Printer error message b8142b84 - HP PSC 950 All-In-One InkJet Printer

Diagnosing the Problem - Epson

https://files.support.epson.com/htmldocs/rx620_/.../trble_1.htm
EpsonAn error has occurred in the printer parts. Turn this product off, and then back on. If theerror message still appears, contact your dealer. Scanner error occurred.

Epson printer sx415 printing problems/paper jam - Forum Thread ...

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Jun 30, 2010 - Epson printer sx415 printing problems/paper jam ... before it will work correctly again otherwise you will continue to get the error message.

it sounds as if this will be a problem with a board and you will need to have it replaced

Hi,
This seems to be hardware issue. Try removing the cartridges and clean the electrical contacts ( golden dots ) and reinstall.
If this does not work, i doubt it must be mechanical issue. Try contacting HP Support on 1-800-474-6836 (US Support )
Also you can try to unplug the power cable from back of the printer ( printer should be on ) then press and hold the cancel + Power button and reconnect the power cable and release the buttons after 2-3 seconds.

Regards,
Sean

Hi,At printer start, receive the following message: PRINTER ERROR 54.18. According to the HP error code message reference, this is a black cartridge sensor malfunction. Cleaned the sensor contacts, replaced the cartridge and rebooted; same error. Is there another fix for this?

Thanks for using fixya.....

1. Power off your printer.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the printer on. The print cartridge carrier moves and stops at the loading position, unless the printer is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
   If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.

Hope this helps.

1. Lower the scanner unit until it is completely closed.
2. If you receive the error message again, replace both cartridges.

general error 
see your printer 
ducumenation for information about clearing the error

The b8142b84 error isn't documented by HP, but you should check your voltage to the printer. Move the printer to another room and plug it in to see if you still get the "turn printer on/off" message. If printer power up fine in another room, you have a bad outlet, or surge protector at its original location.


Solution to try for the cofo401 is found here:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00034909&lc=en&dlc=en&cc=us&lang=en&rule=21439&product=60259

GO ONLINE AND TYPE IN

CANON 850i PRINTER ERROR MESSAGE 5100

ENTER

ROD

What is the error message? SCANNER ERROR?
If that is what you getting, turn printer off then open scanner cover- on the left hand side there is a toggle log for scanner, position it to unlock then turn printer on then try scanning/copying again.

if your having a different error message pls indicate the exact error that you are getting.

Try to find anything that prevents the printer form moving the paper or print head. If everything is fine try reinstalling the printer driver.

 

If that does'nt work... get your printer serviced.