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The pressure spring.
transmission mechanism
(8) Removal of the operation PCB (M-2) and the LCD.
a) Remove the right and left cabinet. (Refer to 6-1-(1))
b) Remove the transmission mechanical unit. (Refer to
6-1-(2))
c) Remove
two
screws
(one screw
at each
end)
securing the operation panel. (Fig. 6-4)
d) Remove
two screws
securing the cover located
back side of the operation panel. (Fig. 6-6)
e) Disconnect the CN24 on the M-2. (Fig. 6-7)
f} Remove eleven screws in total securing the M-2.
(Fig. 6-7)
g) Remove two screws securing the LCD. (Fig. 6-7)
screws (2 pes) securing
nes te ot Ine operabonipane!
(2) Replacement of the Thermal Head
a) Remove
two
screws
securing
the cover
of the
receiving mechanicai unit. (Fig. 6-10)
screws (2 pcs) securing cover
b) Remove
two screws
(one screw
at each end).
securing the guide paper and remove the guide
paper while opening a part of the boss at both ends.
(Fig. 6-11)
Fig. 6-10
Boss
SS
screws securing guide paper
zs
at
Ses
—
(2 pcs both sides each)
screws (11 PCS) securing M-2
6-2. Replacement of the main parts
(1) Replacement of the contact image sensor (CIS)
Thermal head"
a) Remove the right and left cabinet. (Refer to 6-1-(1))
Guide paper
b) Remove the transmission mechanical unit. (Refer to
6-1-(2))
c) Turn over the transmission
mechanical
unit and
aa
ie -
remove the pressure spring from it. (Fig. 6-8)
d) Remove
two
screws
(one screw
at each
end)
securing the CIS. (Fig. 6-9)
Va'
Fig. 6-11
c) Disconnect two connectors
while taking out the
thermal head. (Fig. 6-12)
d) Remove two screws securing the thermal head.
(Fig. 6-12)
Connectors
7S
ESS
oo
Lo |
ieee
Thermal head
@.
q
OTe BB TOTTI 8
screws (2 pcs) securing thermal head
Fig. 6-12
e) Install the new thermal head and check the printing
quality by performing a black copy or the head test
before attaching the cover of the receiving mech-
anical unit
—25—
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