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#1
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planned obsolescence - f.e. Canon MP810
Hi!
I know, this is being talked of nearly everywhere right now, but I'm interested in technical details just now. A couple of months ago our Canon Pixma MP810 instantly stopped working. After a halt to demand a new ink-cartridge and successfully running the the priming-cycle afterwards the printer dropped dead. No Error, no display, no power. I've been unable to power it up at all since then. Many printers show errors in similar cases which can be fixed by running "special" programs. Can it be, that the companies improved their self-desctruct system? A quick search showed a couple of "errors" of this kind on many Canon inkjets. Being mostly a burnt head shorting the mainboard, due to use of 3rd-party ink (so they say). Our MP810 never ever saw other inks than the most expensive ones from Canon and was not under heavy use. So it wasn't our fault. Of course warranty has run out, so there's no econimical reason to revive the printer. Just personal and ecological reasons to deny the fact it's dead. No, I won't shell out $$ to fix it, but I already took it apart to get a closer look on the parts. Nothing burnt, no visible fuses,... Does anyone know how to test if the head is really broken (no, I won't put it into another printer to try ;-) ) I'm pretty sure there's som tiny electronics on the mainboard acting as fuse. Anyone willing to share their ideas? Thanks Chris |
#2
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planned obsolescence - f.e. Canon MP810
Christopher Altmann writes:
Hi! I know, this is being talked of nearly everywhere right now, but I'm interested in technical details just now. A couple of months ago our Canon Pixma MP810 instantly stopped working. After a halt to demand a new ink-cartridge and successfully running the the priming-cycle afterwards the printer dropped dead. No Error, no display, no power. I've been unable to power it up at all since then. Many printers show errors in similar cases which can be fixed by running "special" programs. I had a MP810 where this happened too. Since both the head was broken (known issue) and then the power died after cleaning the head, I sent it to Canon for repairs (fixed cost, 10500 JPY) and therefore got a new system back basically. It seems the MP810 and a couple of others of similar vintage have a bad design, allowing the logic board to trash the head and vice versa. Can it be, that the companies improved their self-desctruct system? A quick search showed a couple of "errors" of this kind on many Canon inkjets. Being mostly a burnt head shorting the mainboard, due to use of 3rd-party ink (so they say). Nothing to do with 3rd-party inks (or the chips used in those, if one is not refilling Canon carts) in my opinion, it is simply bad design. Our MP810 never ever saw other inks than the most expensive ones from Canon and was not under heavy use. So it wasn't our fault. Of course warranty has run out, so there's no econimical reason to revive the printer. Just personal and ecological reasons to deny the fact it's dead. No, I won't shell out $$ to fix it, but I already took it apart to get a closer look on the parts. Nothing burnt, no visible fuses,... Does anyone know how to test if the head is really broken (no, I won't put it into another printer to try ;-) ) Yeah, don't do that... I'm pretty sure there's som tiny electronics on the mainboard acting as fuse. Anyone willing to share their ideas? Check if the power supply is working or not, with a multimeter (on the board side...). -- Gernot Hassenpflug |
#3
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planned obsolescence - f.e. Canon MP810
On 16 Nov 2012 18:10:18 +0900, Gernot Hassenpflug
wrote: [...] Check if the power supply is working or not, with a multimeter (on the board side...). [...] I've already done that, too bad the voltage readings look fine to me. So the fault is presumably in the main board or the power is failing when the board is connected. Well I'll try some more indepth readings later, I'm just glad to know right now, that I'm not alone whis this "special behaviour" of the MP810 (aka "error by design"). Thx Chris |
#4
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planned obsolescence - f.e. Canon MP810
I don't know if you are competent enough to strip the power module down, and look for blown capacitors.... OK this is a mobo but blown capacitors look the same no matter where they are, 'check this link.' (http://home.earthlink.net/~doniteli/index27.htm) I don't know the actual printer but my IP5000 had a module that slid out and unplugged after removing one single screw to release a cover. If it was the print head I'm sure you would see some error code of something pop up, this wouldn't cause any light not to light up too. The voltage may look fine but what about the ripple content due to 'bad caps' which ought to be fairly obvious. No Error, no display, no power Made me think of the power supply..... no harm in looking but knowing my power unit it was enclosed in a plastic case once it was released and it used 'star shaped' screws - not the Philips cross head type! Also modern day fuses come in differing shapes, some are like resistors, their markings would tell them apart, would be worth a check. I tried you have completely removed the power cable for about three minutes or so and tried a reboot to clear the logic circuitry. ' Here is the manual' (http://www.scribd.com/doc/92142000/C...Service-Manual) should you need it which can be downloaded as a pdf. davy |
#5
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planned obsolescence - f.e. Canon MP810
On Sun, 18 Nov 2012 14:30:12 -0600, davy
wrote: I don't know if you are competent enough to strip the power module down, and look for blown capacitors.... OK this is a mobo but blown capacitors [...] Thanks for the hint, detecting blown caps is about as far as I can go, and they seem to look fine. I had a couple of blown caps in some other electronics but they mostly were 3 years old. Everythings looks brand new, no smell or whatsoever. [...] If it was the print head I'm sure you would see some error code of something pop up, this wouldn't cause any light not to light up too. [...] Users all over the I-net say it's the print head killing the MoBo (or some other component) instantly. Some tested the print head in a working printer, which immediately broke down. I don't have a 2nd model but definitely would not try having read that anyway. [...] my power unit it was enclosed in a plastic case once it was released and it used 'star shaped' screws - not the Philips cross head type! Also modern day fuses come in differing shapes, some are like resistors, their markings would tell them apart, would be worth a check. [...] All the same over here, so that's what I'm up to: Identifying the "fuse". Seems I have to dig a little deeper into electronics 101. [...] I tried you have completely removed the power cable for about three minutes or so and tried a reboot to clear the logic circuitry. [...] Yes, of course, and thanks for the manual, I already gathered that in the past to dismantle the printer without breaking any plastics. chris |
#6
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planned obsolescence - f.e. Canon MP810
That's naughty, very naughty print heads blowing main board - not a simple fusible or fusible resistor by chance? Normally when print heads go they show an error code - but as said I don't know the model you have, I did have the IP5000 the best printer I'd say, the purger unit went and I decided to get the IP4950, certainly not a good a printer and expensive on the ink as well! Certainly if that's the case you don't want to be lobbing a suspect head into a working machine. Inkjets nozzles are a bit like mini electric kettles as you probably know. Wonder what the outcome would be in trying a good head in the faulty machine rather than other way around? If it is a 'scrapper' then there's certainly no harm in looking for and checking fuses, fusible resistors are usually low value metal film types... say up to about 10 ohms or so and usually situated on a voltage rail. That trick is naughty, maybe they do it so you have to get a new printer... the profits is in the ink these day's. Wish you well and hope you sort it, do report back if you manage to. davy |
#7
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planned obsolescence - f.e. Canon MP810
thanks for the hints and the heads up, I'll definitely report back.
I will check some auction sites for matching printers in my area for spare parts to swap also. This sure will take a while, but stay tuned ;-) Chris |
#8
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planned obsolescence - f.e. Canon MP810
It's now Jan 2014 and I have been looking for answer to why my canon mP810 all in one printer scanner etc won't work (error message about scan lock). It cost me £200 and was highly recommended by Consumer Assoc. I loved it until it stopped working. I am fed up and am now going to ceremonially hit it hard with a hammer and see what error message it can cook up after that ha ha ha.
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#9
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planned obsolescence - f.e. Canon MP810
From: "unlikely777"
It's now Jan 2014 and I have been looking for answer to why my canon mP810 all in one printer scanner etc won't work (error message about scan lock). It cost me £200 and was highly recommended by Consumer Assoc. I loved it until it stopped working. I am fed up and am now going to ceremonially hit it hard with a hammer and see what error message it can cook up after that ha ha ha. No, it is January 2015 - You are late ! -- Dave Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk http://www.pctipp.ch/downloads/dl/35905.asp |
#10
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planned obsolescence - f.e. Canon MP810
unlikely777 writes:
It's now Jan 2014 and I have been looking for answer to why my canon mP810 all in one printer scanner etc won't work (error message about scan lock). It cost me £200 and was highly recommended by Consumer Assoc. I loved it until it stopped working. I am fed up and am now going to ceremonially hit it hard with a hammer and see what error message it can cook up after that ha ha ha. Maybe that means you have put on the manual scan lock? You could do a lot better than what you have posted so far, by telling us the verbatim error message and the all-important code, and then searching the web for the same and telling us what you found, and where, and how that helped or did not help. I have a MP810 and love it, I had it repaied (fixed-cost repair service by Canon in Japan) for equivalent 110 USD a couple of years ago when the head gave out (the entire logic board was blown) and it is a lovely machine, although the design clearly is flawed (a short-circuited head can easily destroy the logic board). Regards, Gernot Hassenpflug -- NNTP on Emacs 24.3 from Windows 7 |
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