On epson injet printers after setting up a normal printer share and the appropiate permissions you cannot print even thought the print job has arrived in the queue on the host machine, though not always completely dowmloaded.
Explanation:
This is a problem caused by epson status monitor having conflicts with other programs such as antivirus and firewalls and the data not being passed to the spool queue properely.
Solution:
1. got to printer preferences
2. select maitenance tab
3. then press, speed and progress button
4. tick 'Disable EPSON Status Monitor' and enable 'Always spool RAW datatype'