Lexmark T642 Service Manual - Page 64
Printhead lost HSYNC., Cartridge fan service, check on Main fan on, - 929 00 service toner sensor
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4061-xx0 Service error codes (9xx.xx) (continued) Error code Sub codes Display text Description 927 .02 927 .03 927 .04 927 .05 927 .06 927 .07 929 .00 929 .66 929 .67 930 .00 932 .00 933 .00 934 .00 Cartridge fan stalled. • Loose connector. • External blockage of the fan, preventing it from turning. • Bad fan. Main fan took too long to ramp up. • Loose connector. • External blockage of the fan, preventing it from turning. • Bad fan. Main fan underspeed or stalled during speed adjustment state. • Corrupted feedback signal. • Fan input voltage may be too low. Main fan overspeed during speed adjustment state. • Corrupted feedback signal. • Fan input voltage may be too low. Main fan capture data is invalid and speed control is at maximum in fan control idle state. Corrupted or non-existent feedback signal. Main fan capture data is invalid and speed control is at maximum in fan control adjustment state. Corrupted feedback signal. Toner sensor error-a problem has been detected with the toner sensor. • Check the toner sensor • Check cable • Check system board An error has been detected. No home windows has been detected. • Check toner cartridge. • Check toner sensor No toner sensor transition. • Check toner sensor • Check toner cartridge An incorrect printhead has been detected Check the printhead Printhead lost HSYNC. • Check printhead • Check cables and connections • Check system board Mirror motor locked, no first HSYNC received. • Check printhead • Check cables and connectors • Check system board. Mirror motor lost lock • Check printhead • Check cables and connections • Check system board Action Go to "Cartridge fan service check" on page 2-76. Go to "Main fan" on page 2-76. Go to "Main fan" on page 2-76. Go to "Main fan" on page 2-76. Go to "Main fan" on page 2-76. Go to "Main fan" on page 2-76. Go to "Toner sensor service check" on page 2-127. Go to "Toner sensor service check" on page 2-127. Go to "Toner sensor service check" on page 2-127. Go to "Printhead service check" on page 2-122. Go to "Printhead service check" on page 2-122. Go to "Printhead service check" on page 2-122. Go to "Printhead service check" on page 2-122. 2-24 Service Manual