HP 82241A charger replacement polarity

[brickviking]

(03-08-2018 10:34 PM)MattiMark Wrote:  I am trying to get a replacement charger for my HP 82240A printer. The specs for the HP 882241A charger says that the voltage should be 9V DC and 1000 mA.
My question is: shall it be positive or negative polarity in the centre?

Thanks in advance,
Matti

I had a quick check of the manual, it doesn't seem to matter, as either 9V-12V AC or DC seems to be acceptable. However, I've looked online at the backplate for a HP 82241A power supply, it appears to output 9V AC, not DC. Others should contribute if they know better information.

(Post 188)