DP-3030 Light Copies?

**disko** · 10-09-2015

Good Friday afternoon!
Having quite a battle with a few machines in the field. the DP-2330/3030 series. Here is the issue, Customer originally called in for Light Copies, PM cycle was close for developer/ OPC Drum. Went ahead and did OEM Drum/ Developer / Toner. Did F8-09 & F8-14. Checked Doc Blade Gap, cleaned LVPS/HVPS had a error on the F8-14 - E03-40. Cleaned the transfer roller/replaced with OEM and the CDS PCB which cleared the error.

Flash forward a few weeks later, 3,524 copies later. Customer calls back with same request for service. Light Copies.

Printed out F1 - Page Memory Test to check the Squares for density and its light. Its almost like no toner is being added to developer. Manually went in and added toner. Re-Ran test/ calibrations. Checked everything. No improvement?

Whats next, re-exchance the developer again? I have been having the same issues on multiple machines across different customers. They call in for Light copies and I exchange the Developer and Drums for fresh ones and a week or so later, same issue. Is there perhaps something I might be missing?

Pulling my hair out over here.

**disko** · 10-09-2015

oh, and I have also swapped in a TDC Sensor ( L2DA00000127 ) as well!

**onetek** · 10-13-2015

Where is your F6-21 at? (Should start at around -36 for a new dev, and -58 for a dev around 120k).Also, you might have to increase yout F6-26 (tdc judgement level) so it wont take too long before adding toner.

**disko** · 10-13-2015

Another customer with the a 3030 called said they have light copies as well.

F6-21 on most of the machines are in between "-37" & "-47", some use OEM toner/druns and some use compatible toners/drums. ALL OEM developer but its spread out upon a mix of machines in the field.

I usually pop in once in a while and clean the charge roller, transfer roller and check for developer dumping. Its the 6th machine now I have in the field that is randomly producing these copy quality issues.

So far I have been just replacing developer ( cleaning out the developer unit (also removing the TDC sensor and vac. the unit completely clean (mag roller etc)) and setting the doc blade gap.

Everything appears to be "normal".