Xerox Phaser 8400 Service Manual page 212

Printer Optional Features Not Available
1. Printer configuration incorrect.
a. Verify proper configuration of printer using Control Panel.
2.
Computer print driver configured incorrectly.
a.
Examine print driver setup to ensure printer driver setup doesn't override
desired features set via Control Panel.
3. Configuration card failure.
a.
Verify configuration card is properly oriented and fully inserted.
b.
Verify printer model purchased corresponds to features expected.
c. Clean configuration card contacts with isopropyl alcohol, reinstall, and
retest.
d.
Swap configuration card with a known working card. If printer works,
replace card with one containing identical features as originally purchase.
e.
The configuration card enables certain optional features in the printer. Care
must be taken to duplicate the features of the original printer when replacing
the card.
525-Sheet Feeder Does Not Function
1.
Thermal safety fuse blown.
a.
Power cycle printer.
b. The safety fuse is a self resetting device. Power cycling ensures the fuse
cools enough to reset itself.
2.
525-Sheet Feeder faulty.
a.
Turn off printer and wait 30 seconds for power supply capacitors to
discharge.
b.
Replace 525-Sheet Feeder.
c. Perform full test of printer.
Printer Is On (Electronics Module LEDs are Illuminated) but the Printer
Cannot Print Pages and the Control Panel Appears Frozen and No Error
Messages Are Displayed
1.
Nonspecific electronics failure.
a.
Double check PS and PE indicators for any error code information. The
printer self test is usually able to detect a failure that would cause this
symptom. Looking up the error code may save debugging time.
b.
If the PS and PE indicators are steady and dimly-on, replace the electronics
module, reassembly and retest printer.
c.
If the PS and PE indicators are blinking, brightly-on, or totally off, continue
debugging. A dim but steady on condition indicates some firmware was not
properly loaded into a logic circuit.
4-72 Phaser 8400/8500/8550 Color Printer