hi pjhutch, this weekend I had some free time so I disconnected my printer and moved it downstairs and installed it to the office computer. I enabled printer sharing on the new host computer and then attempted a print test over the network which was succesful.
However, as mentioned in my original post, the issue would be printing when the office computer has gone to sleep. I checked the BIOS looking for the 'Wake on LAN' feature you mentioned and came across a feature called 'Remote Wake-up' which I presumed to be an alternative wording for the feature you described and proceeded to set it to "ON". After this setting I waited for the computer to fall asleep and then tried to look for the machine/printer in the network viewer, hoping that would spark it to wake up. Unfortantely no such luck.
I did a search and came across mention that there was an additional setting required for the network device in order for this feature to work. So I went to Device Manager>Network Adapters>Intel Pro Network Adapter>Properties>Power Management and found that the setting I was to select was already ticked 'allow device to wake computer'. In addition another subsetting 'only allow magic packet to wake the computer' is also ticked, though I am not sure what this means.
At the moment I am a little bit stuck as I am not exactly sure the process by which I trigger the office computer to wake in order to use the printer. As such any help or advice would be greatly appreciated.