update kyocera firmware with linux

USE THIS AT YOUR OWN RISK! FIRMWARE UPDATES CAN ALWAYS DESTROY YOUR PRINTER IRRECOVERABLY.

This is how I updated a Kyocera FS-1020d printer firmware using Ubuntu 12.04:

• Connect the printer using a parallel port cable (usb/printserver were not testet)
• Eventually switch parallel port to normal mode
• Disconnect network/usb cables
• Make sure no other print jobs may be started
• Add printer to cups and give it a name (here: kyo_lpt1)
• Switch the printer off and on
• Get the latest firmware by performing some google search (I found 154.08-11)

• Now, extract the firmware, which is named B11K15408.bcmp in my case
• Download and edit the file download.sh according to your needs or do it by hand:
• Get into maintenance mode: echo "!R! UPGR'SYS';EXIT;" | lpr -P kyo_lpt1 -oraw
• Upload new firmware: lpr -P kyo_lpt1 -oraw B11K15408.bcmp
• WAIT about 15 minutes (for me all 4 LEDs were blinking slowly at the end. This may or may not indicate a successful upload)
• Switch your printer off and on
• Show currently installed firmware: echo "!R! frpo init; stat1;exit;"  | lpr -P kyo_lpt1 -oraw

• download.sh