4 Print Settings This chapter describes the functions and commands assumed to be configured each time the user performs printing. The printer control software should allow the user to enter information easily, and it is recommended for the commands to be transmitted each time printing is performed. Note that, if commands are not transmitted for each printing job, printing will be performed with the setting values that are saved in the printer. The settings that can be configured in the printer are categorized in this document as print settings, described in this chapter, and printer settings, described in Chapter 6.
Print settings are assumed to be changed by the user each time printing is performed, and printer settings are assumed to be changed by the user when changes are made to the way the printer is used, such as when replacing paper. Examples are provided for how printer setting items are categorized, and the printer control software can define the categorization according to the system requirements. Categorization must observe the command transmission timing and setting storage policy for the printer, with the setting features shown in the table below. Details that require particular attention are noted below.
If the settings for items that are classified in this document as printer settings are changed while printing is in progress, unintended behavior may occur. If the printer control software implements a printer setting from this document as a print setting, the next print job must not be started while printing is in progress. The setting storage command (^JUS) can be sent to the printer to save settings in the printer control software and retain the settings even when the printer's power is turned off. However, the setting storage command cannot be sent to the printer for setting items that the printer control software implements as print settings.
This is because there is a limit to the number of times that the printer's internal nonvolatile memory can be overwritten, and this could shorten the service life of the printer. Of the setting items that are categorized as print settings in this document, the settings for the control timing of buzzers, pausing the printer, and cutting cannot be stored in the printer, and therefore they cannot be used as printer settings. Table 4-1 Setting features Epson ESC/Label Application Development Guide CW-C8000 Series Rev.
B Page 16 Setting User requirements Command transmission timing Setting storage in printer (Using ^JUS) Print settings Change settings for each print job While printing Prohibited Printer settings Change settings only when changing the way the printer is used When idling Allowed