3rd ASF load position excess load error (error code: 000551)

Occurrence condition

  • Disconnection or contact failure of the ASF Encoder FFC in the optional cassette

  • State in which load of ASF (Optional Cassette Unit) motor exceeds expected load

  • When rotated in the opposite direction to rotation direction (There was a sudden load error, and the motor rotated in the opposite direction in reaction to it)

Suspected cause

  • Jammed paper remained

  • ASF Encoder Assy failure

  • Paper path damaged and feed roller worn out

  • Gears locking due to foreign object

  • Locked because ASF gear train part failure

  • ASF Motor (Optional Cassette Unit) failure

  • Optional Paper Cassette Main Board Assy failure

Related parts
  • Vertical Feed Roller
  • Optional Paper Cassette Main Board Assy
Troubleshooting
ProcedureCheck and measureYesNo
1

Visually check the paper feed path.

  • Is there no jammed paper remaining in the paper feed path?
Go to step 2
  • Remove the jammed paper and foreign object.
2

Check the Vertical Feed Roller state

  • The Vertical Feed Roller is not damaged or worn out.
Go to step 3

  • Clean or replace the Vertical Feed Roller

  • Replace the Vertical Feed Roller in the case of damage.

3

Check the ASF gear train parts of the Optional Cassette Unit.

  • Check the optional cassette ASF wheel column components to make sure that foreign objects are not stuck, and there is no damage.
Go to step 4
  • Remove the foreign object.
  • Replace the Optional Cassette Unit in the case of damage.
4Replace the Optional Paper Cassette Main Board Assy.
  • Does the error occur after replacing the Optional Paper Cassette Main Board Assy?
Contact the EPSON Service Department.End