Canon TS5100 series Online Manual page 420

1890
Cause
Protective material or tape may still be attached to FINE cartridge holder.
What to Do
Open the scanning unit / cover and make sure the protective material and tape have been removed from
the FINE cartridge holder.
If the protective material or tape is still there, remove it and close the scanning unit / cover.
If this does not solve the problem, contact your nearest Canon service center to request a repair.
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