Omron NS Programming Manual page 75

Section 2 NS Series Functions 2-4 System Memory
NS Series Programming Manual
Printer head-cleaning ($SB28)
$SB28 starts cleaning the printer head. When $SB28 is turned ON, the cleaning of the head is started.
$SB28 will remain ON until turned OFF either from the host or using a functional object. The head
cleaning operation depends on the printer. Refer to the manual for your printer for details. If a
PictBridge-compatible printer is being used, the setting of $SB28 will be ignored.
Update Printer Status ($SB29)
$SB29 controls the Printer Busy Status ($SB30) and the Notification of Printer Error ($SB31). When
$SB29 is turned ON, $SB30 and $SB31 turn ON and OFF. If printer operation has completed normally,
however, $SB31 will not turn ON. If a PictBridge-compatible printer is being used, the printer may not
output a printer error to $SB31. If an error is not output, turn ON Start Printing/Capture Screen
($SB25) or Update Printer Status ($SB29) to output the printer error to $SB31.
Printer Busy Status/Capture Busy Status ($SB30)
$SB30 turns ON when the following operations are being executed: Start Printing, Test Pattern Printing,
Printer head-cleaning, and Capture Screen. $SB30 turns OFF automatically when these operations
have been completed. It also turns OFF if the Stop Printing bit turns ON when printing a screen.
Notification of Printer Error/Capture Screen Error ($SB31)
$SB31 turns ON when any of the following operations end in an error: Start Printing, Capture Screen,
Test Pattern Printing, Printer head-cleaning, or Update Printer Status. It also turns ON if a printer is not
detected when the PT is started or if an error is detected, including USB port errors, printer not con-
nected errors, broken connection errors, no paper errors, no ink errors, and other hardware printer er-
rors. $SB31 turns OFF when all errors related to Start Printing, Capture Screen, Test Pattern Printing,
Printer head-cleaning, or Update Printer Status have been eliminated.
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