These printers use the P0030 cartridge:
Click On a Printer to View it's Cartridges
          Dataproducts M 100 L
          AM-International Multigraph Whiz
          Braegen N 3288
          Continental-Peripherals Resources M-200
          Data-General 340 CAS
          Data-General 340 MPT
          Data-General 340 SU
          Data-General 4353
          Data-General 4353 P
          Data-General 4356
          Data-General 6075
          Data-General 6076
          Data-General 6077
          Data-General 6078
          Data-General 9198
          Data-General 9199
          Data-General 9293
          DEC M 140
          Decision-Data 4822
          Diacon MD-Printer
          Display-Data Insight M-200
          IBM 3268-1
          IBM 3268-2
          IBM 3268-3
          IBM 3268 S 02
          Intertel 90 /10
          Intertel 90 /15
          Intertel Emsi
          Lee-Data 1360
          Paradyne 8319
          Point-Four-Data-Corp 4 SITE
          Printer-Systems PSC 100
          Printer-Systems PSC 120
          Printer-Systems PSC 200
          Printer-Systems PSC 6334
          Quotron 881
          Quotron 881 F
          Quotron 8801
          Raytheon M 120
          RCA CDP 185050
          RCA CDS 184050
          RCA CDS 185050
          RCA DCS 185050
          Ruben-Corp Assistant
          Sagem A 101
          Sagem A 102
          Sagem B 201
          Sagem C 301
          Sfena DSI 1090
          Southern-Systems M 100
          Tandem 5520
          Tandem 6520
          Tandem 6530
          Tandem T 5520
          Tandem T 6520
          Tandem T 6530
          Teletype AP 200
          Teletype AP 260
          Telex 268 SP
          Telex 387
          Telex 387 M
          Telex 387 TABLETOP
          Telex 3268
          Telex TC 387
          Vector-Graphics M 200
          Wang 725
          Xerox-Tektronix 4643