Brother HL-L9300CDW Service Manual page 283

5.1 Installing the Firmware (Sub Firmware, Panel Firmware,
Main Firmware, and High-voltage Firmware)
5.1.1 Checking firmware version
Check whether the firmware installed on the machine is the latest version in accordance with
"1.1.1 Checking firmware version" in this
firmware is unnecessary. If the version is not the latest, install all the firmwares.
5.1.2 Installing the firmware
When each installed firmware is not the latest version, install the firmwares in accordance with
"1.1.2 Installing the firmware" in this
5.2 Continuous Adjustments of Density and Registration
Sensor (Function code 73)
Perform continuous adjustments of density and registration sensor in accordance with
Continuous adjustments of density and registration sensor (Function code 73)" in Chapter
chapter. If the version is the latest, installing the
chapter.
4-11
"1.3.22
5.
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