Brother International HS-5300 Service Manual - Page 125

Maintenance, frame, Driver, Extension, Voltage, meter, Screw, driver, Variable, register

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PR98064 5.3 Head Drive Voltage Adjustment When the Print head or the Power supply PCB ASSY is replaced, the following adjustment is required. (1) Go to the Head voltage adjustment in the Test 2 Mode. (Refer to Chapter 4, section 3.2.5 Test 2 Mode.) (2) Connect a Voltage meter to the connector on the Driver PCB ASSY. Maintenance frame ASSY Driver PCB Extension wire Voltage meter Fig. 5.8 (3) Adjust the head drive voltage to be adjusted by the variable resistors on the Power supply PCB ASSY. Adjust the voltage for 600 dpi first and then 300 dpi as the voltage for 300 dpi is made by adding a voltage onto the 600 dpi voltage. Screw driver Fig. 5.9 5.4 Offset, TOF and LF Adjustment Variable register 300 dpi Variable register 600 dpi Head Rank A B C D E F G 600 dpi 35.9 V 34.6V 33.4V 32.2V 31.0 V 29.7V 28.5 V 300 dpi 41.8 V 40.5V 39.2V 37.9V 36.6 V 35.3V 34.0 V When the Print head or the Main PCB ASSY is replaced, adjust the Offset, TOF, LF and nozzle alignment by using the support tool provided separately. III-73

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PR98064
5.3
Head
Drive
Voltage
Adjustment
When
the
Print
head
or
the
Power
supply
PCB
ASSY
is
replaced,
the
following
adjustment
is
required.
(1)
Go
to
the
Head
voltage
adjustment
in
the
Test
2
Mode.
(Refer
to
Chapter
4,
section
3.2.5
Test
2
Mode.)
(2)
Connect
a
Voltage
meter
to
the
connector
on
the
Driver
PCB
ASSY.
Maintenance
frame
ASSY
Driver
PCB
Extension
wire
Voltage
meter
Fig.
5.8
(
3
)
Adjust
the
head
drive
voltage
to
be
adjusted
by
the
variable
resistors
on
the
Power
supply
PCB
ASSY.
Adjust
the
voltage
for
600
dpi
first
and
then
300
dpi
as
the
voltage
for
300
dpi
is
made
by
adding
a
voltage
onto
the
600
dpi
voltage.
Fig.
5.9
Screw
driver
5.4
Offset,
TOF
and
LF
Adjustment
Variable
register
300
dpi
Variable
register
600
dpi
Head
Rank
600
dpi
300
dpi
A
35.9
V
41.8
V
B
34.6V
40.5V
C
33.4V
39.2V
D
32.2V
37.9V
E
31.0
V
36.6
V
F
29.7V
35.3V
G
28.5
V
34.0
V
When
the
Print
head
or
the
Main
PCB
ASSY
is
replaced,
adjust
the
Offset,
TOF,
LF
and
nozzle
alignment
by
using
the
support
tool
provided
separately.
III
-73