--- printer.c.old       2007-11-28 19:14:11.000000000 -0600
+++ printer.c   2007-11-28 16:17:44.000000000 -0600
@@ -738,7 +738,10 @@
     /* LOAD UCS BUFFER AND FOLD                                      */
     /*---------------------------------------------------------------*/
         /* For 1403, command reject if not chained to UCS GATE */
-        if (dev->devtype == 0x1403 && prevcode != 0xEB)
+        /* Also allow ALLOW DATA CHECK to get TSS/370 working  */
+        /* -- JRM 11/28/2007 */
+        if (dev->devtype == 0x1403 &&
+            ((prevcode != 0xEB) && (prevcode != 0x7B)))
         {
             dev->sense[0] = SENSE_CR;
             *unitstat = CSW_CE | CSW_DE | CSW_UC;