Brother HL-L8250CDN Service Manual page 324

1.3.20 Color test pattern (Function code 71)
<Function>
This function is used to print the pattern of each color and check if there is any dirty on or
failure in the belt unit, developer roller, and exposure drum, etc.
<Operating procedure>
Model without touch panel
(1) Press the
"MAINTENANCE 71" on the LCD in the
initial state of the maintenance mode.
Then, press the OK key. "2D3S
YMCBWKW_A" is displayed on the LCD.
(2) Referring to the
press the
desired print pattern and press the OK
key. When "2D3S YMCBWKW_A" is
selected, "PRINTING" is displayed on
the LCD and a test pattern printing is
started. When a print pattern other than
"2D3S YMCBWKWK_A" is selected,
"SELECT: A4" is displayed on the LCD.
(Following steps (3) to (6) described
below, select an option in each item
and perform test pattern printing.)
(3) Referring to the
press the
desired paper size and press the OK
key. "SELECT: PLAIN" is displayed on
the LCD.
(4) Referring to the
table, press the
the desired media specifications and
press the OK key. "SELECT: SX" is
displayed on the LCD.
(5) Referring to the
press the
desired print type and press the OK
key. "SELECT: 1PAGE" is displayed on
the LCD.
(6) Referring to the
be printed>
key to select the desired number of
pages to be printed and press the OK
key. "PRINTING" is displayed on the
LCD and the test pattern starts to be
printed under the selected items for
paper feed test.
(7) When printing is finished, the screen
returns to the print pattern display. To
print the test pattern again, press the
OK key.
(8) Press the Cancel key to return the
machine to the initial state of the
maintenance mode.
Note:
If printing fails, the error indications in the
and printing is cancelled. To print again, refer to the measures in the table and remove the
cause of the error. Then, press the Go key for the model without a touch panel and the
Mono key for the model with a touch panel. "PRINTING" is displayed on the LCD and the
color test pattern is printed.
or key to display
<Print pattern> table,
or key to select the
<Paper size> table,
or key to select the
<Print specifications>
or key to select
<Print type> table,
or key to select the
<Number of pages to
table, press the or
5-41
Model with touch panel
(1) Press the 7 and 1 keys in this order in
the initial state of the maintenance
mode. "2D3S YMCBWKW_A" is
displayed on the LCD.
(2) Referring to the
press the
desired print pattern and press the SET
key. When "2D3S YMCBWKW_A" is
selected, "PRINTING" is displayed on
the LCD and a test pattern printing is
started. When a print pattern other than
"2D3S YMCBWKWK_A" is selected,
"SELECT: A4" is displayed on the LCD.
(Following steps (3) to (6) described
below, select an option in each item
and perform test pattern printing.)
(3) Referring to the
press the
desired paper size and press the SET
key. "SELECT: PLAIN" is displayed on
the LCD.
(4) Referring to the
table, press the
the desired media specifications and
press the SET key. "SELECT: SX" is
displayed on the LCD.
(5) Referring to the
press the
desired print type and press the SET
key. "SELECT: 1PAGE" is displayed on
the LCD.
(6) Referring to the
be printed> table, press the
key to select the desired number of
pages to be printed and press the SET
key. "PRINTING" is displayed on the
LCD and the test pattern starts to be
printed under the selected items for
paper feed test.
(7) When printing is finished, the screen
returns to the print pattern display. To
print the test pattern again, press the
Mono key.
(8) Press the X key to return the machine
to the initial state of the maintenance
mode.
<Error message> table are displayed on the LCD
<Print pattern> table,
or key to select the
<Paper size> table,
or key to select the
<Print specifications>
or key to select
<Print type> table,
or key to select the
<Number of pages to
or
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