E5: Eraser Error - Mita DP-2800 Service Manual

5A2

E5: Eraser error

Meaning
The eraser does not
turn on.
E5
Remove drum unit.
Measure resistance
between pins 1 and 7 of
KP-562.
R=∞?
Replace drum unit.
6-28
Suggested causes
• Connector error between CON1
board and the drum liaison board
• Defective connector between the
drum liaison board and the drum
board
• Defective transistors and logic gate
ICs in the eraser controller circuit
on the engine board
• Connection error between drum
unit board and eraser lamp
• Broken eraser lamp
No
Yes
Replace KP-558. If not
recovered replace S02070
cable between KP-564 and
KP-568.
Install drum unit.
Measure resistance
between pins 2 and 6 of
KP-564/YC7.
R=∞?
Yes
Corrective action
Replace KP-544. Replace
KP-564. Replace drum
unit. Check/replace
S02070 cable.
Replace KP-544.
No
If not recovered,
replace KP-564.