fix: PPD backslash typo, >8-digit code guard, NickName, build validation

ppd/TA3505ci_AS.ppd

@@ -24,8 +24,8 @@
 *PSVersion: "(3011.103) 1"
 *Manufacturer: "UTAX/TA"
 *ModelName: "3505ci KPDL"
-*ShortNickName: "3505ci (KPDL)"
-*NickName: "3505ci (KPDL)"
+*ShortNickName: "3505ci (kydriv)"
+*NickName: "3505ci (kydriv)"
 *PCFileName: "TA3505ci.PPD"
 
 *1284DeviceID: "MDL:3505ci;MFG:UTAX"
@@ -3424,7 +3424,7 @@ userdict /180rotdetail true put
 *OpenUI *KmManagment/Job Accounting: PickOne
 *OrderDependency: 60 AnySetup *KmManagment
 *DefaultKmManagment: Default
-\*KmManagment Default/Off: ""
+*KmManagment Default/Off: ""
 *KmManagment MG12345/Code 12345: ""
 *?KmManagment: ""
 *End