Dear Jackson,
I tried these searches, but cannot find any alternative spooler. I looked at the link you sent, but the directories and files mentioned do not appear on my computer.
I think, at this stage, I have given up trying to use EPSON's Nozzle Check. I have set a color page to print once a day using the software suggested above. I hope this will keep the printer in reasonable health.
Thank you for your time and trouble on my behalf. I do appreciate it.
best... imcnab