HP Designjet 2800/3800cp Service Manual - Page 134
Load media before performing this test., MAKE SURE THAT THE WINDOW IS CLOSED BEFORE
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C05. Printheads Alignment The purpose of this calibration is to test and if necessary correct the misalignment between the printheads. This Calibration is necessary to avoid color misalignments and print quality defects like banding. Perform the Printheads Alignment calibration whenever: D Carriage is disassembled or replaced. D Banding is detected in prints. D Misalignment between colors is detected. D Refill Assembly is disassembled or replaced. D Electronics Module is replaced. Load media before performing this test. Perform the Printheads Alignment Calibration as follows: MAKE SURE THAT THE WINDOW IS CLOSED BEFORE YOU PERFORM THIS CALIBRATION. 1 In the Calibrations submenu, scroll to "C5 Printheads Align." and press Enter. Calibrations C5 Printheads Align. 2 If media is not loaded the calibration will stop and the message "Load Media" will be displayed on the front-panel. Load media in order to continue the calibration. 3 While the Calibration is being performed, the message "Aligning Printheads" will be displayed on the front-panel. 4 If the calibration is performed correctly, the "C0500 Done" message is displayed on the front-panel. 5 If the calibration fails, the "C0501 Fail" message is displayed on the front-panel. If the calibrations fails, to resolve the problem, try one of the following: 1 If the calibration pattern is bad: D Try recovering the printheads using the front-panel menu and try the calibration again. D If the calibration pattern is bad again, then replace the complete Ink Delivery System of the color that is bad. 2 Perform the Electronics Test ' page 4-7. 3 Perform the Line Sensor Test ' page 4-10. Service Calibrations HP DesignJet CP Series Printers 5-13