Jennifer (before getting her costume to be Phantom Lady) is captured by some criminals. They chain her and then hang her upside down all night.
The criminal family she is after killed her parents when she was young
Head KO.
A young woman is caught snooping around and is knocked out with a blackjack!
Source: http://distresseddamsels.files.wordpress.com/2012/03/mystic-003-001.jpg
Starfire's troubles are just beginning, as in the follow-up issue, her sister opts to sell her to the highest bidder at an intergallactic auction...her efforts to escape her fate leads to a while issue worth of knockouts and bondage...
Source: blog
For a seven foot tall orange girl with no eyeballs, Princess Korriand'r was doing pretty well for herself on Earth. A job as a top model. An exclusive penthouse in Titans Tower..even a hunky teen-hero boyfriend (Robin/Nightwing)...everything was just peachy...UNTIL, her cruel, evil older sister Kommandd'r returned to...
In this bondage scene rebels have occupied a Drow palace and taken the daughter of the local queen hostage. Some decent shots of her gagged. Caution regarding the gore in the second picture.
Source: www.drowtales.com
Not quite a K.O. but close. The character Syphile is trying to corrupt her younger sister, only to be stopped by their elder sister. I love the eyework and that she goes limp after getting grabbed.
Source: www.drowtales.com
While I wish these scans were bigger, some early-80's classic ko's from the genius of George Perez. Here, Wonder Girl, Raven and Robin get pretty much owned by the evil Brother Blood...
Source: blog
Sheena hit with a gas bomb that causes temporary blindness...in a panel from 'The Hawk', Scarlet gets ko'd by unknown method...still, a nice drawing in the Baker style.
Source: Digital Comic Museum
Power Girl tries to communicate with the aliens. The aliens don't understand and attach a cable to her forehead which doesn't really knock her out (we'll know for sure in the next issue), but her brain goes into overload.
In the June 1977 issue, the Grim Reaper KOs the Scarlet Witch, along with some of her comrades-in-arms, with a blast from his scythe, and holds them in quasi-bondage with some energy-induction bands placed upon their wrists. When the interrogation session doesn't go the way he envisioned, he knocks them unconscious aga...