OKIDATA OKIPAGE 8c, Service Manual

Page: 190 / 286

ERROR
nn Undefined Undefined Undefined Undefined OFF Blink 10 Indicates
that an error
was found in
the program
ROM by the
program
ROM check. Power off,
then power
on the
printer. If this
error still
occurs,
replace the
program
ROM on the
main board
(PCR PCB)
or the main
board itself.
When
replacing the
main board
(PCR PCB)
or the main
board itself.
When
replacing the
main board
(PCR PCB),
remove the
EEPROM
chip and
proms from
the old main
board and
mount it on
the new
main board.
Undefined Undefined Undefined Undefined OFF Blink 30 Indicates
that an error
was found in
the resident
RAM by the
resident
RAM check. Power off,
then power
on the
printer. If this
error still
occurs,
replace the
main board
(PCR PCB),
the
EEPROM
chip and
proms from
the old main
board and
mount it on
the new
main board.