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There just was a message from Summa about a new firmware addressing an issue like this. You need to wait for the HP to release this update...

Looks like your parameters got lost. You can get the factory backup from summa.com and restore them on your unit.

No

If you print on the belt all the time, it can clog the vacuum holes on the table in the long run. In this case, the belt needs to be removed to clean the vacuum table and holes.

I just got the answer from Roland... This function is only supported on print-only devices in Versaworks...(they do it, because print-cut jobs would be off otherwise...) So you need to design your prints longer by a correction factor.

To upgrade the FW, you need HP CutterControl and HP firmware. Your problem sounds like dirt on the sensor, or a broken sensor.

This is also normal behaviour. The printheads have a fixed dot distance like 180 DPI. The media is heated in the print zone and expands. After it's printed it shrinks back a little, when it cools down to room temp. There should be a size correction setting and calculator in the printer settings...

The heads are touching the media. Use the media guides or set the heads higher.

You didn't shake the cartridges... Activate the shake alert in the machines submenu for the future. For the moment, got to media explorer in Versaworks and tick the 7c media settings to be visible. Then it will print without orange. (Only if you select the 7c mode later...) Depending on how long...

There is no driver. Versaworks (and other Rips) print directly to the network address on port 9100.

The VSi are nice printers. I'd replace the captop first.

This is normal. Reinstallatin won't change a thing. Tick use primary colors.

The paper sensor or the reflective strip on the print platen might be dirty.

If the printer has lots of if prints on it, look at the belt pulleys, as their theeth can get filled up with ink spray and dust, causing the belt to jump teeth. The other place, a knocking sound can come from is the plasic gear on the right side pulley. (It's a inexpensive part, while pulleys or...

As I already wrote: leave it to the pros, if you don't undersand it... The worst places I have been, are the ones where the customers tried to fix it themselves. (Ink all over the heads, flat cables ruined...) then they wonder why I need to replace head/mainboards for some serious money. Best of...

When the heads were replaced, did the tech also replace the dampers of the latest generation? Try a damper fill.(pause enter during startup) What temperature do you have around the printer? I would also replace the filler sensor on a affected channel.(just to test, it's no big deal) I once had...

For a SP-300i, you should be able to get all the parts for another while (as long, as they last), as it is 10-15 years newer than a SP-300(V), where not all parts are available anymore.(available new from Roland, not some obscure refurbishers from China)

For a SP300, I would not give more than 1000. I wouldn't like to sell it, because if certain parts fail, it will be impossible to fix.(with new parts)

Different modes are only selectable, when they have been created and linearized/profiled.

You have to measure the base-emitter voltage of every driver transistor to find out the defective one/s. If you don't know, what this means, ask someone to fix it for you.(otherwise you will kill the board beyond repair...)