A little while ago my Epson 7900 started showing error message '1A37' on power on. Although it suggests calling for service I haven't done this up to now as (a) the printer is a long way from any major city and ( it went away when the printer was powered down and back on again. Now it is appearing 5 or 6 times before the printer powers up correctly and I fear something is amiss. Has anyone seen this on their 7900 and if so does anyone know what the cause might be ? Many thanks.