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Sp-300 not printing after head replacement
Hello Everybody,
I am using Roland Versacamm SP-300V which is 3 years old. I have manually removed the heads for cleaning already two or three times, but when I did it two days ago the printer didn’t want to print. Here is what I did and what happened:
After I switched off the power removed both heads, cleaned them with solvent cleaner and then put them back. After this I made cap alignment, thermistor check and when I went to head alignment I saw that the black/cyan head is not printing. Tried to pump up ink and head cleanings – there was ink in the head, but it was not printing. Changed the flexible cables between the two heads, but there was no difference. Then I changed the cables that are coming from the board and put the flexible cables that were going in the magenta/yellow head into cyan/black and it was printing only black now. That should mean that the head is OK. Then I removed the board to have a closer look, I supposed that the problem is in it, but saw nothing wrong and put it back. And after this the yellow/magenta head also stopped. On the main board there are two fuses:f2 and f3, both were blown, I changed them and the Y/M head started to print again, but the B/C head didn’t – the fuse was blown away again, it blows every time I switch on the machine.
I called the techs, but they told me that have to see the printer first, now they have a lot of work, and can come to my town next month.
If you have any idea why the fuses blow and where is the problem, I will be very grateful. -
6 Replies
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Try switching on the machine with the cables to the suspect head disconnected. If the fuse blows then you have done some damage to the board and it will probably need replaced unless you know someone that does component level repairs and has access to circuit diagrams. If the fuse is OK then the problem probably lies with the head or the cabling, I say probably because it’s still not 100%. That will probably entail a new head.
I know it’s expensive to get engineers in to do these jobs but this is what happens when you don’t. Could be a million reasons why this has happened this time and not before or maybe the head was faulty to start with. -
dear nikelson
i think the problem from the head maybe when you cleaned it with solvent, some solvent drops damaged the circuit board that attached on the head.
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I found a transistor that is down and ordered it, this transistors blows the fuse. Tomorrow will find out if this is the only part for changing. But what bothers me is why the transistor failed?
Ebrahim.Alqasimi – if there was problem with the head I think it shouldn’t work when I connect it to the other port.
Martin, yes I switched it with the cables disconnected and the fuse went down, that’s how I found that the problem is on the board – the transistor.
Thanks for helping, if any other ideas occur – you are welcome. -
dear nikelson
yes you are right. thank you for your advice. -
Just found another transistor that is down: 2sc4131
I can’t find it anywhere in Bulgaria.
Does any one knows where can I find it from? -
RS Components have a world wide service and should be able to supply the transistors you need.
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