Epson SQ-B50/2550 Technical Manual page 186

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REV.-A
Step 8 Remove carriage guide shafts A and B from the carriage by pulling them.
Step 9 Remove the CS screw (M3 X 12) securing the belt holder, then remove the timing belt from
the carriage.
Carriage (Bottom)
Figure 4-24. Timing Belt Removal
ASSEMBLY POINTS:
Reattach the timing belt so that no gap exists between the walls of the belt holder and the timing
belt, and the crests of the timing belt and the grooves(nine) of the belt holder match. (See Figure
4-25)
Apply adhesive lock to the belt holder set screw. (See Chapter 6)
Lubricate the felt (0-2) before inserting the carriage guide shafts into the carriage unit. When inserting
them, be careful not to move the felt. (See Chapter 6)
Reattach carriage guide shaft A so that the larger chamfer of eccentric cut is on the upper side. (See
Figure 4-23)
Timing belt
Figure 4-25. Timing Belt Assembly
ADJUSTMENT REQUIRED
After removing and reassembling the carriage, the following adjustments are required:
• Carriage timing belt tension adjustment (See Section 4.3.3.)
• Platen gap adjustment (See Section 4.3.4.)
• Printing position alignment (only for the bidirectional printing positions) (See Section 4.3.5.)
4-24

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