Rap 11: Bottom Tractor Feed Unit (Btfu) Problem - OKIDATA Pacemark 3410 Service Manual

Page: 112
Service Guide PM3410
Chapter 4 Failure & Repair Analysis

RAP 11: Bottom Tractor Feed Unit (BTFU) Problem

START.
Is the BTFU cable attached to the CSF connector?
NO Connect the cable.
YES Is the release lever in the cut sheet position?
NO Place the release lever in the cut sheet position.
YES Does the paper feed properly?
YES End of procedure.
NO Does the paper move at all?
NO Replace the BTFD board.
Is the problem resolved?
YES End of procedure.
NO Replace the bottom feed unit motor.
Is the problem resolved?
YES End of procedure.
NO Replace the main logic board.
YES Go to A.
A
Does the paper jam?
YES Clear the paper path.
Is the problem resolved?
YES End of procedure.
NO Replace the bottom feed unit motor.
Is the problem resolved?
YES End of procedure.
NO Replace the bottom tractor assembly.
NO Is paper skewed?
YES Properly install the paper.
Is problem resolved?
YES End of procedure.
NO Replace the bottom tractor assembly.
NO Contact Technical Support.