Brother International MFC-7050C Service Manual - Page 19

nozzles/color.

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2.2.2 Ink jet printing and capping mechanisms Frame chassis Carrier ASSY Sensor FPC Carrier home position sensor (Photointerrupter) Ink cartridges Main shaft Star wheel • Exit roller (Viewed from the left) (1) Ink jet printing This equipment uses drop-on-demand ink jet printing. The black cartridge and color cartridge install in the carrier, each of which has an embedded thermal ink-jet head. The dual heads provide color and true black printing without changing ink cartridges. If you replace the black cartridge with an optional photo cartridge (containing black, light cyan, and light magenta ink), the dual heads provide color and photo-quality printing. The ink-jet head of the black cartridge has a total of 208 nozzles. That of the color cartridge and photo cartridge has a total of 192 nozzles for three colors of ink (64 nozzles/color). As the carrier holding the ink cartridges travels at the printing speed, the character generator sends print command pulses to the circuits driving the thermal ink-jet heads embedded in the ink cartridges. III - 8

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2.2.2
Ink
jet
printing
and
capping
mechanisms
Frame
chassis
Carrier
ASSY
Sensor
FPC
Carrier
home
position
sensor
(Photointerrupter)
Ink
cartridges
Main
shaft
Star
wheel
•
Exit
roller
(Viewed
from
the
left)
(1)
Ink
jet
printing
This
equipment
uses
drop
-on
-demand
ink
jet
printing.
The
black
cartridge
and
color
cartridge
install
in
the
carrier,
each
of
which
has
an embedded
thermal
ink
-jet
head.
The
dual
heads
provide
color
and
true
black
printing
without
changing
ink
cartridges.
If
you
replace
the
black
cartridge
with
an
optional
photo
cartridge
(containing
black,
light
cyan,
and
light
magenta
ink),
the
dual
heads
provide
color
and
photo
-quality
printing.
The
ink
-jet
head
of
the
black
cartridge
has
a
total
of
208
nozzles.
That
of
the
color
cartridge
and
photo
cartridge
has
a
total
of
192
nozzles
for
three
colors
of
ink
(64
nozzles/color).
As
the
carrier
holding
the
ink
cartridges
travels
at
the
printing
speed,
the
character
generator
sends
print
command
pulses
to
the
circuits
driving
the
thermal
ink
-jet
heads
embedded
in
the ink
cartridges.
III
-
8