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e-STUDIO2006/2306/2506/2007/2307/2507/2303A/2303AM/2803AM/2309A/2809A
ERROR CODE AND TROUBLESHOOTING
8 - 91
8.5
Other Errors
8.5.1
When “SET FUSER UNIT” is displayed.
When the signal for installing the fuser unit cannot be detected with the MAIN board, “SET FUSER
UNIT” appears.
In this case, check the following.
1. Check that the screw fixing the fuser unit is not loose.
2. Check for conductivity between CN11's pins 4 and 9
3. Replace the MAIN board.
8.5.2
Countermeasure to "BIOS MODE" displayed on Control Panel
If the MFP stops operating while "BIOS MODE" is being displayed on the control panel, take the
countermeasure described in this procedure.
[ 1 ] Phenomenon
• "BIOS MODE" appears on the control panel as shown below and the MFP stops operating.
• Once this appears, it will not disappear even after the power is turned OFF and then back ON.
Fig.8-25
Notes:
"*BIOS MODE*" is displayed on the upper line, and "Date and firmware version" and "WAIT
FIRMWARE UPDATE" are alternately displayed on the lower line.
[ 2 ] Countermeasure
First, reinstall the system ROM using the PC update tool. Then reinstall the engine ROM and Fax ROM
using the PC update tool or a USB device.
Procedure:
(1) While "BIOS MODE" is being displayed, connect the MFP and PC with a USB cable.
(2) Reinstall the system ROM using the PC update tool.
(3) After the reinstallation is completed, turn OFF the power of the MFP.
(4) Next, reinstall the engine ROM and the FAX ROM.
Refer to P. 11-2 "11.2 Firmware Updating with USB Device"
Refer to P. 11-8 "11.3 Firmware Updating with PC Update Tool"
(5) After the reinstallation is completed, turn OFF the power of the MFP and disconnect the USB
cable or the USB device. Turn ON the power of the MFP and check that it starts correctly.
*BIOS MODE*
20XX/XX/XX V0.XX
*BIOS MODE*
WAIT FIRMWARE UPDATE