Repair Advice for the Lexmark T644, T642, T640 Error Code 932.00 Lost HSYNC
I don’t really have a lot to say about the  Lexmark T644, T642, T640 Error Code 932.00. Another one of those printhead / laser scanner assembly errors. Below find some repair advice for the error along with links to purchase a replacement printhead if needed. Also, at the bottom of the article find a link to the printhead replacement instructions.
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Lexmark T644, T642, T640 932 .00
Printhead lost HSYNC.
Service Manual Repair Advice for the Lexmark T644, T642, T640 Error Code 932.00
• Check printhead
• Check cables and connections
• Check system board
Additional Repair Advice
1. Turn the machine off then back on. This error can be related to sudden movement while the machine is printing. Maybe someone was adding paper and shut the cassette tray to hard. Maybe someone had a drink spill and quickly moved the machine. Whatever, the cause, sudden movement of the machine will printing can cause this. Heck even a lightening strike near by or other sudden interruptions of power can cause this error.
2. Did you leave your machine sit out in the cold overnight or in a storage area. You might see this error on a machine that is not up to room temperature. Let the machine sit 2 to 3 hours before use if it has been in extreme cold conditions.
3. Check your cables like mentioned above. Listen for odd noises. If you have a printhead going out they can become extremely noisy has they get up to speed before printing.
4. Replace the Printhead.
Replacement Instructions for the Printhead Assembly
Lexmark T644, T642, T640 Printhead Replacement – 40X0062
