Canon np 1010 copier

There is a Drum UNIT for your machine that I think is User friendly. Just order the Canon Brand, and if the unit is User Friendly, they place instructions on how to replace it in your machine. Your best bet is to find a company online that has a Canon Brand Drum unit in stock, and also a toll free phone number, and when you call them up, ask them if the drum unit is User Friendly (Customer Replaceable) if so, then order the drum unit (not just the drum by itself, but the unit is recommended) and replace the unit. This should take care of the line problem that you are having.

IF you want to be sure about the lines on the drum, get a flashlight and look inside the machine and on the drum. After making a copy and having lines show up on your copy, turn the machine off, open the front door, and machine. Look inside with a flashlight by the drum. If you see lines on the drum, then you know the problem is in the drum unit.
Hope this helps.
FYI, Canon Drum units on a couple sites goes for 95.00 - 125.00.
Good luck.