416 Service Functions6.3 Adjusting Label SensorAccess only when service key is inserted!With the Adj. gap sensor function label sensor can be adjusted in the see-through mode. This is necessary ifsensor elements or CPU PCB has been changed.! Attention!Close the print module and the cover after each loading or removal of material. This is required for asuccessful adjustment.MACH4Insert service key into a USB master interface.Press the menu button.Select Service > Adj. gap sensor menu.Press the button.The display shows Remove labels .Remove labels and transfer ribbon from the printer.Press the button.In the display the Insert liner message appears.Load liner (without labels). Ensure that no labels are found on the liner near the sensor. Otherwise, the result willbe faulty adjustment and device malfunction.Press the button.The message Ribbon, no liner is shown.Remove liner, load transfer ribbon.Press the button.In the display the Insert liner message appears again.Leave transfer ribbon in the printer, load liner additionally .Press the button.OK appears in the display after a successful adjustment.Confirm completion of the adjustment with the button.A+ SeriesInsert service key into a USB master interface.Press the menu button.Select Service > Adj. gap sensor menu.Press the button.The display shows Remove labels .Remove labels from the printer.Press the button.In the display the Insert liner message appears.Load liner (without labels). Ensure that no labels are found on the liner near the sensor. Otherwise, the result willbe faulty adjustment and device malfunction.Press the button.OK appears in the display after a successful adjustment.Confirm completion of the adjustment with the button.Error during adjustment:If an error occurs while adjusting the label sensor, Error appears in the display. If an error occurs again whenrepeating the adjustment, one of the following assemblies may be defective:Label sensor elementsConnection cables of the label sensorCPU PCB1.2.3.4.5.6.7.8.9.10.11.12.13.1.2.3.4.5.6.7.8.9.•••