HP B9100 manual Care and maintenance, Leave the printer on, Replace the ink cartridges

4 Care and maintenance

This section contains the following topics:

●Leave the printer on

●Replace the ink cartridges

●Replace faulty printheads

●Clean the printer

●Align and calibrate the printer

●Print a test page

●Print a sample page

●Download printer software updates

●Uninstall the printer software

Follow the guidelines in this section to extend the life span of the printer and printing supplies, and to ensure that the photos you print are always of the highest quality.

Leave the printer on

HP recommends that you always leave the printer plugged in and turned on so that it can periodically perform self-servicing routines. If you leave the printer off for an extended period of time, you will experience a decline in print quality, automatic maintenance routines will need to be run, and you may have to replace one or more printheads.

The printer performs a self-servicing routine if the printer is idle for 24 hours or more. The length of time it takes for the servicing routine to be completed depends on how long the printer has been idle. As part of the servicing routine, a nozzle health sensor checks the printhead nozzles for blockages, clears any blockages found, if possible, and substitutes nozzles as needed. For more information on cleaning the printheads, see Clean the printheads automatically and Clean the printhead nozzles manually.

Replace the ink cartridges

For information on installing the ink cartridges and printheads the first time after you purchase the printer, see the Quick Start guide.

For optimal printing results, HP recommends using only HP ink cartridges. Inserting an incorrect cartridge may invalidate the printer warranty.

HP does not recommend modifying or refilling HP cartridges. Damage that results from modifying or refilling HP cartridges is not covered by the HP warranty.

For best print quality, HP recommends that you install all retail ink cartridges before the date stamped on the box.

Do not open the ink cartridge packet until you are ready to install the ink cartridge.

HP Photosmart Pro B9100 series User Guide 33