Epson Stylus Color 740 Service Manual

EPSON Stylus COLOR 440, 640, and 740 Chapter 2 Operating Principles
35
2.1 Printer Mechanism
The printer mechanism includes all the mechanical components that
enable printin
g
to take place. These components include the printhead
(
PH
)
and carria
g
e
(
CR
)
unit, the paper feed
(
PF
)
and paper e
j
ect rollers,
the auto-sheet feeder
(
ASF
)
, and the pump unit which is used in
printhead cleanin
g
operations.
Like some previous versions of EPSON ink
j
et printers, the paper feed
motor in the St
y
lus COLOR 440, 640, and 740 is used not onl
y
for paper
feedin
g
, but also to pump ink and drive the auto-sheet feeder. The
direction of the paper feed motor, alon
g
with the position of the carria
g
e,
determines which operations are performed. Fi
g
ure 2-1 shows how the
main components of the printer mechanism interact.
Figure 2-1. Printer Mechanism Block Diagram
C a rria g e M o to r
Paper Feed
Motor
C apping
M echanism
Paper Load
Trigger
Carriage Unit
(P rinthead)
A uto-S heet
Feeder (A S F)
Pum p
Tim ing Belt
PF Roller

Epson Stylus Color 740 Specifications

General

Brand	Epson
Model	Stylus Color 740
Category	Printer
Language	English