HP 3500cp Service Manual - Page 109

5 When the printer has finished aligning the Printheads, the message SAD Cyan: #.# / SAD Magenta #.#" will be displayed on the frontĆpanel. 6 Press the Up Arrow key and the message SAD Yellow: #.# / SAD Black #.#" will be displayed on the frontĆpanel. 7 Press the Up Arrow key and the message C2C X Cyan: #.# / C2C X Magenta #.#" will be displayed on the frontĆpanel. 8 Press the Up Arrow key and the message C2C X Yellow: #.# / C2C X Black #.#" will be displayed on the frontĆpanel. 9 Press the Up Arrow key and the message C2C Y Cyan: #.# / C2C Y Magenta #.#" will be displayed on the frontĆpanel. 10 Press the Up Arrow key and the message C2C Y Yellow: #.# / C2C Y Black #.#" will be displayed on the frontĆpanel. 11 Press the Up Arrow key and the message BIDIR 20: #.# / BIDIR 28 #.#" will be displayed on the frontĆpanel. 12 Press Previous when you have completed the test. The D1200 Done" message is displayed on the frontĆpanel if the test exits correctly. For steps 5 thru 12, if the values of the Printheads are between -1.0 and +1.0 for any of the Printheads then the test has passed. For steps 5 thru 12, if the values of the Printheads are NOT between -1.0 and +1.0 for any of the Printheads then the test has failed. If the test fails, to resolve the problem, try one of the following: 1 Perform the Printhead Alignment Calibration ' page 5Ć12. 2 The Line Sensor is not calibrated correctly. Perform the Line Sensor calibration ' page 5Ć9. 3 The lens cover, which is installed on the line sensor, is dirty. Replace the lens cover ' Users Guide, Chapter 10 (Lens Maintenance). 4 Perform the Electronics test ' page 4Ć6. 5 Check if the Media used is suitable for the printer. 6 Check if the Line Sensor is installed and connected correctly. 7 Replace the Carriage Assembly ' page NO TAG. Service Tests HP DesignJet CP Series Printers 4-25