Re-using Konica Minolta bizhub waste toner boxPosted: October 20, 2013
You are working overnight to finish an urgent report due in the morning, and just as you are about to print it, your Konica Minolta bizhub printer says that its waste toner box is full and needs to be replaced, and refuses to continue operation.
You have no spare waste toner box in stock. You can not reach a supplier before the deadline.
It seems like a good moment to panic, but, luckily, not everything is lost yet. It turns out that you may manually dump the waste toner while keeping the box, and go on happily with your printing.
The particular fix is for Konica Minolta bizhub C224 (C364 series), but may well apply to a lot of other similar machines.
- Get a lot of plastic trash bags.
- Get a lot of paper towels.
- Get a screwdriver.
- A small brush may help.
- Take out the waste toner box as advised by the manufacturer. Hold it straight!!!
- Immediately place it into a plastic bag placed into another plastic bag.
- Carefully turn it to access its bottom back side.
Cleaning the window:
- Find a detail looking like a brick/mud colored knob. Actually it is a small transparent plastic box filled with waste toner from all the color cartridges.
- Unscrew two small screws holding it to the box.
- Carefully remove the small knob.
- Carefully shake the waste toner out of it.
- Don’t loose the foam gasket found around it!
- Put it aside in a safe place.
Shaking out the waste toner:
- Stick your hand into the double plastic bag where your waste toner box is.
- Grab the box.
- Pull close the plastic bags with your other hand around your hand holding the box.
- Keep slowly turning and carefully shaking the box in all directions to get the toner out of it through the openings.
- Hold still for a moment and let the toner dust settle in the bag.
- Carefully pull your hand out of the bag.
- Get a new clean plastic bag.
- Carefully move the waste toner box into the new bag.
- Close the dirty plastic bags and put them into another bag for later disposal.
- Go wash yourself.
- Come back and wash the floor and anything else as needed.
- Repeat until no more toner comes out of the box.
Cleaning the box:
- Keep the waste toner box inside the bag.
- If you have a brush, use it to scrub most of the waste toner dirt off the box.
- Use paper towels to clean off the powder. Use in alteration moist/dry towels until the box is reasonably clean. You will never get it all clean, so decide for yourself when it is enough.
Re-installing the window:
- Get the small transparent plastic knob, which you put aside in the beginning.
- Carefully place it into its position. Fix it with the two screws. Don’t forget the gasket!
Re-installing the waste toner box:
- Place the emptied and cleaned waste toner box into the printer as if it was a new one. Follow the manufacturer’s instructions.
I have got an impression that the printer is using an optical sensor to look into the transparent window knob of the waste toner box to see what the powder level is. Possibly it also judges the weight of the waste toner box. So, as long as the box is lightweight and its knob is transparent, the printer is happy with it.
- Be careful with the waste toner. It was designed by ingenious people to be extremely good at making things VERY dirty. Treat it with respect! Really.
- You don’t want to do this on a carpet. If you absolutely have to, cover it in your work area with something, e.g. the plastic bags.
- Don’t breath in the toner dust. It is not toxic, but (a) I know of the real life case of a woman dying of suffocation after breathing in plastic dust; (b) extremely fine particulate matter may be really bad to your health. I do not know if that is the case here, but we are not going to find it out on our own account, are we?