Epson LQ 1050 Technical Manual - Page 131

REV.-A, Step6

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REV.-A 4.2.5.5 Timing Belt" Belt-Driven Pulley Removal S t e p l : Remove the printer mechanism (Refer to Section 4.2.5. 1.). Step2: Remove the timing-belt tension spring. Step3: Loosen the two CPS(0) (3 X 10) screws which fixing carriage motor mounting plate to the base frame. Step4: Pull the timing belt out from carriage motor pulley. Step5: Place the carriage over the notch in right side of the base frame, and release the engaged parts of the timing belt and carriage from the bottom side of the base frame. Step6: Remove the belt-driven pulley by moving it to the left, and remove the timing belt. ,,, ,. ~ .. Belt Driven Pulley Timin"g Belt Printhead Position Timing Belt Tension Spring Figure 4-22. Timing Belt Removal Engaged Part Carriage Bottom View Timing Belt ,, .. . . * r,.,.. Figure 4-23. Timing Belt Insertion ASSEMBLY POINTS 1. Verify that the timing belt runs around the belt-driven pulley and the belt-driving pulley of the carriage motor shaft. 2. Insert the timing belt firmly into the carriage, utilizing the notch in the base frame, in the same way as when removing it. After insertion, apply adhesive at the engaged parts of the carriage and the belt (Refer to Section 6.2, Lubrication and Adhesive Application.). Insert the belt until the undersurfaces of the belt mesh with the inserted parts of the carriage. 3. Hang the timing-belt tension spring on hooks for both base frame and carriage motor mounting plate. 4. Tighten the screws on the carriage motor mounting plate. - 4-18

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REV.-A
4.2.5.5
Stepl:
Step2:
Step3:
Step4:
Step5:
Step6:
1.
2.
3.
4.
—
Timing
Belt”
Belt-Driven Pulley Removal
Remove the printer mechanism (Refer to Section 4.2.5. 1.).
Remove the timing-belt tension spring.
Loosen the two
CPS(0)
(3 X 10) screws which fixing carriage motor mounting plate to the base
frame.
Pull the timing belt out from carriage motor pulley.
Place the carriage over the notch in right side of the base frame, and release the engaged parts
of the timing belt and carriage from the bottom side of the base frame.
Remove the belt-driven pulley by moving it to the left, and remove the timing belt.
Belt Driven Pulley
Timin”g
Belt
Printhead Position
Timing Belt Tension Spring
Figure 4-22. Timing Belt Removal
Engaged Part
Carriage
Bottom View
Timing Belt
Figure 4-23. Timing Belt Insertion
ASSEMBLY POINTS
Verify that the timing belt runs around the belt-driven pulley and the belt-driving pulley of the
carriage motor shaft.
Insert the timing belt firmly into the carriage, utilizing the notch in the base frame, in the same
way as when removing it. After insertion, apply adhesive at the engaged parts of the carriage and
the belt (Refer to Section 6.2, Lubrication and Adhesive Application.). Insert the belt until the
undersurfaces of the belt mesh with the inserted parts of the carriage.
Hang the timing-belt tension spring on hooks for both base frame and carriage motor mounting
plate.
Tighten the screws on the carriage motor mounting plate.
,,,
,.
~
.
.
,,
.
.
.
.
r.
*,
,..
4-18