Designjet T1120 Phantom 86:01

[Lance15]

Have a T1120 that is getting a "phantom" 86:01 jam error. Was told it happened after loading a new roll.

Found once onsite:
The blue hub on the roll was backwards
Printhead cover wasn't locked

Fixed both of those, error continues.

Tried further:
Cleaned the encoder strip
Checked to make sure the cutter was installed correctly
Ran starwheel diag - PASSED
Ran service station diag - PASSED

All good. Am able to smoothly move paper back and forth through the paper path with no resistance. Checked both ends and under the carriage for any debris.

How plotter acts upon bootup:

Disk check
Carriage give a quick stutter
Carriage goes to left end, then, back to service station
Starwheel assembly actuates
Plotter throws 86:01 after maybe 1-3 second delay

Any ideas?

Thanks!

[Lance15]

Re: Designjet T1120 Phantom 86:01

Hmmmmmmm. Just checked CSN. Found "HP Designjet T Printer series - Carriage Touching in the Right Front Trim". It talks about checking the carriage rear bushing. Oiling, if necessary and the Pen to Paper Space (PPS) solenoid. The PPS solenoid is on the same side as the service station which is where it seems to halt.

I'll have another look and report back.

[theengel]

Re: Designjet T1120 Phantom 86:01

I think the last time I had one like that I ended up replacing the carriage.

[Kiran Otter]

Re: Designjet T1120 Phantom 86:01

It throws the error when it's over the service station? Was the service station replaced? It may be installed incorrectly. You can lower it down but keep it connected, and see if it boots, then you know it's some interference with the service station.

I'd also check the encoder strip very closely.. take it out and hold it up to the light, make sure the marks aren't damaged or missing in that area.

Try booting it with all the supplies removed, too.

Kiran

[Lance15]

Re: Designjet T1120 Phantom 86:01

Thanks Kiran. Nope, I've been the only one who's performed service on this plotter. The only other work I did was replacing the belt last September.

I ran additional tests. I ran the carriage test, and the PRS test. I removed the right hand cover when I ran the PRS test to watch the part move. Both of these tests passed. While I had it off, I cleaned the encoder strip again really good with just a water dampened towel. I put a flashlight up to it and examined it closely. It looked okay. I also closely checked again for any paper debris. Still couldn't find anything.

engel - the carriage PCA?


I'm stumped on this one.

[theengel]

Re: Designjet T1120 Phantom 86:01

I had a Z3200 that kept stopping with this code over the service station... after the customer had tried to replace the belt. I fixed the belt placement, and then tried replacing the encoder strip. I made sure everything looked right on the carriage. Finally, I figured I'd start with the carriage PCA. But the customer was already in a fighting mood because I hadn't fixed it yet, and I didn't feel like dealing with any 'maybe's. Actually, I was still just guessing. Anyway, I went with the entire carriage unit, and that ended up fixing it.

[theengel]

Re: Designjet T1120 Phantom 86:01

Yeah, here's the thread:

http://www.copytechnet.com/forums/hp/105320-designjet-z3200-86-01-error.html?highlight=z3200

[Kiran Otter]

Re: Designjet T1120 Phantom 86:01

Is the rear carriage bushing where it belongs? It's the same as on the 500/800s.

Kiran

[Lance15]

Re: Designjet T1120 Phantom 86:01

Kiran - Yeah. I checked that rear bushing. It's working as it should be.

[Lance15]

Re: Designjet T1120 Phantom 86:01

Wow! Whole carriage assembly for $101 (HP)!? Am I or it missing something?

[Kiran Otter]

Re: Designjet T1120 Phantom 86:01

Sounds used. And I would just replace the carriage PCA. If it's a bad encoder, that would take care of it.

Did you try dropping the service station a bit as a test? I know it's unlikely but I would rule out the service station causing some interference.

Kiran

[Lance15]

Re: Designjet T1120 Phantom 86:01

That is our price from HP. 15%? discount for being a partner. We have to purchase so much from HP to maintain our status.

No, I didn't drop the station. Everything passed the diags. The station homed, capped, uncapped, etc all while the carriage was sitting on top of it. I would have thought that if something was rubbing or in the way, the diag would have halted and failed.

I'll order the PCA and report back. It's been difficult getting to this customer as they are a non-contract customer. Have had several plotters on my plate lately and I'm the only tech who can work on them.

Thanks everyone for suggestions on this head scratcher.

[Kiran Otter]

Re: Designjet T1120 Phantom 86:01

What part number was it? I'm just curious if it's the carriage alone, without the PCA or flex cables, etc. That price just doesn't sound right.

Good luck!

Kiran

[Lance15]

Re: Designjet T1120 Phantom 86:01

I've conceded.

Kiran - Carriage part number is CK837-67027. Manual says it includes everything. MSRP is $155.87. We get a $54.55 discount.

I replaced the carriage PCA. Same error! The ONLY thing I didn't do, mainly due to having to balance cost, is remove the carriage and inspect it. I took a can of air to it. Underneath. Where the encoder strip goes through. Same error.

What I did:

Re-cleaned the encoder strip and inspected
Ran the Starwheel diag - PASSED
Ran the Service Station diag - PASSED
Ran the Carriage diag - PASSED
Ran the APS or PPS (whichever you call it) - PASSED
Removed all covers, including the cleanout to check for obstructions - NONE

Paper moves smoothly through the paper path, even underneath the carriage. SOMETHING had to happen that I'm not being told when I found the blue roll hub on backwards and the printhead cover unlocked.

Another agency says they can have the plotter they don't use.

Thanks again for all the suggestions and help on this one.

[Kiran Otter]

Re: Designjet T1120 Phantom 86:01

Hmm, I would have put money on the carriage PCA being the problem.

Also on the price, I remember when they changed the trailing cable on the Z series, you had to buy the carriage and cable together and it was over a thousand dollars. I'm realizing that isn't the case here.

I'd go down the path of replacing the encoder strip, trailing cable, then the main PCA. Something is making it think the carriage is stuck. I understand if it's become a lost cause though. I hate these kinds of problems!

Kiran