Printout Of Maintenance Information (Function Code 77) - Brother HL-4140CN Service Manual

1.4.21 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 items are those listed in the second page of the
The following items are printed on the maintenance information only.
Average Coverage
Drum Information
Power On Time
Power On Count
Current/Previously Used
Current Waste Toner
Developing Bias
Engine Sensor Log
Status Log
Temperature/Humidity
Note:
The error data items stored in the error history are different from those in the second page
of Printer Settings.
<Operating procedure>
(1) Press the
the maintenance mode. Then, press the OK button.
(2) Upon completion of printing, the printer returns to the initial state of the maintenance mode.
Total: Accumulated coverage
Current: Coverage by the toner cartridge which is currently used
Number of prints and count value of the drum which is
currently used.
Elapsed time while the power is ON.
Number of times when the power is turned ON.
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.
Operation logs of the following sensors located in the paper path.
MN: Registration front sensor
RS: Registration rear sensor
EJ: Paper eject sensor
KO: T1 paper edge sensor
Information for those in charge of development.
Ambient temperature/ humidity during printing.
or button to display "MAINTENANCE 77" on the LCD in the initial state of
5-40
Printer Settings.
Confidential