Hi, I have a pro9500 Mark2, because of the B200 error message, I want to reset EEPROM,

Tony4597

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That is a little strange and checking a few other UK ebay sellers the same no shipping to USA. But on eBay.com other sellers will ship but have limits including Canada!
https://www.ebay.com/itm/Printer-Pr...rand=Unbranded&_trksid=p2047675.c101195.m1851

A lot of these sellers are not specialist but have a wide range of goods. Ideally what anyone would want to find is the actual manufacturer and if they would sell direct or name some distributor that would.
It seems to me that the OP's first language is Chinese and although he could be from anywhere in the world he may find it easier to locate a source.
 

user5800

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I have 2 pro9500 mk2, one has b200 error, the other is perfectly working. Can I copy the eeprom content from the good one to the failed one?

Hello jbhtjbht


Every printhead of canon printheads have a eeprom on the back side of the green pcb with the golden contacts. That eeprom got corrupt and you have a B200 error.
reprogramming that eeprom solves the problem.
What you need is the original hexdump of that eeprom.
You can print it out with a ""service tool"" for canon loaded in your PC .
Also set your printer in sevice mode . How to do that for your printer use Google .
This only works on printers who are without any errors.
So I advice everyone to print out the hexdump when your printer is in good condission . Whenever your eeprom got corrupt you can always reprogram that eeprom by a electronic engineer. It is cheaper dan bying a new printhead.
Not only the printhead has a eeprom also the mainboard in de printer has one.
The printout gives also this information.

as I said service tool does not work with a defect printer so you have to buy a new
printhead to solve the B200 problem.
advice :make a printout when printer is without errors and store the printout of the hexdump for later use. You will never know you need it in the future.
 

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Artur5

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The text printed on the box of all Canon printheads that I purchased from reliable vendors says clearly “made in Japan”.. not ‘assembled’ or ‘designed’ but ‘MADE’
Instead, many printers are made abroad. For instance, my current Maxify says “made in Thailand”.
If we take for granted that Canon printheads are really made in China is like saying that Canon lies in capital letters to the consumers. I don’t think that the Japanese authorities would allow that, but I may be wrong.

Error B200 might be due to printhead Eeprom corruption in some instances, but in a high percentage of cases, the problem is that one or more of the semiconductors controlling the firing of the nozzles is burned. Due to the high thermal stress endured by these tiny components it’s logical to expect that some of them fail sooner or later.
On the other part, why should the eeprom of the printhead become corrupted ? ‘Who’ would do that to the poor thing?. If the logic board of the printer is in good working order it won’t damage the printhead. If not, the machine wouldn’t work at all or the error number would be different.
Rewriting the eeprom of the printhead won’t help at all if there’re burned components. It’s worth trying just in case, although chances of success aren’t high.
 

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Anyway, Canon has had long links with China for the manufacture of printers etc.
Canon Inc. do not get their print heads made in China or anywhere else for that matter, they are only made in Japan..

If you come across a Canon print head for sale, especially on EBay, it is most likely refurbished and not new and therefore suspect.. Fool’s Gold.. Caveat Emptor...:eek:
 

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The text printed on the box of all Canon printheads that I purchased from reliable vendors says clearly “made in Japan”.. not ‘assembled’ or ‘designed’ but ‘MADE’
Instead, many printers are made abroad. For instance, my current Maxify says “made in Thailand”.
Same for me as above plus my Maxify OEM cartridge boxes say "Made In Japan".
 

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A couple of years ago I had to replace the printhead in my 9500 Mk II (after letting it go bone dry by mistake). The intervals between "printing sessions" are random so my question if it is possible to put it in "hibernation" between sessions to make it survive. If replacements are unavailable something must be done to keep the printer alive as long as possible. If I remember correctly something like the "Pharmacist Cleaner" in empty cartridges and a deep clean was recommended.

Is this and then sealing it in a vacuum bag (like for sous vide cooking) a reasonable way to go? (or have I missed any important factors here)
 

stratman

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The intervals between "printing sessions" are random so my question if it is possible to put it in "hibernation" between sessions to make it survive.
Pharmacist's suggestion for storing a print head

https://www.printerknowledge.com/threads/how-to-store-a-print-head.6343/#post-47497

You did not specify how long between print jobs. Storage is different from occasional printing. If it's infrequent printing then the best way to maintain the print head is to print something every week or two that uses all the cartridges. This can be a nozzle check.

Using OEM inks has the least risk. Your printer may be able to go longer. I cannot say.

Forum member @mikling, who owns Precision Colors for refilling supplies, claims you may be able to go up to six months without printing when using his inks.

My refilled inks can lay dormant for at least six months and come back alive perfectly PROVIDED the printer hardware is working properly.

Sounds like a warranty but he has not responded to my inquiry on this yet. If you use his inks consider asking him what is best practice to protect the print head / printer when intermittent printing or storage. Also, ask him if he warranties his inks against clogs as he stated on the forum.
 

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My favourite photography club (where exhibtions and competitions are the main reasons for printing) has been dormant for the last year and it will probably take half a year until anything happens. Three months to a full year between print jobs is what I must plan for. I had given strict orders to my braincell to regularly do these maintenance nozzle checks you suggested but it failed miserably and so did the old printhead. I have been using Precision Colors refill inks so far and will continue now that I see that they handle storage well. My plan now is to buy more refill ink and make a set of "preservation" cartridges filled with the stuff from the link you provided. Much appreciated!

... now to the next important task! How to preserve my own head from drying out when in voluntary house arrest.
 

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I have been using Precision Colors refill inks so far and will continue now that I see that they handle storage well.
Unless Mike warranties what he claims then a big YMMV caution for the print head and/or cartridges.
 
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