Specifications

REV.-B
3.2.4 Removing the PRINTER MECHANISM
1. Remove the HOUSING ASSY., UPPER (see Section 3.2.2.2).
2. Remove the CB (M3X6) screws that attach the HOLDING PLATE., FFC to the SHIELD PLATE, MAIN
BOARD. Remove the HOLDING PLATE,FFC.
3. Disconnect the 2 FFCs(CABLE, HEAD, FRONT(,REAR)) from the CN6 and CN7 connectors on the
BORAD ASSY., MAIN. Remove the cables for the following BOARD ASSY., MAIN connectors: CN3
(brown 12-pin), CN4 (white 5-pin), CN5 (white g-pin), CN8 (yellow 2-pin), CN9 (black 2-pin), CNlO
(blue 2-pin), CN 1 1 (white 2-pin) and CN 12 (red 2-pin).
4. Remove the CBS(C) (M4 X 10) screw that holds the SHIELD PLATE., RIGHT to the BOARD ASSY., MAIN
(see Figure 3-6). Remove the CBS(C) (M4X 14) screws that hold it to the HOUSING ASSY., LOWER.
Remove the SHIELD PLATE., RIGHT.
5. Remove the three CBS(C) (M4X 14) screws that hold the PRINTER MECHANISM to the HOUSING
ASSY., LOWER. Remove the PRINTER MECHANISM.
\mCBB(C) (M4 X 14) Screws
CBS(C) (M4 X 14) Screws
(This illustration shows the LQ-570,
an 80column printer.)
Figure 3-10. Removing the PRINTER MECHANISM
Point to Note for Assembly and Adjustment
After replacing the PRINTER MECHANISM, you must adjust the bidirectional print position to ensure
I
bidirectional printing is correctly aligned (see Section 4.2).
3-9