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yes, the fact that the green led lights does not mean it is a good board.

probably the way to go. i would trust your assessment. i have bought many bad boards on ebay, especially ones that are not easy to test

i realize this is not a good place for you to order, but, gives you an idea of what the price is less than the price of 2 ink cartridges...

My best suggestion would be, if nothing lights, buy a replacement power supply. even those of us who are qualified tondo that type of repair rarely have success. the service manual ASSUMES troubleshooting end with replacement of a circuit board. hp has the circuit drawings for board level repair...

I will have time later to review the manual a bit, but, this will not be a change the fuse situation. my guess would be you wil” end up replacing the power supply. before you do, it would be worth taking the power supply out of the machine &removing the covers. you will most likely find the...

It appears there are 2 sets of status lights that indicate the condition of power supply and the state of system board. Should get you pretty far into the process

you could try shaking them once in a while

https://www.laserexpressinc.com/manuals/HP/hp-dsj-t790-t1300-z5400-t2300-service-manual.pdf

i guess that's why the typical service manual is 500 pages long... i just printed the manual for my designjet (t1700dr) 550 pages

shouldn't you simply google & watch a couple youtube videos? when i bought my big cnc a few years ago, i watched a 90 minute video and went step by step & made a square and a circle and routed them, and took out a tape measure and adjusted so the size was correct... this is what everyone has to do

re you talking about nesting? (arranging your prints with a minimum or white space between them when the choice is complicated by having your substrate available in different widths)?

i was just gonna say one of those "test pens" is a great idea with my luck, i would do the job just at the time the timer for the lighting kicks in. we had an electrician friend years ago who got zapped in the basement of a fish market in newark he survived but the helper said he twitched and...

i got my bucket truck the same way as my printers in "manufacturer says it can't be fixed" condition from an electrician in parsippany paid $2200 & killed the better part of 4 sundays getting it in working condition. (i am notoriously cheap, but fairly good at troubleshooting) i only use it...

or cut the damned thing into convenient bite sized chunks with the angle grinder. buy 3 orange cones at home depot and let the pieces fall where they may

the customer either pays for the rental or DECLINES and goes with someone else why not rent a piece of scaffolding? (or buy one on craigslist and stick it behind the garage?)

there was a time i would have killed for this guide. it looked so simple as i pulled it apart...

is there ACTUALLY a com1 on the laptop? it is rare these days to see a db9 connector most devices still have a com1 and com2 even if they are just phantom devices, and perhaps a header on the motherboard, deep in the laptop if you are using a usb to serial device, it would normally be com4 or...

it is also possible that reassembling it, you put the little rivets in the wrong hole. being off by less than an inch makes the ribbon "bunch up"

I know I shouldn’t be such a Luddite when it comes to software (I am a consultant, after all) but, my rule is that every upgrade disappoints in some way. I always say quickbooks 99 was the high point for intuit. (I am only joking when I say adobe hasn’t been the same since it stopped coming on...

We have nothing but good things to say about GRS. They are very helpful. My neighbor in our industrial park used them for years. (he switchEd from Mutoh to mimaki printers)