JPS6274677A - Printer - Google Patents

Abstract

PURPOSE:To obtain a printer which can immediately confirm the altered content of printing conditions due to an external unit by printing a message in response to the state of a set switch when a function select switch is operated. CONSTITUTION:A CPU 1 has a set switch 8 for setting printing conditions and an operating mode, and an operation switch 12 having a line feeding switch, a print starting position start switch and a function select switch for designating to print the set state of the printing conditions. Set state reading means 101 of the CPU 1 reads out the switch state of the switch 8 when the function select switch of the switch 12 operates to form a message corresponding to the state, thereby storing it in the set state memory 18m of a RAM 18. Message printing means 102 prints the message of each switch stored in the means 101. Thus, when the alteration of the printing conditions is set by the command of a host computer, the set state can be immediately confirmed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a printing device having a function of changing printing conditions such as a printing start position in response to a command from an external device.

[Conventional technology]

Conventionally, this type of printing apparatus receives print data transmitted from an external device, such as a host computer, and prints the data under preset printing conditions. The printing conditions include the printing start position on the printing paper, the printing length of one line, the line feed behavior, the length of one page, the left margin, the right margin, the pitch, and the like.

Incidentally, these printing conditions can be changed by commands from the host computer and by a setting switch section provided on the main body of the printing apparatus.

In other words, when changing using the host computer, there is a memory that reads and stores the 0NSOFF state of each switch in the setting switch section, and the change is executed by changing the contents of this memory. The settings can be changed by the operator by operating each switch of the setting switch section provided on the main body of the printer.

[Problem that the invention seeks to solve]

However, when a change is made by the host computer, the configuration is not such that the change can be immediately confirmed, so the change cannot be confirmed and it is unclear whether the change was made correctly. Therefore, problems such as failures may occur during printing operations.

SUMMARY OF THE INVENTION Therefore, in order to solve the above-mentioned problems, it is an object of the present invention to provide a printing device that can immediately check the contents of the change when printing conditions are changed and set by an external device.

[Means for solving problems]

The present invention provides a setting switch section having a plurality of switches for setting printing conditions, a function select switch for specifying printing of the setting state of the setting switch section, and a function select switch for specifying printing of the setting state of the setting switch section. The above-mentioned object is provided with a setting state reading means for reading the state of each switch and creating and storing a message according to the state, and a message printing means for printing a message for each switch stored by the setting state reading means. This is a printing device that aims to achieve the following.

[Effect]

By providing each of the above means, the present invention reads the status of each switch in the setting switch section when the function select switch is operated, stores a message corresponding to the status, and further prints out this message for immediate confirmation. It is a printing device that can be used.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a printing device. In the same figure, 1 is C
PU (central processing unit), and this CPU 1 has a data bus 2, an address bus 3, and a control bus 4.
The following items are connected via: That is,
An interface transmission circuit 6 for exchanging print data with the host computer 5, a timer circuit 7, an input port 9 for reading the switch states of the setting switch section 8 for setting print conditions and operation modes, and an input port 9 for the print head 10. Head control circuit 11, change operation switch (LF switch)
, a print start position start switch (TOF switch), a function select switch that specifies printing of the setting state of printing conditions, etc. Input port 1 that reads the state of the operation switch 12.
3. Furthermore, a feeder control circuit 15 of the feeder 14 for controlling the feeding of printing paper, a carriage control circuit 17 of the carriage 16 on which the print head 10 is mounted, and RA.
M (random access memory) 18, ROM (
read-only memory) 19 is connected.

Now, the CPUI is equipped with a setting state reading means 102 and a message printing means 102 as shown in FIG. The setting state reading means 101 reads the state of each switch in the setting switch section 8 when the function select switch in the operation switch 12 is operated, creates a message according to the state, and stores the message in the setting state memory 1 in the RAM 18.
8m, and the message printing means 102 has the function of printing a message for each switch stored by the setting state reading means 101.

Further, the setting switch section 8 and its input port 9 have a configuration shown in FIG. 3. That is, the setting switch section 8 has setting switches 51 to S8 for each item of setting conditions.
are provided, and each of these setting switches 51 to S8 is connected to each input terminal A1-88 of the input port 9, respectively. Then, each setting switch 51 to s8 and input terminal A1
A resistor array 20 is connected to each line connecting A8 to A8, and for example, when a setting switch is closed, a low level "1" is connected.
” signal is applied to the input terminal of input port 9. Note that Do-D7 of the input port 9 is an output terminal.

Next, the operation of the apparatus configured as described above will be explained with reference to the setting state printing flow chart shown in FIGS. 4 and 5. When the power is turned on, initial processing is executed in step stl.

This initial processing is carried out by each setting switch 81 of the setting switch section 8.
The ON/OFF state of ~s8 is read and stored in the setting state memory 18m. For example, this is as shown in FIG. 6, and in this case, the setting switch s1 is in the OFF state,
s2 is in an OFF state, S3 is in an ON state, and so on. Next, in step st2, it is determined whether the select switch in the operation switch 12 has been operated and pressed, and if it has been pressed, the process moves to steps st3 and st4, and the DC3
It is determined whether it is a code (deselected; transmission stopped state) or a DCI code (selected; transmitted state), and if it is in the selected state, execution proceeds to the select normal routine.

In other words, this select normal routine takes in print data transmitted from the host computer 5 through the interface transmission circuit 6, and stores this print data in the RAM 1g.
Temporarily write to. Then, this print data is read out and the carriage control circuit 17 and print head control circuit 11
to print on the printing paper. However, if it is not in the transmission state, the interface transmission circuit 6 is switched to step st.
5, it is turned off.

Now, if the select switch is not pressed, it is further determined in steps st8 and st7 whether the LF switch and TOF switch in the operation switch 12 are pressed,
If it has not been pressed, it is determined in step st8 whether the function select switch has been pressed. According to this judgment, if the function select switch is pressed, the setting state reading means 101 of the CPUI operates to read the state of each setting switch of the setting switch section 8.

First, in step st9, the setting switch s1 is turned on.
state or OFF state. This is determined from the data of each state previously stored in the setting state memory 18m.
” level is the OFF state, and “0” level is the OFF state.
It is in the N state. If it is determined that it is in the ON state, the process moves to step 5tLo, and the message "1-DCl, DC31GNORE" corresponding to the ON state is stored in the RAM 18, which functions as a buffer memory.

If it is in the OFF state, the process moves to step 5tll and the data of the message "1-DCI, DC3VALID" is stored in the RAM 18.In addition, when storing it in the RAM 1g, as shown in FIG. 7, print start command CR, line feed command The LF data is also stored.Then, the process moves to step 5t12, where the current data stored in the RAM 18 is read out and printed, and after this printing is completed, a new movement is performed.

Next, in step 5t14, the setting switch s2 is turned on.
state or OFF state. Therefore, if it is at the "1" level, it is in the OFF state a, and if it is at the rOJ level, it is in the ON state. Then, if it is in the ON state based on this judgment, the process moves to step 5t15 and a message "2" corresponding to the ON state is sent.
-BUF-FULLF" is stored in the RAM 18. If it is in the OFF state, the process moves to step s, tlB and the message "2-BUF-FUL LF N
Store the data “O” in RAMII!!.
When storing in AM18, the data of print start command CR1 and line feed command LF are also stored as shown in FIG. 7, as before. Then, the process moves to step 5t17 and RAM1
Read the current data stored in g and print it,
After this printing is completed, the paper feed is activated.

Then, sequentially set the setting switches s3, s4...s7 to O.
It reads the N state and OFF state and stores and prints a message according to the state. In this way step 5t
When the number reaches 19, the setting switch s8 is turned on or off.
If it is ON according to this judgment, the process moves to step 5t20 and a message corresponding to the ON state is sent.
8-TOF-LENG T H12inch=data is stored in the RAM 18. If it is in the OFF state, the process moves to step 5t21 and the message “8-TOF
LENC; THflinch' data in RAM 1g
memorize to. Note that when storing in the RAM 1g, the data of the print start command CR1 and the line feed command LF are also stored.

Then, the process moves to step 5t22, where the current data stored in the RAM 1g is read out and printed, and after this printing is completed, a change operation is performed and the execution of the deselect normal routine is started. The printed result is shown in FIG.

In this way, in the above embodiment, when the function select switch is operated, the state of each setting switch 51 to s8 of the setting switch section 8 is read, a message corresponding to the state is stored, and this message is printed. Therefore, the state of the printing conditions can be reliably known, and when a change is made in response to a command from the host computer 5, the setting state can be immediately confirmed.

In addition, if the printed message when the setting switches 51 to S8 are in the ON state and the printed message when they are in the OFF state are the same, it is possible that the setting switches 51 to s8 are malfunctioning, or the input port 9 or its line is malfunctioning or defective. It becomes easy to distinguish between Therefore, there is no need to judge an abnormality during the printing operation of print data from the host computer.

Note that the present invention is not limited to the above-mentioned embodiment, and can be modified without departing from the spirit thereof.

〔Effect of the invention〕

As described in detail above, according to the present invention, it is possible to provide a printing device in which when printing conditions are changed and set by an external device, the contents of the change can be immediately confirmed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the printing device according to the present invention, FIG. 2 is a functional block diagram of the device of the present invention, and FIG. 3 is a specific configuration diagram of the setting switch section of the device of the present invention. 4 and 5 are setting state printing flowcharts of the apparatus of the present invention, FIG. 6 is a schematic diagram of data read in the setting state of printing conditions, FIG. 7 is a diagram showing each message of the setting state, and FIG. 8 is a diagram showing printing of each message in a setting state. 1... CPU, 101... Setting state reading means, 10
2...Message printing means, 2...Data bus, 3
... Address bus, 4... Control bus, 5.
...Host computer, 6.Interface transmission circuit, 8.Setting switch section, 51-S8..Setting switch, 20..Resistance array, 9..Input port, 12..Operation switch. , 13...input port, 1
8...RAM. 19...ROM0 Applicant's agent Patent attorney Takehiko Suzue Figure 3 Figure 4 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] A printing device in which printing conditions can be changed by commands from an external device includes a setting switch section having a plurality of switches for setting the printing conditions, a function select switch for specifying printing of the setting state of the setting switch section, and a setting state reading means for reading each switch state of the setting switch section when the function select switch is operated and creating and storing a message according to the state; and a setting state reading means for each switch stored by the setting state reading means. A printing device comprising: a message printing means for printing the message.