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2. Removal and Replacement Procedures
Important Caution:
For reasons of safety and to avoid possible damage to electronic components, the AC cord must be removed before
disassembly.
Whenever servicing or replacing the CRT display tube, it is important that the anode high voltage be completely dis-
charged, as high voltage (12.7KV) may remain on the anode for an extended time after power off.
Refer to "Safety Precautions" on pages 1 and 14.
Remove the keyboard unit before proceeding with the following:
Paper Support
Note: To comply with safety requirements please fol-
Silent Cover
low the caution label on the inside of the Ac-
cess Cover.
SERVICE CAUTION
PLEASE USE SCREW WITH
Platen
Platen Knob—-@
A
Printing Mechanism Unit
2
Mechanism Plate
1.
2.
1.
2.1 Rear Cover
Se
|
<=) WASHER IN THIS LOCATION
Remove both platen knobs.
Remove
the top cover with reducing the clamp
part from the projection. And release the platen
by rotating the platen latches. (3.2.5)
. Remove 2 screws @ from the rear.
. Carefully raise the rear cover by holding the back
side and remove it.
. Replacement is done in the reverse order.
2.2 Mechanism
Unit
Remove
the rear cover
(2.1) and
5 screws
from the access cover.
. Unplug the following from the main logic board;
the carrier flat cable CN4, the spacing motor con-
nector CN5 and the paper feed motor connector
CN2 and lid open switch connector (CN8).
. Remove 3 screws © from the mechanism
plate.
And
remove
2 screws
©
from
the
printing
mechanism to separate from mechanism plate.
. Release the hooks by sliding the unit a little to
front and lift off it.
For disassembly the printing mechanism
refer to the
section 3.1.
5. Replacement is done in the reverse order:
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