What does ap mean - Copystar CS-1810 Copier

You don't seem to understand what an Access Point is.

an AP is used to extend your wireless range and will connect to your router to provide network and internet access. An AP by itself cannot connect to the ISP since it does not use a WAN port

a router is an AP that will allow you to connect to your ISP for internet connection. A router can be configured to work as an AP but a AP cannot function as a router.

Read the manual. When you reset the AP the IP of the AP device became 192.168.1.1
That means you need to set the IP address of your computer to 192.168.1.x where x is anything from 253-2 and the subnet mask to 255.255.255.0

What exactly do you mean by AP loses IP?

Are you saying the AP access point is no more able to get IP from DHCP server?

or the AP is no more able to provide IP to the connecting users?

The AP & DNS means a code which makes your mobile registered.the dns and ap address will be getted from the wifi connection center .

AP means add powder. to fix the problem replace the toner

AP means...ADD POWDER. Actually add toner.

it means Add Power aka toner out

Hello dear; Don't worry about "AP" means adding toner, machine is working on that.

it means add toner (add powder (ap))

AP means that the copier is going thru a major toner cycle.
Sometimes when you drag a lot of toner out for dark copies, the normal toner cycle is not enough.
The spring that takes the toner from the cartridge to the dev unit mat also be faulty or broken.
Sometimes the AP message will go away but make sure you have plenty of toner. 

Do you have paper in the machine?