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Chapter 5. Printer Interfaces
Terminating Resistor Configurations
The factory equips the printer with several resistors that are used for parallel
interface configurations and are suitable for most applications. These
470 ohm pull-up and 1K ohm pull-down terminating resistors are located
within the electronics of the machine and should be accessed only by a
trained service representative.
If the values of these terminating resistors are not compatible with the
particular interface driver requirements of your host computer, you may need
to have a different resistor combination installed on your printer. You must
call your printer service representative to have this situation addressed.