You are responsible for performing routine maintenance on your company's laser printers. which of the following routine maintenance does not require that you disconnect the laser printer from its power source?
a. replacing the tonerb. installing the maintenance kitc. calibrating the printerd. cleaning the printer

Option B i.e., installing the maintenance kit is the correct answer.

Explanation:

Because when the user performs maintenance daily of the laser printer of his company then he replaces the toner of the printer if needed then, calibrating the printer if required and daily cleaning that laser printer for the smooth working and printing. The installation of the maintenance kit is not required for routine maintenance.

the today function returns a valid value without any arguments.

the today function returns the current date based on the computer's date setting and formatted as a date. today takes no parameters, but requires that you use empty parentheses