Brother International HS-5300 Service Manual - Page 46

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2.6 Carriage Drive Mechanism Encoder Inside of main frame PW sensor Carriage guide plate Head Encoder strip ffffI117111TITTFITTIT CR motor Drive pulley /" ' 7_ /--------- / IIIIIIIIIIIIIIII111111111111111111 .IIIIIIIIIIIIIIIIIIIII LJLILJLI .441 4 Idle pulley Timing belt Front Fig. 2.21 Carriage guide shaft The carriage is supported by the guide shaft and guide plate installed on the main frame so that it freely moves in the horizontal direction. A brush DC motor is used as the drive source for the carriage. The timing belt transmits the power of the DC motor to the carriage to move it. An optical encoder is installed on the carriage and a encoder strip is held taut inside the main frame. The optical encoder counts the lines on the encoder strip to control the carriage position and speed. 11-27

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2.6
Carriage
Drive
Mechanism
Encoder
Head
Inside
of
main
frame
CR
motor
/"
'
IIIIIIIIIIIIIIII111111111111111111
.IIIIIIIIIIIIIIIIIIIII
_
7/
--
-------
/
Drive
pulley
PW
sensor
LJLILJLI
.441
Encoder
strip
ffff
I117111TITTFITTIT
Carriage
guide
plate
Timing
belt
Front
Fig.
2.21
Carriage
guide
shaft
4
Idle
pulley
The
carriage
is
supported
by
the
guide
shaft
and
guide
plate
installed
on
the
main
frame
so
that
it
freely
moves
in
the
horizontal
direction.
A
brush
DC
motor
is
used
as
the
drive
source
for
the
carriage.
The
timing
belt
transmits
the
power
of
the
DC
motor
to
the
carriage
to
move
it.
An
optical
encoder
is
installed
on
the
carriage
and
a
encoder
strip
is
held
taut
inside
the
main
frame.
The
optical
encoder
counts
the
lines
on
the
encoder
strip
to
control
the
carriage
position
and
speed.
11-27