Lexmark X644E Service Manual - Page 59
been on for an extended, temperature after slope
UPC - 734646093156
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7002-xxx Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description Action 920 .91 920 .92 920 .93 920 .94 920 .96 920 .97 Hot roll took too long to heat up after transitioning to new enhanced mode. Fuser page count not available. Hot roll fell too far below desired temperature while printing. Fuser page count not available. Hot roll too cool while checking for slope change. Fuser page count not available. Hot roll too cool when heating to desired temperature after slope change. Fuser page count not available. Fuser is not increasing in temperature even though the lamp has been on for an extended time. Fuser page count not available. Fuser has been below the desired temperature for too long while media is in the nip. Fuser page count not available. • Bad thermistor, circuit, or cabling. • Fuser not receiving AC power. • Poor supply line voltage. • Low voltage or incorrect lamp. • Incorrect hot roll. Go to "920.xx-Cold fuser service check" on page 2-132. • Bad thermistor, circuit, or cabling. • 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. Go to "920.xx-Cold fuser service check" on page 2-132. • Bad thermistor, circuit, or cabling. • 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. Go to "920.xx-Cold fuser service check" on page 2-132. • Bad thermistor, circuit, or cabling. • 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. Go to "920.xx-Cold fuser service check" on page 2-132. • Fuser is not receiving AC power. Go to "920.xx-Cold fuser service • Poor supply line voltage. check" on page 2-132. • 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. • Abrupt change in temperatures that has disrupted control. Go to "920.xx-Cold fuser service check" on page 2-132. Diagnostic information 2-21