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Konica Minolta Bizhub C300 All-In-One Printer - Page 2 Questions & Answers
C-2551 error code
Check the cyan image unit. Pull it out and shake side to side to spread the developer in side the image unit along the whole length of the image unit. Then reseat the image unit. if the code comes back replace the image unit with a NEW one do not use old one hanging around. Also recommend using OEM cartridge.3rd party can cause problems. could also be a circuit board (Expensive). But have a tech re-flash firmware before replacing board Btw, I’m available to help over the phone in case u need at
https://www.6ya.com/expert/normanj_7893313f0751935f
C300 Fuser unit reset
To reset fuser unit you need change the 60mA/250V fuse,located in the fuser unit contact house (a little green diode).
What are codes F-34 and F-35?
These are heat sensor abnormality error codes in Konica Minolta 7222/7145/7135/7235/7228 models.You did not mention the model.
When I turn on the machine (bizhub c300) error
This is a fuser related code.
To reset the code, please do the following
1. Turn OFF the Main Power Switch.
2. Turn Main Power Switch ON while pressing the Utility/Counter key.
3. Touch Trouble Reset.
4. Check to make sure that OK is displayed and the it has been reset.
5. After turning off the Main Power Switch, turn it on again more than 10 seconds after
and check if the machine starts correctly.
Good luck
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