HP Officejet Pro 8610 e-All-in-One Printer - Manual (Page 118)

Store printing supplies
Ink cartridges can be left in the printer for extended periods of time. However, to assure optimal ink
cartridge health, be sure to turn off the printer properly.
For more information, see Turn the printer off on page 38.
102 Chapter 7 Work with ink cartridges ENWW