Anyone have this problem? The print starts out fine then runs off the media. A tech told me cleaning the clear strip behind the heads, that worked for a while but now, I can't print anything perfectly straight?:
Get some isopronal alcohol and rub down the encoder strip.
It more than likely needs to be cleaned. It goes from left to right on the printer Iabout 54" long, has thin lines in it). Also, check the sensor that reads this strip. This sensor goes over top of the strip. If you can find the strip, you can find the sensor! Dust can really cause some major issues with them. If it is dirty, it won't print correctly.
It may need to be replaced - but try cleaning first.
Get a flashlight and look around - I bet you can find some dust in places you didn't know existed, and can cause problems.
It's almost for certain the sensor strip. They are $225.00. But....before you do that, take it out and very, very carefully clean it with Isopropyl alcohol. Do not use denatured alcohol!
Clean it both sides with a really soft white cloth. Replace it. If it doesn't improve dramatically, then it's probably the sensor. It may simply be dusty. Blow it off with canned air.
Finally, the carriage cable has to be set to 11 lbs. tension. It's fourteen from the factory, but they wear in and finally settle at about 11. Ours was getting saggy, down to seven I think the tech said. That is probably not your problem. But if you're going to have a tech out, then definetly have him tension it. (takes special knowhow and tools, I think)