Compatible Toner

Yes, its easy to fill this. Theres free refill instructions at www.uni-kit.com/support.htm
Notice that there are different instructions for the C7115a and the C7115x. The “a” is a low capacity cartridge, and the “x” is a high capacity cartridge.
You need a hole making tool, and the right toner. Uni-Kit #1 toner is designed for this machine and others.

We have a HP c7115a and would like to refill the toner cartridge.  The replacements seem very expensive and we need to save a few bucks.  I believe we just need to make a hole somewhere but not quite sure of the process.