Lexmark T642 Service Manual - Page 52

4061-xx0 Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description 920 .32 920 .33 920 .34 920 .36 920 .37 920 .41 Hot roll fell too far below desired temperature while printing. Fuser page count between 300,000 and 399,999. Hot roll too cool while checking for slope change. Fuser page count between 300,000 and 399,999. Hot roll too cool when heating to desired temperature after slope change. Fuser page count between 300,000 and 399,999. Fuser is not increasing in temperature even though the lamp has been on for an extended time. Fuser page count between 300,000 and 399,999. Fuser has been below the desired temperature for too long while media is in the nip. Fuser page count between 300,000 and 399,999. Hot roll took too long to heat up after transitioning to new enhanced mode. Fuser page count between 400,000 and 499,999. • 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 temperatures 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. 2-12 Service Manual