Canon Pixma IP7250 doesn't power on

[AndrewF]

At its 10th year from purchase suddenly the before perfectly working IP7250 hasn't turned on anymore. No LED, no noise or any other sign of life.

- The PSU has been tested and works normally.

- I wanted to try to remove all cartridges and see if something happens, as some people said that this sometimes may work, but the head is parked on the right and doesn't seem moveable "manually" as if there is some kind of head lock mechanism that prevents this, although strangely in a video tutorial I have seen a guy that moved it manually with printer powered off, without any strong resistance, and I haven't clear if it is normal that mine it is locked and there is some trick to unlock it or what else.

Help is appreciated..

 

[PeterBJ]

The printheads in old Canon Printers can fail suddenly without any warnings like bad print quality.

The Canon PSUs rarely fail. In most cases a defective printhead prevents the start up of the printer. See this thread about the interaction between printhead, main board and power supply in Canon printers.

As you cannot turn on the printer, you will have to remove the casing and manually unlock the printhead. Druckerchannel.de has an article about dismantling the iP7250 for changing the ink absorbers. See page 12 for unlocking the printhead, scroll down to "Druckkopfverrigelung lösen" which means "Unlock printhead lock".

You will need a new printhead which is difficult to find. Do only buy from regular dealers of Canon spare parts, not from eBay, Amazon, Alibaba and similar. These printheads are used and cleaned to look like new and are often defective out of the box.

Maybe it is time for a new printer?

​

 

[AndrewF]

The printheads in old Canon Printers can fail suddenly without any warnings like bad print quality.

The Canon PSUs rarely fail. In most cases a defective printhead prevents the start up of the printer. See this thread about the interaction between printhead, main board and power supply in Canon printers.

As you cannot turn on the printer, you will have to remove the casing and manually unlock the printhead. Druckerchannel.de has an article about dismantling the iP7250 for changing the ink absorbers. See page 12 for unlocking the printhead, scroll down to "Druckkopfverrigelung lösen" which means "Unlock printhead lock".

You will need a new printhead which is difficult to find. Do only buy from regular dealers of Canon spare parts, not from eBay, Amazon, Alibaba and similar. These printheads are used and cleaned to look like new and are often defective out of the box.

Maybe it is time for a new printer?

​

Thanks for the reply. I have also considered a new printer but unfortunately I have many spare cartridges that I don't want to lose and seems there isn't any new model with direct label printing and also strangely 9600 x 2400 dpi doesn't appear in specs of newer general purpose lines (with most general purpose printer in similar price reporting 4800 x 1200) and model specifically made for photos are significantly more expensive and with additional inks that would increase maintenance cost.
So I want to try to do the possible to restore this printer without to give up so fast to this planned obsolescence scheme of printers designed to fail and force you to buy another. The weird interaction described in the thread you have linked has already driven me mad before (so I was aware of it), and even worse the way a failed head can cause the logic board fail shows clearly a design made maliciously to cause troubles and make things hard to repair, also it is impossible that Canon engineers haven't considered a protection circuit between printer head and logic board, that would have had a negligible impact on the price avoiding a lot of problems, unless fail at some point discouraging repair was design requirement.