Two Heads on the Same Group Stop Firing

[JMSports]

I had two heads stop firing during production. Both are on the same group. I did a test print and two colors were completely missing. Is it the fuse blown or should I check the head cables first? I'm thinking it is not the cables, but it might be worth a try. It's just odd that four cables would go out the same time. I guess anything is possible. Any one have a idea? The printer is an fj-540.

 

[Solventinkjet]

Most likely a fuse blown. You are going to want to check your cables anyway to make sure whatever blew the fuse isn't going to do it again once you get it fixed. You might as well take the cables out, clean any debris or ink that may have fallen on to the cable leads or the terminals and then re-seat the cables. I would explain how to do a cable swap to verify it is not the heads but the odds of 2 heads/4 cables on the same group failing at the same exact time and not being the fuse is probably astronomical.

 

[JMSports]

Very True!

Most likely a fuse blown. You are going to want to check your cables anyway to make sure whatever blew the fuse isn't going to do it again once you get it fixed. You might as well take the cables out, clean any debris or ink that may have fallen on to the cable leads or the terminals and then re-seat the cables. I would explain how to do a cable swap to verify it is not the heads but the odds of 2 heads/4 cables on the same group failing at the same exact time and not being the fuse is probably astronomical.

Very true! It was actually printing and just went out. I will clean the cables first.

 

[JMSports]

Cleaned Cable Ends

Most likely a fuse blown. You are going to want to check your cables anyway to make sure whatever blew the fuse isn't going to do it again once you get it fixed. You might as well take the cables out, clean any debris or ink that may have fallen on to the cable leads or the terminals and then re-seat the cables. I would explain how to do a cable swap to verify it is not the heads but the odds of 2 heads/4 cables on the same group failing at the same exact time and not being the fuse is probably astronomical.

I cleaned the ends of the cables. I didn't see anything out of the ordinary. Where you plug the cable in on the heads they were nice and clean. More than some others I have anyway.

 

[JMSports]

The Fuse

I cleaned the ends of the cables. I didn't see anything out of the ordinary. Where you plug the cable in on the heads they were nice and clean. More than some others I have anyway.

The fuse on the fj-540 is it solder on? I know the xj-540-740 they just pop in and out.

 

[JMSports]

The fuse on the fj-540 is it solder on? I know the xj-540-740 they just pop in and out.

I did find a black spot on one of the head cables that look like a short. I picked at it very lightly and I could see the wire. The rub was about where the edge of the protector cover on the board sits.

 

[brightbanner]

If the cables are OK, you need check the main board.
Probably fuse on main board was blown.

Brent

 

[JMSports]

If the cables are OK, you need check the main board.
Probably fuse on main board was blown.

Brent

Ok thanks