Epson Stylus Photo - Epson STYLUS PHOTO 925 Service Manual

EPSON Stylus Photo 925

Figure 2-11 below shows paper loading from the ASF Unit and operation of each
mechanism.
When the paper is advanced
with the ASF unit, 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 ASF/Pump 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.
The ASF/Pump motor pinion
gear rotates CW direction and the
drive from the ASF/Pump 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 4.96 and the
paper is picked up with the ASF
LD roller.
Operating Principles
Step 1
LD Roller
LD Roller Shaft
Paper Return Plate
Pinion of ASF/Pump
Motor rotates
clockwise
Change Lever
Clutch Gear
Clutch
Lever
Step 3
ASF Hopper
Release Lever
Pinion of ASF/Pump
Motor rotates
clockwise
LD Roller Shaft
ASF Hopper
Release Lever
Figure 2-11. Paper Loading from ASF Unit
Hopper
Pinion of ASF/Pump
Motor rotates
counterclockwise
Printer Front Side
Clutch Lock Tooth
Clutch
Compression
Spring 4.96
ASF Frame
Pinion of ASF/Pump Paper Return Plate
Motor rotates
clockwise
Overview
Step 2
When the ASF/Pump motor is
rotated CCW direction, the Change
lever moves to the printer front side
with the CCW rotation of the ASF/
Pump motor pinion gear and
Tension Spring
releases the Clutch lever. As the
0.143
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 OK
with the Clutch gear to transmit the
ASF/Pump motor drive as right
figure.
Step 4
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 ASF/Pump motor is
interrupted and the drive is not
transmitted to the LD roller side.
Revision A
37