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Here's an example: http://tubedata.jp/sheets/200/z/ZZ1000.pdf http://tubedata.jp/sheets/200/z/ZZ1000.pdf If you make a replacement circuit that provides the same or close enough shunt regulator specs,

I'd get a 4050 or 4100. These printers are REAL workhorses, has parallel port, network port, lots of memory, duplex option, cartridge for 15000 prints, can use 2/3 paper drawers and the whole works. I

I LOLed :D

[hp_agilent_equipment] wrote: Yes. I love my big non-cheap-consumer-crap printers. We put them through far less abuse here than most big companies (but far more than most individuals) and they don't

Hi Gary, Denis, Ed, and Alan, You are all correct, I read the value wrong. My printed schematic looks poor on paper! Ok, so an 82 volt zener (or equivalent) would do the trick. Yes, that "bulb" does

Dave, I'll keep your suggestions in mind. Some pieces of gear were made better and because of it, lasted longer. Looking for exactly what you're describing. Only reason I'm staying with the legacy

I have two 141’s. One with the infamous VR tube, which consistently blows fuses on the IF’s, and one with a more recent power supply. I’ve not used the older unit in years, but I have purchased

Are you sure it's a 62V zener that's needed? My HP141T neon was 82V. ?I ?have recently replaced the Neon in mine with two series connected 1W Zeners of 39V and 43V. ?It drifts slightly for about 20

If the part you're looking at is the voltage reference for the power supply, I believe you have some things to figure out. As I recall, the proper reference voltage is around 83-85V, produced by a

[hp_agilent_equipment] wrote: Their non-consumer printers are still top notch, but if you're not prepared to drop $4,000 on one, forget it. Personally, I use HP's older enterprise-grade printers, like

I have that circuit out in front of me trouble shooting that 100v supply on anothe system. My thought is that a 62v "zener" is not close enough to the 82v neon. You need another 20v "zener" in series

Rebuild kits are el-cheapo for the LJ-4. Fixes error 13. Toner (OEM) can be had on Craigslist. Offices cleaning out the closet. Bought a closet full. (like 10 OEM toner cartridges). Have two rebuild

I am quite satisfied with my printer but don't have a cheap source of? toner.? Further, HP has a reputation of paper feed problems due to broken plastic gears.? Yes duplex is an add on but it's a

Bob, The duplexer is a mechanical add-on. It won't natively do duplex. These things are great. Easy to work on. Awesome for printing manual pages when doing a project. Hit control+P and give it 100

I have one of these.? It was used by someone who couldn't figure out how to make it do duplex; that's why I got it very cheaply.

Title says it all. Reasonalbe page count, please. Must be working. Will pick up in the northeast. Have jetdirect cards, so that is not necessary. Norman J McSweyn

Hi All, I have recently acquired an HP-141T with the 8554B and 8552B plugins. Over the past month, the fuses in the plugins have blown three times. I've heard this can be an indication of an issue

What sort of problems are you looking to have with it? It is simply a parallel connection at HSWP In/Out, Pin 44, wire is white with black/green tracer. Connector is $15 outside world option (not

I have an HP 8566B working using a 85662-60220 cable. What are the failure symptoms when you use this cable on your 8566? -rastro

You might get more help if you provide the proper model number. I assume it is an 8714ES.