The company managed to recover £1.4m last month, but the debt written off increased by £60,000 after June – from £350,000 to £410,000.
According to Ian Carrotte, managing director at ICSM, printers are adopting the "ostrich position" by giving credit despite the risks involved.
He said: "Debts are still coming to us far too late and unchecked, that is why the write-off figures – debts that are totally unrecoverable - are so high.
"Nearly all of these write-offs would have been recoverable had they come to us in time. In almost every case the printer had put off taking decisive action until it was too late."
ICSM warns printers to raise awareness of bad debts
Bad debts cost UK printers more than 400,000 in July despite a range of recovery services being available, according to credit-checking agency ICSM.
