Before you pick up a screwdriver, you should perform basic troubleshooting to rule out simple glitches.
Sometimes the "scanner error" is actually related to a paper jam solenoid sticking elsewhere in the machine, causing a general mechanical error.
If cleaning the strip doesn't work and you hear a persistent "tack-tack" noise, the connecting the CIS (Contact Image Sensor) unit to the mainboard is likely damaged.
Verify that the manual scanner lock (if your specific sub-model has one) is in the "unlocked" position. 2. Clean the Calibration Strip
Before you pick up a screwdriver, you should perform basic troubleshooting to rule out simple glitches.
Sometimes the "scanner error" is actually related to a paper jam solenoid sticking elsewhere in the machine, causing a general mechanical error.
If cleaning the strip doesn't work and you hear a persistent "tack-tack" noise, the connecting the CIS (Contact Image Sensor) unit to the mainboard is likely damaged.
Verify that the manual scanner lock (if your specific sub-model has one) is in the "unlocked" position. 2. Clean the Calibration Strip