HP Designjet 4000 Service Manual - Page 146

Service Calibrations 1. Scan Axis Calibration The purpose of this Service Calibration is to carry out a PWM check, calibrate the intensity of the Line Sensor and calibrate the Line Sensor position to the Black Printhead. Perform the Scan Axis Calibration whenever: „ Carriage is disassembled or replaced. „ Encoder Strip is disassembled or replaced. „ Center Platen is disassembled or replaced. Perform the Scan Axis Calibration as follows: Make sure you load one of the following media into the Printer before performing this calibration: „ HP Bond Paper. „ HP Glossy Media. „ HP Coated Paper. „ HP Productivity Photo Gloss. „ HP Heavyweight Coated Paper. „ HP Super Heavyweight Coated Paper. „ HP Bright White Inkjet Paper. 1 In the Service Calibrations submenu, scroll to "Scan Axis Calibration" and press Enter. Press Enter 2 When the following message appears on the front panel, you must select whether you would like to continue with the calibration by pressing the Enter key. Press Back or Cancel to exit the calibration. Press Cancel or the Back key to Exit Press Enter to proceed 5-4 hp designjet 4000 series printer service manual