Printout Of Test Pattern (Maintenance Mode 09) - Brother HL-J6000DW Service Manual

1.3.4 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
76)" to perform head cleaning.
< Operating Procedure >
(1) Press the 0 and 9 keys in this order in the initial stage of the maintenance mode.
(2) Press the Mono Start key. The machine displays "PRINTING" on the LCD and
prints out a test pattern.
If no recording paper is loaded in the paper tray, an error is displayed.
(3) Upon completion of printing, the machine returns to the initial stage of the
maintenance mode.
Note: When recording paper runs out during printing, load recording paper in the paper
tray and open/close the document scanner, and printing resumes.
■ Test Pattern
"1.3.28 Purge Operation (Maintenance mode
5-12
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