Canon MP550 from Trash with B200 Error problem

[stratman]

I have made a test with a timing strip from a defunct iP4000. I have tried cleaning it with pharmacists cleaning solution, Ajax window cleaner with ammonia, denatured ethanol 93% and a thinner for epoxy paints that contains approximately 3 parts Xylene to 1 part of Butanol.

Pharmacists cleaning solution and the Ajax window cleaner worked well and didn't damage the strip. The alcohol and the paint thinner didn't damage the strip, but were not effective in cleaning ink mist off the strip. This is to be expected as the inks used in the printer are water based.

Here is a section of the timing strip that has been subject to all 4 cleaners. It can be seen that the vertical striping is not damaged, so I can also recommend pharmacists cleaning solution and the Ajax for this purpose.

Canon service manuals recommend the use of isopropyl alcohol to clean the timing strip or timing disk if they should be accidentally stained with lubricating grease, so alcohol should be harmless. But a water based cleaner works better for removing ink in my opinion.

Excellent information! You are the Niels Henrik David Bohr (born and educated in Copenhagen, Denmark like you?) of printer gurus. Thank you.

 

[The Hat]

So professor @stratman this mean we can call him professor @PeterBJ too..

 

[stratman]

So professor @stratman this mean we can call him professor @PeterBJ too..

Absolutely positively.

And you, my dear The Hat, will receive Emeritus status!

 

[The Hat]

That one is ok with me so long as you don’t add posthumous to it also…

 

[Łukasz]

This is why I usually take off the encoder strip before cleaning purge unit. The encoder strip is too easy to accidentally dirt with ink. Ink is much harder to remove than grease.

Some windows cleaners can clean these pads pretty well.
Capping gasket and its plates (made with odd anti-adhesive plastic) can be removed and cleaned in small medication container(?).

Ł.

 

[stratman]

That one is ok with me so long as you don’t add posthumous to it also…

Sure. Just keep your posts humorous.

 

[zepat]

back again... did clean up the encode strip and the carriage wheel with pharmacist solution and got a lot of dirt away.
Amazing...
Put some solution on the pad again and the black ink one kept the ink on top of it like the color one (am I clear enough??)
I left the printhead for 24 hours in a "Pharmacist" solution bath...
Some drops from Isopropyl alcohol... on top of it for 2 hours...Left in the sun drying out for 6 hours.
Than left on the shadow for 2~3 hours to cool down than I set up everything together again and put Original cart refilled with top technique and sealed with aluminium tape and
press the power button...
IT WORKED OUT!!!
No B200 Error anymore.
1000 + 1 THANKS to the wise advices from PeterBJ
He's definitly the TOP MASTER!!
Maybe God knocked at his door once...???

 

[Łukasz]

Zepat has unbelievable luck!

 

[zepat]

Being lucky while searching for solutions is always a great feeling...without help from you guys "Luck" would be a term bannished from my language I would have probably reacted as millions peoples do daily...bringing gear to trash...
Thanks one more to all of you.

 

[The Hat]

Beautiful @zepat, just beautiful..