When the Machine Cannot Be Operated

If a message is displayed on the screen, check the message.
When a Message Appears and the Machine Cannot Be Operated
When confirming or changing the settings in [Settings], press [Home] () after completing the operation to close [Settings].

When the Machine Does Not Respond Correctly to an Operation on the Control Panel

Condition	Cause	Solution and reference
The screen of the control panel is not lit.	The machine is in the sleep mode.	Touch the screen.
Nothing is displayed when you touch the screen.	The power of the machine is turned off.	Check that the main power indicator is not lit, and then turn on the main power of the machine. Turning On and Off the Power
The power of the machine does not come on.	The power cable is unplugged from the wall outlet.	Connect the ground wire, and plug the power cable into the wall outlet. Installation Requirements After Moving the Machine
	The machine is connected to an extension cord.	You cannot use an extension cord. After checking that the screen is not lit when you touch it and the main power indicator is unlit, remove the extension cord and plug the power cable directly into the wall outlet.
	There may be a problem with the wall outlet.	After checking that the screen is not lit when you touch it and the main power indicator is unlit, plug the power cord into a confirmed operating wall outlet.
Only the copy icon is displayed when the machine is turned on.	The functions other than the copy function are starting up.	The time required for a function to start up varies depending on the function. Wait a while.
Only some of the menu items are displayed when you press [Settings] after turning on the power of the machine.	The functions other than the copy function are starting up.	The time required for a function to start up varies depending on the function. More items on the menu in [Settings] are displayed as the functions start up. Wait a while.
The login screen is displayed.	Basic Authentication, Windows Authentication, or LDAP Authentication is specified.	Enter the login user name and password, and then press [Login]. For the login user name and password, consult the user administrator. Logging In from the Control Panel
The User Code entry screen is displayed.	User Code authentication is specified.	Enter the User Code, and press [OK]. Consult the user administrator for the user code.
A function is not executed, or you cannot perform an operation.	Another function that cannot be used with the specified function at the same time is being executed.	Wait for the function in progress to end, and then perform the next operation. For details about functions that cannot be used at the same time, see the following section: Function Compatibility When a backup of the address book is being created using Web Image Monitor or another method, the next function is executed after the backup is completed.
The key is unresponsive, or another key is activated.	A malfunction is temporarily occurring on the machine.	Turn off the power of the machine, wait for 10 seconds or more after confirming that the main power indicator is turned off, and then turn on the power again. Turning On and Off the Power
You cannot interrupt copying even after pressing [Stop] while the copy function is operating.	A malfunction is temporarily occurring on the machine.
You cannot interrupt copying or scanning even after pressing [Stop], and the login screen is displayed.	Basic Authentication, Windows Authentication, or LDAP Authentication is specified, and the user who started the copying or scanning operation has logged out.	Log in to the machine as the user who started the copying or scanning operation or as the machine administrator, and press [Stop].
Help is not displayed when you press [Help] ().	The application that is currently in use does not support the help function, or is grayed out because `“Paper Misfeed”` or another message is being displayed.	The help function cannot be used when is grayed out. Close the application or message, and then try again.
Help is not displayed when you press [Help] ().	is grayed out because the user does not have permission to use the browser function.	The help function cannot be used if the user does not have permission to use the browser function. If is always grayed out, consult the user administrator to check whether you have permission to use the browser function. The user administrator can change the access permissions in the address book. Confirming the Available Functions
The screen changes to Web Browser when you press [Help] (), but the help content is not displayed.	The machine is not connected to the network correctly.	Check if you can display a web page in [Web Browser]. If a web page cannot be displayed, check that the machine is connected to the network correctly. Selecting the Network Connection Method
	The browser is configured not to save cookies.	Check that the [Web Browser][Menu] () [Settings] [Privacy & security] [Accept cookies] check box is selected.
The screen remains turned on and the machine does not enter the sleep mode when you press [Energy Save] ().	The machine is in a condition that does not allow the machine to enter the sleep mode.	Check the conditions in which the machine does not enter the sleep mode. Turning On and Off the Power
Originals are misfed in the ADF.	More than sixty originals were placed in the ADF forcibly.	Remove all the originals, open and close the cover of the ADF, and then place originals in the ADF again. Do not forcibly load originals into the ADF. If the problem persists, reduce the number of originals that you place in the ADF.
The machine does not shut down when more than four minutes have passed after you press the main power switch.	The shutdown operation could not be performed normally.	Press the main power switch again.
The power of the machine is turned off automatically.	[Main Power Off] is specified in the weekly timer.	Check [Weekly Timer Easy Settings] and [Weekly Timer Detailed Settings] in the following setting items. Settings screen type: Standard [Settings][System Settings][Date/Time/Timer][Timer] Settings screen type: Classic [Settings][Machine Features Settings][System Settings][Timer Settings] tab

When the Machine Does Not Respond Correctly to an Operation from a Computer

Condition	Cause	Solution and reference
When using the address book from Device Manager NX, an incorrect password error is displayed even when you enter the correct login user name and password.	A certificate is not installed on the computer when SSL/TLS is enabled on the machine.	Install the certificate on the computer. Consult your network administrator for the certificate.
	Settings screen type: Standard An item other than [Simple Encryption] is specified in [Extended Security Settings]. Settings screen type: Classic An item other than [Simple Encryption] is specified in [Extended Security].	Specify [Simple Encryption] in "Driver Encryption Key:Encryption Strength" in the following setting items. Settings screen type: Standard [Settings][System Settings][Settings for Administrator][Security][Extended Security Settings] Settings screen type: Classic [Settings][Machine Features Settings][System Settings][Administrator Tools] tab [Extended Security]
You cannot access the machine using Web Image Monitor.	There is a problem with the connection between the machine and the computer.	Check the cable connecting the machine and the computer, and disconnect and then connect the cable again. Also, check the connection to the hub or router, and turn off and on the power of the device if possible. Next, turn off the power of the machine, wait for 10 seconds or more after confirming that the main power indicator is turned off, and then turn on the power. Turning On and Off the Power
You cannot access the machine using Web Image Monitor.	A proxy server is not specified.	In the proxy setting of the Web browser, specify the IP address of the machine as an exception. You can check the IP address in [Check Status] "Network".
"There is a problem with this website's security certificate." is displayed and you cannot connect to the machine when accessing the machine using Web Image Monitor.	[Permit SSL / TLS Communication] is set to [Ciphertext Only].	Click [Continue to this website (not recommended).]. To specify not to display the message, log in to the machine in the administrator mode, and specify [Ciphertext / Cleartext] in [SSL/TLS] "Permit SSL / TLS Communication" under [Device Management][Configuration] "Security".
	"https" is entered at the beginning of the URL.	Do not enter "s" after "http".