Printer Diagnostic Test Descriptions - Xerox Phaser 6500 Service Manual

General Troubleshooting

Printer Diagnostic Test Descriptions

4-12
The table below lists the Printer Diagnostic tests available in Service Mode, the
expected results, and a brief description of each test. If a test fails and displays an
error code, use the troubleshooting procedure in Chapter 3 specific to the error. If
the test indicates component failure, replace the failed component using the
procedures in Chapter 8. If test results are inconclusive, isolate the problem using
the general procedures in this chapter.
Caution
Do not turn the printer Off during ESS (IP Board) Diag testing.
Test Control Panel Display
ESS Diag Tests core print engine components.
All Test Start
■
Processing
■
Check OK or
■
<Failed Test> Error
FlashROM Test
Start
■
Processing
■
Check OK (cycle
■
power) or NG
EEPROM Test Start
■
Processing
■
Check OK or NG
■
DRAM Test
Start
■
Processing
■
Check OK or NG
■
MAC+PHY Test Start
■
Processing
■
Check OK or NG
■
ASIC Test Start
■
Check OK or ASIC Error
■
PANEL Test Start
■
Button
Up
Down
Left
Right
OK
Menu
Cancel
Power Save
Engine Test
Start
■
Check OK or Engine
■
Error
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Test Description
This test runs all ESS Diag tests except
Panel tests. Test returns Check OK or
failed test name.
Calculates the ROM checksum and
compares it with the stored value. Run
this test when a 016-317 SFP error
occurs, or when 016-500, 016-501, or
016-502 MFP errors occur.
This test checks the diag. area of the
EEPROM. Run this test when 116-323,
116-324 and 116-390 errors occur.
This test checks the DRAM address
lines. Optional memory is checked if
found. Run this test when 116-315,
116-316 and 116-320 errors occur.
Run this test when 116-314, 116-350,
116-351, 116-352 and 116-355 errors
occur.
ASIC Register check. Run this test
when 116-343 errors occur.
This test checks the Control Panel
buttons. Button function is indicated
on the display and LEDs.
LED
Power
Ready Error Save
On On Off
On On Off
On Off Off
On Off Off
Off On Off
Off On Off
Off Off Off
Off Off On
Print engine communication test. Run
this test when 024-371 errors occur.
Phaser 6500/WorkCentre 6505 Service Manual
Display
UP
DOWN.
LEFT
RIGHT
SET
MENU.
CANCEL JOB
POWER SAVE