Epson SEIJ98006 Switching to the pump gear train, 7. Switching to the Pump Gear Train, Revision C

EPSON Stylus Color 900 Revision C

[Switching to the pump gear train]

Figure 2-7 shows the gear condition after switching to the pump gear train is completed.

The steps below show how the gears move to switch from the ASF gear train to the pump gear train.

7.In the ASF gear train condition, the gears (3) and (4) are in mesh.

8.The pump/ASF motor rotates reverse (CCW).

A S F t r a n s m is s io n g e a r	9. The planetary gear set tries to move down, but the solenoid
	prevents it.

10. The solenoid comes on allowing the whole planetary gear set to move down. At this point, the gear (3) does not rotate, but the motor pinion gear and the gear (2) rotate in mesh.

11. The gears (3) and (4) come in mesh, and the connection to the

P u m p / A S F m o t o r	pump gear train is fixed when a corner of the solenoid is aligned
	with the notch in the planetary gear set.
	12. The gear (4) meshes with the pump transmission gear in the printer
	mechanism to perform CR lock and pump drive operations.
	S o le n o id
	P la n e t a r y g e a r s e t

P u m p t r a n s m is s io n g e a r

Figure 2-7. Switching to the Pump Gear Train

Operating Principles Printer Mechanism Operating Principles 53