HP DesignJet D5800 Using Your Printer - Page 121
Lubricate the printhead carriage
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You should clean the paper-advance sensor window every 6 months, and whenever you experience printquality issues. 1. Unload the paper using the front panel procedure. See Unload a roll from the printer on page 29. 2. Use a clean, absorbent, lint-free cloth, slightly dampened with isopropyl alcohol, to wipe any dust and loosened ink deposits very gently from the sensor window. 3. Under ambient light, a clean sensor window shows a violet-colored reflection that extends uniformly across the entire surface. To see this reflection, look closely at the sensor window and slightly change your viewing angle. 4. Wait 3-4 minutes before reloading the paper to ensure that the alcohol has evaporated completely. Lubricate the printhead carriage The printhead carriage occasionally (about once a year) needs lubrication so that it continues to slide easily along the slider rod. 1. To gain access to the carriage, go to the front panel and select the printheads. The carriage slides to the middle section of the printer. icon, and then select Replace CAUTION: If the carriage remains in the central part of the printer for more than 7 minutes, it attempts to return to its home position on the right. 2. Open the printer window and apply a few drops of multi-purpose lubricating oil to the pads on either side of the carriage. NOTE: A roller lubrication kit can be ordered if necessary as part of the Printer Maintenance Kit. ENWW Lubricate the printhead carriage 113