Brother MFC 5890CN - Color Inkjet - All-in-One, Service Manual

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7-26 Confidential
[ 8 ] Print out a total check pattern
Before starting the operation below, be sure to set A4-size paper in the paper tray for printing
check patterns.
(1) On your PC, run "filedg32.exe" in the folder created in Section 7.1.1 .
The Filedrgs window appears as shown below.
(2) Drag and drop the "qualbh9.prn" onto the Brother Maintenance USB Printer driver icon in
the Filedrgs window shown above.
The machine displays the "RECEIVING DATA" on the LCD and prints out the "Total
Quality Check Pattern" (see the next page for a sample printout).
(3) Check the printed check pattern. If any problem is found, go back to the related item (any
of [ 4 ] through [ 7 ] above) and make adjustments again.
(4) Repeat steps (2) and (3) until no problem is found.
A: Leading-edge print start position Check that the top margin is within 3±1 mm and the first printed line is not
inclined.
B: Checking for horizontal streaks Check for no banding or black/white horizontal streaks.
C: Margin adjustment for borderless
printing (600 dpi)
Check that there is no left or right margin in 600 dpi.
Go back to
Section 7.2 [ 7 ] .
D: Paper feed roller adjustment Check the result of PF roller compensation. Check that the section number
with the lightest checkered pattern is within ±2. Go back to
Section 7.2 [ 5 ] .
E: Margin adjustment for borderless
printing (1200 dpi)
Check that there is no left or right margin in 1200 dpi.
Go back to
Section 7.2 [ 7 ] .
F: Adjustment of vertical print lines
(450 dpi, 600 dpi, and 1200 dpi)
Check that #2 block with "OK" shows full alignment in each of 450 dpi, 600
dpi, and 1200 dpi. Go back to
Section 7.2 [ 6 ] .
G: Head positioning adjustment Check the result of the head skew adjustment. Check that the section number
with the lightest checkered pattern is within ±2. Go back to
Section 7.2 [ 4 ] .
H: Margin adjustment for borderless
printing (600 dpi)
Check that there is no left or right margin in 600 dpi.
Go back to
Section 7.2 [ 7 ] .
I: Adjustment of discharging
conditions of all nozzles
Check that all nozzles discharge ink normally.
J: Checking for vertical streaks Check for no white/black vertical streaks.
K: Margin adjustment for borderless
printing (1200 dpi)
Check that there is no left or right margin in 1200 dpi.
Go back to
Section 7.2 [ 7 ] .
L: Paper ejection roller adjustment Check the result of the exit roller compensation. Check that the section
number with the lightest checkered pattern is within ±2. Go back to
Section
7.2 [ 5 ] .
M:Margin adjustment for borderless
printing (trailing edge)
Check that the bottom margin is within 5±2 mm. Go back to Section 7.2 [ 7 ] .