Lexmark T644 Service Manual - Page 51
xx-Cold fuser, service check on been on for an extended
UPC - 845307525920
View all Lexmark T644 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 51 highlights
4061-xx0 Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description 920 .22 920 .23 920 .24 920 .26 920 .27 920 .31 Hot roll fell too far below the desired temperature while printing. Fuser page count between 200,000 and 299,999. Hot roll too cool while checking for slope change. Fuser page count between 200,000 and 299,999. Hot roll too cool when heating to desired temperature after slope change. Fuser page count between 200,000 and 299,999. Fuser is not increasing in temperature even though the lamp has been on for an extended tim. Fuser page count between 200,000 and 299,999. Fuser has been below the desired temperature for too long while media is in the nip. Fuser page count between 200,000 and 299,999. Under temperature during steady state control. Fuser page count between 300,000 and 399,999. • Bad thermistor, circuit, or cabling. • Noisy thermistor signal. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. • Bad thermistor, circuit, or cabling. • Noisy thermistor signal. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. • Bad thermistor, circuit, or cabling. • Noisy thermistor signal. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. • Fuser is not receiving AC power. • Poor supply line voltage. • Bad thermistor, circuit, or cabling. • Very noisy thermistor signal. • Fuser not receiving AC power. • Poor supply line voltage. • Excessive load on the fuser. • Low voltage or incorrect lamp. • Incorrect hot roll. • Abrupt change in temperature that has disrupted control. • Bad thermistor, circuit, or cabling. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. Action Go to "920.xx-Cold fuser service check" on page 2-87. Go to "920.xx-Cold fuser service check" on page 2-87. Go to "920.xx-Cold fuser service check" on page 2-87. Go to "920.xx-Cold fuser service check" on page 2-87. Go to "920.xx-Cold fuser service check" on page 2-87. Go to "920.xx-Cold fuser service check" on page 2-87. Diagnostic information 2-11