Lexmark C734 series, Service Manual

Page: 66 / 436

2-32
Service Manual
5026
920.16
POST Error Bad printhead NVRAM data. • POR the printer.
• If the error message persists, go to
“920.16—
POST (power-on self test)—Bad printhead
NVRAM data error service check” on
page 2-105
.
920.17
POST Error Output bin cable not connected. • POR the printer.
• If the error message persists, go to
“920.17—
POST (power-on self test)—Output bin cable
not connected error service check” on
page 2-106
.
920.18
POST Error Cartridge motor 3 (bottom) is not
connected. • POR the printer.
• If the error message persists, go to
“920.18—
POST (power-on self test)—Cartridge motor
3 not connected error service check” on
page 2-107
.
920.19
POST Error Stepper motor not connected. • POR the printer.
• If the error message persists, go to
“920.19—
POST (power-on self test)—Transfer module
stepper motor not connected error service
check” on page 2-108
.
920.20
POST Error Incompatible transfer module. • POR the printer.
• If the error message persists, go to
“920.15,
920.20—POST (power-on self test)—Bad
transfer module NVRAM data error service
check” on page 2-104
.
920.21
POST Error +24 V power supply failure. • POR the printer.
• If the error message persists, replace the low-
voltage power supply. See “Low-voltage
power supply (LVPS) removal” on page 4-98 .
920.22
POST Error Fuser bubble sensor is not connected. If the error message persists, go to “Bubble
sensor service check” on page 2-120 .
920.23
POST Error Duplex motor is not connected. • POR the printer.
• If the error message persists, go to
“920.23—
POST (power-on self test)—Duplex motor
not connected error service check” on
page 2-111
.
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 2-92
.
920.27
POST Error Option board ID unknown. If the error message persists, go to “920.27,
920.28, 920.29—POST (power on self test)
service check” on page 2-112
.
920.28
POST Error Option type unknown. If the error message persists, go to “920.27,
920.28, 920.29—POST (power on self test)
service check” on page 2-112
.
920.29
POST Error Option product ID unknown. If the error message persists, go to “920.27,
920.28, 920.29—POST (power on self test)
service check” on page 2-112
.
Error code Description Action