A:AnswerThe tricolor cartridge can yield up to 165 pages but I am unsure of what size photographs you are printing so my guesstimate would be maybe 100 to 150 depending on the size and the depth of color.
A:AnswerTop opens, hinged at rear, much like any other HP printer.
Shutdowns?
This printer automatically will go to sleep after an (adjustable) delay, but will wake up when anything is added to its print queue via the network.
A:AnswerMine is always in standby. It briefly turns on when I turn on or reboot my computer. Beyond that, it activates whenever I send something to it for printing - either via wired computer or wirelessly from my phone & tablets. In addition, it will activate if I run my fingers across the printer's screen.