Fatal error msg 142 on Konica 7821 n

Konica-Minolta bizhub C253 - Error Code - Printcopy.info

https://printcopy.info > code=C2552
Code: C2552 · Description: Abnormally high toner density detected cyan TCR sensor TC ratio in the developing machine, which is determined by Toner replenishing ...

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  Konica-Minolta bizhub C220 - C2552 - PrintCopy .info

  https://printcopy.info > code=C2552
  Code: C2552; Description: Abnormally high toner density detected cyan TCR sensor • TC ratio in the developing unit which is determined by toner replenishing ...
  
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Fatal error code 173:
This error indicates that the Image Drum Up/Down Process is not working properly. The errors are as follows:
140 - Yellow Drum Up/Down error
141 - Magenta Drum Up/Down error
142 - Cyan Drum Up/Down error
Solution:
1. Reseat the Image Drums. Ensure they are in seating properly into the drum carriage.
2. Reseat the Toner Cartridges. Ensure they are seating properly into the Image Drums.
3. Reseat the Contact Sensor Spring assembly and inspect it for damage or mis-alignment. If the springs appear bent or dis-lodged reseat them.

it's a problem with cyan ID. clean the cyan drurum's contact and the cointacts inside the printer where cyan drum ''sits''. if not try with a used drum.

FATAL ERROR CODE 15H / SERVICE CALL 15 XFER BELT: Incorrect pressure
by or separation from the transfer belt cleaner

something wrong with the transfer belt

This is a Toner Sensor Error, Color:Cyan

and can be corrected by checking that the Cyan toner lock lever is correctly in position.

Normal 0 Driver could be corrupt.
Disconnect the printer or at least be sure it is turned off. I'd do both and reinstall the CD software program that came with the printer. When the software program asks you to connect the printer to the USB port, do so and it should again work properly.
Hope this helps. Bud

FATAL ERROR CODE 21H / SERVICE CALL 21 TRANS DET SENS: Malfunction of the OHP detecting sensor

check the OHP detecting sensor (PC3A) (it's at the front above the waste toner sensor pc6)

I am pretty sure this is the result for your 162 code:

Toner Sensor Error, Color:Cyan
When cyan toner sensor error has occurred

Try reseating your toner carts.

I had the same problem one time, they told me to pull out all of the toner cartriges, power off, power on, power off, replace all cartridges and the problem went away.

Who knows why. If this doesn't work....

Call Konica Minolta tech support.

They were pretty helpful to me.

Dave

A couple of suggestions. 1. make sure there is not any plastic shipping tabs that need to be removed from the cartridge. 2. try reseating the cartridge. 3. Try replacing that cyan cartridge. It may be defective. Also make sure you use Minolta brand toners!