diff --git a/README b/README
index dc84bf8..3782210 100644
--- a/README
+++ b/README
@@ -73,6 +73,8 @@
    Olmec OP900
    Shinko CHC-S6245 (aka Sinfonia CE1)
    Sony UP-D898
+   Sony UP-CR20L
+   Sony UP-DR80MD
    Shinko CHC-S6145-5A (aka Sinfonia CS2-c)
    Magicard Rio 2E (and other Magicard models)
 
@@ -689,7 +691,7 @@
 
    Additional model IDs recognized:
      sony-updr150 sony-updr200 sony-upcr10l
-     sony-upd895 sony-upd897
+     sony-upd895 sony-upd897 dnp-sl10
      sonyupdr150 sonyupdr200 sonyupcr10
 
    Verified supported printers:
@@ -704,16 +706,28 @@
 
     DNP DS-SL10
 
-  Work-in-progress printers:
-
-    Sony UP-D898
-
   Valid commands:
 
      -s                 Query printer status
 
   This backend does not support reporting marker levels.
 
+ ***************************************************************************
+  BACKEND=sonyupdneo
+
+   Additional model IDs recognized:
+     sony-upcr20l sony-upd898
+     sony-updr80md dnp-sl20
+
+  Work-in-progress printers (Lack USB PIDs)
+
+    Sony UP-D898 / UP-DX898
+    Sony UP-CR20L
+    Sony UP-DR80MD
+    DNP DS-SL20
+
+  This backend does not support reporting marker levels.
+
  ***************************************************************************
   BACKEND=mitsu70x
 
diff --git a/backend_sonyupd.c b/backend_sonyupd.c
index 0ed605c..96f0534 100644
--- a/backend_sonyupd.c
+++ b/backend_sonyupd.c
@@ -606,11 +606,10 @@ static int upd_query_markers(void *vctx, struct marker **markers, int *count)
 static const char *sonyupd_prefixes[] = {
 	"sonyupd",
 	"sony-updr150", "sony-updr200", "sony-upcr10l",
-	"sony-upd895", "sony-upd897",
+	"sony-upd895", "sony-upd897", "dnp-sl10",
 	// Backwards compatibility
 	"sonyupdr150",
 	"sonyupdr200", "sonyupcr10",
-//	"sony-upd898",
 	NULL
 };
 
diff --git a/backend_sonyupdneo.c b/backend_sonyupdneo.c
index 609a430..09b42f8 100644
--- a/backend_sonyupdneo.c
+++ b/backend_sonyupdneo.c
@@ -323,7 +323,7 @@ static int updneo_query_markers(void *vctx, struct marker **markers, int *count)
 
 static const char *sonyupdneo_prefixes[] = {
 	"sonyupdneo",
-	"sony-upd898", "sony-upcr20l", "sony-updr80",
+	"sony-upd898", "sony-upcr20l", "sony-updr80", "sony-updr80md",
 	"dnp-sl20",
 	NULL
 };
@@ -349,7 +349,7 @@ struct dyesub_backend sonyupdneo_backend = {
 	.devices = {
 		{ USB_VID_SONY, USB_PID_SONY_UPD898MD, P_SONY_UPD898, NULL, "sony-upd898"},
 		{ USB_VID_SONY, USB_PID_SONY_UPCR20L, P_SONY_UPCR20L, NULL, "sony-upcr20l"},
-		{ USB_VID_SONY, USB_PID_SONY_UPDR80MD, P_SONY_UPDR80, NULL, "sony-upd80"},
+		{ USB_VID_SONY, USB_PID_SONY_UPDR80MD, P_SONY_UPDR80, NULL, "sony-updr80md"},
 		{ 0, 0, 0, NULL, NULL}
 	}
 };
diff --git a/regression.csv b/regression.csv
index 9fa43c9..805afed 100644
--- a/regression.csv
+++ b/regression.csv
@@ -105,7 +105,7 @@ sony-upd897,0x054c,0x01e7,sony_upd897-1280x1280.raw,
 #
 # 'sonyupdneo'
 #
-sony-updr80,0x054c,0xcdef,sony_updr80md-a4.raw,
+sony-updr80md,0x054c,0xcdef,sony_updr80md-a4.raw,
 sony-upcr20l,0x054c,0xbcde,sony_upcr20l_4x6.raw,
 sony-upcr20l,0x054c,0xbcde,sony_upcr20l_8x6.raw,
 sony-upd898,0x054c,0xabcd,sony_upd898-1280x960.raw