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FYI, you have this thread going in 2 forums. Please pick and use one forum, preferably the Roland forum, so things don't get confused or missed...

FYI, you have this thread going in 2 forums. Please pick and use one forum, preferably the Roland forum, so things don't get confused or missed...

Print until the black banding is really bad. Then - without doing a cleaning cycle - immediately do a nozzle test print and post it please.

OK, just to be clear - the sequence of alignments should be - in service mode - bias, vertical - go back and forth between these 2 until they are both perfect and you don't have to make any adjustments, as they are mechanical and one can affect the other. Then, still in service mode, do the...

Vastly improved! Questions... Did you also do the bi-directional alignment in user mode? And what resolution was the last sample printed at? Looks grainy...

Excellent! FYI, the transistor is located next to the fuses, if you haven't located it yet. It going bad would certainly cause all the heads to stop firing - see attached circuit diagram. Definitely putting that one in my memory banks! Appears to readily available and under $10. Would you post a...

Yep! I actually use both, like damonCA21 said, the spray for the bearing blocks and tight spaces, but I prefer the grease for the rails, so I don't have overspray issue.

Nah, no reason to feel dumb. You can use a lightweight machine like 3in1. I prefer the lithium grease as it doesn't run and won't dry out like oil will. I would go ahead and clean the rail and use what you have for now and see if it fixes the issue. You can always redo it with lithium grease...

Clean the guide rails thoroughly with a clean cloth and alcohol. Then lightly lube the rails with white lithium grease. Move the cut carriage and the printhead carriage back and forth the entire length of the printer 8-10 time to distribute the grease into the bearings. Wipe any excess grease...

Agreed. billr801 - if your old PC is still running, just create a PrnInst file under File-Manage Printers. You should do this as a matter of course anyway, as well as creating OML files and storing them on a flash drive in case of disasters.

That doesn't sound right. Do you have your original Thrive 18 install dongle? What was the reason they gave you? I've used Onyx for over 20 years and as long as your operating system is supported, you should be able to install it, you just have to have the install software and hardware key. I've...

Ok, thanks for the update.

Thank you for the update. Keep in mind, the SP-300V is still a solid printer and has value if repaired or as a parts machine, especially the electronics.

No, it would only affect the head on that channel. But, in the interest of technical thoroughness, we check everything. And usually, the transistors short out, blowing the fuse. Leaning toward the carriage board, also. It's a problem affecting both heads, so the problem is likely to be at a...

Are your dampers OEM or aftermarket? This behavior appears to be ink starvation.

FYI, the output transistors are 8 gray transistors mounted on the 2 upright silver heat sinks.

It seems like one of your yellow dampers is either not full enough or is failing. I would suggest doing a single choke clean. It is in the service menu under the sub menu.

This is true for the SP-300. He has the SP-300i printer. Head carriage design is different, and the cables are routed differently. I verified the length in the service manual. 330 mm.

If the dampers for the black/cyan head are older dampers, you should replace them as well. The O-rings in the bottom of the dampers have a tendency to enlarge over time and result in an air leak when placed on a new head. If you don't know this, it will drive you crazy trying to find it. If you...

Suggest turning the printer off with both power switches and unplug for 15 minutes. Restatrt and see if that does the trick...