Whups, silly me vs printer

Okay, so I just did a really big dumb.

I went to print an invoice from my iMac to my HP C3180 and it kept
telling me the job was stopped. I'm like, HUH?? Printer turned on,
plugged in, USB plugged into... oh yeah, second monitor. Second
monitor not turned on. Heh.

Without power, the monitor will absolutely refuse to send along USB
signals to any connected peripherals.

So, I pressed the power button on the monitor, and whammo, the
printer eats up a page and spits it out. Ptu.

~w