I love my reliable canon340. However, it has developed lines. I have done all the prescribed fixes

[Searoads]

Cleaned the glass, changed the ink used a credit card to clean the glass etc etc.  One line came out.The other did not.

[Stephen]

Hi Searoads!

So that the Community can help you better, we will need to know exactly which Canon model you're using, any error messages you might be seeing, and the Computer Operating System you're using (Windows XP/Vista/7/8 or Mac 10.x), as well as the way you connect to your device (USB or networked via WiFi or Ethernet).

Any other details you'd like to give will only help the Community better understand your issue!

If this is an urgent support need, please CLICK HERE to reach our friendly Technical Support Team by phone or email.

Thanks and have a great day!

[Searoads]

There are no error messages; use USB cable.  It's a Canon Imageclass D340.  The line is my only issue.  Thank you. Oh, the line is only visible when I use the automatic document feeder, not the glass.