2-42 Phaser 4400 Laser Printer Service ManualLoad Tray [#] with [paper size] [paper type].There is a conflict between the size of the paper detected by the Size Switches, andthe length of paper detected by the length of time the Registration Sensor is actuated.10 1. Remove Tray 2/3.2. Manually actuate the No Paper Sensor.Does the No Paper Actuator movesmoothly?Go to step 11. Replace theTray 2/3 NoPaper Actuator(RRP 11.7 onpage 6-126).11 1. Enter Service Diagnostics and selectSensor Tests.2. Scroll to Tray 2 No Paper or Tray 3 NoPaper and press OK.3. Manually actuate the Tray 2/3 No PaperSensor.Does the message on the displayalternate between ìWith paperî andìWithout paperî as you press andrelease the actuator?Replace theEngine LogicBoard (RRP 9.3 onpage 6-89).Replace thefollowing inorder for theproblem feederassembly: Feeder PWB(RRP 11.9 onpage 6-128) Size PWB(RRP 11.19 onpage 6-139)Paper Size Error Troubleshooting ProcedureStep Actions and Questions Yes No1 Does the problem appear when using Tray 1, 2,or 3?Go to step 2. Go to step 3.2 1. Verify the size of paper currently in the MPT Tray.2. Select Menus and press OK, then3. Select Printer Setup Menu and press OK.4. Select Tray Setup Menu and press OK.5. Select MPT Setup Menu and press OK.Does the paper size checked in the MPT SetupMenu match the size actually in the MPT?Replace theEngine LogicBoard (RRP9.3 onpage 6-89).Set MPT sizeto the size ofpaper actuallyinstalled, thenpress OK.3 Is the paper size in the problem tray withinprinter specifications?Go to step 4. Replace withpaper thatmeetsspecifications.4 Check the side guides and the Paper Stack End Guidein the problem tray.Are all guides properly set for the size of paperinstalled?Go to step 5. Properly setthe guides.5 Check the size cam on the left side of the paper tray(see the Paper Size Actuators table below).Are the cams in good condition (not broken) anddo they move freely as the paper tray end guideis moved.Go to step 6. Replace thepaper tray (PL2.1 onpage 7-6/PL11.1 onpage 7-26).Tray [#] Empty Troubleshooting Procedure (cont'd.)Step Actions and Questions Yes No
