JP5369532B2 - Printing apparatus and printing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing apparatus and system particularly, correctly recording and storing utilization conditions as log information, and correctly managing the utilization conditions for every predetermined period with respect to the printing apparatus and printing system which records and stores the utilization conditions of the apparatus as log information. <P>SOLUTION: The printing apparatus performing printing treatment in accordance with printing data comprises: a term initial day setting means setting the term initial day; a setting means wherein the month including the term initial day is defined as the term initial month, and the month after 12 months from the term initial month is set as the term end month; and a calculation means wherein the monthly consumption of each month is calculated on the apparatus using day in which the power source input to the apparatus is performed. This calculation means is composed in such a manner that, when the apparatus using day is the initial apparatus power source input day of each month, the calculation of the monthly consumption of the former month is performed, and, when the record of the monthly consumption of the former month is not present, the calculation of the monthly consumption till the former month is performed based on the information of the month in which the record of the newest monthly consumption before the apparatus using day exists. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a printing apparatus that records and stores the usage status of an apparatus as log information, and a printing system that uses the printing apparatus.

In a printing apparatus such as a printer apparatus, a print management system that records and stores the usage status of the apparatus as log information and manages the usage status every predetermined period has been proposed. For example, Patent Document 1 is an invention of such a print management system, and provides a system that can aggregate and output log data indicating the execution status of a print job when a plurality of client apparatuses perform printing. For example, print job history information in a printer device is output in response to a user request, and the usage status of the printer device can be ascertained, thereby improving work efficiency of the user.
JP-A-11-110156

However, in the conventional system, when the log data is created, the printing apparatus is not necessarily operated corresponding to the management period. For example, when the pause period is long, the log data is correctly recorded. I can't do it.
In addition, in order to create log data, it is necessary to perform complicated operations such as the need to turn on the printing apparatus when a predetermined period has elapsed.

  Accordingly, the present invention has been made in view of the above problems, and a printing apparatus capable of accurately recording and storing a usage status of a printing apparatus as log information and correctly managing the usage status every predetermined period, and the printing apparatus. A printing system to be used is provided.

According to the first aspect of the present invention, in the printing apparatus that involves consumption when performing print processing according to the print data,
A clock means for recognizing the date,
Initial period setting means for setting the initial period;
A calculation means for calculating a monthly consumption amount of what is consumed in a month including a device use day when power is turned on to the printing device;
Storage means for storing the monthly consumption of the result calculated by the calculation means,
The calculation means calculates the device usage date from the current total consumption amount when the device usage date is the first power-on date in the month without calculating the monthly consumption amount for each printing process. The value obtained by subtracting the total consumption of the month with the previous most recent monthly consumption record is calculated only once as the monthly consumption of the next month of the month with the most recent monthly consumption record, and This can be achieved by providing a printing device that stores in the storage means.

According to the third invention, the first setting means for setting the month including the first day of the period as the first month and setting the month 12 months after the first month as the last month;
A printing device that calculates the annual consumption of the previous year when the year including the date of use of the device is the current year, the previous year is the previous year, and the previous month is the last month of the previous year. Can be achieved by providing.
According to a fourth aspect of the present invention, each monthly consumption from the month following the month with the most recent monthly consumption record to the month before the month including the device usage date is set to 0. This can be achieved by providing a printing apparatus that further includes the second setting means.
According to a fifth aspect of the invention, the consumption can be achieved by providing a printing apparatus that is the number of printed sheets of the apparatus.

According to the fifth invention, the printing process is performed according to the printing data,
Initial period setting process for setting initial period;
On the device usage day when the device is powered on, perform a calculation process to calculate the current total consumption of the device and the monthly consumption of each month,
The calculation processing does not calculate the monthly consumption amount every time the printing process is performed, and when the device usage date is the first device power-on date of each month, the device usage is calculated from the current total consumption amount. The value obtained by subtracting the total consumption of the month with the newest monthly consumption record before the day is calculated only once as the monthly consumption of the month following the month with the newest monthly consumption record, This can be achieved by providing a printing control method characterized by storing in a storage means.
According to the sixth invention, each monthly consumption from the month following the month with the most recent monthly consumption record to the month before the month including the device usage date is set to 0. This can be achieved by providing a printing control method.

According to the seventh invention, the print processing is performed according to the print data,
Initial period setting process for setting initial period;
On the device usage day when the device is powered on, perform a calculation process to calculate the current total consumption of the device and the monthly consumption of each month,
In the calculation process , when the device usage date is the first device power-on date of each month without executing the calculation of the monthly consumption amount every time the printing process is performed, the device is calculated from the current total consumption amount. The value obtained by subtracting the total consumption of the month with the most recent monthly consumption record before the use date is calculated only once as the monthly consumption of the month following the month with the most recent monthly consumption record. A program for calculating monthly consumption up to the previous month based on information stored in the storage means,
This can be achieved by providing a program executable by the apparatus .
According to an eighth aspect of the present invention, each monthly consumption from the month following the month with the most recent monthly consumption record to the month before the month including the device usage date is set to 0. This can be achieved by providing a printing control method further comprising a second setting means.

According to the ninth invention, in the printing system in which the printing apparatus and the host device are connected via the network,
The printing apparatus includes:
A clock means for recognizing the date,
Initial period setting means for setting the initial period;
A setting means for setting a month including the first day as a first month and setting a month 12 months after the first month as a final month;
A calculation means for calculating a monthly consumption amount for each month on a device use day when power is turned on to the printing device;
Storage means for storing the monthly consumption of the result calculated by the calculation means,
The calculation means calculates the device usage date from the current total consumption amount when the device usage date is the first device power-on date of each month without calculating the monthly consumption amount for each printing process. The value obtained by subtracting the total consumption of the month with the previous most recent monthly consumption record is calculated only once as the monthly consumption of the month following the month with the most recent monthly consumption record, Storing the calculation result in the storage means;
The host device can achieve this by providing a printing system characterized in that the stored monthly consumption information is acquired from the printing apparatus and displayed on a display unit.

In addition, according to the tenth aspect, the printing apparatus, wherein from the most recent monthly consumption records a month for the next month, before the month of the month included the device using date, consumption each month This can be achieved by providing a printing system further comprising second setting means for setting the quantity to zero.

According to the eleventh aspect of the invention, the host device acquires monthly consumption information stored in the plurality of printing apparatuses from the plurality of printing apparatuses, and for one year from the first month to the last month. This can be achieved by providing a printing system that displays a list of information.

  According to the present invention, it is possible to accurately record and save the monthly total data and annual total data of the printing apparatus, and it is necessary to perform a special operation such as turning on the power to the printing apparatus in order to collect log information. Printing apparatus and printing system can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 2 is a configuration diagram of a printing system including a printing apparatus for explaining an embodiment of the present invention.

  In this figure, this system is composed of host devices 1 and 2 such as a personal computer (client PC) and a printer device 3, and the host devices 1 and 2 and the printer device 3 are, for example, a LAN (local area network). ).

Figure 1 is a diagram showing a configuration of the printer device 3, CPU 4, RAM 5, ROM 6, non-volatile memory 7, such as a flash memory, a display panel 8, a key (button) 9, the printer engine 10, a clock (Clock) circuit 11 The LAN control circuit 12 is connected to the host device 1 (and 2) via the LAN line 13 . The CPU 4 performs a printing process according to a program stored in the ROM 6, and the RAM 5 functions as a work area for the CPU 4.

The nonvolatile memory 7, the log data, and the total number of printed sheets is stored. Figure 3 is a diagram showing the structure of the log data stored in the nonvolatile memory 7. Log data is composed of a header part, an annual total data part, and a monthly total data part.

  In the header part, data on the introduction date and the beginning date are recorded. Here, the introduction date is the start date of the log, and is automatically set by the printing apparatus. The first day of the term is an item that can be set by the user. For example, it may be the start date of the company's accounting period, or may be set as January 1 and be one year of the calendar. For example, the first day of the term is April 1, and the fiscal year is from April 1 to March 31 of the following year.

  Data for each year is stored in the annual total data section, and data for the year, the annual number of printed sheets, and the total number of printed sheets at this point are recorded in the annual data for each year as shown in FIG. Monthly data for each fiscal year is recorded in the monthly total data section, and the monthly data for each month includes the year, year (calendar year), monthly degree, number of printed pages per month, as shown in Fig. B. The total number of prints is recorded.

In the printing apparatus configured as described above, the processing operation of this example will be described below.
FIG. 4 is a flowchart for explaining the processing operation of this example. When the printer apparatus 3 is first turned on, a hardware initialization process is performed (step (hereinafter referred to as S) 1). For example, voltage application processing to the high-voltage power supply, fixing device warm-up processing, power supply processing to the control circuit, and the like are performed.

Next, monthly / yearly aggregated data creation processing is performed (S2). This process is a process of creating the monthly total data part and the annual total data part described with reference to FIG. 3, and is specifically executed according to the flowcharts shown in FIGS.
Thereafter, other initialization processing is performed (S3), and the input of print data supplied from the host device 1 (or 2) is awaited.

Next, when the print data is input, the received print data (PDL) is analyzed to generate image data (S4). Then, the image data is sent to the printer engine 10 described above, printing processing on the recording medium is performed (S5), and the total number of printed sheets in the nonvolatile memory 7 is counted up (+1) (S6).

  Thereafter, the same processing is performed on the remaining received data (S7 is YES, S4 to S7), and when the processing of the received data is completed (S7 is NO), the next print data is awaited.

  In the above processing, the monthly / yearly total data creation processing is executed according to the flowcharts shown in FIGS. 5 and 6 as described above, and will be specifically described below.

  First, according to the flowchart shown in FIG. 5, the current date (device use date) information is read from the clock (clock) circuit 11 (step (hereinafter referred to as ST) 1). That is, the date information of the date when the user turns on the printer device 3 (device use date) is read.

Next, read the log data from the non-volatile memory 7 (ST2). That is, the recording in the nonvolatile memory 7, the log data stored read CPU 4, the information of the introduction date in the log data to determine whether it is set (S3). As described above, the introduction date is the start date of the log and is automatically set by the printing apparatus. Therefore, unless the data is set in the introduction date (ST3 is NO), then set the log data today's date as the introduction date is written in the nonvolatile memory 7 (ST4).

  On the other hand, when the introduction date information is already written in the log data (YES in ST4), it is further determined whether or not the first day information is defined in the log data (ST5). Here, if the data of the first period is not defined in the header part of the log data (ST5 is NO), the first period is set as the default April 1 (ST6). On the other hand, if data on the first day of the term is defined (YES in ST5), the first day of the term is disassembled on the first month and the first day of the term to obtain the last month (ST7). For example, if the first day is defined as April 1, the first month is April and the last month is March. If the first day of the term is defined as January 1, the first month is January and the last month is December.

  Next, the current year, current month, previous year, last month, and last month are obtained from today's date and first day data (ST8). For example, if the first day of the term is defined as April 1 and today is August 2008 × day, the current year is determined as 2008, the current month as August, and the previous year as 2007. In addition, July is obtained as last month, and 2008 is obtained as last year.

  Next, the year and month of the introduction date are obtained from the introduction date and the first day of the term (ST9). For example, if the introduction date is March 15, 2008, the year of the introduction date is 2007 and the month is March.

Then, reading the data of the total number of printed sheets from the non-volatile memory 7, the current total number of printed sheets (ST10). That is, provided the non-volatile memory 7, reads the value of the not shown counter that performs counting in synchronization with the printing process of each sheet by the printer unit 3, the current total number of printed sheets in the printer device 3.

  Next, it is determined whether the current year is the same as the year of the introduction date, and the current month is the same as the month of the introduction date (ST11). For example, in the case of the above example, the current year is not the year of introduction (2007), and the current month is different from the month (March) of the day of introduction (ST11 is NO), and the following processing is performed. On the other hand, when the current year is the same as the year of the introduction date and the current month is the same as the month of the introduction date (YES in ST11), there is no previous aggregated data, and the process ends.

Next, the monthly aggregated data in the log data is searched (ST12), and it is determined whether there is monthly aggregated data for the previous month (ST13). For example, in the case of the above example, it is determined whether today's date is August 2008 × day and there is monthly aggregate data for July.
Here, when the monthly total data for the previous month exists (ST13 is YES), that is, when the monthly total data for July 2008 is present in the above example, it is already in the period from August 1 to x The printer apparatus 3 is powered on, and it is determined that the monthly aggregate data creation process for July has been completed, and the process ends.

  On the other hand, if the monthly total data for the previous month does not exist (NO in ST13), the newest monthly total data is extracted from the monthly total data in the log data, for example, as the monthly total data for m-month n-month (ST14). ). For example, if there is no monthly total data for the previous month (July degree) on today (August 2008 x day), the latest monthly total data is extracted from the monthly total data in the log data, and m year n Monthly aggregated data for each month. For example, when there is monthly total data for June 2008 as the newest monthly total data, m = 2008 is set, and n = 6 is set.

  Next, a process of creating monthly total data for the month following the m-th month of the m year is performed (ST15 in the flowchart shown in FIG. 6). For example, in the above example, monthly total data for July 2008 is created. In this case, the fiscal year is fiscal year 2008, the monthly degree is July degree (n + 1), and the number of monthly printed sheets in July is equal to this point in the monthly total data of (current total number of printed sheets-m fiscal year n months (June 2008)) (Total number of printed sheets).

  For example, if the current total number of printed sheets is “15000” and the monthly total data in June 2008 is “14000”, the number of monthly printed sheets in July (n + 1) is “1000”.

Next, it is determined whether n + 1 is 13 (ST16). That is, n is 12 (December degree), and it is determined whether the process is over the years . In the above example, n = 6, and the determination (S16) is NO.

Next, it is determined whether the month of the monthly total data of the month following the m month n month is the first month (ST18). In the case of the above example, the initial month is set to April, and July, which is the next month of the year m, is not April, so in the case of the above example, the determination (ST18) is NO.

Therefore, monthly aggregated data m year n monthly monthly summary data for the next monthly (above 2008 July degree created by the processing (e.g., 1000) was added to the log data is written to the nonvolatile memory 7 (ST20 ). That is, in the above example writes the monthly summary data of July of a monthly summary data of the following month of the m year n monthly monthly aggregate data unit of the nonvolatile memory 7.

  Next, it is determined whether or not the month following the m month n month is the above-mentioned month end (ST21). In the above example, the first month is set to April, the last month is March, and July is not the last month (NO in ST21).

Then, m year n month of the next month of the monthly aggregated data year to determine whether it is the last month of the fiscal year (ST23). In the above example, m year 2008, the last month of the year is also 2008 (ST23 is YES), judges further months of monthly summary data of the following month of the m year n monthly is month of (ST24) In the case of the above example, the monthly degree (July degree) of the monthly total data next to the m-month n-month degree is the previous month degree (ST24 is YES), and the process ends.

Therefore, in the case of the above example (when today is August 2008 × day, and the newest data of the monthly total data recorded and stored in the monthly total data section is June 2008), the above processing causes non-volatile Monthly aggregated data for July 2008 is recorded in the monthly aggregated data portion of the memory 7.

On the other hand, in the above processing, when the processing is crossing years (when S16 is YES), for example, when the above-mentioned m year n month degree is December 2008 year, n + 1 becomes 13, and the next monthly total data The year (calendar) is incremented by 1, and the month is set to January (ST17).

In addition, in the above-described determination (ST18), if the month of the monthly total data for the month following the m-th month is the first month (YES in ST18), the monthly total data for the next month after the m-month is prepared. In the process, the year is set to m + 1 (ST19). For example, when the above-mentioned m-year n month degree is March 2008 degree, n + 1 is 4 (April degree), and in the above example, April is the first month, and the year is m + 1 (2009). The monthly total data for April of the year is recorded in the corresponding monthly total data section (ST20).

Moreover, creating the aforementioned determination (ST21), if the next month of the m year n monthly is ending month above (ST21 is YES), i.e. if the straddle year, the annual aggregate data for the previous year for the next year and, in addition to the log data written to the annual aggregate data of the non-volatile memory 7 (ST22). For example, next month the degree of m year n month degree if it is March, to create an annual aggregate data of 2008, written to the annual aggregate data of the non-volatile memory 7.

Further, in the aforementioned determination (ST24), if the month of the month summary data of the following month of the m year n monthly is not month degree (ST23 is NO), the monthly aggregation data of the following month of the m year n monthly created , Monthly aggregated data for fiscal year n month (ST25). In this case, as described in the above example, the most recent monthly aggregate data is not in June 2008, and the previous monthly aggregate data is the newest data. In this case, the monthly total data (for example, the monthly total data for May 2008 in the fiscal year 2008) following the created m year n months (for example, April 2008) is set as the monthly total data for the m year n months (S25).

  Then, the monthly total data for the month following the m month n month is created (ST26). In other words, the year is m, the monthly degree is n + 1, the monthly printed number of the corresponding monthly degree (for example, June, 2008) = 0, and the total number of printed sheets at this time is the current total number of printed sheets. Further, when the data is the number of previous monthly prints, the above process is repeated (ST16 to ST26).

Also, if the monthly summary data of the following month of the m year n monthly is not the last month of the year (ST23 is NO), repeats the above processing until further reaches the year, the month number of printed sheets corresponding monthly aggregation data 0 and then, sequentially recorded monthly summary data "0" monthly aggregate data unit of the nonvolatile memory 7 (S26).

By processing as described above, the nonvolatile memory 7 of the printer device 3 correct monthly aggregation data, and annual aggregate data recorded and stored. In particular, monthly aggregation data recorded in the nonvolatile memory 7 according to this embodiment, is held, and annual aggregate data, when the power of the printer 3 is turned on, automatically created by the above processing, the log information Therefore, it is not necessary to turn on the power supply to the printer device 3 specially for collecting data.

  FIG. 7 is a flowchart for explaining log information collection and display processing created by the above processing, and is executed by the host device 1, for example. FIG. 8 is a system diagram schematically showing the above process. As shown in the figure, the printer device 3 stores print data created from the host devices 1 and 2 based on the application program together with various ecology mode commands such as duplex printing, multi-page printing, and toner save. Then, the printer device 3 performs print output in which a so-called eco level is printed. The host device 1 includes a log collection unit 1a that collects the log information and a display unit 1b.

First, when the host device 1 is activated, log information is collected from the target printer device 3 (step (hereinafter referred to as STP) 1). The log information is collected by using, for example, FTP (file transfer protocol) and receiving a log information file transfer from the printer device 3 based on a log information collection instruction from the host device 1. The log information of the printer device 3 is data recorded in the nonvolatile memory 7 described above, and the log information is read from the nonvolatile memory 7 and transferred to the host device 1.

  The host device 1 takes out the information on the first day of the period to be included in the acquired log information and obtains the first month of the period (STP2). As described above, for example, the first day of the term corresponds to the company's fiscal year and calendar.

  Next, the month of one year from the first day of the term is displayed in the horizontal direction as a title (STP3). FIG. 9 is a display example of log information when, for example, the first day of the term is April 1st. In this case, April, May,..., March are displayed in the horizontal direction as titles for the month of one year.

  Next, the printer device name (for example, N3600.12...) Is displayed at the beginning of the line below the title (STP4). In addition, the number of prints is displayed as an eco item on the right side of the printer device name.

  Next, the number of monthly prints for one year from the first day of the period in the acquired log information is displayed under the month display corresponding to one horizontal row (STP5). For example, in the example shown in the figure, 118 (sheets) below the April display, 147 (sheets) below the May display, 165 (sheets) below the June display, and so on. Done.

  Furthermore, the yearly total of the number of printed sheets and the monthly average are calculated from the log information (STP6). In the example of the figure, the calculation results of 605 (sheets) as the total for the year and 151 (sheets) as the monthly average are displayed.

  The above processing is repeated for the printer device 3 to be managed (STP7). In the log information display example shown in FIG. 10, the first day of the period is set to January 1 and the monthly log information from January to December is displayed according to the calendar.

After the collection and display processing of log information is completed as described above, an event is waited for a mouse operation or key operation to be performed (STP8). In this example, non-volatile monthly aggregation data as an accurate log information in the memory 7 as described above, and annual aggregate data is recorded, are stored, the log information displayed on the display unit of the host device 1 correctly This information is useful for users in ecological practice.

In the above description of the embodiment, the number of printed sheets has been described as eco information to be recorded and stored in the monthly total data section and the annual total data section. However, for example, power consumption values and consumption amounts of consumables such as toner are targeted. It is good. In this case, the monthly total data section records and holds the power consumption for each month and the consumption of consumables such as toner, and the annual total data section stores the power consumption for each year and consumables such as toner. Consumption is recorded and maintained.
The first day of the term can be set freely by the user, and may be set according to the company's fiscal year or set according to the calendar. Furthermore, once set period start date can be changed, and in this case, log information display change processing is performed, for example, display corresponding to the changed period start date can be performed immediately.
In addition, although the first day of the first half of the description is described as the first day of each month such as April 1 and January 1, the present invention does not need to be the first day of each month, for example, the 11th, 21st, etc. It may be in the middle of the moon. For example, if the first day of the term is set to March 21, the first month of the term can be set to April and the last month can be set to March. In this case, April is from March 21 to April 20, and each month is from the 21st to the 20th of the following month.

2 is a diagram illustrating a configuration of a printer device. FIG. 1 is a system configuration diagram of a printing system. Is a diagram showing the structure of the log data stored in the nonvolatile memory. It is a flowchart explaining the basic processing of embodiment. It is a flowchart explaining the monthly / year total data creation processing of the embodiment. It is a flowchart explaining the monthly / year total data creation processing of the embodiment. It is a flowchart explaining the process of log information collection and display. It is a system diagram showing an outline of log information collection and display processing. It is a figure which shows the example of a display of log information when a period first day is set to April 1. It is a figure which shows the example of a display of log information when a period first day is set to January 1.

Explanation of symbols

1, 2, ... Host device 3 ... Printing device 4 ... CPU
5 ... RAM
6 ... ROM
7 ... the non-volatile memory 8 ... display panel 9 ... key (button)
10. Printer engine 11 Clock circuit 12 LAN control circuit
13. LAN line

Claims (11)

In a printing device that involves consumption when performing print processing according to print data,
A clock means for recognizing the date,
Initial period setting means for setting the initial period;
A calculation means for calculating a monthly consumption amount of what is consumed in a month including a device use day when power is turned on to the printing device;
Storage means for storing the monthly consumption of the result calculated by the calculation means,
The calculation means calculates the device usage date from the current total consumption amount when the device usage date is the first power-on date in the month without calculating the monthly consumption amount for each printing process. The value obtained by subtracting the total consumption of the month with the previous most recent monthly consumption record is calculated only once as the monthly consumption of the next month of the month with the most recent monthly consumption record, and A printing apparatus characterized by storing in a storage means. A first setting means for setting a month including the first day as a first month and setting a month 12 months after the first month as a final month;
When the year including the device usage date is the current year, the previous year is the previous year, and when the previous month is the last month of the previous year, the annual consumption of the previous year is calculated. The printing apparatus according to claim 1, wherein: And a second setting means for setting each monthly consumption to 0 from the month following the month in which the most recent monthly consumption is recorded to the month before the month in which the device usage date is included. The printing apparatus according to any one of claims 1 and 2 . The consumption printing apparatus according to any one of claims 1 to 3, characterized in that the number of printed sheets of the device. Print processing according to the print data,
Initial period setting process for setting initial period;
On the device usage day when the device is powered on, perform a calculation process to calculate the current total consumption of the device and the monthly consumption of each month,
The calculation processing does not calculate the monthly consumption amount every time the printing process is performed, and when the device usage date is the first device power-on date of each month, the device usage is calculated from the current total consumption amount. The value obtained by subtracting the total consumption of the month with the newest monthly consumption record before the day is calculated only once as the monthly consumption of the month following the month with the newest monthly consumption record, A printing control method characterized by storing in a storage means. The next month of the month where there is the most recent monthly consumption recording, the device uses the date of the moon the previous month that contains, according to claim 5, wherein each monthly consumption and sets to 0 Print control method . Print processing according to the print data,
Initial period setting process for setting initial period;
On the device usage day when the device is powered on, perform a calculation process to calculate the current total consumption of the device and the monthly consumption of each month,
In the calculation process , when the device usage date is the first device power-on date of each month without executing the calculation of the monthly consumption amount every time the printing process is performed, the device is calculated from the current total consumption amount. The value obtained by subtracting the total consumption of the month with the most recent monthly consumption record before the use date is calculated only once as the monthly consumption of the month following the month with the most recent monthly consumption record. A program for calculating monthly consumption up to the previous month based on information stored in the storage means,
Said apparatus executable program. And a second setting means for setting each monthly consumption to 0 from the month following the month in which the most recent monthly consumption is recorded to the month before the month in which the device usage date is included. A program executable by the printing apparatus according to claim 7 . In a printing system in which a printing device and a host device are connected via a network,
The printing apparatus includes:
A clock means for recognizing the date,
Initial period setting means for setting the initial period;
A setting means for setting a month including the first day as a first month and setting a month 12 months after the first month as a final month;
A calculation means for calculating a monthly consumption amount for each month on a device use day when power is turned on to the printing device;
Storage means for storing the monthly consumption of the result calculated by the calculation means,
The calculation means calculates the device usage date from the current total consumption amount when the device usage date is the first device power-on date of each month without calculating the monthly consumption amount for each printing process. The value obtained by subtracting the total consumption of the month with the previous most recent monthly consumption record is calculated only once as the monthly consumption of the month following the month with the most recent monthly consumption record, Storing the calculation result in the storage means;
The host device acquires the stored monthly consumption information from the printing apparatus and displays the information on a display unit. The printing apparatus sets the monthly consumption to 0 from the month following the month with the most recent monthly consumption record to the month before the month including the device usage date. The printing system according to claim 9 , further comprising: The host device acquires monthly consumption information stored in a plurality of the printing devices from the plurality of printing devices, and displays a list of information for one year from the first month to the last month. The printing system according to claim 9 or 10 .