Error b200 on canon pixma mx725

tupakhuisa

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Hi everybody,
I have a canon pixma mx725 printer but a couples of day ago, it showed me the frightening error b200. I still use it for the scanner by bypassing the error with a trick I've seen on youtube during the boot but when I try to print something, it showed me the B200 error. I've clean the printhead multiple times but it changes nothing.
I have seen on the forum that some of you use a technique were you cover some of the pins of the printerhead but I don't know wich one to cover so I'm asking for your help. Maybe one of you had the same issue with this printer model. From what i've seen on internet the model is "QY6-0086" but i'm not sure. I join some picture of the printhead.
Thanks in advance for your responses
 

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tupakhuisa

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Thnaks for the advice, Here is the number so we can see it's a QY6-0086


IMG_20210911_165903.jpg
 

stratman

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Welcome to the forum, tupakhuisa.

I still use it for the scanner by bypassing the error with a trick I've seen on youtube during the boot
Link please.
 

Ink stained Fingers

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I've clean the printhead multiple times but it changes nothing.
I have seen on the forum that some of you use a technique were you cover some of the pins of the printerhead
The B200 error typically indicates a technical failure of the printhead , you can replace it with a new one or look for an replacement for your printer. Yes, there are remedies floating around on the internet taping over some contacts or cutting a track here and there on the contact board, but they either don't last long or are ineffective from the beginning
 

tupakhuisa

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Thanks a lot!! I can print with it now with this technique. The only downside us that the PGBK cartridge does not work but if I print in photo mode, it uses the other black cartridge. Do you think it's possible to make the PGBK cartridge work again or I will always have to print in photo mode to have black ink?
 

Ink stained Fingers

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Do you think it's possible to make the PGBK cartridge work again or I will always have to print in photo mode to have black ink?
The fix with the tape per YT video just interrupts the transmission of the error signal to the firmware but does not repair the actual failure of the black nozzles to any extend, it just let you use the photo black channel until that one fails as well from heavier use.
I have seen these printheads failing different ways - e.g. starting to smoke or killing the main board altogether and killing a new printhead as well which you intended to replace for the defect one. Other people try to replace a chip in the printhead or buy a refurbished printhead from China with questionable results.
 
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