Solutions
Close any unnecessary applications on your computer or smart device.
Solutions
Enable the bidirectional (or high speed) setting. When this setting is enabled, the print head prints while moving in both directions, and the printing speed increases.
Windows
Select Quality Options as the Level setting on the printer driver's Main tab, and then select High Speed.
Mac OS
Select Print Settings from the print dialog's pop-up menu, and then select High Speed.
Solutions
Reboot the wireless router while taking into consideration other users connected to the network. If this does not solve the problem, place the printer closer to your wireless router or see the documentation provided with the access point.