Networking Question about HP LaserJet P2035

Hi, so my boss has a LaserJet P2035 connected to his computer via USB, and his computer is connected to the company network via ethernet.  But for some reason, he cannot print anything from an iPhone or other smartphone/wireless device to the P2035 printer.  It doesn’t show up as being available from our wireless devices.

I know that I should be able to print to the LaserJet P2035.  I have checked the printer sharing settings on his computer, and it is all correct.  However, while four other printers on the network show up in windows explorer, under “Network”, the P2035 printer only shows up as a sub-directory of the computer to which it is attached.  What should I do?

(Added Edit) ->  So, just a further little bit of info.  Our company is stradling the generational divide, and in the past year we have begun to “modernize” by having our foremen in the field text message pics of their material orders in to the warehouse.  All I am looking to do is to have those embedded pics printed from the LaserJet P2035.  How do I achieve this?  Without forwarding the text pics through an email to the computer to be printed.