Showing results for 
Show  only  | Search instead for 
Did you mean: 

PIXMA iP4840 detected via USB even though power is off


the problem is that the printer driver does not see the printer and does not want to be installed, but there is a strangeness in the operation of the printer, now I will describe the situation in general, the printer is turned off from the socket and also the usb cable is not connected to the computer and all the printer covers are closed, so I take the printer’s power plug and plug it into the socket ( I don’t press the power button) and I insert the usb cable into the computer and the following happens: a Canon ip4800 series device appears in the device manager, but the fact is that in a fully working printer this should not be the case, that is, the printer should appear only when I press the power button on the printer , but here I have an opinion that the printer’s firmware is damaged and how can it be restored i don’t know, what can you recommend?


(just in case then the service mode works and you can enter it)



Thanks for joining the conversation, ivan3! We appreciate the info, though we need to let you know that the PIXMA iP4840 is not supported by our team here at Canon USA since that printer isn't available in this country.  If you live outside the United States, please click HERE and select your country to find support in your part of the world.  Your fellow Community members are still welcome to offer their advice.

Thanks for choosing Canon!

click here to view the gallery