Symptom
Probable Cause
Action
Test page prints with
error messages
Internal errors
1.
NVRAM E1 or NVRAM E2:
a.
Disconnect the power cable at the unit.
b.
Wait 10 seconds and reconnect.
c.
If the problem continues, replace the NPS unit or LAN card.
2.
NVRAM E3:
a.
Replace the NPS unit or LAN card.
3.
NVRAM E4:
a.
Disconnect the power cable at the unit.
b.
Wait 10 seconds and reconnect.
c.
If the problem continues, replace the NPS unit or LAN card.
4.
ETHER E6, ERROR E6, COMM E8:
a.
Replace the NPS unit or LAN card.
5.
COMM E9:
a.
Wrong token ring speed.
b.
Change the ring speed. Power off the NPS unit and try again.
Table 19. Reference Table; NPS 540+ with no external power supply
1. Remove NPS from printer’s parallel connector.
2. Check for +5 V dc on pin 18 of the printer’s parallel connector (pin numbers shown on connector).
3. If +5 V dc is not present, ensure the logic board jumper that enables pin 18 voltage is installed correctly. See Figure 118 on
page 377.
4. Go to Step 2 on page 61.
Chapter 1. Diagnosing Problems
154
Summary of Contents for 4247
Page 1: ...4247 Printers Maintenance Information Document Number SA24 4400 05 Part Number 27P8450 IBM ...
Page 241: ...e90apc15 Figure 24 Main Input Power Supply Ground Chapter 3 Circuit Diagrams 241 ...
Page 257: ...Figure 32 Stacker Motor Wiring Chapter 3 Circuit Diagrams 257 ...
Page 261: ...Stacker Cable Wiring Figure 36 Tractor Assembly Cable Wiring Chapter 3 Circuit Diagrams 261 ...