20
Unrecoverable Errors
Pr
inting
i
s
n
o lo
ng
er poss
i
ble whe
n
un
recoverable errors occ
u
r. The pr
int
er m
u
s
t
be repa
i
red.
CAUTION
Turn off the power immediately when unrecoverable errors occur.
Error
Error description
Error LED flash code
Memory R/W error
After R/W checking, the printer does not
work correctly.
High voltage error
The power supply voltage is extremely
high.
Low voltage error
The power supply voltage is extremely low.
CPU execution error
The CPU is executing an incorrect address.
Internal circuit
connection error
Internal circuits are not connected
correctly.
UIB error
An abnormal operation occurs in UIB.
Approx.
160 ms
Approx.2.56 s