Copier.... afficio 450 vs konica 7025

sc 329 is the laser unit problem. the noise is not gear, it is laser noise. you have to replace the laser unit mate. thats the only solution.

change the lazer diode unit -thanks

This machine takes Part Number "887733: Developer Type 5"
Hope this helps.

Remove PCU, remove development unit, remove cover (2 plastic C-clips) remove filter, remove development roller (2 shoulder bolts). Clean roller and empty all developer. Pour in new developer, re-assemble unit. Reinstall drum and Development unit. Place a small piece of paper between the PCU and toner entrance hole to prevent used toner from entering dev. unit during calibration. Perform SP2-801. Remove paper form dev. unit

Niether..... Canon or Konica Minolta

Thraser, your still battling this machine? Of course your readings will be off if you only have developer coverage over half the mag roller? That's where I would start.
I also now wonder about your model #, because I don't think that the 450 has a VSDP reading, but the newer ones do. It refers to the "immediate post-pattern output" of the ID sensor -not surprised that these readings would be whacked!

Do you know how to calibrate the toner/developer sensor?

Preform SP 2-801 then 2-805.That will do it!

You may want to consider putting developer into the unit. What is the copy count on the machine?

You need a manual to calibrate the scanner do you have one?

There are some holes in the scanner that need to be calibrated with a tiny screwdriver. The manual teslls you the correct settings.

Did yiou remove the cable?