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

[jma676]

So, how did you solve the problem?

DCPS: Come on, now I'm curious! :)

Sorry mrwho , since you do not start this thread but...., well is curious about this, so I bother to bring these bulletin to you and the others who responded well in this thread.

This problem with the touch panel also seems to be common in the old DI850/750. appears as an erratic failure,according to some colleagues in the field told me that the problem appear during changes of weather or in high humidity place.

After a while I found one of these bulletin are a good detail of the case.

But more particularly I just wanted to apologize mrwho, you was entangled in a discussion that did not deserve to go ahead, I am not offended with anyone in particular, but you think carefully, all those points Rep P, do not change my prestige in my field, but still wanted to exchange ideas with other technicians, and this is unfortunate.

Good Luck!

The following files decribed this problem in :

bizhub C450, C351
bizhub C352, C300
bizhub C250, C252

GESTETNER - DSm725/DSm730/DSm725e/DSm730e
LANIER - LD225/LD230/LD325/LD330
RICOH - AFICIO 3025/3030/MP 2510/MP 3010
SAVIN - 8025/8030/8025e/8030e

The latter has no relationship with Konica Minolta but may help to understand.

[swerve2005]

Thanks JMA
Having a lot of problems with these at the moment.

[jma676]

well I'm glad it has been useful. Rep power return just a star, it's there on your left below.******

[togrok]

Hello, Is there a generic touch screen that would work with the Konica's? We have many of these machines that are all failing. Thanks, Bob

[jma676]

I do not think this exists .... Carlos!, Try to get reasonable price for replacement in quantity.

or ...... maybe I can spend a tip. but really trust me on this site do not send checks for this.
Anyway, the safest way to solve this is .... replacement.

[togrok]

Hi JMA, Is the free of charge replacement program still available? The replacement is $311.80 at the lowest I have found so far. Who would you get this from? Thanks, Bob

[Stirton.M]

You will need to contact your nearest KM service rep to initiate the replacement of the panel through RMA with service support. mo0651 makes reference to this earlier in the thread, but it is only accessible to an authorized technician. You can provide the info to the tech to help them identify specifically what you are after.

[jma676]

------------------------------------:p-------------------------

[togrok]

Thanks, I will try that.