C203 Not Printing Magenta or Yellow

**Wayne Redman** · 03-29-2015

Hi Guys

Have a Bizhub C203 that is not printing out Magenta or Yellow. I've replace both M & Y Imaging units, cleaned optics/laser with wand, went into simulation and done gradient test - No magenta and yellow on test. Checked Toner levels, all look normal. Thinking it could be developer drive motor that drives both M & Y. Any thoughts.

Regards

Reddog

**allan** · 03-29-2015

All the colors runs on the same motor M2 thats for the drum and the dev. If its that there must be gears broken. Then swop the drive section. Otherwise it could be HV.

The machine would give you alert codes that should be helpful in finding the problem also check the data under state confirmation to see if something is fishy there.

Manual on blank prints:

Check PH connectors
Check Drive couplings
Check IU contacts
Check HV

**Wayne Redman** · 03-29-2015

Hi Allan

It has not thrown up any error codes as yet and there is no grinding noises. I was assuming the Dev augers were not turning therefore depleting the dev of toner. Agree with you that it could be HV. I will check it out later today.

Thanks for your advice.

Cheers

Reddog

**allan** · 03-30-2015

Check for P-codes if there is color missing you are sure to have them. Look for the oil can icon. The machine can't complete stabilization correctly with a color missing.

**Wayne Redman** · 03-30-2015

I have a P7, P8 & P21. Just Run Image Process Adjustment > DMax > all were 0 in Copy and Print.

Looking at Drive to Imaging units.

**Brett GS** · 03-30-2015

Have you tested th HV in another machine? Sounds like it could be that.

Brett

**Albonline** · 03-30-2015

stick a magnetic screwdriver into the toner collecting box,does steel come out? yes, replace hv unit! not rocket science.

**francisco** · 03-30-2015

Originally Posted by Wayne Redman

Hi Guys

Have a Bizhub C203 that is not printing out Magenta or Yellow. I've replace both M & Y Imaging units, cleaned optics/laser with wand, went into simulation and done gradient test - No magenta and yellow on test. Checked Toner levels, all look normal. Thinking it could be developer drive motor that drives both M & Y. Any thoughts.

Regards

Reddog

change transfer belt