Dreaded P07/5B00 message on Canon Pixma MP499

[PeterBJ]

Yes sadly the "printhead not recognized" error message also means the printhead is defective.

 

[zepat]

have you ever tried to fix it?
What kind of problem could it be?

 

[PeterBJ]

It is an electronic failure of the printhead and it cannot be repaired. The only cure is a new printhead.

But beware. When a Canon printhead fails electronically it can but does not always damage the logic board. A damaged logic board will not function properly and might even damage a new printhead.

So replacing Canon printheads is a gamble, and sadly I cannot tell the odds for success.

In many Canon service manuals it is recommended that both the printhead and the logic board are replaced at the same time.

 

[zepat]

It is an electronic failure of the printhead and it cannot be repaired. The only cure is a new printhead.

But beware. When a Canon printhead fails electronically it can but does not always damage the logic board. A damaged logic board will not function properly and might even damage a new printhead.

So replacing Canon printheads is a gamble, and sadly I cannot tell the odds for success.

In many Canon service manuals it is recommended that both the printhead and the logic board are replaced at the same time.

Amazing... What a mess!!

 

[The Hat]

I totaly took the Purge Unit out of the Printer and dissassambled to clean it manualy, pieces by pieces.

For such a small printer that’s a mighty big purge unit, the complete Pro 9500 purge unit was tiny compared, and only needed 3 screws to remove.

Great photos and well done..

 

[zepat]

For such a small printer that’s a mighty big purge unit, the complete Pro 9500 purge unit was tiny compared, and only needed 3 screws to remove.

Great photos and well done..

View attachment 13824View attachment 13823View attachment 13825

Thank you The Hat.
It tooks me a lot of time... but time is not money in that case. I learned for Free!!!