IBM 6400 Series - Page 134

134 Troubleshooting
Table 4. Common Communications Problems
Problem
Interface Common Causes
Fails to print from host
–OR–
Prints incorrect characters
–OR–
Prints extra characters
–OR–
Drops characters
parallel – Interface cable defective
– Host/Network configuration
– Printer logic
– Terminating Resistors
serial – Host/Printer interface cable
pinouts incompatible
– Host/Printer/Network
configuration
– Set DTR and RTS both True
– Interface cable defective
– Printer logic
twinax – Interface cable defective
– Host–Printer definition
– Controller/Network configuration
– Printer logic
coax – Interface cable defective
– Controller/Network configuration
– Printer logic