Drive Transmission To Carriage Shaft - Epson Stylus Pro 4400 Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880C

DRIVE TRANSMISSION TO CARRIAGE SHAFT

1. The Planetary Lock Lever (along with the DE Lock Lever) are moved to the
right end by moving the Carriage Unit to the right end of the Carriage Shaft.
Figure 2-21. Switching Drive Transmission Path (1)
2. The PG/PO Motor rotates by the required step number in the clockwise
direction as seen from the Motor Pinion Gear side.
3. When the PG/PO Motor rotates in the clockwise direction, the Planetary
Holder raises up in the direction of the Combination gear, 56, 8.8, and the
Planetary Holder Spur gear, 16, engages with the Combination gear, 56,
8.8.
Operating Principles
1 DE Lock Lever
2
Printer Mechanism Components
4. The planetary Lock Lever fixes the Planetary Holder in place when the
Carriage Unit moves the required step number to the left from the Carriage
Shaft right end.
Figure 2-22. Switching Drive Transmission Path (2)
5. When the drive transmission path is switched by Step 1 through Step 4,
PG/PO Motor drive is transferred to the Carriage Shaft by the path shown
in Figure 2-18.
Revision C
Fixing Location
129