I haven't experienced any previous problems with the printer, it's always worked great even after it (unexpectedly) sat in storage for a year with the printhead and carts in place. Since then I've been using it and it's been just fine. So I tried to turn it on the other day and it did nothing... no light, no sounds. I did the obvious stuff: checked the wall outlet then swapped out the power cord; I even checked the voltage coming out of the power cord. I swapped out the power unit inside the printer. No luck. So I started looking online for suggestions and found all sorts of suggestions about things to do with the power and resume buttons, and I've tried them all with no luck. But I also saw a couple mentions of the printhead being the possible culprit, so I've decided to try changing that but of course it won't move because it's locked up inside the printer where I can't access it. And so far I haven't been able to get the right side panel off so I could unlock the printhead, but I did find a post just a few minutes ago with a couple photos that may help me do that. So I'm going to try that, but in the meantime, does anyone have any other suggestions about why the printer won't power on?
Canon Pro-100 won't power on
- Thread starter jjohnl
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Canon printheads can fail suddenly without any warning. A printer might stop in the middle of a print job or refuse to turn on even if the was OK when turned off after the last print job.
See this post about the interaction between the power supply, the logic board and the printhead.
When a Canon printhead fails there is a risk that it damages the logic board. A logic board damaged in this way might damage a new printhead. So replacing a Canon printhead without also replacing the logic board is a gamble.
See this thread about this risk.
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I understand. But I already have a new printhead and replacing it is easy. I don't have the logic board and even if I did I'm not up for replacing it. But thanks for the reply.
I can relate.
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Next question.
The printhead is out and it still doesn't do anything; i thought I had read that I would get an error of some kind but that it would come to life (light, sound, something). Am I wrong about that or does that mean the printhead isn't the problem? Thanks again.
The printhead is out and it still doesn't do anything; i thought I had read that I would get an error of some kind but that it would come to life (light, sound, something). Am I wrong about that or does that mean the printhead isn't the problem? Thanks again.
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If a defective printhead prevented the power on the printer should power on with the printhead removed, but with an error message about a missing printhead. Failing to do so means the logic board and/or the power supply is defective. This doesn't rule out that the printhead is also defective though.
I don't know how to test the logic board, but here is how a Canon power supply can be tested. The voltages and number of pins in the connector is probably different from the one used in the MP610 though.
I think the power switch is a simple push button switch connected to the logic board like on other Canon printers. You could verify its function with the continuity test function on a DMM. If you are very lucky a defective switch is the cause of the problems.
I don't know how to test the logic board, but here is how a Canon power supply can be tested. The voltages and number of pins in the connector is probably different from the one used in the MP610 though.
I think the power switch is a simple push button switch connected to the logic board like on other Canon printers. You could verify its function with the continuity test function on a DMM. If you are very lucky a defective switch is the cause of the problems.
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Yes, I would love for it to be the switch! I replaced the power supply early on. I'm trying to figure out how to get to the power switch, but even with the side panel removed it's not intuitive. The posts I'm finding about it show the side panel and switch panel already taken apart, but not how to get them apart.
