Of6Aess Rap (C55/C55Mp) - Xerox DocuPrint C55 Service Manual

OF6A ESS RAP (C55/C55mp)
This RAP is used when you suspect a problem
with the (C55/C55mp) ESS.
PROCEDURE
Switch the Printer off. Enter IOT normal
diagnostics (Menu + Enter, then Power On).
Scroll to TEST PRINT and press Form Feed
to run an IOT test print.
The Test Print is produced.
Y N
Refer to Section 2 Table of contents and
fix the IOT Problem.
Switch the printer off.
WARNING
Have the customer disconnect all network
and workstation inputs to the printer.
Remove the Left Cover. If the Printer has a
NIC card, remove it.
Locate the five LEDs (CR1~CR5) on the rear
of the ESS PWB. They are just below the
parallel port.
When the printer is switched on, you should
see the LEDs light in the following sequence.
CR5 on,
All LEDs on.
CR5 and CR3 on.
Switch the Printer on while observing the
LEDs. If you need to do it several times, be
sure to wait 10 seconds after power off before
switching the Printer back on.
The LEDs operated normally.
Y N
A B
OTHER FAULTS RAPs
OF6A
A B
CR5 came on.
Y N
Refer to BSD 1.2 and check the +5
VDC to the ESS PWB (CN104-
16~20). If OK, replace the ESS PWB.
Replace the ESS PWB
Enter the Off Line mode and make a test print.
A Test Print was produced.
Y N
Replace the ESS PWB.
Determine the Port being used then select
from one of the following:
• Customer is using SLIC
- Check the connector from the PC to
ensure it is seated properly.
- Check for any bent or deformed pins.
- Replace the SLIC PWB. If the problem
still exists replace the ESS PWB.
• Customer is using Parallel
- Check the connector from the PC to
ensure it is seated properly.
- Check for any bent or deformed pins.
- If the problem still exists replace the
ESS PWB.
2/99
2-38
• Customer is using NIC
Examine the NIC card for any obvious
problems. Look for bent or deformed pins.
Set up the meter to measure +5 VDC and
check for +5 VDC between pins 1 and 2 (top 2
pins) of the NIC connector.
+5 Volts is available.
Y N
Replace the ESS PWB.
Replace the NIC PWB.
SLIC
Figure 1. ESS PWB
DocuPrint C55/C55mp