Epson Stylus Color, Service Manual

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Chapter2 Operating Principles
Rev. A
2-13
In the paper pick up mechanism of EPSON Stylus Photo, same mechanism as Stylus Color IIs/820
are applied. This mechanism changes adjoined lines of gear by colliding trigger lever with carriage
unit, and convey the motive power on the paper feed assembly to the ASF side(paper roller). The figure
below shows mechanism with explanation.
[2. Paper pick up mechanism]
When the Load/Eject button is pressed or printing order is input, the carriage unit moves to
the left edge and collides with paper pick up trigger lever. When the carriage collides with this trigger
level, a planetary gear located on the same axis is also pushed at the same time and conveys
the motive power on the paper feed assembly to the adjoined gear line side for ASF drive.
[3. Paper feed mechanism]
After papers in the ASF receive controls from pick up and multi feed prevention mechanism, they are
sent to the printer inside. The papers picked up by paper roller in the ASF goes to between paper feed
assembly and roller support. Also, the eject roller pushes out the paper completely to the end and the
roller support drops the paper in the eject tray. The eject roller is driven with an eject paper notched roller
as pair where is located on the paper eject roller. Paper eject notched roller solves the deflection of paper
that is in between eject notched roller and paper eject roller and always keep a certain space between the
print head and paper surface. The figure below shows paper feed mechanism.
ASF Roller Drive Gear
Planetary Gear
ASF Roller Transmission Gear
PF Roller Drive Gear
PF Roller Transmission Gear
PF Motor Pinion Gear
Eject Roller
Transmission Gear
Eject Roller Drive Gear
Paper Pick Up
Trigger Lever
Figure 2-10. Paper Pick Up Mechanism
Eject Notched Roller
Eject Roller
PF Roller
Support Roller
Paper
Figure 2-11. Paper Feed Mechanism