MKR GSM 1400 to sharp mx-4111n

I am trying to conenct a MKR GSM 1400 to a sharp mx-4111n. This is one of those multi-function printers. On the printer side what do I need to know? I want to send a signal from my mobile phone and make the printer unusable and also create a display message on the printer touch screen.
What do I need to connect the MKR GSM 1400 to? Do I need to ask the Sharp engineers any specific quetions?

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