JPH0577533A - Printer device - Google Patents

Abstract

PURPOSE:To make it possible to release of error in a printer without interrupting operation of a host device even at occurrence of the error by providing a means for receiving data with a speed slower than a data receive speed from an ordinary host device at occurrence of error where printing is impossible when a selection is done for not informing the host device of the occurrence of the error. CONSTITUTION:In a mode where occurrence of error is not be informed, a host device 31 is not informed of occurrence of error and a low speed receive flag is set. After a timer is started so as to generate an interruption with intervals necessary for receiving data from the host device 31 at a speed slower than that of an ordinary operation state, release of the error is waited for. Upon release of the error, the low speed receive flag is cleared and the timer is stopped so as to restore the normal operation state, and procedure returns to a main routine. Thus, even at occurrence of error where printing can not be continued, release of the error in the printer is possible without interrupting the operation of the host device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various printer devices such as laser printers.

[0002]

2. Description of the Related Art In a conventional printer device, an error such as running out of supply of paper and toner, maintenance time such as replacement of a photoconductor, paper jam, or the like that cannot continue printing while receiving print data from a host device. When the error occurs, the host device is notified of the error information. On the other hand, when the host device receives error information from the printer device, it automatically interrupts the transmission of print data to the printer device, and resumes the print data transmission when the error on the printer device side is released. It is possible.

[0003]

However, in the printer device as described above, when the print data transmission from the host device is resumed, there is no problem if the print data from the interrupted point is transmitted. In some cases, data that has already been printed when the error occurs will be printed again because the data containing the print data that was interrupted may be sent again from the beginning of the file. There is a problem that not only the paper that has been printed out and the time spent up to that point are wasted, but also extra work and time are required due to resending the print data.

Further, when the host device and the printer are installed far apart from each other, it is very inconvenient because it is delayed to notice that the printing is interrupted in the middle of the job. This invention was made in view of the above points,
Even if an error that cannot continue printing occurs, the error status of the printer device can be released without interrupting the operation of the host device, and a supply shortage occurs during printing or the maintenance period comes. The purpose is to be able to avoid such things.

[0005]

In order to achieve the above object, the present invention provides means for forming print image data in accordance with print data and a control command received from a host device, and print image data formed by the means. In a printer device having means for transferring to the printer engine to form a print image on the recording medium and means for notifying the host device of the error occurrence when the error that printing cannot be continued occurs, If the means for notifying the host device of the error occurrence is selected by the means for notifying the error occurrence and the selection not for notifying the host device of the error occurrence by the means, an error that printing cannot be continued occurs. When it occurs, data is sent from the host device under normal operating conditions. A means for receiving data from the host device at a speed slower than the receiving speed and a means for receiving data from the host device at a speed in a normal operation state when the error state is released are provided. ..

Further, an interface circuit capable of bidirectional communication, means for detecting each information such as operating status, supply status or maintenance status, means for storing information detected by the means, and means for storing the information. The stored information is compared with the information of the print file sent from the host device via the interface circuit, the comparison result, for example, it is determined whether all the print files can be printed, and the print file is saved. If it is determined that all files cannot be printed due to a supply shortage or maintenance time during printing, a printer device provided with means for transmitting the information to the host device via the interface circuit is also provided. provide.

Even if it is determined that all the files cannot be printed due to a supply shortage or the maintenance period when the files are being printed, a means for instructing to continue the printing by ignoring the information is provided. It is good to provide. Further, it is preferable to provide a means for arbitrarily designating the judgment item to be ignored.

[0008]

According to the printer device of claim 1, when the host device is selected not to notify the occurrence of an error and an error occurs in which printing cannot be continued, data is sent from the host device in a normal operation state. Receive data from the host device at a slower rate than it receives,
When the error state is released, data from the host device is received at the speed in the normal operating state. Therefore, even when an error that makes it impossible to continue printing occurs, the operation of the host device is not interrupted. It is possible to cancel the error state of.

According to the printer device of claim 2,
Each information such as operating status, supply status or maintenance status is detected and stored, and the stored information and the print file information sent from the host device through the interface circuit capable of bidirectional communication are stored. The result of the comparison is compared, for example, it is determined whether or not all the print files can be printed, and it is determined that all the files cannot be printed because a supply shortage occurs during the printing of the print file or the maintenance time comes. In that case, the information is sent to the host device via the interface circuit to notify the user, so that it is possible to avoid the occurrence of supply shortage during the printing or the arrival of maintenance time.

Even if it is determined that all the files cannot be printed due to a supply shortage or the maintenance time has come during the printing of the files, it is possible to give an instruction to ignore the information and continue the printing. By doing so, even if a printable error such as toner shortage occurs, it is possible to ignore it and continue printing, which is convenient when you want the print result quickly even if the image quality slightly deteriorates such as draft print. Is.

Further, by making it possible to arbitrarily specify the above-mentioned judgment items to be ignored, when a plurality of consumables need to be replaced when a supply shortage occurs or when the maintenance time comes, all the consumables are to be replaced. Even if you did not have
If the consumable item can be printed even if the image quality is deteriorated, the consumable item can be designated as a judgment item to be ignored to continue printing.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 2 is a schematic configuration diagram showing an internal mechanism of a laser printer which is an embodiment of the present invention. In this laser printer, a main body 1 is detachably provided with a paper feed tray 2, and a first paper discharge stacker 3 is provided at an upper portion and a second paper discharge stacker 4 is provided at a rear portion.

Of the two paper output stackers 3 and 4, the first paper output stacker 3 is usually selected, but the first paper output stacker 3 is selected in a special case such as the case of using an easily curled paper such as an envelope or a postcard. 2 The paper output stacker 4 is selected. The paper discharge to the two paper discharge stackers can be switched by the switching claw 5.

Further, in the main body 1, a photosensitive drum 6, a charging section 7, an optical writing section 8, a developing section 9, a transfer section 10, a fixing section 11, which constitute an image forming section of a printer engine, and a paper feeding unit. A sheet feeding section including rollers 12 and a pair of registration rollers 13 and a sheet discharging section 14 including a conveying roller and a paper guide plate.
And are provided. Also, at the top of this printer,
A printer controller (printer control device) 3 described later
0 and the board of the engine driver 15 are mounted.

When a print sequence is started by a command from the host device described later, the paper feed roller 1
The sheet feeding is started from the sheet feeding tray 2 by 2 and temporarily stopped at the position where the leading edge of the sheet is clamped by the pair of registration rollers 13. On the other hand, the photoconductor drum 6 rotates in the direction of the arrow, and the surface charged by the charging unit 7 is modulated by the optical writing unit 8 according to print image data (video data) from the printer controller 30 described later. The laser beam is irradiated while performing main scanning in the drum axis direction for exposure,
Form a latent image.

The developing unit 9 develops it with toner, and the transfer unit 10 transfers it to a sheet fed by the registration roller pair 13 at a predetermined timing, and then the sheet fixed with heat by the fixing unit 11 2 The paper is discharged to the first paper discharge stacker 4 or the first paper discharge stacker 3 via the paper discharge transport unit 14.

FIG. 3 is a perspective view showing an example of the appearance of this laser printer. In this laser printer body 1,
A font cartridge insertion opening 17 and an emulation card insertion opening 18 are provided in the inner portion of the right side surface of the cover 16A of the upper unit 1A, and an operation panel 19 is attached to the front surface thereof. An operation key group 19b and the like are provided.

Further, on the left side of the front surface of the cover 16B of the lower unit 1B, there is provided a sheet discharge switching knob 20 for rotating the switching claw 5 shown in FIG. 2, and the sheet discharge switching knob 20 is rotated to switch the sheet. The direction of the pawl 5 is switched, and accordingly, the first paper output stacker 3 or the second paper output stacker 4 (see FIG. 2).
The print paper is ejected to one of (see).

The font cartridge insertion port 17
Is a RAM that stores optional fonts or R
The emulation card insertion opening 18 is an insertion opening for inserting a font cartridge having an OM or the like.
An insertion port for inserting an emulation card having a ROM storing an emulation program for matching between a host device to be connected and this printer.

These upper unit 1A and lower unit 1B
And are hinge-coupled to each other on the back side, and are fixedly held to each other by a lock mechanism on the front side, and the lock mechanism is released by pushing down the lock lever knob 21 protruding from the front surface of the cover 16A, and the upper unit 1A is moved to the lower unit. It can be rotated with respect to 1B and opened to facilitate maintenance work and component replacement.

FIG. 4 is a block diagram showing a configuration example of a printer controller of this laser printer. The printer controller 30 of the laser printer is a host interface 32 for connecting to a host device 31 as an interface circuit, and a panel interface 34 for connecting to a panel device 33 including the operation panel 19 and its control section shown in FIG. , A bus buffer 36 for connecting to the option memory 35, an engine interface 38 for connecting to the printer engine 37, a central processing unit (hereinafter abbreviated as "CPU") 39, a program RO
An M40, a font ROM 41, a RAM 42, and a bit map memory 43 are connected to each other by a bus line 44 including an address bus, a control bus, and a data bus.

The host interface 32 is an interface circuit which is connected to a host device 31 such as an office computer, a personal computer, a word processor, etc., and which sends and receives various data such as print data, control commands and status information to and from the host device 31. Yes, various serial interfaces or parallel interfaces are selected according to the host device to be connected.

The panel interface 34 transmits display control data with the panel device 33 and receives each instruction information. The bus buffer 36 controls transmission / reception of each data with the optional memory 35 such as a font cartridge or an emulation card. The engine interface 38 converts the print image data held in the bitmap memory 43 into the printer engine 37.
And transfer data such as commands and status information to and from the printer engine 37.

The CPU 39 is a general-purpose 16- or 32-bit central processing unit and controls the overall control of the printer controller 30. Program ROM 40 is CPU3
Various programs and fixed data for operating 9
The font ROM 41 is a read-only memory that stores resident font data.

The RAM 42 is a readable / writable memory and is based on a working memory of the CPU 39, an input buffer for temporarily storing data transmitted from the host device 31, print data temporarily stored in the input buffer, and a control command. It is used as a page buffer for storing page data to be created, a font file for storing download fonts received from the host device 31, and the like.

The bit map memory 43 is a memory for storing and retaining print image data created in page units by data on the page buffer of the RAM 42, font data and the like. The printer engine 37 is shown in FIG.
The engine mechanism unit including the image forming unit including the optical writing unit 8 shown in FIG. 2 and the engine driver that controls the drive of the engine mechanism unit according to the print image data and the command sent from the printer controller 30. ing.

Now, in order to switch the operation mode of this laser printer, there is a method of switching by the operation of the operator using the operation panel 19 shown in FIG. 3 and a method of sending a control command from the host device 31 shown in FIG. However, in any case, a variable (flag) indicating the operation mode is provided on the RAM 42, and the CPU 39 refers to this variable,
By operating according to the value, various operation modes are realized.

Similarly, a variable (a non-notification flag) indicating whether or not to notify the host device 31 of the occurrence of an error when an error that cannot continue printing is provided in the RAM 42, and the CPU 39 refers to this variable. By operating according to the value, it is possible to switch the operation mode when an error occurs.

FIG. 1 is a flow chart showing the processing by the CPU 39 when an error occurs according to the present invention. This routine starts when called from a main routine (not shown), and first checks whether or not the non-notification mode (whether or not the non-notification flag is set). To notify the occurrence of an error and wait for the error condition to be released. And
When the error state is released, the host device 31 is notified that the error is released and the process returns to the main routine.

On the other hand, in the non-notification mode, the host device 31 is not notified of the occurrence of an error, the low-speed reception flag is set, and the data from the host device 31 is received at a speed slower than the normal operating state. Wait for the error condition to be cleared after starting the timer so that an interrupt is generated at the necessary interval. Then, when the error state is released, the low speed reception flag is cleared, the timer is stopped and the normal operation state is restored, and then the process returns to the main routine.

On the other hand, the reception of data from the host device 21 utilizes an interrupt, and the data reception routine shown in FIG. 5 is activated by an interrupt due to the reception of data from the host device 31. When the data reception routine is started, first, the interruption due to the data reception is prohibited. In addition,
The received data is read by the CPU 39 and R
It is stored in the input buffer (temporary buffer) secured in the AM 42.

After that, it is judged whether or not the low-speed reception mode is set (whether or not the low-speed reception flag is set). If the low-speed reception mode is set, the interrupt due to the data reception remains disabled. After the interruption by reception is permitted, the data reception routine is terminated and the process returns to the main routine.

In the low-speed reception mode, the timer is activated, and a timer interrupt is generated at a constant time interval to activate the timer routine shown in FIG. 6 to permit the interrupt due to data reception. Therefore, during the low-speed reception mode, data can be received from the host device 31 at regular intervals determined by the timer.

As described above, according to this embodiment, when the mode in which the host device 31 is not notified of the occurrence of an error is selected and an error that cannot continue printing occurs, the host device is in a normal operating state. When data is received from the host device 31 at a speed slower than the speed at which data is received from the host device 31, and when the error state is released, data is received from the host device 31 at the speed in the normal operating state, so printing cannot continue. Even when such an error occurs, it is possible to cancel the error state of the printer device without interrupting the operation of the host device.

FIG. 7 is a schematic block diagram showing the internal mechanism of a laser printer which is another embodiment of the present invention. The laser printer 51 is composed of a main body 52, and a double-sided unit 53 and a job separator 54 which are attachable to and detachable from the main body 52.

When the laser printer main body 52 starts the printing operation based on the information given from the host device such as the word processor or the computer, the main body motor (not shown) rotationally drives the photosensitive drum 55 in the direction of the arrow, and at that time, the charging charger. The surface of the photosensitive drum 55 is uniformly charged by 56, and the laser writing unit 57
The laser beam modulated in accordance with the print image data is irradiated while exposing in the axial direction of the photoconductor drum 55 while performing main scanning to form an electrostatic latent image on the photoconductor drum 55. The developing roller 59 of the developing unit 58 attaches toner thereto to develop the electrostatic latent image into a visible image.

On the other hand, from the upper paper feed cassette 60 or the lower paper feed cassette 61 to the arrow A by the paper feed roller 62 or the like.
The sheet 63 is fed in the direction, and stands by at a position held by the registration roller pair 64, and the sheet is fed to the image transfer portion by the registration roller pair 64 at a predetermined timing and is exposed by the action of the transfer charger 65. Body drum 5
The toner image (visible image) on No. 5 is transferred onto the sheet.

After that, the sheet is conveyed to a fixing device 66 in which a pair of rollers 66a are in pressure contact with each other, is heated and fixed, and after passing a sheet discharge roller pair 67, is discharged in a direction of an arrow B and is discharged to a job separator 54. It is stocked on the discharge tray 69 by the pair of separate rollers 68, or is fed to the transport system 71 of the duplex unit 53 by switching the duplex inlet guide 70.

The residual toner on the photosensitive drum 55 after the visible image transfer is removed by the cleaning blade 73 of the cleaning unit 72 to prepare for the next image formation, and the toner removed by the cleaning blade 73 is recovered as toner. It is collected in the tank 74.

The sheet fed into the conveying system 71 of the double-sided unit 53 is sequentially fed through the three pairs of double-sided conveying rollers 75, 76, 77 to the switchback system 78, and the trailing end of the sheet has its reverse guide 79. Pause when passing. After that, the reversing guide 79 is switched, and the pair of reversing rollers 80 is rotated in the reverse direction, so that the stopped sheet is reversed in the traveling direction and is re-fed to the image transfer portion of the printer body 52.

Then, the toner image is fixed on the sheet through the same process as described above. At this time, the surface of the paper opposite to that when it is fed from the paper feed cassette is the photosensitive drum 5
Since it contacts with 5, double-sided printing is performed. The double-sided printed sheet passes through the fixing device 66, and then is discharged to the discharge tray 69 by switching the double-sided entrance guide 70.

Note that all of 81 to 83 are sensors for paper detection, which are trigger sources for timing of paper transportation. A printer controller 90 and an engine driver 8 which will be described later are provided below the printer body 52.
4 substrates are provided.

FIG. 8 is a block diagram showing a configuration example of a printer controller of this laser printer. The printer controller 90 includes a CPU 91 and a program ROM 9
2, font ROM93, RAM94, NVRAM9
5, IC card 96 and engine interface 97,
Panel interface 98, disk interface 9
9. Each interface circuit of the host interface 100.

The CPU 91 is a central processing unit that controls the printer controller 90 as a whole according to a program in the program ROM 92, a mode instruction from the panel device 101, and a command from the host device 102, which is an upper device of the printer. The program ROM 92 is a read-only memory that stores the control program of the printer controller 90, and the font ROM 93 is a read-only memory that stores font pattern data and the like.
It is a memory.

The RAM 94 is a work memory of the CPU 91, an input buffer for temporarily storing input data, a page buffer for storing page data created based on data temporarily stored in the input buffer, data on the page buffer and font data, etc. The random access memory is used for a bitmap buffer for temporarily storing print image data created by, a font file for storing fonts downloaded from the host device 102, and the like.

The NVRAM 95 is a non-volatile memory for storing the contents of the mode instruction from the panel device 101, and the IC card 96 is a removable memory card used for supplying font data and programs from the outside. Is. The engine interface 97 is an interface circuit for communicating commands and statuses and print image data with the engine 103 that actually prints. The panel interface 98 is for notifying the user of the current printer status and giving a mode instruction. An interface circuit that communicates commands and statuses with the panel device 101 that operates.

The disk interface 99 is an interface circuit for communicating with the disk device 104. The host interface 100 is a host device 10
2 is an interface circuit that communicates with the communication terminal 2, and is usually a Centro I / F or RS232C. Disk device 10
An external storage device 4 stores various data such as font data, programs, print data,
It is a floppy disk device (FDD), a hard disk device (HDD), or the like.

Next, a method of detecting supply information in the laser printer will be described. Errors that cause printing to be interrupted include running out of paper such as running out of paper, running out of toner, or the life of the photoconductor. To detect the number of paper sheets (remaining number of paper sheets) related to this, use a counter on the printer. For example, when the user sets paper in the paper feed cassette, the set number of sheets is set in a counter from a panel device or the like, and the printer side subtracts the value of the counter each time printing is performed, thereby reducing the number of sheets. There is a method of detecting. Therefore, when the count value becomes "0", it is possible to detect the paper out. The paper shortage can also be detected by arranging a sensor on the paper feed cassette.

As a method of detecting the number of printable sheets with respect to the life of the photoconductor, a counter is provided in the printer, the value of the counter is cleared to "0" when the photoconductor is set, and then the number of prints is counted. There is a method for detecting the number of printable sheets by comparing the count value and the number of life sheets of the photoconductor. As a method of detecting the number of printable sheets with respect to the remaining amount of toner, a counter is provided in the printer and the average amount of toner printed on one sheet of paper is set in advance, and the value and the capacity of the toner bottle are set. There is a method of comparing and detecting the number of printable sheets.

FIG. 9 is a flow chart showing the processing according to the present invention by the CPU 91 in this embodiment. After creating the print file, the host device 102 sends information such as the number of files to be printed to the printer controller 90 before actually sending the print file and starting printing.

CPU 91 of printer controller 90
From the host device 102 to the host interface 100
When the information of the print file is received via, the supply information such as the number of sheets of paper, the number of printable sheets with respect to the life of the photosensitive member, and the number of printable sheets with respect to the remaining amount of toner are detected by using the above-described detection method as shown in FIG. Is detected and stored in the RAM 94, and then the supply information and the information (number of sheets, etc.) of the print file received from the host device 102 are compared to determine whether or not all the print files can be printed. ..

If it is determined that all print files can be printed, the host interface 1
If the printer ready information is transmitted to the host device 102 via 00, and it is determined that all the files cannot be printed because of a supply shortage or the maintenance time has come during the printing of the print file,
The error information is transmitted to the host device 102.

Upon receiving the printer ready information from the printer controller 90, the host device 102 displays on the display device that printing is possible, and upon receiving the error information from the printer controller 90, displays the contents on the display device. To warn the user.

FIG. 10 is a flow chart showing an example of a subroutine of a process of comparing the supply information and the print file information of FIG. Note that the print file information is limited to the number of sheets here. First, the number of printable sheets n with respect to the life of the photoconductor is compared with the number of print files N. If n ≧ N, the life of the photoconductor is reached during printing if n <N (maintenance time comes. After setting the flag indicating "Yes" to "1",
A comparison is made between the printable number n'of the remaining amount of toner and the number N of print files.

If n'≥N, then n '<
If N, a flag indicating that toner shortage occurs during printing is set to "1", and then the number of sheets n "is compared with the number N of print files. If <N, a flag indicating that the paper is out during printing is set to "1".

Therefore, by referring to the above flags, it can be determined that all the print files can be printed if all of the flags are "0", and "1" is set even for one of the flags. In this case, it is possible to determine that all the files cannot be printed because a supply shortage occurs during the printing of the print file or the maintenance time comes.

As described above, according to this embodiment, supply information (information such as operating status, supply status or maintenance status) is detected and stored, and the stored information and the host device 102 to the host interface 100.
Because the information of the print file sent through is compared to determine whether or not all the print files can be printed, a supply shortage occurs during the printing of the print file or the maintenance time comes. If it is determined that all the files cannot be printed, the information is transmitted to the host device 102 via the host interface 100 to notify the user, so that a supply shortage during the printing process and the maintenance period can be avoided. It is possible that the print file is not interrupted after it has started printing.

Even if it is determined that all the files cannot be printed because the supply shortage occurs during the printing of the print file or the maintenance period comes, the error cancel command from the host device 102 or the key operation on the panel device 101 is performed. Thus, if it is possible to instruct to ignore the information and continue printing, it is possible to ignore the information and continue printing even if a printable error such as a toner shortage occurs. This is convenient when a print result is desired quickly even if the image quality such as a draft print is slightly deteriorated.

Further, it is preferable that the judgment item to be ignored can be arbitrarily designated by a command from the host device 102 or a key operation on the panel device 101. In other words, if you specify to ignore the judgment items for errors (such as toner shortage and photoconductor replacement time) that can be printed but the image quality deteriorates, printing will continue even if that error occurs. The print result can be obtained.

Further, even when a supply shortage occurs during the printing of the print file, when an operator wants to obtain a print result quickly, the host device 102 sends an error cancel command or operates a key on the panel device 101. You can cancel the error and continue printing. When two or more errors occur, for example, when the toner shortage occurs and the photoconductor replacement time comes, the user replenishes the toner even when there is toner reserve but no photoconductor reserve. After that, if there is no problem in printing, it is possible to continue printing by sending an error cancel command from the host device 102 or canceling the error by operating a key on the panel device 101.

Although the embodiment in which the present invention is applied to the laser printer has been described above, the present invention is not limited to this, and can be applied to other printer devices such as an LED printer, a liquid crystal shutter printer, and a digital copying machine. Any device that can be connected to the host device of is applicable.

[0062]

As described above, according to the present invention, even when an error that cannot continue printing occurs, it is possible to cancel the error state of the printer device without interrupting the operation of the host device. .. Further, it is possible to prevent the supply of print from being interrupted by avoiding a supply shortage during the printing or a maintenance period.

[Brief description of drawings]

FIG. 1 is a flow chart showing a process when an error occurs according to the present invention by a CPU 39 of FIG.

FIG. 2 is a schematic configuration diagram showing an internal mechanism of a laser printer which is an embodiment of the present invention.

FIG. 3 is a perspective view showing an example of the same appearance.

FIG. 4 is a block diagram showing a configuration example of the printer controller.

FIG. 5 is a flowchart showing a data reception routine of the CPU 39 of the same.

FIG. 6 is a flowchart showing a timer routine by the CPU 39.

FIG. 7 is a schematic configuration diagram showing an internal mechanism of a laser printer which is another embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration example of the printer controller.

FIG. 9 is a flowchart showing the processing according to the present invention by the CPU 91.

FIG. 10 is a flowchart showing an example of a subroutine of a comparison process of the supply information and print file information.

[Explanation of symbols]

30, 90 Printer controller 31, 102
Host device 32 Host interface 33, 101
Panel device 37 Printer engine 39, 91 C
PU 40,92 Program ROM 41,93 Font ROM 42,94 RAM 43 Bitmap memory 95 NVRAM 103 Engine

Claims (5)

[Claims] 1. A means for forming print image data according to print data and a control command received from a host device, and the print image data formed by the means is transferred to a printer engine to form a print image on a recording medium. A printer device having means for notifying an error occurrence to the host device when an error that cannot continue printing occurs, and an error occurrence to the host device by means for notifying the error occurrence when an error that cannot continue printing occurs And a means for selecting whether to notify the occurrence of an error to the host device, and when an error that makes it impossible to continue printing occurs when the host device is not notified of the error occurrence The phone is slower than it is receiving data from the device. A printer device comprising: means for receiving data from a storage device; and means for receiving data from the host device at a speed in a normal operation state when the error state is released. 2. An interface circuit capable of bidirectional communication, a means for detecting each information such as an operating state, a supply state or a maintenance state, a means for storing the information detected by the means, and the means. Means for comparing the stored information with the information of the print file sent from the host device via the interface circuit and transmitting the comparison result to the host device via the interface circuit are provided. Printer device. 3. An interface circuit capable of bidirectional communication, a means for detecting each information such as an operating state, a supply state or a maintenance state, a means for storing the information detected by the means, and the means. By comparing the stored information with the information of the print file sent from the host device via the interface circuit, it is determined whether or not all the print files can be printed, and a supply is performed during the printing of the print file. When it is determined that all files cannot be printed due to shortage or due to the maintenance period, a printer for transmitting the information to the host device via the interface circuit is provided. .. 4. The printer device according to claim 3,
Even if it is determined that all files cannot be printed due to supply shortage or maintenance time during the printing of the file, a means for instructing to ignore the information and continue printing is provided. Printer device. 5. The printer device according to claim 4,
A printer apparatus comprising means for arbitrarily designating a judgment item to be ignored.