Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

[wcanonw]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

I wouldn't trust any of those sources as knowing what's compatible. In all my years dealing with HP, they have never put out the same part with two different part numbers. If the part numbers are different, the part is different. And even if there's some rare case they did somehow have 1 part with 2 part numbers, I would still presume they're different somehow. Use the right part and number for the machine you're working on.

Kiran

Years ago when I began to see the HP Designjet plotter, the technical area manager bought a spare Encoder Disk, the plotter had an error 81 or 85, I don't remember well, but the motor was also changed. The detail is that the original encoder disk was black and the new encoder disk was gray. To the surprise, there were still 8 new encoder disks in the box. I hesitated to place them because it was different from the original. In the end I only stayed with the original encoder disk

[Kiran Otter]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

hi kiran, about canon and hp plotter. Is there a way to create a color profile to improve the color quality? I have some clients who put compatible ink on their plotter and the colors come out very yellow or saturated.

You should start a new thread.

Since you're using a unknown variable (3rd party inks) it's probably impossible to do any color matching since the quality of the inks is not controlled.

You can look into color spectrophotometers. Color Spectrophotometers | Instruments for Color Measurement

Easiest solution is to stop using 3rd party inks.

Kiran

[daprex]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

they havent swapped the main pca with a 24 inch version on a 44 inch printer ?

[theengel]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

I don't think so. During the scan axis test, it says something like "checking the scan axis length." the carriage doesn't move. Then it says something like "44""

Anyway, I've got another encoder strip on the way. I'm going to replace that, check it, then replace the trailing cables.

[theengel]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

Brought a new encoder, this time the rightn p#, and a new set of trailing cables. Replaced both, and nothing has changed...

One thing: during the scan axis text, towards the beginning, it says "moving carriage to the middle" The carriage ends up in different spots, depending on where it started from. Sometimes, like if it started on the right, it just moves 3/4 to the left, then to the right some... well past the middle. If it starts in the middle, it goes all the way to the right side, then goes back toward the left---but again, not quite to the middle. I've been answering the menu and saying "Yes, the carriage moved" and then "yes, the carriage is in the middle" even though it's not actually in the middle. If I say, "no, the carriage is not in the middle" I get a failure with a 42:10 error. But the error never comes up otherwise..

And again--during the scan axis test, the machine recognizes that it's a 44" machine.

[Kiran Otter]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

Very odd. I would replace the EMOD next. Or maybe the printmech board since it's what drives the carriage motor.

Kiran

[wcanonw]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

Hello, is the carriage assembly new or did you put in another inoperative plotter?
here reviewing the service manual indicates that each part that is changed requires a calibration

[wcanonw]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

Hello, is the carriage assembly new or did you put in another inoperative plotter?
here reviewing the service manual indicates that each part that is changed requires a calibration

[wcanonw]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

Is the belt assembly in good condition?

[theengel]

Re: Designjet T1100 87:11 Fail nScan Axis Length: 1070368. Too SHORT

I would say that's the solution, except that the Scan Axis calibration is a PWM check and calibrates the intensity and placement of the line sensor,,, which I don't think is used until you have paper loaded. The carriage PCA is to reset ink short thresholds.

I'll probably sneak back in and try doing that, but I think the customer is ready to give up on this. I let them know that any parts I replacer now are just guesses, going by my experience and advice from other techs. Thankfully, I specified when I replaced the very first part, that there is no 100% certain fix... that each part is only LIKELY to solve the problem, but there's possibility that it won't.