Preventive Maintenance............................................................

51

Extending Battery Life....................................................................

51

General Cleaning Instructions........................................................

52

QL 220 Plus Cleaning................................................................................

52

QL 320 Plus Cleaning................................................................................

54

QL 420 Plus Cleaning................................................................................

56

Troubleshooting.........................................................................

58

Keypad Control Panel.....................................................................

58

LCD Control Panel Indicators.........................................................

59

Troubleshooting Topics..................................................................

60

Troubleshooting Tests....................................................................

62

Printing a Configuration Label.....................................................................

62

Communications Diagnostics......................................................................

62

Contacting Technical Support.....................................................................

63

Specifications.............................................................................

67

Printing Specifications ................................................................................

67

Memory and Communications Specifications...........................................

67

Label Specifications.....................................................................................

68

Font and Bar Code Specifications...............................................................

69

Communications Ports................................................................................

70

Physical, Environmental and Electrical Specifications...............................

71

QL Plus Series Accessories ........................................................................

75

Appendix A Interface Cables..........................................................

76

RS232 Cables...............................................................................................

76

USB Cable....................................................................................................

76

More Interface Cables..................................................................................

77

Appendix B Media Supplies...........................................................

78

Appendix C Maintenance Supplies..................................................

78

Appendix D Product Support.........................................................

79

Appendix E..................................................................................

81

Battery Disposal...........................................................................................

81

Product Disposal..........................................................................................

81

Appendix F Using zebra.com..........................................................

82

Index............................................................................................

84

Patent Numbers..........................................................................

86

3

QL Plus Series User Guide