JPH05155111A - Printing apparatus - Google Patents

Abstract

PURPOSE:To provide a printing apparatus with which resetting of initializing values is unnecessary When changing emulation functions, registration of initializing values including specific functions pertaining to individual printing apparatus is possible, and previous or replaced values are usable for setting initializing values even after emulations for the printing apparatus are changed. CONSTITUTION:In the case where initializing data for initializing a nonvolatile parameter memory means storing parameters corresponding to each of a plurality of emulation programs are existent, writing-in of an emulation program from a program memory means (emulation card) 5 exchangeably mounted to a printing apparatus main body 2 is prohibited, and parameters stored beforehand are made effective.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer capable of emulating two or more different printers.

[0002]

2. Description of the Related Art In a conventional printing device, it is necessary to reset the initial setting value for the printing device each time the emulation function is switched. In addition, another conventional printing apparatus has a common initial setting value.

[0003]

However, it is inconvenient to reset the initial setting value of the conventional printing apparatus for the printing apparatus, because the initial setting value has to be set again. Since there is no history, A ₁ → B →
When the emulation of A ₂ and the printing apparatus is changed, the initial setting value changed in A ₁ is not reflected in A _{2 and} there is a problem that the usability is not good.

Further, in the case where the above-mentioned conventional printer has the same initial setting value, the function peculiar to the individual printing apparatus must be excluded from the initial setting value and cannot be registered as the initial setting value. There was a problem.

The present invention has been made in view of the above circumstances, and an object thereof is to eliminate the need to reset the initial setting value when switching the emulation function, and to include the function peculiar to an individual printer. The initial setting value can be registered by using this function, and there is a history of changing the initial setting value for each emulation. Even after switching the emulation of the printing device, it can be used last time and the changed value can be used as the initial setting value. To provide a printing device.

[0006]

In order to achieve the above-mentioned object, a printer according to the present invention comprises a printer main body which operates based on an emulation program, and an emulation program which is stored in the printer main body and is replaceably mounted on the printer main body. A plurality of types of program memory means and a non-volatile parameter memory means which is provided in the printing apparatus main body and stores parameters corresponding to each of the plurality of emulation programs. Initialization data for initializing the non-volatile parameter memory means is stored, and the non-volatile parameter memory means stores status data indicating whether or not the initialization data already exists,
When the initialization data already exists, writing of the emulation program from the program memory means is prohibited.

[0007]

When the initialization data for initializing the non-volatile parameter memory means for storing the parameters corresponding to each of the plurality of emulation programs already exists, writing of the emulation program from the program memory means is prohibited. Then, the parameters stored in advance become effective.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a printer according to the present invention, which is a printer body 2 which operates based on an emulation program.
have. In the printer main body 2, an emulation card (program memory means) 5 storing an emulation program for operating the printer main body 2 is inserted into a utility slot 4 provided at a predetermined position of the body 3, and the power is turned on. It operates by doing.

A plurality of types of emulation cards 5 are prepared, and by exchanging the emulation cards 5 variously, one printer main body 2 can operate a plurality of types of printers. ..
Further, the printer main body 2 receives the NVR during the reset operation (panel reset, INIT signal input) including power-on.
The initial setting value is read from AM (nonvolatile parameter memory means), and the value is used for operation. Therefore, in the printing apparatus 1, the NVRAM is divided and used for each type corresponding to each emulation. The NVRAM is provided in the printer body 2 and stores parameters corresponding to each of a plurality of emulation programs.

The emulation card 5 has an NVRA
Initialization data for initializing M is stored. Also,
The NVRAM stores status data indicating whether or not the initialization data already exists. And
When the initialization data already exists, writing of the emulation program from the emulation card 5 is prohibited.

The printer body 2 is provided with a keyboard (not shown) having a select switch for writing data in NVRAM, a data switch, a tact switch, a panel registration key and the like.

Data can be written in the NVRAM in the following cases.

Writing by DIP switch When writing by the select switch and the data switch, the data of the DIP switches 1 to 3 are rewritten.
Further, by turning on all the select switches and the data switches and pressing the tact switch, all of the peculiar printing device emulation use areas are rewritten to the factory shipment initial setting values. The bit correction value is set by reading the value from the DIP switch of the engine.

Writing by the panel registration key By pressing the panel registration key, the panel data 1 to 7, the short tear-off position data, and the cut sheet / continuous paper feed position data are written.

Also, the bit correction value is written when the vertical ruled line correction mode by test printing is operating.

Vertical ruled line correction factory setting mode for test printing When this mode is operating, a bit correction value converted from the value is written each time the DIP switch of the engine is changed.

Test print NVRAM all clear When this mode is selected in test print, all areas of NVRAM are set to 0.

There are the following four types of methods for initializing the printer.

Reset at power-on Reset by panel key Reset by INIT signal by parallel interface Reset by initialization command The above-mentioned initialization resets all states,
Then, and reset items are reduced, and is the lightest reset.

Reset performed only by (1) ・ Reset of external characters ・ Reset of downloaded characters (2) Reset commonly performed by, and not performed by ・ Clear print buffer / receive buffer ・ Initialize TOF and paper leading edge position ・Head H / P return ・ Default setting by DIP switch (3), reset commonly performed with, and not performed ・ Panel initialization (I / F select unchanged) (4), Reset commonly performed with, -Clear text buffer-Initialize item setting by control command After resetting, all are online.

The TOF position of continuous paper becomes the current line by the reset command (4).

The data flow is in the order of host computer → reception buffer → text buffer → print buffer → print. The receive buffer is a memory that stores the data sent from the host computer as it is. The text buffer is a memory that stores character data for one line, and when a print command is read from the receive buffer, the data is created in the print buffer. Further, the print buffer is a memory for storing data in which the character currently being printed (or to be printed next) is developed.

FIG. 2 is a flow chart showing the initialization control procedure in the printing apparatus 1 of the present invention. When the NVRAM is initialized, that is, when the emulation card 5 is changed or reset, the status data of the NVRAM is checked in step 1. By doing so, it is determined whether or not it has been initialized in the past. Step 2 if not initialized
Next, the default data in the emulation card 5 is loaded into the corresponding NVRAM. Next, after the initialized flag is turned on in step 3, this control operation ends.

On the other hand, if it is determined in step 1 described above that the initialization has been performed in the past, the processing operation is terminated without executing steps 2 and 3.

[0026]

As described above, according to the printing apparatus of the present invention,
If the initialization data for initializing the non-volatile parameter memory means for storing the parameters corresponding to each of the plurality of emulation programs already exists, writing of the emulation program from the program memory means is prohibited, and The stored parameters become effective.

Therefore, when switching the emulation function, it is not necessary to reset the initial setting value, and the initial setting value can be registered including the function peculiar to each printing apparatus, and the initial setting value can be changed for each emulation. Since there is a history of, the value used last time and changed can be used as the initial setting value even after switching the printing device emulation.

[Brief description of drawings]

FIG. 1 is a perspective view of a printer according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an initialization control procedure in the printing apparatus.

[Explanation of symbols]

1 printer 2 printer main body 5 emulation card (program memory means)

Claims (1)

[Claims] 1. A printer main body that operates based on an emulation program, a plurality of types of program memory means that stores the emulation program and is replaceably mounted on the printer main body, and the printer main body. And non-volatile parameter memory means for storing parameters corresponding to each of the plurality of emulation programs, wherein the program memory means stores initialization data for initializing the non-volatile parameter memory means, The non-volatile parameter memory means stores status data indicating whether or not the initialization data already exists. If the initialization data already exists, the emulation program is written from the program memory means. To ban A printing device characterized by the above.