Minolta Di620, Manual, Page: 300 / 466

T-85
1155SBT050309A
9) Smear on Back
Section Step Check Item Result Action
Engine
4 Is the paper guide shorted to the frame? NO Close the circuit properly.
5
Is the Image Transfer Corona installed prop-
erly? NO Install the corona properly.
6 Is the Image Transfer Corona wire dirty? YES Clean or change the Image
Transfer Corona.
7 Is the Lower Fusing Roller scratched or
deformed? YES Change the Lower Fusing
Roller.
8 Is the grid mesh installed in position? NO Install the grid mesh prop-
erly.
Memory
1 Select “Tech. Rep. Mode,” “Function,” and
“Image Memory,” in that order. Does “NG”
appear when “Input Image” is then run? YES Change PWB-B.
2 Select “Tech. Rep. Mode,” “Function,” and
“Image Memory,” in that order. Does “NG”
appear when “I.R. Mem. Prn” is then
run?
YES Change PWB-B.
Section Step Check Item Result Action
Engine
1 Are the Suction Belts dirty? YES Clean them and check the
Developing Unit.
2 Is the Image Transfer Corona dirty? YES Clean it and check the
Developing Unit.
3 Is the Pre-Image Transfer Guide Plate dirty? YES Clean it and check the
Developing Unit.
4 Is the Fusing Unit Entrance Guide Plate
dirty? YES Clean it and check the
Developing Unit.
5 Are the Upper and Lower Fusing Rollers
dirty? YES Clean or change the Upper
and Lower Fusing Roll-
ers. Check the Fusing
Roller cleaning mecha-
nism.
6 Has toner spilled from the Developing Unit? YES Change the Developing
Unit.
→
←
→
←