JPH0786813B2 - Document editing printer - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document editing printing apparatus, and more particularly, to improving safety and printing operability when a printer cover of a print head unit is opened during printing. The present invention relates to a document edit printing apparatus.

[Conventional technology]

The wired printer, which is most often used as a printing apparatus such as a personal computer or a Japanese word processor, is required to shorten the printing time from the viewpoint of improving work efficiency. Therefore, it is desired to increase the printing speed of the printing apparatus. When the printing device becomes faster, the speed of movement of the print head during printing naturally increases, and there is a risk of injury if the cover of the printing device is opened during printing and you accidentally put your hands in it. Also, if foreign matter enters, the device may be damaged.

Therefore, when the cover of the printing device is opened, the printing device stops the printing operation and puts it in the offline state.
A processing means for ensuring safety is provided.

[Problems to be Solved by the Invention]

In a system such as a Japanese word processor (hereinafter referred to as WP) that always uses the printing device online, if the printing device goes offline, it will be treated as if the printing device failed. , When the printer is brought back online, it is common to eject the paper and wait for the print data to be returned to the initial state of the printing device.
The data being printed was not retained and the printing operation had to be restarted from the beginning.

This is because if you accidentally open the cover, or if you open the cover to check that printing is done correctly,
In both cases, the print data lost during printing was lost, and printing had to be performed again from the first page. Therefore, there was a problem that the operability was very poor and the printing paper wasted.

SUMMARY OF THE INVENTION An object of the present invention is to provide a document editing / printing apparatus capable of solving the above-mentioned inconveniences and improving both safety and operability by the conventional technique.

[Means for Solving the Problems]

In particular, the above object is to provide a cover open / close detector that generates a cover open signal or a cover close signal in accordance with the cover open / close operation, and a means for monitoring the time from the occurrence of the cover open signal to the occurrence of the cover close signal for a predetermined time. A first error processing means for stopping the transfer of the print data to the printing device when the cover open signal is generated and holding the print data; and a cover close signal for closing the cover within the predetermined time after the cover open signal is generated. When the error occurs, the print restart processing means for restarting the transfer of the print data held by the first error processing means to restart the printing operation from the line next to the printed line, and the predetermined value after the cover open signal is generated. When the cover close signal does not occur within the time, the process shifts to the print error process and the print error process is executed.
It is achieved by providing the error processing means of.

[Action]

Since the printing apparatus itself cannot determine whether or not the cover is opened by mistake during the printing operation, the printing operation is uniquely stopped to ensure safety. According to this, the printing operation can be restarted from the line next to the printed line, the operability is improved, the waste of printing paper is eliminated, and error processing is executed when the cover open signal continues for a predetermined time or longer. Therefore, it does not hinder safety.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a flow chart of the printing process in the present invention, FIG. 2 is an external view of an apparatus of one embodiment, FIG. 3 is a block configuration diagram of the embodiment, and FIG. 4 is an error signal table used in one embodiment. .

In FIG. 3, a WP (word processor) 4 temporarily stores an input signal 1 for inputting a character code and a control command, an overall control unit (CONT1) 41 for controlling the whole, and character information, a control command and management information. A page memory (PM) 42 to be stored, a display device (CRT) 2 for displaying character information input from the input device 1, a display controller (CRTC) 45, a refresh memory (RM) 44, and a character. Generator (C
G) 43 and the first and second flexible disks (FD) 5 and 6 which are external storage devices, and are connected to the printing device 3 via the interface cable 40. The printing device 3 includes a controller (CONT2) 31 for controlling the printing device, a program ROM (PROG / ROM) 32 in which a control program is stored, a print head 33 and a driver 33a for the print head 33, and an interface unit with the WP4 ( I /
F) 34, a cover open / close detector (C / O sensor) 35 that detects the opening / closing of the printer cover (30 in FIG. 2), and a paper presence / absence detector (P / E sensor) 36 that detects the presence or absence of paper. , SP motor 37 for moving print head 33 and its driver 37
a, an LF motor that sends printing paper and its driver 38, 38a
It consists of and.

In FIG. 2, 1 is an input device, 2 is a display device, 3 is a printing device, 5 and 6 are flexible disks mounted on the drive device, 30 is a printer cover, and 41 is an overall control device, respectively. The printer cover 30 covers the print head 33 in the printing device 3 and has a structure that can be opened and closed.

With the above configuration, when the input device 1 inputs character information such as kana, alphabetic characters, and numbers and control codes for determining the operation of the WP4, the overall control device 41 is stored in the built-in storage device. The control function is determined by the program and controls document editing and printing. The first flexible disk 5,
The system program and the kana-kanji conversion dictionary are stored, and the second flexible disk 6 stores and saves a document created in the past or newly created document information. The page memory 42 is the input device 1
The document information input from or the document information read from the second flexible disk 6 is temporarily stored. In the refresh memory 44, the character string of the document displayed on the display device 2 is stored in the form of an address code which means the character shape storage address of the character generator 43, and the character generator 43 stores the character shape. It is what is done. The display controller 45 reads out a character string to be displayed from the refresh memory 44 and displays the character generator 43.
Is used to display the characters of the document on the display device 2.

Here, the overall control device 41 has a ROM that stores a part of the program as a part of the internal storage device, and the system program is read from the first flexible disk 5 by the program of the ROM when the power is turned on. It is ready to be loaded into its own RAM area. When the WP4 is set to the document edit mode, the overall control device 41 performs the document edit format setting process. In this document editing format setting, format setting items are displayed on the display device 2 and format information input by the operator via the input device 1 is stored. The document edit format setting items include a paper size, a paper direction, a vertical margin value, a character size, a character interval, a line interval, and the like. The character information input after the character edit format is set is managed according to this format information.

Next, when WP4 is set to the document print mode, the overall control device 41 performs a document print format setting process for document print. In this process, the format setting items are displayed on the display device 2, and the format information input by the operator via the input device 1 is stored.

The document print format setting items include a print target document name or document number, the number of print copies, a print page range, a paged range, a paged start number, a paper feeding method (automatic or manual), and the like. Then, the overall control device 41 performs the document data printing process with reference to both the information of the document edit format and the information of the document print format.

Next, the procedure of continuous printing when the printer cover is opened will be described according to the flow chart shown in FIG. When the print mode is selected from the input device 1 while the general control device 41 is ready, the general control device 41 sends a print instruction signal to the printing device 3 via the interface cable 40. The printing apparatus 3 receives the data from the controller 31 via the interface unit 34, performs initial setting processing for print preparation in the program ROM 32, and completes print preparation. Next, when print data is received from WP4, print head 33, SP motor 37, L
The F motor 38 is operated to execute the printing process.

When the printer cover 30 is opened during execution of this printing process, the cover open / close detector 35 operates and sends an open signal indicating that the cover has been opened to the controller 31 (process 101 in FIG. 1). At this time, since the printing is being performed at present, the process proceeds from step 102 to step 103, and the controller 31 prints the print data in the print buffer for one line and stops, and the cover open of the error signals shown in FIG. 4 is opened. The time signal is sent to the overall control device 41 via the interface unit 34. Processing 10
At 4, the overall control device 41 determines which of the error signals the received signal is, and if it is an error signal other than the signal at the time of cover open, shifts to step 107 and executes error processing. . If the signal is when the cover is open, process
In step 105, the timer is set to determine whether the cover open signal is released (the cover close signal is being generated).
If the cover open signal is not released within the set predetermined time, the process proceeds from step 106 to step 107, and error processing such as a print end instruction is executed. If the cover open signal is released within the predetermined time set in the timer, the process proceeds to step 108,
Print data is sent from the overall control device 41 to the printing device 3,
In process 109, print processing is executed. As a result, the printing is resumed from the line next to the printed line on the printing paper, and the safe printing operation can be performed.

〔The invention's effect〕

As described above, according to the invention, the cover open / close detector that generates the cover open signal or the close signal according to the open / close operation of the cover, and the time from the generation of the cover open signal to the generation of the cover close signal are predetermined. Time monitoring means, first error processing means for stopping the transfer of print data to the printing device and holding the print data when a cover open signal is generated, and within the predetermined time after the cover open signal is generated. When a cover close signal is generated at the print restart processing means for restarting the transfer of the print data held by the first error processing means and restarting the printing operation from the line following the printed line, and the cover open signal. When the cover close signal is not generated within the predetermined time after it is generated, the second error processing means for transitioning to the print error processing and executing the print error processing is provided. If you Rintakaba is open,
You can prevent waste of paper and improve operability by interrupting the printing operation to ensure safety and restarting printing from the line following the line that has already been printed when the printer cover is closed. If the cover continues to be opened for more than the predetermined time, error processing is executed, so that the safety of the entire device is ensured.

[Brief description of drawings]

FIG. 1 is a flow chart of a print processing operation of an embodiment of the present invention, FIG. 2 is an external view of an apparatus of an embodiment of the present invention, FIG. 3 is a block configuration diagram of the apparatus shown in FIG. The figure is an error signal table. 1 ... input device, 2 ... display device, 3 ... printing device, 4
...... Word processor, 30 …… Printer cover, 33 …… Print head, 35 …… Cover open / close detector, 41 …… Overall control unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-62-249779 (JP, A) JP-A-63-209971 (JP, A) JP-A-53-84638 (JP, A)

Claims (1)

[Claims] 1. A printing apparatus comprising: a print head; a cover for covering the print head; a means for detecting an open / closed state of the cover; and a means for stopping the printing operation of the print head when the opening of the cover is detected. In a document editing printing apparatus provided with a printing apparatus that gives a printing command and printing data to the printing apparatus to execute printing, a cover opening / closing detector that generates a cover opening signal or a closing signal according to the opening / closing operation of the cover. And means for monitoring the time from the generation of the cover open signal to the generation of the cover close signal for a predetermined time, and when the cover open signal is generated, the transfer of the print data to the printing device is stopped and the print data is held. The first error processing means and the print data held by the first error processing means when the cover close signal is generated within the predetermined time after the cover open signal is generated. Print restart processing means for restarting the transfer and restarting the printing operation from the line next to the printed line, and when the cover close signal is not generated within the predetermined time after the cover open signal is generated, transition is made to print error processing and printing is performed. A document editing and printing apparatus comprising a second error processing unit for executing error processing.