General Procedures and Information
6-42 5/08 Phaser 3435
Firmware Upgrade Method
If the firmware needs to be upgraded, the firmware file and usbprn file are requested.
Check that the machine is in a "Ready" condition with the power on. The firmware can be upgrad-
ed by the following methods:
1. CentreWare Internet Services
2. USB Cable
• Save the firmware file to the laptop.
• Connect a USB cable between the port on the rear of the machine and the laptop.
• Drag and drop the upgrade file (.hd) onto the dltool.exe icon.
• A DOS command window will open and the upgrade file will be submitted to the machine.
• The upgrade should complete in approximately 5 minutes.
3. USB Cable Case (Save attached file at certain directory)
• Start Download Rom file "usbprbs b255_706.fls" on Dos Mode and push the enter key.
• Once Download is finished, "Reset Printer" is indicated on LCD window.
• Download finished, power ON/OFF.
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