SATO CX400 - Page 32

Section 5: Maintenance
SATO CX400 Service Manual PN 9001110A Page: 5-7
5. Pry power switch (4) free from housing (5) and disconnect leads.
6. Remove the two screws (6) securing housing (5) to printer base (7).
7. Manipulate housing (5) free from base (7) and lift away.
NOTE: Pull the lower front edge of the middle cover away from the
base assembly, then begin manipulating the housing upward.
CAUTION: Take note of the location and orientation of
components as they are removed to assist in reassembly.
8. Remove e-clip (Figure 5-6, 8) from the face of gear (9). Withdraw gear (9).
9. Remove screws (10) from printer chassis (11) retaining each end of platen roller (12)
CAUTION: This platen incorporates the use of two different
bushing sizes; three of one size and a single bushing of the other.
Their size difference is not distinguishable to the eye. If they are
mixed, a caliper will be required to identify which is the odd size.
10. Manipulate platen roller (12) fully to the right and withdraw outermost bushing (13) from its
right shaft and then fully to the left to remove outermost bushing (14) from its left shaft.
11. Lift out the right end of platen roller (12) and then withdraw the left end from chassis (11).
12. Remove remaining bushings (15) from each end of platen roller (12).
13. Prepare to reassemble the unit.
14. Apply a single bushing (15) to each end of platen roller (12).
15. Insert the longer end of roller (12) fully into the left orifice of chassis (11) and then
manipulate the shorter end into the right orifice of the chassis.
16. Apply from the exterior of chassis (11), remaining bushings (14) and (13) to the left and right
ends of platen roller (12) respectively.
17. Secure the assembly in place with one screw (10) on each end.
18. Insert gear (9) onto the left shaft of platen roller (12) and secure using e-clip (8).
19. Manipulate housing (Figure 5-5, 5) over printer chassis (9) down to rest on printer base (7).
20. Secure housing (5) to printer base (7) using two screws (6) applied from the underside.
21. Reattach the applicable cover and/or attachment.
22. Connect power switch (4) to its respective leads and insert into face of housing (5) oriented
with the on position up.
23. Lower and latch print assembly (2) into operational position.
24. Close cover (1), connect power supply cord, switch power on, and test cycle.