Hi kk0902,
Becuase there isn't a paper jam, next please clean the encoder:
https://support.usa.canon.com/infocenter/index?page=content&id=ART143651
If the 5100 error persists, your PIXMA MX532 would requier service. You are eligible for Canon's Upgrade Program. This is for out of warranty units which have been diagnosed to require service, or for some reason are incompatible with a new or upgraded system. This option allows you a one-time opportunity to purchase a replacement product, discounted from the list price.
To help you get up and running quickly, we also offer free standard shipping (if the order is completed by 12:30PM ET). If you would like to take part in this option, please call our Sales Department at (866) 443-8002. They're available weekdays and Saturdays after 11 AM ET (8 AM PT). Let them know you have been working with technical support and the Canon Upgrade Program was offered.
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