Dell S2815dn tm Smart Multifunction Printer User Guide - Page 528
Problems With Installed Optional Accessory, Wi-Fi Direct Problems, install it. See Report / List.
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Symptom A certificate cannot be set with "Certificate Details". Cause The validity period is invalid. The certificate path is invalid. Although a certificate was imported, The type of the certificate is it is not displayed when selecting incorrect. with "Local Device". Server validation is not operating correctly. The certificate chain is incorrect when importing. Action The validity period of the certificate is invalid. Confirm whether the time setting of the machine is correct, and whether the validity period of the certificate has expired. The certificate chain (path validation) of the imported certificate may not be correctly validated. Confirm whether all of the high-level certificates (Trusted/Intermediate) have been imported and are not deleted, and whether the validity period has expired. To import a certificate for use with the device (own device), import the secret key and a certificate of the PKCS#12 (p12/pfx) format as a pair. Although importing a root certificate (Trusted) to use for server authentication, an Intermediate certificate may be required when validating the path. When executing a certificate file with the certification authority, create the certificate with a format including all paths and then import that certificate. Problems With Installed Optional Accessory If an option does not operate correctly following installation or stops working: • Turn off the printer, wait for 10 seconds, and then turn on the printer. If this does not fix the problem, unplug the printer, and check the connection between the option and the printer. • Print the system settings report to see if the option is listed in the Printer Options list. If the option is not listed, re- install it. See "Report / List." • Ensure the option is selected in the printer driver you are using. The following table lists printer's option and corrective action for related problem. If the suggested corrective action does not correct the problem, call customer service. Problem 550-sheet feeder Wi-Fi Direct Problems Action • Ensure the 550-sheet feeder is correctly installed on the printer. Re-install the feeder. See "Removing the Optional 550-Sheet Feeder" and "Installing the Optional 550-Sheet Feeder." • Ensure the print media is loaded correctly. See "Loading Print Media in Tray1 and the Optional 550-Sheet Feeder" for more information. Problem The device cannot discover the printer. Action The printer may be connected to another device via Wi-Fi Direct. Disconnect the printer and the device. See "Disconnecting Wi-Fi Direct Network." 528 Troubleshooting Guide