C-2451, C-2452, C-2453 Or C-2454, Low Toner Density - Konica Minolta AccurioPress C2070 Troubleshooting Manual

1.3.10. C-2451, C-2452, C-2453 or C-2454, Low toner density

(1) Symptom
Just after developing unit replacement, C-2451, C-2452, C-2453 or C-2454 (toner density
abnormal) occurs.
(2) Cause
The orange tape is still attached to toner supply inlet of the respective unit.
(3) Solution
(a) Turn OFF the sub-switch then the main-switch of machine.
(b) Open the front door and remove the internal cover. Gently pull out the process mount.
Be careful not to spill the toner.
(c) Remove the developing unit from the process mount and remove the orange tape.
(d) Clean inside the machine when it gets soiled.
(e) Reinstall the developing unit to the process mount.
(f) Push back the process mount then fix the internal cover with the screw. Close the front
door.
(g) From the service mode, conduct [Toner Density Revert] for the applicable color for 4 to 5
times.
Select the applicable color then press [Start]. Repeat 4 to 5 times.
[Service]→[Process Adjustment]→[Drum Peculiarity Adj.]→[Toner Density Revert]
(h) Conduct [Gamma Automatic Adjustment]
[Service]→[Process Adjustment]→[Drum Peculiarity Adj.]→[Gamma Automatic Adjustment]
(i) Measure the density and confirm that no problem occurs.
Table of contents
KONICA MINOLTA Confidential
Orange tape
- 73 -