What should I check first if my DCP-B7500D is not working properly?

First, verify that the machine's power cord is connected correctly and the power is on, and that all orange protective parts have been removed. Also check that paper is inserted correctly in the paper tray, interface cables are securely connected, and the machine's status is shown as normal in the Brother Status Monitor. For network models, confirm that the access point, router, or hub is turned on and the link indicator is blinking. (Page 13)