HP 750c HP DesignJet 755CM Printer User's Guide - C3198-60051 - Page 96

Working with Media and Cartridges Replacing Cartridges WARNING CAUTION CAUTION CAUTION Before Replacing Cartridges Four important points: 1 Your printer is designed to operate only with the four cartridge types whose specific part numbers are listed on page 11-15. Except on glossy media types, the printer will operate successfully in monochrome with just the black cartridge loaded, although the Best print quality may not be as good as if all cartridges were loaded. Otherwise, all four must be loaded. 2 Every time you replace, or even adjust, a cartridge, the printer afterwards runs an automatic alignment procedure, for which it needs an opaque media type, for example opaque bond (regular printer paper) or coated paper. So make sure that either a roll or a sheet of the appropriate media is loaded before you replace a cartridge. If the automatic cartridge alignment procedure is not run on a suitable media type, print quality will be affected. 3 Once the cartridges have been installed they should not be removed, except to replace them. This will ensure the best lifetime for your cartridges. 4 Make sure you are aware of the general warnings and caution below. Don't touch the stainless steel strip that runs the length of the printer behind the cartridge carriage; its edge is very sharp. Keep hair, jewelry, clothing, and foreign objects away from the printer mechanisms. Keep new and used print cartridges out of the reach of children. Only touch the plastic parts of the cartridge. Do not touch, wipe, or attempt to clean the cartridge nozzles or contacts as they can become clogged or scratched and are easily damaged. Each time you access the cartridges to load or reseat them, the nozzles are exposed to air. If the nozzles are exposed to air (except during printing) for more than a few minutes at a time, they are susceptible to clogging and drying. It is absolutely essential to load the cartridge(s) in the correct stalls, or your colors will be wrong and print quality may be impacted. 3-26