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20
Getting To Know Your Machine
Code Check Points
U20 ADF Cover is open.
U21 ADF/i-ADF was opened while scanning from
ADF/i-ADF.
U25 Toner hardened inside the Toner Bottle. Remove
the Toner Bottle, and shake it well.
U90 Battery requires replacement.
(See page 80)
Misfed Paper
Left Cover
■ Problem Solving
● Removing Misfed Paper (J19, J32, J82, J85, J87: ADU for DP-8020E only)
1
2
REMOVE MISFED PAPER
J82
EX.
Code Check Points
U01 Front and/or Left Cover is open.
U07 Feed Cover is open. (See page 18)
U13 Low Toner, or Out of Toner.
U14 Toner Waste Container is full.
U15 Toner Waste Container is incorrectly installed.
U16 Developer Unit is incorrectly installed.
Call your Service Provider.
● User Error Codes (U Code)
U20
U21
U90
U01
U13
U14
U15
U16
U25
U07
Operation Chart