Lenovo LJ2500 Trouble Shooting Processor Error resolution _ Hardware Maintenance

The author of the office of a Lenovo LJ2500 laser printer in a file when the Tu Yu power outage, after the call to open the printer switch, the printer control Panel "Toner Lamp", "Ready lamp", "Warning Light", "data lamp" flashing constantly, and can not be normal boot after the toner cartridge preheating. According to the symptom reference provided in the printer user's manual, this behavior is an error when the printer processor is running. The author in accordance with the method described in the manual to turn off the printer power, wait for a moment before turning on the power switch, the system shows "printer error, the system can not specify the device."

Troubleshooting: Due to distance from Lenovo Repair Station, the author decided to solve their own problems. Considering a sudden blackout usually does not burn out the printer processor, most of which is a soft fault. So I decided to try to let the printer print the test page itself: Turn off the printer first, then press and hold the Control Panel button on the printer, turn on the printer power, when the toner cartridge, ready, warning, data four LEDs flashing a few times after the toner Cartridge indicator light, release the Control Panel button and then press the button again, The printer does not print a test page, but the cartridge LED is off and the familiar ready LEDs are lit-this is the normal indication that the printer is powered on. I quickly shut down the printer power, and then reopened, you can hear the drum preheating when the sound of rotation, again bring up the document printing, print back to normal.