Konica Minolta Magicolor 3730DN Waste Container Servicing
When I realized that a toner overflow or waste container for my Konica Minolta 3730DN was about $50 I thought there had to be a better solution. After all it is located right in the front of the access panel and not hard to reach at all.
I took it out and realized that on the top corner there is a little sliding silver trap door that allows the toner to enter when the waste container is inserted in the printer, but slides shut as i pulled it out. I took a large garbage container with a liner and gently tipped it upside down until the toner started to flow out. This continued for quite a while as it was basically completely full. When I thought it was empty I tipped it back and forth a few times and tapped in on the side of the garbage can to unlodge any stuck toner inside and then again slid the trap door back open and emptied the remainder.
When I installed it back in the Konica Minolta Magicolor 3730DN printer however it did not work. The error message continued. I restarted both the printer and the computer to see if that was my problem. It was not.
I googled for a solution but didn’t find anyone who had figured this out. But I uncovered a clue that some brands use weight to measure the fullness level, but not Konica Minolta. So what might Konica Minolta use? I looked around and noticed a clue. There is a clear tube on the waste container and it fits between 2 things that stick out on the printer.
CLEARING THE ERROR MESSAGE
And sure enough – it is an optical sensor. Now that your toner waste container is empty, shake the small amount that is in the clear plastic tube around until it is back in the main black container. This will ensure that the optical reader can see through the plastic tube and register your waste container as empty. You can see the optical sensor from the Konica Minolta Magicolor 3730DN in the small picture below.
This also would explain if you removed your waste container to swap toner cartridges and it sudden it registered as full even though it wasn’t really full at all.
And now we’re back at where we started with the waste container reinserted into the Konica Minolta Magicolor 3730DN printer and are ready to close the lid and start printing again!