32 Phaser 5400 Laser Printer Service GuideHow to Follow a Repair Analysis ProcedureSee the RAP Table example below.1. Each numbered step in a Repair Analysis Procedure instructs you to perform acertain action or procedure.2. The Actions and Questions box may contain additional information andnumbered procedure steps you must follow to perform the action.3. The action is followed by a question.4. If your response to the question is Yes, then follow the instructions for a Yes reply.5. If your response to the question is No, then follow the instructions for a No reply.6. Repair Analysis Procedures may ask you to take voltage readings at certain testpoints within the printer. The Plug/Jack Connector Locations and Master WiringDiagram sections of this manual contain information on test point locations andsignal names.7. Repair Analysis Procedures may ask you to run a specific diagnostic routine inorder to test a component or circuit. The Tests /Adjustments and Resetting NVRAMsections of this manual contain information on printer diagnostics.8. Repair Analysis Procedures often ask you to replace a printer component. The KeyFRU (Field Replaceable Unit) section of this manual provides detailed steps forremoving and replacing all major parts of the printer. If the component is not partof the base engine, the Repair Analysis Procedure indicates which technicalmanual contains the procedure.RAP Table ExampleStep Actions and Questions Yes No2 NO PAPER SENSOR TEST1. Enter Diagnostics.2. From the Main Menu, select ComponentTest / Sensor Input / press [4] to start, [0]to stop.3. Remove Tray 1 from the printer.4. Manually actuate and deactuate Tray 1No Paper Sensor.Does the LCD counter increment eachtime you press and release theactuator?Go to Step 3 Replace the NoPaper SensorAssembly
