Canon ir 2550, blue lines on copies - HP LaserJet 4650 Color Printer Manual Duplex & 160Mb Memory

Did U check the drum? How many copies made?Can also be a transfer rolerr,or fixing film in heather

We need more information! By 'prints' do you mean copies of photos? Or from any sheet of A4? Is this a new problem, or is this a new printer?
It may be worth checking you have the correct drivers - is it for Win 7?
http://www.canon.co.uk/Operating_System_Drivers/windows_7_compatibility_office.asp

Try a factory reset. The factory default user and password is 7654321.

Needs deep cleaning do it twice!

dram r d.c.b cheak ur machine

you should cleaning scan and glass

clean your laser unit.

what is your problem?

Canon iR C2380/2550 UFR II

canon photocopey the page is look dark and have line in the madeal of the page