Question about Konica Minolta Bizhub C253 Copier
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: toner end life
There are silver wire contacts on the left and right that are spring-loaded and touch on copper tabs on the cartridge. They may not be making proper contact. Wiping with some contact cleaner ona cloth may help, or failing that try brightening the surfaces with some fine Scotchbrite pad to help them make proper contact.
Posted on Nov 19, 2007
When the front door is open, it locks the 4 cartridges so they can not move. The tab is flimsy & I broke mine on the second or third change. It pushes on a mechanical switch just above the toner port. If you broke the tip of the tab off, you can use a drywall screw inserted into the Mechanical switch. when the door closes the bigger part of the tab will push the screw against the switch,
Posted on Aug 26, 2008
I just got off the phone with KM tech support for the same problem with my 2430dl. Take out the drum and remove the toner cartridges, then look inside the printer. You will see a piece of glass about 6" long. Next to it, on the right side of the printer, there is a little white plastic enclosure that contains three spring-loaded contacts; this is the sensor that reads the chips on the individual cartridges. First, try cleaning the three contacts with a swab/alcohol, as well as the chips on each cartridge. If this doesn't solve the problem, then the problem is likely with the sensor. The part number should be 4139-6306-02, and it runs about $5. This should solve the problem.
Posted on Jan 26, 2009
This is actually a desigbn fault on the magicolor printers. Underneath the toner rack is the 3 pin chip reader - normally white and plastic with 3 metal contacts sticking out.
it is at the bottom of the printer so very often toner drops onto it and the sensors dont work, it also takes a bit of a beating as the cartridges rotate. Its very easy to replace - but you need the part,
Minolta should have put it at the top rather than the bottow where it gets covered in dust.
these guys helped me a lot
Posted on Feb 22, 2009
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