[Misc] Konica minolta c450 front control pannel problem

[maxmax]

Hi
I have konica-minolta bizbub c450.
It doesn't working touch screen pannel.
Both side keypad is work nomal. only touch screen pannel not work.
Please help anyone.

[jackson]

replace the LCD panel they cause problems,, the liquid crystal leaks over time

[mrwho]

Wait just a second. You've got two things: the LCD which draws the image; and the touchscreem which acts as a keyboard accepting input.

If I understand correctly your question, you can't use the touchscreen to do things like selecting paper or magnification or duplex - althought the image on the LCD is fine. If that's the case, you need to either adjust the touchscreen sensitivity (via the Accessibility button on your left) or to replace the touchscreen panel.

Now, the parts manual for the C450 doesn't list a separate part number for the touchscreen, but if I'm not mistaken it is the same used on the C250, which is 4037780701. Maybe someone else can confirm this to you.

[jackson]

Quite right Mrwho , the " touch panel" p/n 4037780701.is at fault , I failed to describe this correctly

[dogsbody]

Now, the parts manual for the C450 doesn't list a separate part number for the touchscreen, but if I'm not mistaken it is the same used on the C250, which is 4037780701. Maybe someone else can confirm this to you.

You are correct, same part number. And I agree, touch panel not the LCD.

[mo0651]

FOC bulletin for this touch panel. part # is9981000367FOC tech bulletin# taus0902331

[maxmax]

Hi
The image on the LCD is ok and the screen changes normally when I use only the keypad.
But the screen is frozen. When I touch the screen with my finger it doesn't work.
I can get the touchscreen adjust sensitivity screen using the keypad but as I explained it can't adjust because the screen is frozen.
Thanks for you tip.

[mrwho]

Well, then definitelly you'll need to get a new touchscreen in there. The part number is listed above.

[firmwareislost]

Why cant they make no more good touch screens ??????

Konicaminolta in Belgium cant follow to replace them (bizhub C 450)

Ricoh has a bunch of machines with bad screens

[DCPS]

I have found a way to repair them with some kind of "special equipment" .

[maxmax]

Thanks for replying, everyone.
This has helped me a lot.

[mrwho]

So, how did you solve the problem?

DCPS: Come on, now I'm curious!

[hondapol]

I managed to fix some too. Its not 100% but better than nothing

[AyJayAreDii]

I managed to fix some too. Its not 100% but better than nothing

well to get by while the new one arrives. Any way you could share how?

[hondapol]

I have warmed several screens by heating them on a convection radiator then pressing along the edges with a cloth while it is still hot.The problem is caused by the glue they used so doing this fixes the connections, only about 70% successful though. good luck