I have had many print heads fail I thought. than a friend who has a sp300 use his syringe and pulled ink , cleaned than it worked after I changed the head. I have changed heads at least three time in 1 year. so possible in the service manual is there a head check for voltage, ohms, and also on the mother board? my magenta and yellow head stop firing again, so to save some funds I am looking for some help . I have changed the capping station. dampers. and pumped up ink , when I try to pull ink threw capping station I get a suction .Paul
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help roland sp300v yellow magenta not firing
- Thread starter blk68rsss
- Start date
CS-SignSupply
New Member
Possible blown head fuse and/or transistor on the Mainboard.
Contact your local dealer for help.
Contact your local dealer for help.
CS-SignSupply
New Member
Hi i had same issue with black. i replaced fuse but popped again - traced to faulty transistor check service manual as it has part numbers and which transistor goes for which head.- i purchased from roland dealer and replaced, also replaced head carriage cables from head to carriage board - problem fixed, saved the big $$ for getting tech in - i live in country side so techs are 4hrs drive away.
why did it happen? - well i was doing a clean and accidently moved the head cable
pm me and i could try give you more info
sam
Transistor Blowing
I am having the same issue. Fuse was blown so soldered on a new one. Fusr blew as soon as sub-power was turned on. Traced problem down to a transistor that was out. Replaced transistor and put another new fuse in, and was able to print one job. On the next job there was no yellow and magenta again. Fuse was blown again and this time it is a different transistor. Anyone know what may cause this to keep blowing? I swapped the cable from the print heads to the carriage board (while all power was off and disconnected) and the same head blew the fuse and transistor. Everything printed fine for the one job I was able to do in between. Any help on what else to check would be greatly appreciated!!
Robb
I am having the same issue. Fuse was blown so soldered on a new one. Fusr blew as soon as sub-power was turned on. Traced problem down to a transistor that was out. Replaced transistor and put another new fuse in, and was able to print one job. On the next job there was no yellow and magenta again. Fuse was blown again and this time it is a different transistor. Anyone know what may cause this to keep blowing? I swapped the cable from the print heads to the carriage board (while all power was off and disconnected) and the same head blew the fuse and transistor. Everything printed fine for the one job I was able to do in between. Any help on what else to check would be greatly appreciated!!
Robb
Replaced the transistor and fuse again, and was able to print continuously for about 2 hours. Transistor and fuse blow one the printer is sitting idle. Re-soldering all these pieces is getting old! Im left to believe the print head is the source of the problems...but that's an expensive thing to test!
hi it is youre ribbon cables thats causing the transistor and fuse to blow, i changed my ribbon cables as advised and haven't had a problem since, the pins get out of line and or ink droplets on cables eats into it and shorts out.
hope this helps