It had been expected that administrators would be appointed at the business yesterday (28 May), but no-one had been appointed at the time of writing on Wednesday.
Suppliers, employees and customers remain in the dark about what will happen next at the £19.4m turnover business, which employs more than 200 staff.
One employee told PrintWeek: "No-one knows what’s going on. Unite the union have been in today, but they can’t do anything for us until an administrator is appointed."
A supplier to the group, who wished to remain anonymous, described the situation as "a great worry".
"We are trying to find out what’s happening. We’re owed a reasonable sum of money as are many people in the industry."
There is understood to be interest in the company’s well-invested King’s Lynn digital printing facility from possible third-party purchasers.
Things came to a head at the company last week, apparently because of a cashflow crisis caused by overrunning costs at its new Cambridge facility, set up after MPG took over the former Cambridge University Press in-house print operation.
The resulting hiatus has resulted in a huge outpouring of comments on the printweek.com forum, but no statement from the company itself.
