E020-1360 Occurred Due To The Screw Of The Inner Middle Panel In The Machine Coming Off Or Getting Loose; E020-0120 Occurs Due To The Stuck Coupling Of The Drum Unit Upon Inserting The Drum Unit - Canon imageRUNNER ADVANCE C2000 Series Technical Workbook

27) Make a copy in CA-1 test chart. If no problem is found on the image, then the work is completed. If
there is a problem with image density, go back to step 25).
FM3-8084 Toner Feed Assembly, Black
When upgrading to MN-CONT Ver.20.70/DC-CON Ver.40.03 or later, follow the combination below.
MN-CONT: Ver.20.70/DC-CON:Ver.40.03/G3 FAX:Ver.2.05/Inner Finisher-C1 SORTER: Ver.6.03
Title

E020-1360 occurred due to the screw of the inner middle panel in the machine coming off or getting loose

Symptom
E020-1360 occurred due to the screw of the inner middle panel in the machine coming off or getting loose.
- E020-1360: Abnormal detected Bk patch reading value
Cause
If the screw [A] of the inner middle panel gets extremely loose or comes off, the inner middle panel becomes
unable to retain the [B] on the drum unit to where it should be set resulting in it moving forward. Because of
this, drive was not transmitted to the drum and the Bk patch could not be formed.
Service work
Tighten the screw of the inner middle panel.
Title

E020-0120 occurs due to the stuck coupling of the drum unit upon inserting the drum unit

Symptom
E020-0120 occurred due to the stuck drum unit coupling.
-E020-0x20: ATR sensor error or toner supply error (x=0: Y, 1: M, 2: C, 3: Bk)
Cause
When inserting the drum unit into the main unit, the coupling [A] gets stuck with the guide rail [B], causing
E020-0x20.Picture [C] shows the stuck coupling.
pg. 68