6-38 Confidential
6.1.12 Main PCB
CAUTION: Before accessing the main PCB, make sure that the power cord is unplugged from the
electrical outlet and the telephone line
is disconnected; otherwise, an electric shock could occur.
CAUTION: At the time of removal of the main PCB, untightening screws should be preceded by
disconnection of the harnesses and flat cables, and at the time of installation, connection of the
harnesses and flat cables, by tightening of screws. Observing this sequence prevents harnesses and
flat cables from getting crushed or damaged by screws or screwdrivers.
(1) Models with color LCD: Remove the three screws (two "a" and one "b" screws) from the
main PCB shield and lift it up.
Models with monochrome LCD: Remove the two screws "a" from the main PCB shield and
lift it up.
(6_33)
Ink cartridge
sensor harness
"a"
"b"
"a"
Main PCB shield
Paper feed
motor harness
PF encoder/registration
sensor harness
Power supply harness
Main PCB
Purge cam
switch harness
(Only on models
with color LCD)
SDAA enclosure
"a": Taptite, cup B M3x10
"b": Taptite, cup S M3x6 (Only on models with color LCD)