copying machine according to the present invention will be explained in detail below.

FIG. 1 shows an embodiment of the present invention, which shows a switch operation section 1 (including various switches such as a numeric keypad switch, a start switch, a stop switch, a clear switch, etc.) provided in a console of a copying machine, and a switch operation section 1 provided in a console of a copying machine. Part 1
It inputs command signals input by the operator and status signals of the copying machine input from sensors (not shown) in each part, processes and calculates the signals, and controls each part of the copying machine based on the results. A microcomputer 2 (an input interface 21 for signal input, an RoM 22 that stores programs necessary for signal processing calculations, a RAM 23 that stores data in processing calculation results, etc., a CPU 24 that executes processing calculations, It has a copy interface δ which outputs a control signal based on the set number of copies), a copy number display unit 4 which enables signal input from the switch operation unit 1 to the microcomputer 2 (displays both the number of set copies and the number of counted copies), and Drive circuits 3a, 3b, and 3c (time-divisionally controlled by the icon 2) control the display of the copying machine status display section 5 (for example, displaying "Ready to copy" or "Please replenish copy paper"). ), the drive circuit 6 is driven under the control of the microcomputer 2, and causes the copy count display section 4 and the copier status display section 5 to display (based on the signal processing results), and the microcomputer 2 enters the power saving mode. It has a power supply circuit 9 (9a is an AC power supply) that cuts off or reduces the power supplied to the heater 8 of the heating roll 7 of the fixing section E for the copying machine when a power saving command signal is output. Note that 1o is a photosensitive drum, A is a charging section, B is an exposure section, C is a developing section, and D is a transfer section.

The operation of the above configuration will be explained based on the flowchart of FIG. 2 (based on the program processing of the microcomputer 2).

(]) Before the copy operation, a signal indicating the number of copies set is inputted from the immediate hold switch operation section 1, and the number of copies set is displayed on the number of copies display section 4.

(2) When the start switch is on or negative, when the copy set number switch is turned on (2m), a timer (power saving mode 3-mode timer (2b).

(3) Can copying be performed? If copying is possible, the copying operation will be performed (the aforementioned power saving mode timer will be inhibited from counting). When you are ready to copy, check if you are in power saving mode (3a), if yes, turn off power saving mode (3b).
).

(4) Copying ends or when the number of copies becomes equal to the number of set sheets.

Button: Copying operation stops when copying is complete.

(6) Upon completion of copying, the power saving mode timer starts counting.

(7) When the time is over or the copy ends The edge power saving timer has elapsed for a predetermined period of time, a power saving command signal is output from the microcomputer 2.

(8), (9), (10) Setting up the power saving mode Displaying the power saving mode on the number of copies display section 4 by outputting the power saving command signal, for example, lighting up the horizontal segment in the center. The display is done,
Additionally, a power saving flag (Flag) is set up within the Mycoi 2. At the same time, the power supply path 9 cuts off or reduces the power supply to the heater 8 of the heating roll 7 and enters the power saving mode.

As explained above, according to the power saving mode display device for a copying machine according to the present invention, the power saving mode '4' is displayed in the copy set number display section or the copy count number display section on the console.
Since the display is displayed in r, visibility can be improved while reducing costs.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention. Figure 2 is #I
7--Chart in Figure 1. Explanation of symbols

Claims (1)

[Claims] When a copying machine has a set number display unit that displays the number of copies set or a count number display unit that displays the number of copies copied, power is not supplied to the heating roll heater when there is no copy request for a predetermined period of time from the end of copying. A power-saving mode display device for a copying machine, comprising a control unit that establishes a power-saving mode by shutting off or reducing the power, and displays the power-saving mode on the set or count number display unit.