Operating Principles - Epson Stylus C 60 Service Manual

EPSON Stylus C60
LD roller shaft
When the PF motor pinion
gear rotates CW direction
(Right side view), the
Paper return plate
Change lever pushes
Torsion spring 29.1
down the Clutch lever as
right figure and the Clutch
ASF frame
lock tooth is disengaged
from the Clutch gear. As
the result, the LD roller
shaft dose not rotate at all
Spur gear 10.8
because the drive of the
(PF roller)
PF motor is not
transmitted. In this time,
the ASF hopper is also
pushed down by the ASF
hopper release lever on
the LD roller shaft, and
the Paper return plate is
set to avoid that papers are
slipped down from the
paper set position.
<PF motor drive transmission path for ASF home position setting>
This position is the ASF
PF motor pinion gear (CW)
home position.
Combination gear 18.28 (CW)
Spur gear 25.6 (CW)
Combination gear 16.32 (CCW)
* Above transmission pass = seen from the right side of the printer

Operating Principles

Step 1 (ASF Home position)
Hopper & Paper return plate condition
LD roller
ASF hopper
release lever
Hopper
Compression
spring 2.50
Gear rotation direction (Right side view)
Change lever Clutch lock tooth
Clutch lever
Clutch
Clutch gear
Spur gear 10.8 (PF roller) (CCW)
Spur gear 27.2 (CCW)
Change lever (CW)
Spur gear 35.2 (CW)
Figure 2-8. ASF paper loading sequence (Step 1, 2)
Step 2
Hopper & Paper return plate condition
Gear rotation direction (Right side view)
To Front side
Tension spring 0.143
<PF motor driver transmission path for Clutch lever release>
PF motor pinion gear (CCW) Spur gear 10.8 (PF roller) (CW)
Combination gear 18.28 (CCW)
Spur gear 25.6 (CCW) Change lever (CCW)
Combination gear 16.32 (CW) Spur gear 35.2 (CCW)
* Above transmission pass = seen from the right side of the print
Overview
When a paper is loaded
from the ASF unit, the
Change lever moves to the
front side of the printer
with the CCW rotation
(right side view) of the PF
motor pinion gear and
releases the Clutch lever.
As the result, the Clutch
turns back to the
engagement position by
the tension force of the
Clutch lock tooth
Tension spring 0.143.
And, the Clutch gear is
engaged with the Clutch
lock tooth to transmit the
drive of the PF motor as
left figure. In this time,
the Change lever is locked
instantaneously by the
Clutch gear
protrusion on the backside
of the CR unit to change
over from the ASF home
position detection
Spur gear 27.2 (CW)
function to the paper
loading function surely.
Revision A
29