JPS63127277A - Electronic blackboard copying device - Google Patents

Abstract

PURPOSE:To prevent a trouble that the continuous copying of originals is interrupted, by providing a reporting means indicating the execution of original copying operation in the vicinity of a board written part and providing a control means which inhibits the copying of the board written part during the operation of originals. CONSTITUTION:A blackboard part body (board) 1 and a copying machine body 2 are provided, and the copying machine 2 is placed on a table 3 and can be rocked around a leg part 4. A sheet 7 is moved by a roll 31 driven by a motor 30, and the image on the sheet radiated with a lamp 33 is formed on an original surface to form an electrostatic latent image on a photosensitive drum 12 through a lens 23. The reporting means indicating the execution of original copying operation is provided in the vicinity of the board 1, and the control means is provided which inhibits the copying of the board 1 during the operation of originals on an original platen 11. Thus, the troubles that the continuous copying of originals is interrupted is prevented.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an IIL child blackboard copying device.

[Prior Art] In recent years, electronic whiteboard devices that can make both a copy of the board and a copy of the original have been considered.

[)Problems solved by A1] However, if the scanner gives priority to copying the blackboard part during continuous copying of the original, or tries to copy the blackboard part without realizing that continuous copying is in progress, the original This causes the inconvenience that the continuous copying of the data is interrupted.

[Means and effects for solving the problem] According to the present invention, continuous copying of the original is provided by providing a control means for prohibiting copying of the board section during the copying operation of the original, and a notification means indicating that the copying operation is in progress. A device for preventing the inconvenience of interruption (embodiment) FIG. 1 is an external view of an embodiment of the present invention. 1 in the diagram
2 is the main body of the blackboard section (hereinafter referred to as the board), 2 is the main body of the copying machine,
Reference numeral 3 denotes a stand on which the copying machine 2 is placed, a part of which is supported by legs 4, and can swing around the legs 4;
It has a structure that allows it to move horizontally with respect to the ground.

Reference numeral 5 is an auxiliary leg fixed to the table 3 and is movable together with the table 3. Reference numeral 6 designates an operating section when the copying machine is in electronic blackboard mode, 7 a belt-like sheet on which writing is possible, 8 an auxiliary pipe for the leg section 4, and 10 an operating section when the copying machine is used alone.

FIG. 2 is an internal structural diagram of the main body of the copying machine. Reference numeral 11 denotes a document table on which a document is placed during normal copying, and is composed of a document table cover 11-1 and a document table glass 11-2, and moves from side to side in the figure.

Reference numeral 13 denotes an illumination lamp for pre-exposure to erase residual charges on the photosensitive drum 12, blank exposure by reflecting off the blank exposure shutter 25, and image exposure for illuminating the document in copying machine mode.

Note that the blank exposure shutter 25 is opened and closed by the movement of the document table 11. 14 is a primary charger, 15 is a developing device, 16 is a transfer charger, 17 is a fixing device, 18 is a drum cleaning device, 19 is a paper feed roller, 20 is a paper ejection roller, and 22 is a paper ejection lever 21 that emits light. A photo ink printer that detects paper ejection by blocking light and allowing light to pass through. 23 is the lens (
Product name SELFOC Lens Array). 24 is a registration roller that adjusts the timing of the leading edge of the image.

FIG. 3 is a diagram showing the internal structure of the board and its relationship with the copying machine. Reference numeral 31 denotes a drive roller for moving the sheet 7, which is driven by the motor 30. The image on the sheet irradiated by the lamp 33 passes through an optical system of mirrors 34 and 35 and a lens 36, and is formed on the surface of the document, passes through the lens 23, and forms an electrostatic latent image on the photosensitive drum 12.

FIG. 4 is a block diagram of the board section 1 and the copying machine section 2. Each of them is managed by a CPU, and the CPU 37 of the board section inputs the output signal of the operation switch 6, and the driver 38. Lamp 34 via lamp regulator 39
and controls the motor 31.

In addition, 6-1 is a standard density setting button provided on the operation switch 6 of the board section, and 10-1 is the operation switch 1 of the copying section.
This is a density adjustment volume set at 0.

The CPU 60 of the copying section 2 manually inputs signals from the operation switch 10 and sends the driver 61 . The lamp regulator 62 controls the lighting of the lamp 13 and the main motor 63 that drives the photosensitive drum 12 and the like, and the driving force is transmitted to the paper feed roller 19 by the solenoid 44 to transport the paper and also to the document table 11. In order to move the document platen to a predetermined position, the document platen drive circuit 26 is activated by a signal from the document platen position detection microswitch 27.
The charger 14 is further controlled via a high voltage transformer 65.
, 16, to control the voltage applied to the developing device 15. After checking the copy preparation, the copy paper 9 should be conveyed toward the photosensitive drum at the timing when the leading edge of the image is aligned (the registration rollers 2
Rotate 4. In addition, each CPU 37, 60 receives a signal (pulse) from the standard density setting button 6-1 of the board part 1 in the standard density switching circuit of the copying part 2 in the electronic whiteboard mode by the interface 50.51, as shown in FIG.
U60 energizes the switch means 40 (relay, semiconductor switch, etc.) that switches the bias setting value sent to the high voltage transformer 65 between the concentration setting volume 10-1 in the operation unit 10 and a constant concentration value 42.

The configuration and control of the board section 1 and the copying section 2 have been outlined above, and detailed operations in this embodiment will be explained in Section 5-(a).
5-(b) and 5-(C) and the timing chart of FIG. 6.

First, by turning on the power switch in the operating section 6 of the board section 1, the copying section 2 enters the routine (101) of the control flowchart for the copying section 2 shown in FIG. 5-(a). At the same time, the board section 1 enters the routine (201) of the control flowchart of the board section 1 in FIG. 5-(b). This is copy section 2
Even if the door for jam removal in the printer is opened and the door is closed after the jam removal, both the copying section and the board section enter the same routine. The copying unit 2 is kept in a wait state until the temperature of the fixing device 17 reaches the set value, and if it is in the wait state (102), it outputs an oscillation pulse (board wait signal) to the board unit (10
3). Also, even when the copying unit is copying by itself (104), an oscillation pulse (board wait signal) is output (105).
. Upon receiving the oscillation pulse (board wait signal), the board unit 1 determines that the board printing operation is in a wait state (202), displays a wait state (203), and prints the board until the oscillation pulse (board wait signal) disappears. It does not go into the key receiving routine. The operations up to this point correspond to section A in the timing chart of FIG. 6 (BBIN is the output signal from the copying section). Next, when the copying section enters the standby state, it outputs a board standby signal to the board section (signal level is Hi), and the board section receives the signal and waits for the board print key to be pressed (
207), but during this time, if there is an abnormality such as a temperature control abnormality on the copying unit side, a PPC error signal is output and the signal level is LOW, and the board receives that signal and detects an error in the copying unit. It is determined that the copy unit is abnormal (205), a message indicating that the copying unit is abnormal is displayed (206), and the board print key is not accepted. However, even during this time, the sheet feed key on the board section is always kept in place. The operation up to this point corresponds to part B in the timing chart of FIG. When the board print key is pressed in this board print standby state (207),
A board print signal is output from the board section (208) (
(The signal level of BBOUT in the timing chart of FIG. 6 becomes Hi), and at the same time, the fluorescent lamp 3 of the board section 1
3 is turned on (211). However, fluorescent lamps have a characteristic that the light intensity rises depending on the temperature, and it takes time to reach the required light intensity, and it may not turn on when the temperature is abnormally low. Therefore, it is necessary to set the time to detect abnormalities in the fluorescent lamp.
09) Also, since the fluorescent lights of the copying section are turned on at this timing, also set the time to detect an abnormality in the copying section fluorescent lights (
210). At this time, when the copying section receives the board print signal (106), it turns on the fluorescent lamp of the copying section and sets a timer to detect an abnormality in the fluorescent lamp of the board section in the same way as it did for the board section (107). Furthermore, a timer is set to detect an abnormality in the fluorescent light in the copying section (108), and the document table is first advanced for board printout (110). The document table advances to the position where the blank shutter is always closed (112) using sensor outputs such as microswitches, and then stops (113). However, if the document table does not move due to some abnormality, the maximum required moving time (109)
), when the stop position is not reached within ) (114), an error is displayed on the original platen (5th-G, c) Fig. 116).

At the same time, a PPC abnormality signal is output to the board section (11
5). At the position where the original platen is stopped, it is determined whether the fluorescent light in the copying section has reached the required light intensity (117), and the process continues to wait until it reaches the required light intensity (118). However, if the required light amount does not reach 10, it is determined to be abnormal and the routine proceeds to the routine after FIG. 5-(c) 119.

When the predetermined amount of light is reached within the time, a copying room light OK signal is output to the board section (122), and the board waits for the signal to arrive (212). If the set time of (108) and the set time of (210) are made the same, the board section can detect an abnormality in the fluorescent lamp at the same time as the copying section using the input signal level (BBIN) of the interface (213). Thereafter, the board section displays an abnormality in the copying section, turns off the fluorescent lamp of the board section, prohibits the insertion of board print keys, and enters another key waiting routine. Then, the copying unit outputs a copying unit error signal (119) after the board unit detects an abnormality in the fluorescent lamps in the copying unit (in order to prohibit the print key on the board unit). Display and stop (1
21). (The operation up to this point is part 0 of the timing chart.) Next, after the fluorescent lamps in the copying section reach the required light intensity, an abnormality in the fluorescent lamps in the board section is detected. Do the same (123°124.215,21
6). In the event of an abnormality, the copying department will turn off the fluorescent lights.
) FIG. 125), performs a movement sequence of the document table to close the blank shutter (126), enters a post-rotation routine (127), and returns to the standby state. Turn off the fluorescent lights on the board 217) and display board abnormalities 218)
, the board copy key is prohibited (239), and after the time when the copying unit would have detected an abnormality in the fluorescent lamp of the board unit (220)
BBOUT is brought down (221). When the board fluorescent light reaches the required light m, outputs a board room light OK signal (222) (turns down BBOUT). (The operation up to this point is part C of the timing chart). Upon receiving this signal, the copying unit feeds paper (128), moves the document table to open the blank shutter (129), and stops at the document table position (131) where the optical path for board printing is secured (133). If there is paper at that time (134), a signal indicating that the copying unit is ready is output (135). During this time, the board section sets a paper out timer (223) and detects paper out and document platen abnormalities in the same way (224, 225° 136).
．． 137). However, if there is no paper, the board section will display P.
Although the PC error remains attached (226), the next board print key reception is not prohibited in either the board section or the copy section. (The timing chart up to this point is section E.) - When the paper is fed normally and the preparation for board print mode is OK, the board section rotates the sheet.
27), output a registration timing signal (228)
. (The timing chart up to this point is section F.) Upon receiving this signal (136), the copying section drives the registration rollers and conveys the copy paper (137). If the standard density setting button on the control panel of the board is pressed (229
), the board section outputs a standard density signal (230) (it outputs a pulse as shown in section G of the timing chart).

When the copying section receives the standard density signal (138), it drives the bias value switching circuit shown in FIG. 7 to switch to the standard density bias (139). When the exposure of the sheet surface of the board is completed (231), an end signal is output (232), and the sheet is stopped (at the H section in the timing chart) (233).
, After a predetermined time, turn off the fluorescent light on the board 234°23
5) Enter the board into standby mode.

When the copying section receives the exposure end signal (140), it enters a routine for closing the blank shutter (141), then performs a post-rotation routine (142), and enters standby mode. (The above is part of the timing chart.) If a paper jam occurs in the copying unit during sheet exposure (143), a copying unit error signal is output and BBIN is lowered from Hi to Low) (144), a jam is displayed. Stop (145).

The board section receives this signal (236), turns off the fluorescent light in the board section (237), stops the sheet at a position one page forward from the point where exposure started (238, 239), and returns to the key human power waiting routine. move on.

[Effects] As described above, the unissued IJ1 prevents interruption of continuous copying of an original and notifies the operator that the original is being copied.

[Brief explanation of the drawing]

Fig. 1 is an external view of an electronic blackboard embodying the present invention, Fig. 2 is a perspective view of the main body of the copying machine, Fig. 3 is the board part, and Fig. 6 is the board part, timing 1 in board print mode, and 2. is the copying section, 6 is the operation section of the board section, 6-1 is the standard density setting button, 7 is the sheet, 10 is the copying section operation section, 10-1 is the copying section density setting volume, 11 is the original table, 13 is the copying section 19 is a paper feeding roller, 24 is a registration roller, 25 is a blank YATA, 33 is a board fluorescent lamp, 40 is a bias mode switching means, and 42 is a standard density value setting resistor.

Claims (1)

[Claims] An original mounting stand, a copying section for copying the original placed on the above-mentioned mounting stand, a board writing section, and a copying machine/electronic blackboard copying device that allows the copying section to copy an image written on the board writing section. The electronic device is characterized in that it has a notification means provided near the board writing section to indicate that the original is being copied, and a control means for prohibiting copying of the board writing section while the original is being copied. Blackboard copying device.