Canon MX895 dead

Our MX895 which has performed well since we had it is suddenly dead with no lights. There are 248 VAC at the end of the mains cable so it's not that. I removed the power supply and need a way to get into it. It has a 5-pin connector and 5 blue wires from that go into the machine.
There is also a single white wire which I *think* is meant to connect to a header pin on the board inside the p/s. But: the pin is only accessible at the bottom of a 6 or 7mm wide plastic tube that goes down 2 or 3 cm from the top of the p/s cube to the board. I can push the wire down the tube but it won't connect reliably to the pin.
So either I need to get into the p/s cube or a way of connecting a wire to a header pin at the bottom of a tube.
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On 15/12/16 22:25, Tim Streater wrote:

Slit a drinking straw?
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Adrian C

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wrote:

You don't say whether the printer is normally on standby and whether it's permanently plugged in and the actual sequence of events. Did you unplug it before switching it on again ?
To clear printer ROM its often necessary to physically unplug the machine. Don't ask me why.
Because printers contain moving parts, wires may come loose. Should wires come loose then rather than display an error code maybe the printer will automatically power off.
Possibly the printer will only display an error code when powered up with the ROM cleared, as happened when you disconnected the power supply.
Presumably the white wire must connect to something. You're insufficiently specific about the nature of this wire for anyone to make a sensible suggestion at what this might be.
The pin at the bottom of the tube suggests its intended to house a connector of some kind enabling a feature not enabled on your particular machine or model.
This latest contribution at least provides a refreshing change from your usual displays of incisive intellect in respect of such topics as brexit, the global warming hoax, the deficiencies of Windoze etc etc.etc. Although whether its bears any relation to actual D.I.Y as the term is normally understood is maybe another matter. So near and yet so far.
HTH
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On 15/12/2016 22:25, Tim Streater wrote:

Chances are it is either one of the sensors that allow the printer to know where home is for the cartridge print head or a loose connection somewhere on the moving parts. They tend to shutdown on fault. The chances of a repair being cost effective are slender to none existent but it is worth checking for any cable that has come slightly loose.
Cycling the power with at least five minutes not connected to mains and holding the start? button down might get you a diagnostic error code.
Choose a replacement based on third party clone inks being available. Print quality has further improved on more recent Canon models.
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Regards,
Martin Brown
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It may be that we have been remiss about replacing carts and so the print head has become clogged. Giggling for "canon printer b200 error" gives a variety of solutions one of which looks like spending 24 hours to thoroughly clean the print head.

Canon wants me to take the printer to Woking for repair.

Yes, I always use third party inks.

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