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Stylus C40UX/C40SX/C20UX/C20SX Revision A
Operating Principles Overview 34
Figure 2-13. ASF Paper Loading Sequence
When the paper is advanced with
the PF roller, Change lever push
down the Clutch lever as right
figure and the Clutch lock tooth is
disengaged from the Clutch gear.
As the result, the drive from the PF
motor is interrupted and the LD
roller dose not rotate.
This position is the ASF home
position.
The Paper return plate is set to
avoid that the paper is slipped
down from the paper set position.
When the paper is loaded (pick up) from
the ASF unit, the Change lever moves to
the printer front side with the CCW
rotation 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
Tension spring 0.143.
And the Clutch lock tooth is engaged
with the Clutch gear as right figure.
The PF motor pinion gear rotates
CW direction and the drive from the
PF motor is transmitted to the ASF
LD roller shaft through the Clutch
lock tooth and the Clutch gear.
The ASF hopper release lever rotates
with the ASF LD roller and release
the ASF Hopper. The ASF hopper is
pushed with the Compression spring
2.11 and the paper is picked up with
the ASF LD roller.
The ASF LD roller rotates CW direction
moreover and the Paper return plate is
stored under the ASF frame.
The paper is advanced up to the PF roller
.
and the ASF LD roller & the clutch rotate
to the “Step1” position. The Clutch lever
is locked with the Change lever.
The drive from the PF motor is
interrupted and the drive is transmitted to
the PF roller side.
Step 1
Step 2
Step 3
Step 4
Change lever
Clutch
LD roller
Hopper
Paper return plate
Clutch gear
LD roller shaft
Printer front side
PF roller CW
rotation
Tension spring 0.143
PF roller CCW
rotation
Clutch lock tooth
PF roller CCW
rotation
LD roller shaft
ASF Hopper
release lever
Compression
spring 2.11
ASF Frame
Paper return plate
PF roller CCW
rotation
Clutch lever
ASF hopper
release lever