I have a acanon pixma mp210.. amber alarm light

Error 5100 is Carriage error.Possible problems in:
- Carriage unit
- Timing **** strip film
- Logic board assembly
- Carriage motor
First, make sure there is no paper jam anywhere in the machine.. look inside, rear, where the paper tray (output) is, etc to see if you find any shreds or torn paper that may have gotten stuck and you didn't see.Look carefully in the zone of Purge unit, using flashlight in the right side on printer.If this not help your printer need service.