H-Class 111Fault MessagesThese high priority messages alert you to a printer fault condition. Use the table below tolocate the displayed message, associated description of the problem and possible solution.(Alternate messages may occur when downloading font, firmware, or boot loader files.); To return operation after a fault occurs, the fault must be corrected and the FEEDKey pressed.Fault MessagesDisplayed Message Description Possible Solution(s)ADC FAULTThe printer has detectedan analog to digitalcircuit converter failure.Cycle printer power OFF andON. If the fault does not clear,call for service.CLOSE HEAD LATCH The Printhead is notlatched.Lock the Printhead Latch (seeSection 3.1).DMA FAULTThe printer has detecteda Direct Memory Accessfailure.Cycle printer power OFF andON. If the fault does not clear,call for service.GAP MODECANNOT CALIBRATEConsistently low sensorreadings have beendetected for the media.Press any key to continue.Ensure that media was removedfrom the media sensor duringthe appropriate calibration steps(see Section 5.2); also, ensurethat ribbon has been correctlyloaded and that the sensor isclean (see Section 5.6.4). Retrythe calibration. If the problempersists, try Advanced EntryCalibration (see Section 5.2.2).GAP MODEFAULTY SENSORConsistently high sensorreadings have beendetected for the media.Press any key to continue.Ensure that media was removedfrom the media sensor duringthe appropriate calibration steps(see Section 5.2); also, ensurethat ribbon has been correctlyloaded and that the sensor isclean (see Section 5.6.4). Retrythe calibration. If the problempersists, call for service.