bz 500

[hussain]

I replaced the whole corona unit. but no result

[Gergő]

I had the same trouble on C451. Fine image on tr. belt but poor quality in the paper. I changed everything ..... finally the parameter board (EEPROM board) was the guilty.

[Gergő]

50ga -911 1 parameter memory board assy

[salmoz]

mY PROBLEM WITH THIS MACHINE STARTED AND IS NOT YET FIXED WITH A PROBLEM SIMILAR TO YOURS. aFTER SOMETIME STARTED A LOT OF ERRORS C-2803 AND THERE I DISCOVERED THAT A TCR SENSOR ( THE SENSOR YOU FIND IN TO THHE DEVELOPER UNIT) WAS DAMAGED. i`M STILL WAITING A NEW ONE TO SEE THAT SOLVE ALL THE PROBLEMS.

[Gergő]

In case of bad TCR senzor there is no good image on the drum.