These printers use the WT525 cartridge:

Omnifax L 525

Omnifax L 535

Omnifax L 545

Infotec 3673

Infotec 3674

Infotec 3675

Infotec 3685

Infotec Fax 3673

Infotec Fax 3674

Infotec Fax 3675

Infotec Fax 4010

Murata-Muratec 354

Nashuatec D 510

Nashuatec P 394

Nashuatec P 394 MFP

Nashuatec P 397

Nashuatec P 398

Nashuatec P 497

Nashuatec P 598

Rex 2110

Rex 6460

Rex 6490

Rex 6500

Rex 6860 Fax

Rex Fax 2110

Rex Fax 6460

Rex Fax 6490

Rex Fax 6500

Ricoh 2400 L

Ricoh 2700 L

Ricoh 3700 L

Ricoh 3800 L

Ricoh 4700 L

Ricoh 4800 L

Ricoh Fax 2400 L

Ricoh Fax 2700 L

Ricoh Fax 3700 L

Ricoh Fax 3800 L

Ricoh Fax 4700 L

Ricoh Fax 4800 L

Siemens Fax 770

Siemens Fax 790

Teleautograph OmniFax L-525

Teleautograph OmniFax L-535

Teleautograph OmniFax L-545