Loading and Unloading?
When my printer loads filament the sensors all indicate that it detects it and it should continue the print, but instead it retracts and filament and tries to load it again. The sensors will still say that they can detect the filament when it is loaded but it will continue to retract and reload until it says the filament loading failed. Any ideas on why it won't proceed?
RE: Loading and Unloading?
This is most probably caused by inconsistent sensor info, my guess would be the IR sensor in the extruder does not switch to 1 reliably and consistently. Could also be a wiring problem. I'd start with recalibration the IR sensor. https://help.prusa3d.com/article/ir-filament-sensor-calibration-mmu2s_2245
Even if you already did so and think it's ok - the sensor calibration is for the MMU operation what the first layer calibration is for printer newbies...
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RE: Loading and Unloading?
Thank you, I finally understood the problem.