Display gone mad. bizhub C450

[lrockett]

Re: Display gone mad. bizhub C450

alright, display suddenly goes mad and move it's touch dot like 4 cm to right .. it has nothing to do with that touch panel adj,cos machine works fine right after turning it on.

what could possibly solve this problem?

yesterday,iv been sitting on computer ,and machine suddenly woke up from power save mode ,without beein touched,and gave me error c-f023 .. i dont know if this has something to do with display but,consider it...

I had a similar problem with my machine. The upper part of display worked fine but the bottom half had a touch offset. To touch a button I had to put the finger 2cm above it to work. If this is your case the problem is with the touch panel. Specifically a conection problem on the cable. There is a KM technical bulletin about it. The problem is very common.

[sbus]

Re: Display gone mad. bizhub C450

You probably just need to replace the touch panel itself. That's what the last C450 I worked on had - you couldn't calibrate the touch panel; it was always 'off'. Turns out that there was a TSB about touch panels delaminating due to a defect in the glue used to hold them together. You can buy a replacement touch panel on eBay for $75.