what is the model number of the adapter and what do you expect it to do?
most ipads would already have blue tooth.
the pixma ip100 does not come with blue tooth but you can use a blue tooth adapter. However it must be a specific one designed for the printer. There are a lot of blue tooth adapters that are designed for use in a computer. These will not work
The cannon Bu-30 blue tooth adapter will work
this page has instructions on how to set it up
Once the blue tooth is working on the printer you should be able to pair to it and print to it using the instructions on this page