Problem after remanufacturing

[awais_rauf]

I used instructions from various online instructions to re-manufacture Q2613X cartridge for Hp laserjet 1300. I managed to open up and refill the toner hopper. But when i put the cartridge back and printed a test page it was nothing more than a lot of thick dark lines running horizontally. I have scanned a printed page it is hosted on:



Please tell me where the problem lies.

 

[Simon R.]

Isn't it possible to be a drum problem?