Canon BJ-30 AC/DC adapter problem

I have to buy a new AC/DC adapter for my Canon BJ-30. The input written on the old one is 13.5V 1.0A.

I have found a "bulk" adapter whose input is 13.8V 800mA. Would it work without killing my printer? Is it safe? Or should I really buy the VERY EXPENSIVE Canon one?
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Check the actual voltage the adapter puts out, usally they vary a few tenth either way. Just make sure they are both either AC or DC output voltage. You need to make sure of this but the difference of 3 tenth of a volt won't make any difference.
If you check the voltage with nothing attached to the adapter you will get a false reading. It will probably be much higher than the label. The adapter has to be under load to get a proper reading. I would not be concerned about about the 13.8 vs the 13.5 volt. I would be concerned about the 800 milliamp (.8 amp)rating. Although adapters are usually rated higher than the actual unit requires 800 is a 20% reduction in the available current. I would try to find one with the 1.0 amp rating. If it is DC make sure the polarity is correct also.

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