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EPSON Stylus PHOTO 810/820/830 Revision B
Operating Principles Overview 35
Figure 2-9. ASF paper loading sequence (Step 3, 4)
The PF motor pinion gear
rotates CW direction (right
side view), and the drive of
the PF motor is transmitted
to the LD roller shaft
through the Clutch lock
tooth and the Clutch gear.
After the LD roller pushes
down the Paper return plate
into the ASF frame, the ASF
hopper is released by the
tension force of the
Compression spring 2.50.
And, a paper is picked up
with the frictional force
between the LD roller and
the Pad hopper.
While the LD roller rotates
CW direction (right side
view) continuously, the top of
a paper is loaded to the PF
roller. In this rotation, the
ASF hopper returns to the
open position and the Paper
return plate is released from
the LD roller. In this time,
this plate returns papers to the
stand-by position in ASF unit
for next paper loading
operation.
Then, when the rolling LD
roller & the Clutch come at
the above “Step1” position,
the Clutch lever is locked
with the Change lever again.
In this time, the drive of the
PF motor is interrupted and
the drive is transmitted only
to the PF roller side for the
paper feeding sequence.
Step 3
Step 4
Hopper & Paper return plate condition
Hopper & Paper return plate condition
ASF hopper
release lever
Compression
spring 2.50
ASF frame
Paper return
plate
Gear rotation direction (Right side view)
ASF hopper
release lever
LD roller shaft
<PF motor driver transmission path for picking up a paper>
PF motor pinion gear (CW)
→
Spur gear 10.8 (PF roller) (CCW)
→
Combination gear 18.28 (CW)
→
Spur gear 27.2 (CCW)
→
Spur gear 25.6 (CW)
→
Change lever (CW)
→
Combination gear 16.32 (CCW)
→
Spur gear 35.2 (CW)
* Above transmission pass = seen from the right side of
the printer
Gear rotation direction (Right side view)
<PF motor driver transmission path for paper loading>
PF motor pinion gear (CW)
→
Spur gear 10.8 (PF roller) (CCW)
→
Combination gear 18.28 (CW)
→
Spur gear 27.2 (CCW)
→
Spur gear 25.6 (CW)
→
Change lever (CW)
→
Combination gear 16.32 (CCW)
→
Spur gear 35.2 (CW)
* Above transmission pass = seen from the right side of
the printer
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