Specifications

REV.-A
REQUIRED ADJUSTMENT ITEMS
F-
If you have replaced the printer mechanism, make the following adjustment in the specified sequence.
(1) Prlnthead drive voltage adjustment (Refer to section 4.4.)
(2) Print position adjustment (Refer to section 4.5.2.)
3.2.5 Circuit Board Removal
This section describes how to remove the MAIN board and the POWER SUPPLY board.
3.2.5.1 MAIN Board Removal
WARNING
When working with the MAIN board, take sufficient care in handling the battery. Carefully read the
precautions in 3.1.1 before beginning the work.
CAUTION
● To minimize damage to connectors, pull the female connector slowly while holding down the
MAIN board.
● CN 17 and CN 18 are connected to FPC, which are different from ordinary connectors. Take special
care in handling these connectors.
[Step 1]
[Step
2]
[Step 3]
[Step 4]
[Step 5]
[Step 6]
Remove the housing. (Refer to section 3.2. 1.)
Remove the printer mechanism. (Refer to section 3.2.4.)
Unscrew CCU Screw
(M3 X 8) which fastens the GROUNDING PLATE, RIGHT to the HOUSING,
LOWER, and remove the GROUNDING PLATE, RIGHT and the COVER, MAIN BOARD.
Unscrew the 2 screws (C. B.
S-TITE screw (M3 X 12)) which fasten the COVER, CONNECTOR,
UPPER to the HOUSING, LOWER, and remove the COVER, CONNECTOR, UPPER.
Disconnect the following connectors on the MAIN board: CN 19, CN5, CN6, CN4
Unscrew the 4 screws (C.
B.B. screw (M3 X 12) X 3 and C.C. U. screw (M3 X 8) X 1)) which fasten
the MAIN board to the HOUSING, LOWER, and remove the MAIN board.
C.B. B
.C. U. Screw (M3x 8)
GROUNDING PLATE, l/F
lard
C.B. B. Screw (M3 X 12)
MAIN
B(
. Ihl
HOU
a!!!lh-d
, y’” ~
C. B. S.-TITE Screws (M3 X 12)
~
-
,, ‘
JR, i..
k
4“,
COVER CONNECTOR,
UPPER
~yl-/y.yj ., .
+
~c”c”u” SGreW (M3xq
GROUNDING PLATE, RIGHT
““”- “ *CO’ERMAIN’OARD
Figure 3-16. MAIN Board Removal
3-17