Epson EPL-N4000 - Paper Path

EPSON EPL-N4000/EPL-N4000+ Chapter 2 Operating Principles
Rev.B 56
2.2 Paper Path
The Paper Path is the physical route that a sheet of paper takes throu
g
h
the printer durin
g
a print cycle; from leavin
g
the Paper Cassette to
arrivin
g
at the Output Tray. Rubber rollers and other components drive
the paper alon
g
the Paper Path.
Figure 2-5. Print Cycle
A sheet of paper may be fed from either Tray 1, Tray 2, or from the MSI.
At the start of a print cycle the Nud
g
er Roll moves a sheet of paper into
the Feed Roll. The Feed Roll moves a sin
g
le sheet of paper out of Tray
1/Tray 2/MSI and toward the Re
g
istration Roll. The Retard Rolls in Tray
1 and Tray 2 or the Retard Pad in the MSI made sure that only one
sheet of paper is fed. If the paper was fed from Tray 2 or the MSI the
Take Away Roll drives the paper to the Re
g
istration Roll. The
Re
g
istration Roll ali
g
ns the lead ed
g
e of the paper with the lead ed
g
e of
the ima
g
e on the drum. The Re
g
istration Roll then drives the paper into
the Drum/BTR area. The rotation of the Drum and BTR drive the paper
into the Fuser where the Heat and Pressure Rolls drive the paper into
the Offset/Pinch Roll.
Durin
g
simplex printin
g
the Offset Roll drives the paper into the Output
tray. Durin
g
duplex printin
g
, the Offset Roll rotation is reversed and the
Offset and Exit Roll drives the paper into the Duplex Module.
Figure 2-6. Paper Path
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