Lexmark T642 Service Manual - Page 62
xx-Hot fuser, service check on Too hot to do lamp - error no nvram found
UPC - 734646722001
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4061-xx0 Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description 924 .41 924 .51 924 .91 925 .01 925 .02 925 .11 925 .12 925 .21 925 .22 925 .31 Open thermistor check failure. Fuser page count between 400,000 and 499,999. Open thermistor check failure. Fuser page count over 500,000. Open thermistor check failure. Fuser page count not available. Lamp detection performed and found error. Fuser page count between 0 and 99,999. Too hot to do lamp detection and NVRAM bit indicates previous wrong lamp detected. Fuser page count between 0 and 99,999. Lamp detection performed and found error. Fuser page count between 100,000 and 199,999. Too hot to do lamp detection and NVRAM bit indicates previous wrong lamp detected. Fuser page count between 100,000 and 199,999. Lamp detection performed and found error. Fuser page count between 200,000 and 299,999. Too hot to do lamp detection and NVRAM bit indicates previous wrong lamp detected. Fuser page count between 200,000 and 299,999. Lamp detection performed and found error. Fuser page count between 300,000 and 399,999. • Noisy thermistor signal. • Intermittent connection. • Thermistor cable not connected or thermistor actually open. • Noisy thermistor signal. • Intermittent connection. • Thermistor cable not connected or thermistor actually open. • Noisy thermistor signal. • Intermittent connection. • Thermistor cable not connected or thermistor actually open. • 115 V lamp in 220 V printer. • Lamp has excessive wattage. Attempting to POR machine after receiving a 925.01. • 115 V lamp in 220 V printer. • Lamp has excessive wattage. Attempting to POR machine after receiving a 925.01. • 115 V lamp in 220 V printer. • Lamp has excessive wattage. Attempting to POR machine after receiving a 925.01. • 115 V lamp in 220 V printer. • Lamp has excessive wattage. Action Go to "924.xx-Hot fuser service check" on page 2-91. Go to "924.xx-Hot fuser service check" on page 2-91. Go to "924.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. Go to "925.xx-Hot fuser service check" on page 2-91. 2-22 Service Manual