Cleaning the encoder film of the printer may resolve the 5100 error. To clean the encoder film, please follow the steps located at the link below:
If you continue to experience the 5100 error after cleaning the encoder film, the printer will require servicing. Please Contact Us for servicing options.
It is recommended that you contact one of Canon's Technical Support Representatives. To contact a Technical Support Representative, please use the link below:
My printer is not new and needed the cartridges cleaned. I have done all that needed doing and it still doesn't work. Now the cartridge carriage won't come out completely. I have checked for paper problems and object problems; there are none. How do I reset my printer? It is a Pixma MX922.