PLW NTR blank pages

I'm reading conflicting things here. In your heading you say blank pages, yet in your query you say it never prints. Try doing an engine test. The engine test button is located on the rear of the dc controller. To get to it, loosen the 2 screws on the formatter board (power off) and remove the board. You should see a small black button towards the left side of the dc controller board. Turn the power on and let it warm up. Push it and you should get one lined test page.

First, let me thank you for such a quick reply. Per your reply, I printed a test page, It was blank, no lines at all. Where to now?

Either you have a totally empty toner cartridge, or your high voltage power supply went bad.

Is the HV supply worth the effort to replace? I have a PLW that I picked up for a song that has the accordian maker output. Would the parts be compatable/swapable or is there a relacement available?

The parts are interchangeable. You have to disassemble most of the printer to get the hv power supply out. Cover, formatter board, dc controller, ac/dc power module. You can then see the hv board mounted in a plastic shell below the scanner assembly. 2 connectors and it slides right out.

I took the plunge and swapped the HV boards. I saw places inside that printer that haven't been seen since it was built, but I got it all back together and did the engine test with a manual feed. Wala, black stripes. The I put the formatter board back in an got a startup page. So good so far. I put the cover back on and then the 250 sheet feeder, turned it on again and It would not feed from the sheet feeder. I checked the connections engaged and cleaned the rollers/rubber feet with alcohol and tried again. This time it picked a sheet of paper but....did not print anything on it. I removed the formatter board and did an engine test. Again it fed a sheet but did not print on it. I took the sheet feeder off and manually fed a sheet with the engine test and .....Black lines. So the printer will print from an engine test from a manualy feed but not from the paper tray...Any guesses now?

I hardly ever guess. If I ever do, I'll tell you it's an educated guess. The only thing that would cause that is if the front solenoid plate was stuck down on the solenoid and the spring wasn't pulling it up. This would allow the paper to arrive too early, confusing the logic.

The paper "sounds" as if it is traveling at the correct time, that is it sounds the same as it always has. I surrender. Thank You for the advice. I have learned some neat stuff along the way.

I know this is quite an old thread, but it's very relevant to my problem. My NTR won't actually print anything with the optional paper cassette assembly installed on the printer. The only thing that will come through is a test page and that is blank. Attempting to print anything just causes the green light to flash. It starts out slower and ends up going faster. If I remove the paper cassette assembly all is fine. The printer has about 21k pages on it, but I added the paper cassette assembly a few years ago, I got it as what appeared to be NOS (New old stock) from an independent apple dealer. I'm printing on it from either Mac OS X or Windows 2003/XP via a Netgear PS101 ethernet print server. I can also bust out my PowerBook 140 and print from Mac OS 7.6, but I don't remember if there were any specific error messages when I last tried with that.

I would also be interested in the Rev 4.0 Rom upgrade if anyone had one, This has the original 2.0 Rom (it's on the startup page?)

The only thing that could cause the problem would be fixed by this kit http://www.fixyourownprinter.com/kits/apple/K53

OK. I was just unsure on that one because the first page never actually prints.

That appears to have fixed my problem. Thanks Moe!. The startup page still does come out blank sometimes. That's supposed to be one of the issues that the ROM upgrade addresses.