Lexmark X746de - Page 81

Diagnostic information 2-41
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920.15
POST Error
Bad transfer module NVRAM data. • POR the printer.
• If the error message persists, go to “920.15,
920.20—POST—Bad transfer module
NVRAM data error service check” on
page 2-124.
920.16
POST Error
Bad printhead NVRAM data. • POR the printer.
• If the error message persists, go to “920.16—
POST—Bad printhead NVRAM data error
service check” on page 2-124.
920.17
POST Error
Output bin cable not connected. • POR the printer.
• If the error message persists, go to “920.17—
POST error service check” on page 2-125.
920.18
POST Error
Cartridge motor 3 (bottom) is not
connected.
• POR the printer.
• If the error message persists, go to “920.18—
POST—Cartridge motor 3 not connected
error service check” on page 2-126.
920.19
POST Error
Stepper motor not connected. • POR the printer.
• If the error message persists, go to “920.19—
POST—Transfer module stepper motor not
connected error service check” on
page 2-126.
920.20
POST Error
Incompatible transfer module. • POR the printer.
• If the error message persists, go to “920.15,
920.20—POST—Bad transfer module
NVRAM data error service check” on
page 2-124.
920.21
POST Error
+24 V power supply failure. • POR the printer.
• If the error message persists, go to “920.21—
POST—24 V power supply failure error
service check” on page 4-128.
920.22
POST Error
Fuser bubble sensor is not connected. If the error message persists, go to “Bubble
sensor service check” on page 2-143.
920.23
POST Error
Duplex motor is not connected. • POR the printer.
• If the error message persists, go to “920.23—
POST error service check” on page 2-129.
920.25
POST Error
Bad temperature and humidity sensor. • POR the printer.
• If the problem persists, go to “920.03, 920.25—
Transfer Module Missing error service
check” on page 2-112.
920.26
POST Error
Top access cover sensor not
connected.
Go to “920.26—POST service check” on
page 2-130.
920.27
POST Error
Option board ID unknown. Go to “920.27, 920.28, 920.29—POST (power on
self test) option tray error service check” on
page 2-131.
920.28
POST Error
Option type unknown. Go to “920.27, 920.28, 920.29—POST (power on
self test) option tray error service check” on
page 2-131.
920.29
POST Error
Option product ID unknown. Go to “920.27, 920.28, 920.29—POST (power on
self test) option tray error service check” on
page 2-131.
Error code Description Action