Check the usb settings as below. It may not be allowing firmware by usb.
USB Connection Permission setting
To display: [Utility][Administrator Settings][Security Settings][USB Connection Permission setting]
Specify whether to permit a function that requires the USB Port.
Settings of [Detail Setting]
Settings Description [USB Connection Permission setting] Select whether to collectively restrict functions using the USB Port or configure a setting for each function.
If [Detail Setting] is selected, specify whether to permit the use for each function. For details on settings, refer to the settings of [Detail Setting] shown below.
[Detail Setting] is specified by default.
Settings Description [Authentication Device] Select whether to permit a connection with the authentication unit.
[Allow] is specified by default.[External Keyboard] Select whether to permit a connection with an external keyboard.
[Allow] is specified by default.[External Memory (User)] Specify whether to allow the use of USB memory for functions to be used by the user.
Select whether to collectively restrict the following functions or configure a setting for each function. [Individual Settings] is specified by default.
- [Save Document]: Select whether to enable to save files on USB memory. [Restrict] is specified by default.
- [Print Document]: Select whether to enable to print files from USB memory. [Allow] is specified by default.
- [External Memory Document Scan]: Select whether to enable to save files scanned from USB memory into a User Box. [Restrict] is specified by default.
[External Memory (Administrator)] Specify whether to allow the use of USB memory for functions to be used by the administrator.
Select whether to collectively restrict the following functions or configure a setting for each function. [Individual Settings] is specified by default.
- [Write the Config. from USB]: Select whether to permit a change on the settings of this machine by loading the configuration file saved in USB memory. [Allow] is specified by default.
[External Memory (Service)] Used to specify whether to allow use of a USB memory by the service representative.
Select whether to collectively restrict the following functions or configure a setting for each function. [Individual Settings] is specified by default.
- [Storage data backup]: Select whether to permit the backup or restoration of the storage on this machine. [Restrict] is specified by default.
- [FW Update]: Select whether to allow firmware updating using USB memory. This option is available when [Administrator Settings] - [Security Settings] - [FW Update (USB) Perm. Sett.] is set to [USB Conn. Permission Setting Preference]. [Allow] is specified by default.
[PC Connection] Specify whether to enable to print files from a USB-connected computer.
Select whether to collectively restrict the following functions or configure a setting for each function. [Individual Settings] is specified by default.
- [Print PC]: Select whether to enable to print files from a USB-connected computer. [Allow] is specified by default.
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