Canon imageCLASS LBP121dn - Page 276

Cannot Print (Wireless LAN) ...................................................................................................................
314
Cannot Print (Wired LAN) ....................................................................................................................... 316
Cannot Print (USB Connection) .............................................................................................................. 317
Cannot Print (via Print Server) ................................................................................................................ 318
Printing Is Slow ............................................................................................................................................. 319
Management Functions and Environment Settings ....................................................................................... 320
Cannot Access Remote UI ............................................................................................................................. 321
Changing the Time Until Sleep Mode ........................................................................................................... 322
Lost Department ID or PIN for the Administrator ......................................................................................... 323
Checking the Items That Can Be Congured on the Machine and Their Settings ......................................... 324
A Message Appears ........................................................................................................................................... 325
An Error Code Is Displayed ................................................................................................................................ 336
If the Problem Persists ...................................................................................................................................... 339
Troubleshooting
269