I have been using airport express's printer sharing for quite some time and its been working perfectly with an HP Laserjet 1200, both are connected to an APC be650r UPS. The twist is. This might not fit into networking but it has airport involved.
I want to move this setup into my car and get a 120v adapter for the cigarette lighter and put it into the back of my honda element so I can have mobile printing. I do computer consulting and want to print invoices. However with all the testing I can't seem to get it to print in the car. Unplugged it doesn't work, I have a power inverter. For the life of me I can't figure it out. Car on or off it won't print thru a full page. Anyone have any thoughts or ideas for portable printing. On that note, the 120v plug in the car turns off and I turn the APC off when the car isn't running.