JPS62167063A - Recording apparatus - Google Patents

Abstract

PURPOSE:To prevent the erasure of receiving data, by providing a control means for releasing an interruption processing state when a ROM cartridge is mounted to re-open recording operation from a recording stop position. CONSTITUTION:When a ROM cartridge 6 is pulled out, the input at the interruption terminal INT of CPU2 changes to a low level and CPU2 transfers to an interruption processing state to necessarily stop recording operation. At this time, a resistor 14 and a condenser 15 constitute an integrating circuit and chattering generated when the cartridge 6 is pulled out and inserted is prevented. Thereafter, when the ROM cartridge 6 is mounted, the interruption processing state is released and recording is again re-opened from a recording stop position. If recording is finished, the whole of recording operation is finished.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention converts recording data sent from a host such as a microcomputer into characters/symbols or graphic patterns composed of a dot matrix and records them on recording paper. The present invention relates to a recording device for recording.

[Prior Art] Examples of printing devices (recording devices) that print (record) characters and symbols composed of dot matrices include wire dot printers and thermal printers.

Regardless of the type of inkjet printer, these printers print ASCII, JI38 Hitco-1, etc. print coats sent from a host device such as a microcomputer in a single vertical 7-dot format ( iffi
A ROM is required to store a print pattern to perform a print pattern formed by a 1-dot matrix such as 5 dots. CGRO this ROM
Call it M.

Normally, this CG RONA 41 is mounted on a printed circuit board inside the main body of the printing device, and is used for printing. If you don't remove the exterior of the main body of 1 loaf, you can't replace it = 1-.In response to a request to change the font to ``1i,'' or to change the font (Court Sera), we changed the CGROM. There are printing devices on the market that can be separated from the main body's printed circuit board to form a CGROM cartridge consisting of a CGROM, a printed circuit board, and its exterior, and that can be easily inserted and removed from the outside.

(Problem to be Solved by the Invention) In conventional printing devices of this type, if the CGROM cartridge is removed during printing, the correct printing pattern will not be output from the CGROM, resulting in continued erroneous printing. Ta. Additionally, when the CGROM cartridge is removed, some machines use a mechanical switch to hard reset the CPU on the main body to stop printing.

However, with this method of applying a heart reset to the main body's CPU when the CGROM cartridge is removed, there is a problem of whether printing errors can be avoided, or the data received by the printing device before being removed will be lost. .

(Means for solving the problem) In view of the above points, if the ROM cartridge is removed during recording, the recording operation will be stopped by entering an interrupt processing state, and if the ROM cartridge is subsequently inserted, an interrupt will be issued. A control means is provided for canceling the processing state and restarting the recording operation from the recording stop position.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing the configuration of a printing device according to the present invention. The printing device includes a CPU (central processing control circuit) 2 that performs all controls, a control ROM 3 that stores programs for operating the CPU 2, and a data reception circuit that receives print data codes and control codes from an external host device 4 such as a microcomputer. 5. A CGROM cartridge 6 that can be inserted and removed from the outside of the main body to store the printing pattern for converting the printing data code into a dot matrix pattern to be actually printed; a RAM ( The printing section 8 includes a random access memory (random access memory) 7, and a print head for printing in a dot matrix. Here, except for the ROM cartridge 6, the printed body 1 is composed of the above elements.

FIG. 2 shows the attachment/detachment part of the CGROM cartridge 6.
is the card edge connector of the device main body 1, and CGRO
The M cartridge 6 is installed and removed.

In the figure, data bus 1 address bus and memory;
l (Signal lines such as control signals are omitted. 10 is the 5■ application terminal of the connector, 11 and 12 are the GND terminals, 1
3.14 is a resistor, ]5 is a capacitor, and 16 is a Schmidt type inverter. The output of the inverter 16 is
Connect to INT which is the interrupt terminal of 2.3. It's on sale.

Figure 3 shows the connection terminals provided on the print board (on the opposite side) of the CG ROM cartridge 6, including the 17, 5, and 18 terminals.
19 or GND terminal, and other terminals or data puff 2. This is a terminal for address bus, memory control number V, etc.

Next, the operation will be explained based on flowchart 1 in FIG. First, when a recording start signal is output from the CPU 2 (step St), it is detected whether the CGROM cartridge 6 is attached to the connector 9 (step S2).

When the inverter 16 is not installed, the power of the inverter 16 is at a high level, so the interrupt terminal TNT is at a low level, and the process moves to interrupt processing, and warning processing A is performed.
Proceed to. On the other hand, when the device is being attached (, l:, the manual power of the INT terminal is fixed at a high level, and there is a lot of CG input during the recording process (step S3).
It is detected whether the ROM cartridge 6 has been removed (
In step S4), if the thread is not pulled out, it is determined whether the recording operation has been completed or not (step 510), and if it has not been completed, the recording processing routine is executed.

On the other hand, when the ROM cartridge 6 is pulled out, the C
The power of the interrupt terminal INT of the PU2 changes to low level, and the CPU 2 enters the interrupt processing state (step S5), and inevitably stops the recording operation (step S6). At this time, the resistor 14 and the capacitor 15 constitute an integrating circuit to prevent chattering when the cartridge 6 is inserted or removed. After that, when the ROM cartridge 6 is installed, the interrupt processing state is canceled and recording is resumed from the position where recording was stopped (steps S7, S8, and S9). When the recording is completed, the entire recording operation is terminated.

Due to the circuit operation described above, when the CGROM cartridge 6 is removed while the printing device is printing, the CPU is interrupted, the printing operation is stopped by the software interrupt processing, preventing erroneous printing, and when it is set again, an interrupt is generated. By canceling this, the software resumes the conversion from the print code to the print pattern according to its normal routine, and can automatically resume printing from the next character/symbol that was printed immediately before the interruption.

As shown in Figure 3, the shape of the terminals on the printed circuit board on the CGROM cartridge side is changed to 1 for the power supply line.
7. By making the signal longer by 18.19 and applying it earlier when setting than the power supply of the CGROM cartridge or other signals, and applying until later when removing it, the CGROM cartridge can be destroyed with the power applied to the main body. It can be inserted and removed without any problems.

[Effects] As described above, according to the present invention, when the CGROM cartridge is removed during recording, the recording is interrupted without operating, and when the CGROM cartridge is inserted again, the received data is not erased and the recording is stopped before the recording is interrupted. Recording can now be automatically resumed from the next character recorded. Also, different ordinary C
By replacing the GROM cartridge, it is possible to change the font of one line and add an accent, making it possible to provide a very effective recording device.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a printing device in an embodiment of the present invention, FIG. 2 is a block diagram showing a ROM cartridge connection section, and FIG. 3 is an explanatory diagram of the terminal shape of the printer 1 board of the CGROM cartridge. Figure 4 is a flowchart. 1-111 Printing device main body 2----CP U6---
-CG ROM cartridge 7---RA M8-
111 Printing section 9-111 Connector 16---Inverter

Claims (1)

[Claims] a recording unit that records in a dot matrix format; a memory unit that stores data to be recorded; a ROM cartridge that generates a unique dot matrix pattern for each data in the memory unit and is removably provided;
a detecting means for detecting the installed state of the ROM cartridge; and when the ROM cartridge is pulled out during recording in the recording section, the system enters an interrupt processing state and stops the recording operation, and when the ROM cartridge is subsequently installed, the interrupt processing state is set. What is claimed is: 1. A recording apparatus comprising: control means for canceling the recording operation and restarting the recording operation from the recording stop position.