The formatter board on the LJ-1100/1102 series printer is becoming notorious for repeated failures. Signs that the formatter board needs to be replaced include: random '49' errors, intermittent loss of the network connection or USB connection, and "freezing" in the middle of the boot up process. Fortunately, replacing this formatter board is not difficult, see instructions below.
How To Replace the Formatter Board Assembly HP LaserJet LJ-1100/1102?
1. Slide the right-side cover toward the back of the device to disengage it from the other covers. Lift the right side cover away from the printer.
2. Open the metal formatter door, and then lift the door up and free from its hinges at the back.
3. Disconnect three cables and remove six screws.
4. See picture below -- remove the formatter by pulling the left side of the formatter slightly outward to angle around the fan cover, then slide the entire formatter toward the front of the printer.
5. Reinstall the new formatter in reverse order of these steps.
6. If your old formatter has a memory module installed in one of the memory slots, remove the memory and transfer the memory module to the new board. Transferring the memory to the new board is especially important for network model formatters; as they need extra memory for the network port to be recognized.
7. Remember to send your old formatter back to PrinterTechs if you purchased this part with a core exchange. Re-use the original packaging for safe shipping.
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