I think I killed my spare printer.

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thenh813

thenh813

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So, I put a new cartridge into my PhotoSmart D110A and printed something. The carriage started moving back and forward like normal but the page was blank. I looked at the printer and the screen was all white and the X button was lit up. I have taken good care of it and it had recieved no abuse at all. Upon taking out the new cartridge I noticed that it was for the wrong printer and incompatable with this printer. Usually if this happens (had done it one other time) it displays INCOMPATABLE CARTRIDGE REMOVE IT AND RESET THE PRINTER in all caps or something similar to that. Curiuosly the pins on the cartridge are in the same places as the one I replaced so it couldnt have shorted something. I tried resetting the Power Supply, shorting a jumper on the curcuit board which deletes the NVRAM, unplugging the WIFI card Scanner ribbon cable and reseting (this worked for a friend's printer I fixed to get it to boot again) so it would display scanner error and no WIFI then powering off and reconnecting them. I tried countless other things and nothing works. The other color printer upstairs died (the clutch did not engage so it destroyed a couple of its gears when pulling a page in) so I got the spare out and put a new cartridge in and then im like WTF?!?!?! it just locked up and wont power on!!! I am completely lost right now, did I really kill it?
 
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thenh813

thenh813

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Tried with no cartridges and with the right ones and in cartridge backup mode with either cartridge removed and the other in (when only one of the two inserted it reverts to greyscale or uses only color). I noticed that the switching transistors on its PCB get close to 85C I wonder if something fried and shorted. Also something is bringing the +30V down to +25V. Sigh... I guess its dead then. Unless there is some sort of magic reset to undo some sort of lockout caused by the wrong cartridge and that low of a voltage drop is normal. Searching the internet gives nothing and dont even think of telling me to ask HP LOL.
 
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thenh813

thenh813

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Heres a picture of the pins (scanned with my FlatBed scanner and edited with MSPaint).

I can usually tell apart by the pins but I guess not this time!
I thought they used different pin arrangements and shapes of cartridge case
so that they couldnt fit in other printers.
 
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thenh813

thenh813

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Thanks alot for trying to help,
If I really have to I could probabally JTAG the ARM processor and see if it
lives and only the display dosent work.

I can use my DeskJet 660C on my PC if I had to but it gets 4PPM although it prints very good
quality. The printer in question I gave to my parents and the other family members use.
I guess they will just have to use the Networked Brother HL-5240 and deal with
only being able to print in 256 Color B&W. I could try the PCB from a very the similar Printer I
scrapped for parts after it ground its gears. All the ribbons have the same number of pins
and that just might be crazy enough to work got nothing to lose anyway.
I always used my Deskjet for Pictures and the Brother HL-5240 which is in the hallway
to print text and web pages which is what I usually use. Surprisingly the Brother was broken
when I got it for free and it only needed a new fuser and drum, the toner was nearly full.
Shame the owner threw it out. I guess Il be printing all the color stuff very slowly for others if
I have to LOL.
 
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thenh813

thenh813

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OMG the board swap worked!!! I swear that the boards were identical except the one didnt have the WIFI card plugged into it. Hmmm... Very interesting... I wonder if the boards are nearly universal between models.
 
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thenh813

thenh813

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Just checked on the internet, all the PhotoSmarts have the same board or pin compatable ones.
I guess it is universal for that series. The printer I got it from is broke anyway so I wont be missing it anyway. I probabally should just buy another board from ebay like you said incase somethig like this were to happen again. Thanks for helping me! Now which one of your posts will I mark as best answer.... Hmmmmm.....

I just cant believe this worked though, its not a a regular PC
where you can swap MBs no problem (provided the CPU sockets match).
 
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