Epson Stylus Color C70 Service Manual page 42

EPSON Stylus COLOR C70/C80
CLUTCH MECHANISM
The Clutch mechanism is located at the rear of the printer inside the left part of the
ASF unit.
Unlike the previous products, this product dose not have a ASF HP sensor.
Instead of the ASF HP sensor, Change lever and the Clutch mechanism are used to
detect the ASF home position. Following figures describe the mechanism.
Paper feeding
1. When the print data is sent to the printer, paper feeding starts.
2. The Carriage unit moves to the left side of the printer and contacts the Change
lever, causing the hook of the Change lever to disengage from the projection on
the Clutch.
the projection
on the clutch
Cange lever
Figure 2-8. Paper feeding (1)
Operating Principles
3.
4.
the hook of
the change lever
Overview
The driving force from the PF motor is transmitted via Combination gears 18.4
and 32.8, Spur gear 22.4, Spur gear 12 and Combination gear ratchet 33.4 in that
order, causing the clutch and the LD roller to rotate clockwise so that paper is fed.
Spur gear 12
Combination gears
18.4 and 32.8
Figure 2-9. Paper feeding (2)
When the first sheet of paper has been fed, the second sheet is returned by the
paper back lever.
Revision A
Combination gear
ratchet 33.4
LD roller
Spur gear 22.4
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