diff --git a/backend/snmp.c b/backend/snmp.c
index 66ac884..9572822 100644
--- a/backend/snmp.c
+++ b/backend/snmp.c
@@ -154,6 +154,8 @@ static const int	UriOID[] = { CUPS_OID_ppmPortServiceNameOrURI, 1, 1, -1 };
 static const int	LexmarkProductOID[] = { 1,3,6,1,4,1,641,2,1,2,1,2,1,-1 };
 static const int	LexmarkProductOID2[] = { 1,3,6,1,4,1,674,10898,100,2,1,2,1,2,1,-1 };
 static const int	LexmarkDeviceIdOID[] = { 1,3,6,1,4,1,641,2,1,2,1,3,1,-1 };
+static const int	HPDeviceIdOID[] = { 1,3,6,1,4,1,11,2,3,9,1,1,7,0,-1 };
+static const int	RicohDeviceIdOID[] = { 1,3,6,1,4,1,367,3,2,1,1,1,11,0,-1 };
 static const int	XeroxProductOID[] = { 1,3,6,1,4,1,128,2,1,3,1,2,0,-1 };
 static cups_array_t	*DeviceURIs = NULL;
 static int		HostNameLookups = 0;
@@ -969,9 +971,15 @@ read_snmp_response(int fd)		/* I - SNMP socket file descriptor */
 	_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
 	               packet.community, CUPS_ASN1_GET_REQUEST,
 		       DEVICE_ID, LexmarkDeviceIdOID);
+	_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
+		       packet.community, CUPS_ASN1_GET_REQUEST,
+		       DEVICE_ID, RicohDeviceIdOID);
 	_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
 	               packet.community, CUPS_ASN1_GET_REQUEST,
 		       DEVICE_PRODUCT, XeroxProductOID);
+	_cupsSNMPWrite(fd, &(packet.address), CUPS_SNMP_VERSION_1,
+		       packet.community, CUPS_ASN1_GET_REQUEST,
+		       DEVICE_ID, HPDeviceIdOID);
         break;
 
     case DEVICE_DESCRIPTION :