The company entered administration with PricewaterhouseCoopers on Monday afternoon (5 December) following its parent company Manroland AG, which filed for insolvency on 25 November.
PwC said that there could be issues getting spare parts from Germany.
And Surrey Asset Finance director Jon Bennett told PrintWeek that Manroland users were in "uncertain territory" regarding spare parts.
He said: "There will be issues to consider for customers where orders for machines have yet to be fulfilled and I am sure clarity regarding warranties and service contracts with Manroland GB would be welcome."
Bennett's fears were echoed by Manroland owners, including Wyndeham Group chief executive Paul Utting.
He said: "From a service and spares point-of-view it's a concern for us. We need continuity so it's a concern until it's properly resolved. The same applies for thousands of printers worldwide. No printer can hold every type of spare, but at least we hold a larger range of spares than someone running just one press would."
Precision Colour Printing managing director Alex Evans added: "It is obviously a concern for all of us who are customers in terms of the direction of the company in both the short- and long-term. Long-term I think there will be a lot of restructuring and centralisation across-the-board."