The company said the power outage initially shut down all operations, however the contingency plan put in place ensured that all work was completed in time.
Pat Martell, group operations director at the East Anglia printer, said: "We were able to generate enough power ourselves to complete the work with the help of some overtime work put in by the staff.
"Things are now back to normal although we have still not been connected back up to the grid."
Business as usual at Clays despite major power cut
Book printer Clays has said well laid disaster recovery plans ensured that production continued over the weekend even though a fire at a Bungay sub-station on Friday morning resulted in complete power loss.