Intermec EasyCoder 501 - Page 4

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 Confi guration...................................................................... 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 Confi guration...................................................................... 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 Confi guration...................................................................... 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 Mechanical Adjustments...................................................................... 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