Confidential
Disassembly/Reassembly 87
Epson WF-5690/4640/4630/5620/5190/5110 series Revision D
4.3 Firmware Update
This section describes how to update the firmware of the printer.
Firmware update procedure
Case of WF-5690/4640/4630/5620 series
1. From a Power-off status, push “Power on button” while pushing “Home button”, “No.1 button” and
“Stop button”(Until a message is displayed on the LCD)
<Panel condition when PC status normally>
The following message is displayed on the LCD and all LEDs light.
2. Start the exclusive firmware update program and select the latest firmware data to rewrite it.
3. After the firmware update is completed and the following message is displayed and also all LEDs light, push
“No.0 button” to turn off the printer.
The start-up method of the firmware update mode differs depending on the panel type
mounted on the printer, so refer to the appropriate start-up method.
If any error occurs during a firmware update and all LEDs light, disconnect the power
cable and update it again.
Power on button Home button No.1 button Stop button
EPSON PRINTER ROM
Program Update Mode
IPLx
Program Update Mode
FINISHED
ROM1 FIXSUM xxxx
ROM1 VERSON xxxx
ROM2 FIXSUM xxxx
ROM2 VERSON xx.xx.xxx
ROM3 FIXSUM xxxx
ROM3 VERSON xxxxxx
No.0 button