36   A-Class 
Media Settings (continued) 
 
Menu Item  Details 
RIBBON LOW OPTIONS 
  
Defines the response when THERMAL TRANSFER is 
selected and the ribbon supply diminishes, where: 
RIBBON LOW DIAMETER  
 
Sets the threshold that will trigger a Low Ribbon 
Warning prompt, where: 
1.40in  (1.00 – 2.00) 
 
Is the outer diameter size of the ribbon roll. 
 
PAUSE ON RIBBON LOW  
 
Sets the printer to pause when the Ribbon Low 
Diameter setting is met, where:   
ENABLED  
 
Forces the user to press the PAUSE Key to proceed 
with the print job. 
DISABLED 
 
Allows printing to continue until ribbon empty is 
declared.  
   
SENSOR CALIBRATION  
 
Selects the method that is used to calibrate the media 
sensor, where: 
PERFORM CALIBRATION 
 
Enters the calibration process, establishing sensor 
values based on sampled readings (see Section 5.2.1). 
ADVANCED ENTRY  
 
Sets the sensor values based on an extended manual 
sampling process (see Section 5.2.2), where:   
SENSOR LEVELS 
170  (0 – 255)   
Establishes the threshold. 
 
SENSOR GAIN      
13  (0 – 31) 
Establishes the sensitivity.  
 
   
PRINTHEAD CLEANING 
 
Controls printhead cleaning alerts and functions, 
where: 
CLEAN HEAD SCHEDULE 
000 in. (* 1000) 
Specifies the inch (or centimeter) count (multiplied by 
one thousand) at which to clean the printhead. If this 
count is exceeded three times, a Head Cleaning Fault 
will occur.  
 
;
  Zero (000) disables this function. 
 
CLEAN HEAD COUNTER 
 
Indicates the number of inches (or centimeters) since 
a cleaning was last initiated. 
RESET COUNTER? 
 
Allows the Clean Head Schedule to restart the count, 
where: 
YES 
 
Resets the CLEAN HEAD COUNTER. 
 
NO 
 
Exits the menu item without changing the current 
setting.