I am attempting to print in my car from a Lenovo Thinkpad to HP Laserjet P1102w which is all being powered by a 1500 watt power converter that is hardwired to my car battery. However it will only print one page or less before the power converter loses all power and then reboots within 30 seconds. This continues to happen no matter what I do or if I only have printer plugged in. Ideas?!!