Lexmark C 540n, Service Manual

Page: 52 / 262

2-18
Service Manual
5025-2xx, 4xx
930.xx Service
LVPS Low voltage power supply did not
detect zero crossing. Replace the LVPS. See “Low-voltage
power supply (LVPS) assembly
removal” on page 4-47
.
930.09 Service
LVPS Fuser zero crossings out of range.
Zero crossing detected. Go to “Fuser service check” on
page 2-28 .
940.0 x Service
Cyan TMC Sensor
The cyan cartridge toner meter cycle
(TMC) switch error.
.01—Recoverable
.02—Nonrecoverable
Go to “Toner meter sensors (Y, C, M, K)
on TMC card” on page 2-50 .
941.0 x Service
Magenta TMC
Sensor
The magenta cartridge toner meter
cycle (TMC) switch error.
.01—Recoverable
.02—Nonrecoverable
Go to “Toner meter sensors (Y, C, M, K)
on TMC card” on page 2-50 .
942.0 x Service
Yellow TMC Sensor
The yellow cartridge toner meter cycle
(TMC) switch error.
.01—Recoverable
.02—Nonrecoverable
Go to “Toner meter sensors (Y, C, M, K)
on TMC card” on page 2-50 .
943.0 x Service
Black TMC Sensor
The black cartridge toner meter cycle
(TMC) switch error.
.01—Recoverable
.02—Nonrecoverable
Go “Toner meter sensors (Y, C, M, K) on
TMC card” on page 2-50 .
950. xx Service
NVRAM Failure
There is a mismatch between controller
EEPROM and mirror.
• 950.00 through 950.29 codes:
mismatch between controller and
mirror
• 950.30 through 950.60 codes:
mismatch between secure and
controller
Go to “950.xx NVRAM Failure service
check” on page 2-23 .
951. xx Service
NVRAM Failure
Mismatch between controller EEPROM
and mirror.
• 951.00 through 951.29 codes:
mismatch between controller and
mirror
• 951.30 through 951.60: mismatch
between secure and controller
952. xx Service
NVRAM Failure: n
A recoverable MVRAM Cyclic
Redundancy Check (CRC) error
occurred.
n is the offset at which the
error occurred.
Performing a POR will clear this error.
953. xx Service
NVRAM Failure
NVRAM chip failure with mirror.
954. xx Service
NVRAM Failure
The NVRAM chip failure with controller
part.
Service error messages (1xx, 9xx) (continued)
Error code Description Action