HP Designjet 4000 Service Manual - Page 159

Service Calibrations 3 If media is not loaded, the following message appears on the front panel. Load media in to the Printer and start again from step 1. Before continuing, the Printer will check the following: „ The Media Lever is in the lowered position. „ The correct paper type is loaded (check list on previous page). „ The correct paper size (minimum paper size 24 inches). If these conditions are not met, a warning will be displayed on the Front Panel and you will need to restart the Calibration from step 1. Make sure you keep your hands away from the Print Platen as the Carriage will be moving at high speed and you could injure yourself or damage the Carriage Assembly. 4 The Printer will start to calibrate the Line Sensor. Once the Line Sensor has been calibrated, the results will be displayed on the Front Panel. Press Enter to continue or press Back or Cancel to exit the calibration. If the values are not within the range specified, an error will appear on the Front Panel. In this case, try the following: „ Try the Scan-Axis Calibration again. „ Replace the Line Sensor ⇒ Page 8-31. 5 The Printer will start to calibrate the Line Sensor position to the Black Printhead. It will print a line of black dots and then scan them: hp designjet 4000 series printer service manual 5-17