Sp300v old pump update

[DiS]

I have a old sp300v which Ive had for over 15+ years and now having issues with black nozzle issues after I replaced the printhead
over 14 months ago. I have changed captops for genuine and returned test print to a reasonable result but head returns to bad nozzles after
2 days. As i have the old pump and done lots of pipe checks and syringe pull throughs I'm feeling the pump may be failing to suck any
blocks out of printhead. So I need to change pump for the new version. Before I start looking for the conversion kit can someone
tel me what firmware version is need to change the pump mode in the service menu please - I currently have 6.90. Can you still get the newer
firmware. thanks

 

[damonCA21]

AFAIK you don't need to change the firmware when fitting the new pump. I haven't replaced an old one for years though, but don't remember ever having to do it before.

 

[damonCA21]

As an aside, the one pump works on all heads, so if there is a problem with it, it will effect all of them, not just the black. You need to check things like your captop alignment, It may be ink starvation from a bad damper, or problems with the ink lines or ink cart dock, so you need to rule these out. Have you also replaced the wipers as these can cause problems if they are worn or very dirty.

Pulling with a syringe isn't actually very useful in diagnosing a problem as it uses a lot more force than when the head is printing

 

[DiS]

Thanks Damonca21, good point about pump as other colours are ok. trying to figure out cap top alignment. If I do a captop height adjustment in service mode do I manually position the cap top position to head manually then set the cap height, does this then set the height? the service manual doesn't mention horizontal alignment only vertical height..thanks.

Nozzles missing don't change position after head soaks so possibly not the damper? Wipers just replaced with oem. lines seem ok when pushing through cleaning solvent from captop joint to waste