Adf Performance Test (Maintenance Mode 08); Printout Of Test Pattern (Maintenance Mode 09); Adf Performance Test - Brother DCP-J552DW Service Manual

1.3.4 ADF Performance Test (Maintenance mode 08)

<Function>
The function counts the documents fed by the automatic document feeder (ADF) and displays the
count on the LCD for checking the ADF performance.
<Operating Procedure>
(1) Set documents on the ADF unit.
The LCD continues to display "■■ MAINTENANCE ■■■".
(2) Press the [0] and [8] keys in this order in the initial stage of the maintenance mode.
The machine feeds the documents in and out while counting them and displaying "ADF
CHECK P.**" on the LCD.
(** shows the current count.)
(3) Press the [Stop] or the [X] key to return the machine to the initial stage of the maintenance
mode.
Note If no document is set on the ADF, the machine displays "NO DOCUMENT" on the LCD
and returns to the initial stage of the maintenance mode.

1.3.5 Printout of Test Pattern (Maintenance mode 09)

<Function>
This function prints out a test pattern (Print Quality Check sheet) to allow the service personnel to
check the print quality, together with the serial number.
If any print quality problem is found, use
chapter to perform head cleaning.
<Operating Procedure>
(1) Press the [0] and [9] keys in this order in the initial stage of the maintenance mode.
The machine displays "PRINTING" on the LCD and prints out a test pattern.
If no recording paper is loaded in the paper tray, printing will be canceled.
(2) Upon completion of printing, the machine returns to the initial stage of the maintenance mode.
"1.3.29 Purge Operation (Maintenance mode 76)" in this
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