JP2011134182A - Print system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a print system which performs ecology setting by determining the mounting of carbon offset articles of consumption, and furthermore, which can solve the problem that characters are too small or color is too light. <P>SOLUTION: In the print system wherein a printer and a host device for transmitting print data to the printer are connected, the host device includes: a storage means wherein a print condition relating to ecology is stored; a read means for reading the print condition from the storage means when carbon offset articles of consumption are mounted on the printer; a display means for displaying a print preview according to the print condition read by the read means; and a transmission means for transmitting print data according to the print condition to the printer. The printer performs print processing on a recording medium according to print data transmitted from the transmission means. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a printing system including a printing apparatus using consumables or replacement parts to which greenhouse gas emission rights are given.

  Today, the preservation of the global environment is screamed worldwide, and emission regulations for greenhouse gases such as CO2 (carbon dioxide) are being realized, centered on the Global Warming Prevention Conference. Under such circumstances, efforts are also being made to reduce CO2 in printing apparatuses.

  For example, previewing the print image before actually printing the print data, and ecology such as double-sided print settings, multi-page print settings, and toner save print settings for the purpose of contributing to the reduction of greenhouse gases. For this purpose, each function is set and printing processing is performed.

  Incidentally, Patent Document 1 has been proposed as a patent application for the purpose of ecology. This patent document sets a target value when using resources such as paper in an information processing apparatus including a printing apparatus, predicts the amount of future resource usage from the current resource usage state, and fails to achieve the target. Discontinue use when possible and disclose an invention that issues a report to achieve the goal.

JP 2007-249563 A

However, in the conventional method, the ecology setting is set while looking at the preview screen. For example, when performing double-sided printing setting, multi-page printing setting, and toner save printing setting, at least three setting operations are performed. is required.
In addition, when multi-page printing is set, it is difficult to understand the size of characters that are actually printed, so the characters may be small and difficult to read. In this case, the multi-page printing setting must be canceled and set again.
In addition, when toner save printing is set, it may be difficult to read the darkness of the color actually printed, so the color may be light and difficult to read. In this case as well, it is necessary to cancel the toner save printing setting and set it again.

  Therefore, when it is determined that a carbon offset consumable (CO consumable) is attached to the printing apparatus, the present invention displays a preview of printing conditions considering a preset ecology and automatically performs a printing process. In addition, the present invention provides a printing system that can solve problems such as characters being too small and colors being too light.

  According to a first aspect of the present invention, there is provided a printing system in which a printing device and a host device that transmits print data to the printing device are connected. The host device stores a printing condition related to ecology; When a carbon offset consumable is attached to the printing apparatus, a reading unit that reads the printing conditions from the storage unit, a display unit that displays a print preview according to the printing conditions read by the reading unit, And transmitting means for transmitting print data in accordance with printing conditions to the printing apparatus, and the printing apparatus is achieved by providing a printing system for performing printing processing on a recording medium in accordance with the print data transmitted from the transmitting means. it can.

  In addition, according to the second invention, the above-described problem can be achieved by providing a printing system in which the printing condition is designation of single-sided or double-sided printing, designation of multi-page printing, or designation of toner save printing.

  According to a third aspect of the present invention, the host device includes first determination means for determining the number of printed pages in the print data, and the one-sided or double-sided according to the number of printed pages in the print data. This can be achieved by providing a printing system that switches print designation.

  According to a fourth aspect of the present invention, the host device includes a second determination unit that determines the size of characters in the print data, and the multi-page is determined according to the size of the characters in the print data. This can be achieved by providing a printing system that switches whether printing is possible.

  According to a fifth aspect of the present invention, the host device includes a third determination unit that determines a use color in the print data, and determines whether or not toner save printing is possible according to the use color in the print data. This can be achieved by providing a switching printing system.

  According to a sixth aspect of the present invention, in the printing system in which a printing device and a host device that transmits print data to the printing device are connected, the host device has storage means for storing printing conditions relating to ecology. , Comprising at least one of the first, second or third judging means, and when the carbon offset consumable is mounted on the printing apparatus, the printing means based on the judgment result of the judging means is stored in the storage means. A setting unit that reads out the print condition from the storage unit; a display unit that displays a print preview according to the print condition read by the read unit; and print data according to the print condition. Transmitting means for transmitting to the apparatus, wherein the printing apparatus performs printing processing on the recording medium in accordance with print data transmitted from the transmitting means. It can be achieved by providing a system.

  According to a seventh aspect of the present invention, in the printing system in which a printing device and a host device that transmits print data are connected to the printing device, the host device stores printing conditions relating to ecology in a storage unit. Processing, processing for reading the printing conditions from the storage means when a carbon offset consumable is attached to the printing apparatus, processing for displaying a print preview according to the read printing conditions, and the printing This can be achieved by performing a process of transmitting print data according to conditions to the printing apparatus, and the printing apparatus providing a printing method for performing a printing process on a recording medium in accordance with the print data transmitted from the host device.

  According to the present invention, it is possible to determine the mounting of the carbon offset consumables, automatically read out the printing conditions in accordance with the preset ecology, and perform the printing process. In addition, problems such as characters being too small and colors being too light can be solved.

1 is a system configuration diagram of a printing system according to an embodiment. It is a figure which shows the data structure of a printing condition information part. It is a figure which shows the data structure of the minimum character size information memorize | stored in the minimum character size information part. It is a figure which shows the data structure of the minimum density information memorize | stored in the minimum density information part. It is a flowchart explaining the processing operation of this embodiment. It is a figure which shows the example of a setting of the preview display used in this embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
FIG. 1 is a system configuration diagram of a printing system according to the present embodiment. In FIG. 1, a printer apparatus 1 is connected to a personal computer (PC) that is a host device. The printer apparatus 1 performs a printing process on a recording medium (paper) in accordance with print data output from a personal computer (PC). The printer device 1 is provided with a detection device 1a that detects that a carbon offset consumable is attached. When the carbon offset consumable is attached to the printer device 1, the detection is detected by the detection device 1a. And transmitted to a personal computer (PC).

  Here, the carbon offset consumable is a toner set, a drum set, or the like to which an emission right related to greenhouse gas is given, and this emission right is used when generating electric power consumed during a period in which the printer apparatus 1 is operated. The carbon offset consumables manufacturer / seller purchases CERs as CERs on behalf of the users and provides them to the carbon offset consumables purchasers. The above-mentioned CER (Certified Emission Reduction) means the emission allowance (credit) acquired by CDM (Clean Development Mechanism). Is approved and issued by the CDM Executive Board.

  The personal computer (PC) includes an application (APL) 2, a preview & print setting unit 3, and the like, and is connected to a display device 4 used for preview display of print data, for example. The application 2 generates print data such as document data and transmits it to the preview & print setting unit 3.

  The preview & print setting unit 3 includes an intermediate data holding unit 6, an intermediate data holding buffer 7, an intermediate data conversion unit 8, an intermediate data display control unit 9, a printing condition information unit 10, a button control unit 11, a print page number determination unit 12, The character size determining unit 13 includes a character size determining unit 13, a used color determining unit 14, and the like. The character size determining unit 13 acquires information described later from the minimum character size information unit 15, and the used color determining unit 14 is described later from the minimum density information unit 16. Get information.

  The button control unit 11 includes an eco guide button 18, a single-sided print button 19, a double-sided print button 20, a multi-page no button 21, a multi-page button 22, a toner save no button 23, a toner save button 24, and a print start button 25. A corresponding instruction signal is input from each of the buttons.

  The character size determination unit 13 searches the intermediate data holding buffer 7 for the character size used in all print data in accordance with the character size determination instruction from the button control unit 11, and selects the smallest character size among them. Extract. Further, the extracted smallest character size is compared with the character size stored in the minimum character size information unit 15, and if it is less than the character size of the minimum character size information, the button control unit 11 is less than the minimum character size. If it is larger than the character size, the button control unit 11 is notified that it is larger than the minimum character size.

  The used color determining unit 14 searches the intermediate data holding buffer 7 for information on all colors used in all print data in accordance with the used color determining instruction from the button control unit 11, and has the highest density among them. Extract light colors. Further, the extracted density of the lightest color is compared with the density stored in the minimum density information section 16, and if it is less than the density stored in the minimum density information section 16, the button control section 11 determines the minimum density. If the density is lower than the density, the button control unit 11 is notified that the density is higher than the minimum density.

  The print page number determination unit 12 searches for all print data from the intermediate data holding buffer 7 in accordance with the print page number determination instruction from the button control unit 11, and stores “multi-page print” information in the print condition information unit 10. In consideration of this, the number of printed pages is calculated, and the calculated number of printed pages is notified to the button control unit 11.

  When there is an instruction to start printing from the print start button 25 via the button control unit 11, the intermediate data conversion unit 8 receives all print data from the intermediate data holding buffer 7 and is set in the print condition information unit 10. According to the printing conditions, the print data is converted and transmitted to the printer apparatus 1.

  FIG. 2 is a diagram illustrating a data configuration of the printing condition information unit 10. As shown in the figure, the printing condition information section 10 stores printing conditions for each ecology item as well as items relating to each ecology printing of “single-sided printing / double-sided printing”, “multi-page printing”, and “toner save printing”. Has been. The intermediate data conversion unit 8 performs eco level printing according to the printing conditions stored in the printing condition information unit 10.

  Note that double-sided printing is a printing process that reduces the consumption of paper by printing on the front and back surfaces of a recording medium (paper) by the printer device 1, and multi-page printing is for two pages, four pages on one sheet, .. Is a printing process that reduces toner consumption and paper consumption, and toner save printing is a printing process that controls the voltage applied to the developing device to reduce toner consumption and power consumption.

  FIG. 3 shows the data structure of the minimum character size information stored in the minimum character size information section 15 described above. As shown in the figure, in this example, information of 6 points (6 pt) is registered as minimum character size information. Further, FIG. 4 is a diagram showing a data configuration of the minimum density information stored in the above-described minimum density information section 16. As shown in the figure, in this example, the minimum density information is set to 80%.

  In the above configuration, the processing operation of this example will be described below. FIG. 5 is a flowchart for explaining the processing operation of this example. The process shown in FIG. 6 is a process in which, when a carbon offset consumable is attached to the printer apparatus 1, the printing conditions are set in the printing condition information unit 10 in advance in order to automatically read and apply the printing conditions. It is. FIG. 6 is a diagram showing a setting example of the preview display used in the present embodiment.

  First, it is determined whether or not a carbon offset consumable (CO consumable) is attached to the printer 1 based on the information previously obtained from the detection device 1a (step (hereinafter referred to as S) 0). If the CO consumable is used (S0 is Y), the process of S8 described later is executed via the branch (A). If no CO consumables are used (S0 is N), it waits for any button to be operated (S1 is NO), and if any button is operated (S1 is YES), the button control unit 11 Performs a process corresponding to the pressed button.

For example, if it is determined that the single-sided printing button 19 has been pressed, “single-sided printing / double-sided printing” in the printing condition information section 10 is set to “single-sided” (S2). On the other hand, if it is determined that the duplex printing button 20 is pressed, the “single-sided printing / double-sided printing” is set to “double-sided” (S3).
If it is determined that the multi-page none button 21 has been pressed, “multi-page printing” of the printing condition information is set to “none” (S4). On the other hand, if it is determined that the multi-page button 22 has been pressed, “multi-page printing” is set to “present” (S5).

  If it is determined that the toner save no button 23 has been pressed, “toner save print” in the print condition information section 10 is set to “none” (S6). On the other hand, if it is determined that the toner save button 24 is pressed, “toner save printing” is set to “present” (S7).

  Through the above processing, printing conditions corresponding to ecology printing are set in the printing condition information unit 10. Here, when the intermediate data display control unit 9 is notified of the display of the intermediate data (S20), the intermediate data display control unit 9 reads all the print data from the intermediate data holding buffer 7 according to this notification and prints it. Print data is converted according to the information in the condition information section 10 and a preview is displayed on the display device 4.

On the other hand, when it is determined that the eco guide button 18 is pressed, the following processing is further performed. However, even when the eco-guide button 25 is not pressed as described above, the following processing is automatically executed when a CO consumable is used.
First, the use color determination unit 14 is notified of use color determination (S8). In response to this notification, the used color determining unit 14 reads all print data from the intermediate data holding buffer 7 as described above, searches for information on all used colors, and extracts the lightest color among them. . Then, the extracted density of the lightest color is compared with the density stored in the minimum density information section 16, and if it is less than the density stored in the minimum density information section 16, the density is displayed in the button control section 11. Notify that it is less than.

  When less than the minimum density is notified from the use color determination unit 14, “toner save printing” in the printing condition information unit 10 is set to “none” (S9, S10). “Toner save printing” is set to “present” (S9, S11).

  Next, the character size determination unit 13 is notified of character size determination (S12). In response to this notification, the character size determination unit 13 reads all print data from the intermediate data holding buffer 7 as described above, searches for the size of the used character, and extracts the smallest character size among them. Then, the extracted smallest character size is compared with the character size stored in the minimum character size information unit 15, and if it is less than the character size of the minimum character size information, the button control unit 11 is less than the minimum character size. Notify that. When the character size determination unit 13 notifies the button control unit 11 that the character size is less than the minimum character size, the button control unit 11 sets “multipage printing” in the printing condition information unit 10 to “none” (S13, S14).

  On the other hand, when the character size is equal to or larger than the minimum character size information, the button control unit 11 is notified that the character size is equal to or larger than the minimum character size, and the button control unit 11 is notified by the character size determination unit 13 of the minimum character size or larger. Then, “multi-page printing” in the printing condition information section 10 is set to “present” (S13, S15).

  Next, the print page number determination unit 12 is notified of the print page number determination (S16). In accordance with the notification, the print page number determination unit 12 retrieves all print data from the intermediate data holding buffer 7 as described above, calculates the number of print pages by taking into account the multi-page print information in the print condition information unit 10, and calculates The button control unit 11 is notified of the number of printed pages.

  When the number of pages 1 is notified from the print page number determination unit 12 (S17), the button control unit 11 sets “single side printing / double side printing” in the printing condition information unit 10 to “single side” (S18), and the number of pages. If there are two or more notifications, “single-sided printing / double-sided printing” in the printing condition information section 10 is set to “double-sided” (S19).

  Next, the intermediate data display control unit 9 is notified of the redisplay of the intermediate data (S20). In accordance with this notification, the intermediate data display control unit 9 reads all print data from the intermediate data holding buffer 7, converts the print data according to the information in the print condition information unit 10, and displays a preview on the display device 4. For example, when “single-sided printing / double-sided printing” in the printing condition information section 10 is “single-sided”, a preview display expressing single-sided is performed, and when “double-sided” is displayed, preview display expressing double-sided is performed.

Further, when “multi-page printing” in the printing condition information section 10 is “none”, a preview display expressing that there is no multi-page is performed, and when it is “present”, preview display expressing that there is a multi-page is performed. Further, if “toner save printing” in the printing condition information section 10 is “none”, a preview display expressing that there is no toner save is performed, and if “yes”, a preview display expressing that there is toner save is performed.
The user confirms the preview display on the display device 4 and completes the setting of the printing conditions when the carbon offset consumable is mounted on the printer device 1 and when the eco guide button 18 is pressed.

  As described above, when the carbon offset consumable is mounted on the printer device 1, the detection device 1 a detects the mounting of the carbon offset consumable and transmits this information to a personal computer (PC) for verification. Because ecology printing conditions are set in the same way as when the eco guide button is pressed, ecology printing can be performed automatically, and ecology printing can be performed without performing complicated operations. .

  That is, when the user confirms the preview display on the display device 4 and determines that there is no problem with the character size or the like, the user presses the print start button 25 and instructs the button control unit 11 to start printing. The button control unit 11 notifies the intermediate data conversion unit 8 of the start of printing (S21), and the intermediate data conversion unit 8 receives all the print data from the intermediate data holding buffer 7 and stores it in the print condition information unit 10. According to the information, the print data can be converted and transmitted to the printer apparatus 1.

(Embodiment 2)
Next, Embodiment 2 of the present invention will be described. In this embodiment as well, the personal computer (PC) that is the host device has the configuration shown in FIG. 1 described above. Like the first embodiment, the printer device 1 is equipped with a carbon offset consumable. When a carbon offset consumable is mounted on the printer apparatus 1, the detection apparatus 1 a for detecting is mounted and detected by the detection apparatus 1 a and transmitted to a personal computer (PC). Further, in this example, the “multi-page printing” information in the printing condition information section 10 is different. This will be specifically described below.

  In the first embodiment described above, the “multi-page printing” information is set to “none / yes”, but in this example, “no / yes, yes 2up / 4up”. Further, the minimum character size information is assumed to be minimum character size information small and minimum character size information large. Furthermore, the multi-page button 22 is a multi-page 2up button and a multi-page 4up button (not shown). The multi-page 2up button is a button for instructing printing of two pages on one sheet, and the multi-page 4up button is a button for instructing printing of four pages on one sheet. is there.

  Here, when the button control unit 11 determines that the button without multi-page is pressed, “multi-page printing” in the print condition information unit 10 is set to “none”, and when it is determined that the 2up button with multi-page is pressed. If “multi-page printing” is set to “Yes 2up” and it is determined that the “multi-page printing 4up button” is pressed, “multi-page printing” is set to “Yes 4up”.

  If it is determined that the eco-guide button 18 is pressed, the character size determination unit 13 is notified of the character size determination. When the character size determination unit 13 notifies that the minimum character size is less than “small”, “multi-page printing” is set to “none”, and when notified that the minimum character size is less than large, “multi-page printing” is set to “yes 2up”. If the minimum character size is notified, “Multi-page printing” is set to “Yes 4up”.

  When the character size determination is notified from the button control unit 11, the character size determination unit 13 searches the intermediate data holding buffer 7 for the size of the character used in all the print data, and is the smallest among them. Extract text size. Furthermore, the smallest character size extracted is compared with the character size stored in the minimum character size information small. If the minimum character size information is smaller than the small character size, the button control unit is notified that the minimum character size is small. If the character size is smaller than the minimum character size information, the character size stored in the minimum character size information size is compared. If the character size is larger than the minimum character size information, the button control unit is notified that the minimum character size is larger or larger.

  When the intermediate data display control unit 9 is notified of the intermediate data display from the intermediate data holding unit 6 as described above, the intermediate data display control unit 9 reads all the print data from the intermediate data holding buffer 7 and outputs the print data according to the information in the printing condition information unit 10. The image is converted and displayed on the display device 4 as a preview.

  When the user confirms the preview display on the display device 4 and determines that there is no problem in the character size or the like, the user presses the print start button 25 and instructs the button control unit 11 to start printing. In accordance with this instruction, the button control unit 11 notifies the intermediate data conversion unit 8 of the start of printing, and the intermediate data conversion unit 8 receives all the print data from the intermediate data holding buffer 7 and is registered in the print condition information unit 10. The print data is converted according to the received information and transmitted to the printer apparatus 1.

  By performing the processing as described above, even when the carbon offset consumable is mounted on the printer apparatus 1 according to the second embodiment, the detection apparatus 1a detects the mounting of the carbon offset consumable, and this information is personalized. By transmitting to the computer (PC), the personal computer (PC) performs a preview display in accordance with the printing conditions set in the printing condition information section 10, and the user automatically confirms this display and thereafter automatically performs ecology. Printing can be performed.

(Embodiment 3)
Next, a third embodiment of the present invention will be described. In this embodiment as well, the personal computer (PC) as the host device has the configuration shown in FIG. 1 described above, and the printer apparatus 1 has a carbon offset consumable as in the first and second embodiments. A detection device 1a for detecting the attachment is provided. When a carbon offset consumable is attached to the printer device 1, the attachment is detected by the detection device 1a and transmitted to a personal computer (PC). This will be specifically described below.

  In the first embodiment described above, “toner save printing” is set to “none / present”, but this is referred to as “none / present level 1 / present level 2”. Further, the minimum density information is set to a minimum density information small and a minimum density information large. Further, the toner save button 22 is a toner save level 1 button and a toner save level 2 button (not shown).

  Here, if the button control unit 11 determines that the button 23 without toner save has been pressed, it determines that “toner save printing” in the printing condition information unit 10 is “none” and determines that the level 1 button with toner save has been pressed. In this case, “toner save printing” is set to “present level 1”, and if it is determined that the level 2 button with toner save is pressed, “toner save printing” is set to “present level 2”.

  If it is determined that the eco guide button 18 is pressed, the use color determination unit 14 is notified of the use color determination. When the use color determination unit 14 is notified of less than the minimum density, “toner save printing” in the print condition information unit 10 is set to “none”, and when less than the minimum density is notified, “toner save print” is set to “none”. When the level is “1” and the minimum density is notified, “toner save printing” is set to “level 2”.

  When the use color determination is notified from the button control unit 11, the use color determination unit 14 searches the intermediate data holding buffer 7 for all colors used in all print data, and among them, the lightest density is the lightest. Extract colors. Furthermore, the density of the lightest extracted color is compared with the density stored in the minimum density information small, and if it is less than the minimum density information small density, the button control unit is notified that the minimum density is small, If the density is smaller than the minimum density information, the density stored in the minimum density information is compared. If the density is less than the minimum density information, the button control unit is notified that the minimum density is less than the minimum density information. If the density is higher than the minimum density, the button control unit is notified that the minimum density is higher than the minimum density.

When the intermediate data display is notified from the intermediate data holding unit 6, the intermediate data display control unit 9 acquires all the print data from the intermediate data holding buffer and converts the print data according to the information in the printing condition information unit 10. The preview is displayed on the display device 4.
When the user confirms the preview display on the display device 4 and determines that there is no problem in the character size or the like, the user presses the print start button 25 and instructs the button control unit 11 to start printing. In response to this instruction, the intermediate data conversion unit 8 reads all the print data from the intermediate data holding buffer 7, converts the print data in accordance with the print conditions of the print condition information unit 10, and transmits the print data to the printer apparatus 1.

  By performing the processing as described above, also in the third embodiment, when the carbon offset consumable is mounted on the printer device 1, the detection device 1a detects the mounting of the carbon offset consumable, and this information is personalized. By transmitting to the computer (PC), the personal computer (PC) performs a preview display according to the printing conditions set in the printing condition information section 10, and the user automatically confirms the display and thereafter automatically performs ecology. Printing can be performed.

  In the examples shown in the first to third embodiments, the minimum character size information is “6pt”. However, another value may be used, and it may be set instead of a fixed value. Also, the character size determination unit 13 extracts the size of the smallest character in all the print data. However, it is not the smallest character, but the smallest character number among all characters or the smallest character character. You may comprise so that what percentage of character size may be extracted.

  In addition, the minimum character size information is stored for each type of character such as alphabetic characters, numbers, symbols, kana, kanji, and fonts such as Mincho and Gothic, and the character size determination unit 13 displays the characters in all print data. When searching, the size of the smallest character for each character type and typeface may be extracted and compared with the corresponding minimum character size information.

Further, although the minimum density information is “80%”, it may be a different value, or may be set instead of a fixed value.
In addition, the use color determination unit 14 extracts the lightest color in the entire print data, but it is not the lightest color, but from the lightest of all use colors, It is good also as a structure which extracts what color from the thin one.

  Further, the minimum density information is held for each drawing object such as text, graphic, and image, and when the used color determining unit 14 searches for the used color in all the print data, the lightest color for each drawing object is obtained. A configuration may be adopted in which the data is extracted and compared with the corresponding minimum density information.

DESCRIPTION OF SYMBOLS 1 ... Printer apparatus 1a ... Detection apparatus 2 ... Application 3 ... Preview & print setting part 4 ... Display apparatus 6 ... Intermediate data holding part 7 ... Intermediate data holding buffer 8 ...・ Intermediate data conversion unit 9... Intermediate data display control unit 10 ..Print condition information unit 11 ..Button control unit 12 ..Print page number determination unit 13 ..Character size determination unit 14 ..Use color determination unit 15・ ・ Minimum character size information section 16 ・ ・ Minimum density information section 18 ・ ・ Eco guide button 19 ・ ・ Single-sided printing button 20 ・ ・ Double-sided printing button 21 ・ ・ No multi-page button 22 ・ ・ Multi-page button 23 ・ ・ Toner No save button 24 ・ ・ Toner save button 25 ・ ・ Print start button

Claims (7)

In a printing system in which a printing apparatus and a host device that transmits print data to the printing apparatus are connected,
The host device is
Storage means for storing printing conditions related to ecology;
A reading means for reading out the printing conditions from the storage means when a carbon offset consumable is attached to the printing apparatus;
Display means for displaying a print preview according to the printing conditions read by the reading means;
Transmission means for transmitting print data in accordance with the printing conditions to the printing apparatus,
The printing system, wherein the printing apparatus performs a printing process on a recording medium in accordance with print data transmitted from the transmission unit.   The printing system according to claim 1, wherein the printing condition is designation of single-sided or double-sided printing, designation of multi-page printing, or designation of toner save printing.   3. The host device has first determination means for determining the number of print pages in print data, and switches designation of the single-sided or double-sided printing according to the number of print pages in the print data. The printing system described in.   3. The host device includes a second determination unit that determines the size of characters in print data, and switches whether multi-page printing is possible according to the size of characters in the print data. Or the printing system according to 3.   The host device includes a third determination unit that determines a use color in print data, and switches whether toner save printing is possible according to the use color in the print data. 5. The printing system according to 4. In a printing system in which a printing apparatus and a host device that transmits print data to the printing apparatus are connected,
The host device is
Storage means for storing printing conditions related to ecology;
Comprising at least one of the first, second or third determining means;
When a printing condition based on the determination result of the determination unit is set in the storage unit when a carbon offset consumable is attached to the printing apparatus,
Reading means for reading the printing conditions from the storage means;
Display means for displaying a print preview according to the printing conditions read by the reading means;
Transmission means for transmitting print data in accordance with the printing conditions to the printing apparatus,
6. The printing system according to claim 3, wherein the printing apparatus performs a printing process on a recording medium in accordance with print data transmitted from the transmission unit. In a printing system in which a printing apparatus and a host device that transmits print data to the printing apparatus are connected,
The host device is
A process for storing ecological printing conditions in a storage means;
When a carbon offset consumable is attached to the printing apparatus, a process of reading the printing conditions from the storage unit;
Processing for displaying a print preview according to the read printing conditions;
Processing to send print data according to the printing conditions to the printing device,
The printing method, wherein the printing apparatus performs a printing process on a recording medium in accordance with print data transmitted from the host device.