Canon - Troubleshooting (FAQ)

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LBP633Cdw / LBP632Cdw

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Common Problems	Machine Does Not Operate Error Indicator Is Lit Solid or Blinking
Messages and Error Codes	Countermeasures for Each Message Countermeasures for Each Error Code
Clearing Paper Jams	About Paper Jams Paper Jams in the Main Unit Paper Jams in a Paper Source If Paper Jams Repeatedly
Problems with the Network	Cannot Connect to the Network Remote UI Is Not Displayed Unsure of the Set IP Address The Machine Dials Up to an Unintended Destination (When a Dialup Router Is Connected to the Network) Cannot Find the Print Server to Connect to Cannot Connect to a Shared Printer
Problems with Wireless LAN Connection	Cannot Connect to the Network (Wireless LAN Connection) Cannot Connect to Wireless LAN and Wired LAN at the Same Time Cannot Switch between Wired LAN and Wireless LAN Not Sure of the SSID or Network Key of the Wireless Router or Access Point to Use SSID of Wireless Router or Access Point to Use Is Not Displayed in Access Point List Connection Is Unstable (Slow or Cannot Be Established) When the Machine Cannot Connect to the Wireless LAN
Problems with USB Connection	Cannot Communicate with Computer through USB Connection Turning the Machine ON Causes the Computer to Turn ON How to Check the Connection Using the Device Manager and How to Cope with Errors
Problems with Printing	Cannot Print Printing Seems to Be Slow No Display of Documents in File Selection Screen (Secure Print) Blank Paper Is Output Printing Results in Text Corruption
When You Cannot Print Properly	Printing Results Are Not Satisfactory Smudge Marks Appear on the Edge of Printouts Smudges Appear on Printouts Afterimages Appear in Blank Areas Toner Smudges and Splatters Appear Printouts Are Faded A Portion of the Page Is Not Printed Streaks Appear/Printing Is Uneven Printouts Become Lightly Colored Color Tone Is Not Proper White Spots Appear Spots Appear Reverse Side of Paper Is Smudged Paper Creases or Curls Paper Creases Paper Curls Paper Is Fed Incorrectly Printouts Are Skewed Paper Is Not Fed/Two or More Sheets Are Fed Together
Other Problems	Cannot Execute Jobs Due to Memory Capacity Shortage A Strange Noise Sounds When the Machine Starts or during Printing
Problems Persist	When a Problem Cannot Be Solved
Questions Related to Drivers	See Troubleshooting (FAQ) for drivers

If you have any questions or queries regarding this machine, or if you wish to request repairs, please contact your dealer or service representative. You can view contact information for Canon dealers from the support page of the Canon website.

https://global.canon/