HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
Confidential
6-3
Installing the printer driver
To identify terminals connected via USB interface, the PC requires the corresponding
virtual USB devices to be implemented by driver. If you connect any number of printers to
your PC, therefore, the same number of virtual USB devices will be automatically
configured on your PC. To prevent virtual USB devices from being configured limitlessly,
use the unique driver installation procedure described below that enables your PC to
identify terminals via single virtual USB device.
NOTE:
Once this installation procedure is carried out for the PC, no more driver installation will be
required for that PC to identify machines.
1. Unplug the USB cable, if the printer is connected to the PC.
2. (HL-5240/5250DN)
Turn the power supply of the printer on while holding down the Go button and the Job
Cancel button. Make sure that all LEDs are on. The Status LED lights up when
releasing the Go button and the Job Cancel button.* Press the Go button for five
times (ROM 0). A few seconds later, the printer goes into the ROM rewriting mode.
* The printer goes back to the normal mode automatically when the printer remains
no operation while the Status LED is lighting.
(HL-5270DN/5280DW)
Turn the power supply of the printer on while holding down the Set key and the Back
key. Select the appropriate mode by pressing the ◄ ►keys.
Make sure that “PRL->ROM0 W” on the LCD panel and press the Set key to be
set. “Send BLF file..” message appears on the LCD panel. A few seconds later, the
printer goes into the ROM rewriting mode.
3. Connect the USB cable with the printer. The following screen appears, indicating the
detection of new hardware device by the system.
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