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HP Latex 365 OMAS issues- not completing OMAS calibration

SignSemipro

New Member
Hello all,

I'm new to both this forum, as well as this sector of the sign industry. I went through a 2 week training program, and mostly feel confident in operating the 365. However, one thing about the printer I was assigned very much boggles me. The substrate I'm using is 3M 3930. I understand that it's a reflective media, and it can be challenging to the OMAS sensor. I've cleaned the encoder strip, recently replaced the carriage belt, and deleted/ redownload an ICC profile for the 3930. I've cleaned the sensor in the maintenance cartridge area, and I've made sure that on the RIP software I'm using (Flexi 19) has the correct output profile and media profile selected. I've advanced the media to attempt calibration on different lengths of the media. And most importantly, I've cleaned the OMAS sensor on the platten itself. Does anyone with more experience have any pointers for me solving this issue? I would ask a manager but I'm one of 5 employees at my location, and since signs aren't the primary focus of my company, my manager lacks the knowledge I require to solve this. I freely welcome any suggestions!
 

SignSemipro

New Member
Okay, I apologize. The issue is that whenever I do an OMAS calibration, it says OMAS not reading, clean or disable it from RIP. The problem I'm having with manual calibration is that when it prints the test plot onto the 3930, due to the reflective properties of the media I'm unable to read the results to be able to input that into the step advance on the profile.
 

balstestrat

Problem Solver
Just start printing something you can clearly see the movement and adjust the advance on the fly. Just copies for 50 feet ex. you can cancel the job when you find the correct value. RIP without color correction so it's pure black (or use something of your own).

You probably want to start at 0 and I think you need to go negative. Just keep in mind that you have to let one print completely before you change the value again. Otherwise you will not know what's going on.
It would also be wise to let it print for feet or two to stabilize before you start adjusting.
 

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  • Advance Calibration test art file.pdf
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