Intermec EasyCoder 501 –Service Manual Ed.7 3
Chapter 0 Introduction
0.1 Contents, cont.
21. RS-422/485 Interface Board
21.1 Description............................................................................................ 164
21.2 Straps..................................................................................................... 166
21.3 Connector Configuration...................................................................... 168
21.4 Components Diagram ..........................................................................169
21.5 Circuit Diagram....................................................................................170
22. Parallel Interface Board
22.1 Description............................................................................................ 171
22.2 Straps..................................................................................................... 172
22.3 Connector Configuration...................................................................... 173
22.4 Components Diagram ..........................................................................174
22.5 Circuit Diagram.................................................................................... 175
23. Industrial Interface Board
23.1 Description............................................................................................ 176
23.2 Straps..................................................................................................... 177
23.3 Connector Configuration...................................................................... 178
23.4 Components Diagram ..........................................................................180
23.5 Circuit Diagrams...................................................................................181
24. Print Quality Adjustment
24.1 Test Labels ............................................................................................ 183
24.2 Possible Printout Troubles ...................................................................186
24.3 MechanicalAdjustments...................................................................... 187
25.Test Mode
25.1 Description............................................................................................ 192
25.2 EasyCoder 501 S.................................................................................. 192
25.3 EasyCoder 501 S, Test Mode Diagram............................................... 193
25.4 EasyCoder 501 E, SA, & LL............................................................... 194
25.5 EasyCoder 501 E/501 LL, Test Mode Diagram.................................196
25.6 EasyCoder 501 SA, Test Mode Diagram............................................ 197
26.Trouble Shooting
26.1 Printer “Dead”....................................................................................... 198
-AC power failure ................................................................................ 198
- Power supply failure .......................................................................... 198
- Transformer and cabling failure........................................................ 199
- CPU board failure ..............................................................................200
- Printhead/CPU Board mismatch.......................................................201
26.2 Single Function Failure........................................................................202
- No display function............................................................................202
- No keyboard reaction......................................................................... 202
- Error messages transmitted or displayed..........................................203
- No memory backup storage............................................................... 204
- No communication (general).............................................................204
- No communication (standard serial interface)................................. 205
- Label (ticket) gap or black mark not detected.................................. 206
- Printhead lift sensor out of order....................................................... 206
- Ribbon-end sensor out of order.........................................................207
26.3 Printing Troubles ..................................................................................208
- No printout at all.................................................................................208
- Overall weak printout.........................................................................209
- Overall too strong printout (bleeding)...............................................209
- Weak or missing printout of some dots............................................. 209
-All or most dots printed...................................................................... 210
- Printed line along dot row at startup.................................................210
- Media feed does not work ................................................................. 210
26.4 Transfer Ribbon Troubles ....................................................................211
- Transfer ribbon gets wrinkled............................................................211
- Transfer ribbon breaks ....................................................................... 211
26.5 Liner/Batch Takeup Troubles...............................................................212