3-44 Phaser 7400 Color Printer Options Service ManualPaper Not Available Load Tray [3][4][5][6] with[size][type]Tray [3] [4] [5] [6] paper type mismatch error. The Paper Size Switch indicates thatthe media loaded in the source tray does not match the size specified by the print job.Initial Actions:■ Inspect the tray to ensure that it is free of obstructions, is loaded with theexpected media, and the guides are adjusted correctly.■ Cycle printer power.■ If the problem persists, follow the procedure below.Troubleshooting Reference TableApplicable Parts Wiring and Plug/Jack References■ Paper Size Switch■ Paper Tray■ SIZE Harness■ Paper Size Switch Signal Definitions table (see Book1)Troubleshooting Procedure TableStep Actions and Questions Yes No1 Check the paper in the affected tray.Is paper loaded in the tray properly?Go to Step 2. Reload thepaper.2 Check the tray paper guides.Are the paper guides set correctly?Go to Step 3. Reset theguides.3 Check the Paper Size Switch for the affectedtray.Is the switch installed correctly?Go to Step 4. Correct theinstallation.4 Test the Paper Size Switch for the affected tray.Run the Service Diagnostics Size Sensor testfor the affected tray.Does the sensor state change each time theloaded tray is moved in or out?Go to Step 7. Go to Step 5.5 Check the Paper Size Switch connection.Is the switch connected at either end?Go to Step 6. Connect theswitch.6 Check continuity between the affected PaperSize Switch and the Option Control Board.Is the harness conductive?Go to Step 7. Repair thewiring.7 Check for +5 V to the Paper Size Switch.Is there +5 V across each switch <=> groundwhen the switch is actuated?Replace thePaper Size Switchfor the affectedtray (page 7-30).Replace theOption ControlBoard.
