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Just curious if anybody else has had this issue with any of the i-models (See included video). This example is from a 451i, fresh out of the box. It worked fine for a couple of days in our office while we were setting is up, testing it, and preparing for delivery. We came in on Monday morning and the screen was freaking out. Rebooted copier and all was good again for a few hours, then back to scramble city again.
At this point, rebooting no longer helps. It boots with a completely black screen. Shortly after booting the screen starts to slowly come back, but again, nothing but scrambled video. The touch portion of the panel works perfectly and responds to touching as it should, acting upon the touch as if the display was fine and taking you to whatever it is you are touching. All functions of the machine work perfectly except the visual portion of the control panel.
Troubleshooting steps taken so far have been:
1) tried a different control panel, same issue.
2) tried a different cable, same issue.
3) tried the control panel from the problem machine on a different machine and screen worked fine.
The problem does not appear to be the screen or the cable, but something with the Base Board or possibly CPU Board. Konica Support currently has us replacing the Base Board, so we are waiting on this to come in at the moment.
On a side note, we also have a C301i that seems to be having the same issue. We haven't actually seen it happen yet, but based on the customer's description, it is leading us to believe that the problem is the same but more intermittent. The C301i has been at the customer's site for a couple of months now.
A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...
Interesting, not a single person experiencing this besides us... ?
Anyway, an update to this. We replaced the Base Board, on the advice of the KM support portal, with the only change being now the original control panel produces just plain old black display (backlight is on). Touch still works as expect, just no video output. Trying another control panel with the new Base Board results in video output, but with a glitchy screen whenever you touch or drag your finger one the touch panel.
We are still waiting on a response from KM support, but I'm leaning towards the CPU Board at this point, with possibly even a control panel issue now that wasn't there before.
A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...
Interesting, not a single person experiencing this besides us... ?
Anyway, an update to this. We replaced the Base Board, on the advice of the KM support portal, with the only change being now the original control panel produces just plain old black display (backlight is on). Touch still works as expect, just no video output. Trying another control panel with the new Base Board results in video output, but with a glitchy screen whenever you touch or drag your finger one the touch panel.
We are still waiting on a response from KM support, but I'm leaning towards the CPU Board at this point, with possibly even a control panel issue now that wasn't there before.
Interesting your topic shows up just now instead of one week ago...
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
If you have another machine close by you could put the machines back to back and plug up suspect panel to working machine and vise versa without removing the screens.
I'm thinking once I saw bulletin about scrambled display pointing to CPUB as culprit. The thing is I just can't find it ?
I'm highly doubtful to suspect base board on i series for anything wrong and think tech support mislead you.
However I'm sure there was some batch with bad touch panels about 2-3 years before and KM had came up with jig FW against it.
Let me know if you need it.
I'm sorry couldn't be more of help.
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
If you have another machine close by you could put the machines back to back and plug up suspect panel to working machine and vise versa without removing the screens.
Thanks for the thoughts on that. I had already done that during initial testing, both directions actually, as stated in my first post. Screen from known good copier plugged into bad copier was also scrambled. Screen from good copier and alternate known working cable into bad copier, still scrambled. Also tried plugging the screen from the scrambled copier into a known good machine and screen from the bad copier worked fine.
I did the screen dance again as stated in my second post. Only variance from before and after Base Board replacement was that the screen in the bad copier is now just black instead of scrambled and glitchy.
A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...
I'm thinking once I saw bulletin about scrambled display pointing to CPUB as culprit. The thing is I just can't find it ?
I'm highly doubtful to suspect base board on i series for anything wrong and think tech support mislead you.
However I'm sure there was some batch with bad touch panels about 2-3 years before and KM had came up with jig FW against it.
Let me know if you need it.
I'm sorry couldn't be more of help.
I think I know what you are referring to. There was a firmware update specifically for the touch panels in some of the 0i models as the touch screen would lock up and become unresponsive. Since this is a newer 1i model, I would certainly hope that wouldn't be the case.
Honestly, I'm pretty sure you are correct in that they lead me down the wrong path with the Base Board replacement. There isn't a whole lot on the Base Boards any more, aside from sensor and motor control. The majority of all the "work" is done on the CPU board these days.
A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...
There is a USB cable that runs from the back of the display to a junction of I remember right. I would first replace that cable and then the screen. You should be able to plug in any other screen for testing purposes to see if you get the scrambling. If you do, then you can rule out the screen's boards. If it scrambles with a different screen (C3350i series or the i series bigger machines) then I would start looking at the cpub myself.
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
Well that was bulletin I red but couldn't find. Thanks for refreshing my memories.
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
There is a USB cable that runs from the back of the display to a junction of I remember right. I would first replace that cable and then the screen. You should be able to plug in any other screen for testing purposes to see if you get the scrambling. If you do, then you can rule out the screen's boards. If it scrambles with a different screen (C3350i series or the i series bigger machines) then I would start looking at the cpub myself.
Yeah, have tried alternate cable and screen with same (or very similar) results. CPU Board is my next guess for this, but I'm waiting on support to actually say it in the support request. If it turns out that doesn't fix it, I want to be able to return it and get full credit and not have to eat the cost of it since I can select on the Advanced Exchange request that it was suggested by KM support.
A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 4 years.
My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...
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