Reference Table 7, Network Server Problems – NPS and LAN Attachment
Card
Symptom Probable Cause Action
Network light flashes
rapidly after power on self
test on external Token
Ring NPS (all models)
Incorrect ring speed
selected
Select correct token ring speed. Power off the NPS unit and try again.
NPS Server or LAN card
will not communicate with
host
Network problem 1. Have the customer “ping” the printer to verify communications.
2. Have the customer verify host and print server configuration. Including IP
address, gateway address, and subnet mask.
3. Have the customer check physical network cabling.
NPS Server or LAN card
communicates with host
but printer does not print
Data stream problem 1. Have the customer check print job stream.
2. Take a data trace of the attachment and contact support.
Note: The term “ping” means to send a signal in anticipation of a return response. The return response indicates that the printer
and the host are communicating.
Reference Table 8, Power Supply Connector Pins and Voltages
Table 22. Voltages
Pin Voltage Range
Pin 1 N/A
Pin 2 −5 V dc −5.2 / −4.8 V dc
Pin 3 +5 V dc +4.8 / +5.2 V dc
Pin 4 +5 V dc +4.8 / +5.2 V dc
Pin 5 +5 V dc +4.8 / +5.2 V dc
Pin 6 Ground
Chapter 1. Diagnosing Problems
156
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