HP Enterprise CC490A manual Before performing service, After performing service

Before performing service

●Remove all media from the product.

●Turn off the power using the power switch.

●Unplug the power cable and interface cable or cables.

●Place the product on an ESD workstation or mat, or use an ESD strap (if one is available). If an ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part.

●Remove the print cartridges. See Print cartridges on page 74.

●Remove the tray cassette or cassettes. See Tray on page 84.

●If the optional paper feeder is installed, separate the product from the feeder.

WARNING! The product is heavy. Do not try to separate the product from the optional paper feeder by yourself. Three people are required to lift the product off of the feeder.

After performing service

●Plug in the power cable.

●Reinstall the print cartridges.

●Reinstall the tray cassette or cassettes.

●If the optional paper feeder was installed, place the product on the feeder.

WARNING! The product is heavy. Do not try to separate the product from the optional paper feeder by yourself. Three people are required to lift the product off of the feeder.

70 Chapter 2 Removal and replacement ENWW