Need Help Roland Truevis VG2-640 - Temp Too High or Temp Too Low Error Code

[OPI_Matt]

Hi,
I'm having a warning that started popping up yesterday (or on Tuesday from the looks of the dashboard logs). Printer: Roland Truevis VG2-640
Here it goes, came in yesterday with the printer beeping, lights flashing, and code that the temperature is too high. I powered it off and restarted, but it did it again. Weird thing is it popped up with temperature is too low. So, I powered it off again and then back up after couple minutes unplugged. It still popped up the code again with high. Also, I notice the temperature comes up showing different degrees. Like for High it’s 70-76 or the low is 0-8. I've looked at the Roland dashboard app and found it shows that the machine started to ping the error on 4/29 at 6:15 pm. Everyone was gone at the shop by then and so no one would of known it was going off. It shows that the error was both “too high” and “too low” at the same time. I've contacted my tech and he has never heard of the printer doing this and is contacting others to find out what might be going on. Did some research, too, but I've only found it's for either one or the other codes. Maybe a cable or bad head. I did look in the printer's cables and heads, but don't see any damage to cables or heads (though I didn't pull all the panels off to make sure). I hope not a head. Just replaced the cyan head back in November. Would like to hear what others might have encountered and how to resolve this?

Thanks,
Matt

 

[damonCA21]

You can't always see cable damage from the outside as they tend to break internally. You can try carefully removing the cables to the head, checking for any damaged pins, and reseating them. Sometimes this is enough to clear errors. If not I would start with replacing the head cables and see if that fixes it

 

[cornholio]

The VG don't have temp sensors in the heads. The temp sensors are on the carriage board and on the carriage(front center, between the filler sensors)

 

[OPI_Matt]

Hi ya'll,
Just thought I'd update on the problem that was happening and what is going on now.
We replaced the thermistor (temp chip in-between the print heads) and replaced the cable for it, too. It still popped up the code. The tech finally came in today to check it out. He checked that they were properly connected and still ran in to the temp high code. Before he started to change out the whole carriage board, he contacted another tech and asked how he should go doing it. The other tech told him to check that the ribbon cables from the main board and carriage board are connected/seated right. So, he unplugs them and plugs them back. It starts working. Do test prints. Everything looked good and he went back to his shop. I start doing calibrations and test prints. First test print it gets 7" into the print and does "Service Call 0008". I messed with this back in January and it was just the ethernet cable. I have several ethernet cables just on hand and just changed it out. Sadly it still did the service call code with the new cable. I've tried connecting directly to the print and looks to be working. It might be the network hub the printer is connected to. I'm going to grab a new one and try that out. If not I'm going to have a talk with our IT of the company.

 

[Jim Hancock]

Can you post a pic of the display showing this error. There are usually 2 four character groups with error codes - xxxx xxxx. The first group directs you to a certain problem area and the second group narrows it down. The reason I ask for the display pic is the 0008 code is associated with the feed motor, the ethernet circuitry and the printheads, depending upon what both groups display.

 

[OPI_Matt]

Here you go.

 

[Jim Hancock]

Thanks for the pic, that narrows it to your previous assumption of possible ethernet issues, except it's internal to the printer. For the feed motor and printhead error codes, there are 2 groups of data, ethernet issues have only one group. I would suggest, with the printer unplugged for a good 15 minutes, unplugging, closely examining and re-plugging in all the cables and wired connections on the main board, servo board and carriage board.