Printout Of Maintenance Information (Function Code 77) - Brother HL-4040CN Service Manual

1.4.15 Printout of Maintenance Information (Function code 77)

<Function>
This function allows you to print a list of all maintenance information including printer coverage
information. The following terms are printed on the maintenance information only.
Average Coverage
Engine Sensor Log
Current/ Previously Used
Current Waste Toner
Developing Bias
<Operating Procedure>
(1) Press the
the maintenance mode. Then, press the OK button.
(2) Upon completion of printing, the machine returns to the initial stage of the maintenance
mode.
Average coverage on each color (C/ M/ Y/ K). The average of the
total printed area against the printable are on the Letter-size
paper. The coverage is calculated when up to 1 million pages are
printed, and it is not updated after this.
Operation logs of the following sensors located in the paper path.
KO : Edge sensor
MN : Registration front sensor
RS : Registration rear sensor
EJ : Paper eject sensor
The number of printed pages of the current toner cartridge and the
previous toner cartridge on each color.
The number of printed pages of the current waste toner box.
The current developing bias voltage on each color.
or button to display "MAINTENANCE 77" on the LCD in the initial stage of
Fig. 5-8
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