Epson Stylus COLOR 1160, Service Manual

Page: 34 / 189

EPSON Stylus COLOR 860/1160 Revision C
Operating Principles Overview 34
Figure 2-6. Paper Feeding Mechanism
The printer loads paper at the ASF, which is detected by the PE sensor
attached to the right side of the top frame, and advances it to send the paper’s
leading edge to the halfway of the front paper guide. Then, to correct
deflection, the printer feeds the paper back specified steps toward ASF, and
advances the paper again toward the front paper guide and stops it at the
specified TOF (Top Of Form) position. Once the printer starts printing, it
transports paper using the PF rollers and sub rollers, and as the printer
transports or printing on the tailing 14 mm, it uses a star wheel gear and paper
eject rollers. Like the Stylus COLOR 440/640/740, this printer also provides
this extra printable range of 14 mm from the bottom edge, excluding the bottom
margin of 3mm, by changing the position of the star wheel gear; it has been
shifted by 5
°
from the top of the eject roller toward the front paper guide. Due to
this change, the tailing edge of paper is suppressed, and the printer can
advance paper steadily when printing around the bottom area. See Figure 2-7
next page that shows how paper is transported and parts involved.
Figure 2-7. Paper Transportation
PF Motor
Eject Roller
Front Paper Guide
[Previous Models]
Paper
Star Wheel Assy.
Printhead
Support Roller
PF Roller
Eject Roller
Platen
[Stylus COLOR 860/1160]
Five Degrees
Steady
Bottom margin 3 mm touches
the printhead surface.