Lexmark X746de Service Manual page 81

Error code Description
920.16 Bad printhead NVRAM data.
POST Error
920.17 Output bin cable not connected.
POST Error
920.18 Cartridge motor 3 (bottom) is not
POST Error connected.
920.19 Stepper motor not connected.
POST Error
920.20 Incompatible transfer module.
POST Error
920.21 +24 V power supply failure.
POST Error
920.22 Fuser bubble sensor is not connected.
POST Error
920.23 Duplex motor is not connected.
POST Error
920.25 Bad temperature and humidity sensor.
POST Error
920.26 Top access cover sensor not
POST Error connected.
920.27 Option board ID unknown.
POST Error
920.28 Option type unknown.
POST Error
920.29 Option product ID unknown.
POST Error
Action
• POR the printer.
• If the error message persists, go to
POST—Bad printhead NVRAM data error
service check" on page
• POR the printer.
• If the error message persists, go to
POST error service check" on page
• POR the printer.
• If the error message persists, go to
POST—Cartridge motor 3 not connected
error service check" on page
• POR the printer.
• If the error message persists, go to
POST—Transfer module stepper motor not
connected error service check" on
page 2-128.
• POR the printer.
• If the error message persists, go to
920.20—POST—Bad transfer module
NVRAM data error service check" on
page 2-126.
• POR the printer.
• If the error message persists, go to
POST—24 V power supply failure error
service check" on page
If the error message persists, go to
sensor service check" on page
• POR the printer.
• If the error message persists, go to
POST error service check" on page
• POR the printer.
• If the problem persists, go to
Transfer Module Missing error service
check" on page 2-113.
Go to
"920.26—POST service check" on
page 2-132.
Go to
"920.27, 920.28, 920.29—POST (power on
self test) option tray error service check" on
page 2-133.
Go to
"920.27, 920.28, 920.29—POST (power on
self test) option tray error service check" on
page 2-133.
Go to
"920.27, 920.28, 920.29—POST (power on
self test) option tray error service check" on
page 2-133.
Diagnostic information
7526
Previous
"920.16—
2-126.
"920.17—
2-127.
Go Back
"920.18—
2-128.
"920.19—
"920.15,
"920.21—
4-130.
"Bubble
2-146.
"920.23—
2-131.
"920.03, 920.25—
2-41
Next