• Code: 003-948
• Description: Tray 4 Out of Place Tray 4 not in position.
• Remedy: Ensure Tray 4 is closed. Turn the printer power Off, then On. The problem continues. Y↓N→Return to the Service Call Procedures. The machine is equipped with a 3TM. Y↓N→Go to RAP 007-276, Tray 4 Paper Size Sensor (TTM). Go to RAP 007-272, Tray 4 Paper Size Sensor (3TM).

• Code: 003-949
• Description: Tray 5 Out of Place Tray 5 not in position.
• Remedy: Ensure Tray 5 is closed. Turn the printer power Off, then On. The problem continues. Y↓N→Return to the Service Call Procedures. The machine is equipped with a 3TM. Y↓N→Go to RAP 007-277, Tray 5 Paper Size Sensor (TTM). Go to RAP 007-273, Tray 5 Paper Size Sensor (3TM).

• Code: 003-950
• Description: Tray 2 No Paper Sensor Tray 2 No Paper Sensor failure.
• Remedy: Remove Tray 2. Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Actuate Tray 2 No Paper Sensor (PL 2.4). The display changes. Y↓N→Check the circuit of the Tray 2 No Paper Sensor. Refer to Transmissive Sensor Procedure for troubleshooting procedure. • Go to RAP 007-281 (Tray 2, 3, 4, 5) Lift Failure) and check the circuit of the Tray 2 Level Sensor. • Ensure that the connectors shown in the circuit diagram are securely connected and that the wires are not damaged. • Replace the Tray 2 No Paper Sensor (PL 2.4). • If the problem persists, replace the Engine Control Board (MCU PWB) (PL 13.1).

• Code: 003-951
• Description: Tray 3 No Paper Sensor Tray 3 No Paper Sensor failure.
• Remedy: Remove Tray 3. Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Actuate the Tray 3 No Paper Sensor (TTM or - 3TM). The display changes. Y↓N→Check the circuit of the Tray 3 No Paper Sensor (TTM or 3TM). Refer to Transmissive Sensor Procedure for troubleshooting procedure. Press Stop. • Go to the 007-281 RAP and check the circuit of the Tray 3 No Paper Sensor (PL 2.4). • Ensure that the connectors shown in the circuit diagram (TTM or 3TM) are securely connected and that the wires are not damaged. • Replace the Tray 3 No Paper Sensor (PL 2.4). • If the problem persists, replace the Tray Module PWB (PL 16.15 - TTM or PL 15.9 - 3TM).

• Code: 003-952
• Description: Tray 4 No Paper Sensor Tray 4 No Paper Sensor failure.
• Remedy: Remove Tray 4. Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Actuate the Tray 4 No Paper Sensor. The display changes. Y↓N→Check the circuit of the Tray 4 No Paper Sensor (TTM or 3TM). Refer to the Transmissive Sensor Procedure for troubleshooting procedure. • Go to the 007-281 RAP (Tray Lift Failure) and check the circuit of the Tray 4 No Paper Sensor (PL 2.4). • Ensure that the connectors shown in the circuit diagram (TTM or 3TM) are securely connected and that the wires are not damaged. • Replace the Tray 4 No Paper Sensor (PL 2.4). • If the problem persists, replace the Tray Module PWB (PL 16.15 - TTM or PL 15.9 - 3TM).

• Code: 003-953
• Description: Tray 5 No Paper Sensor Tray 5 No Paper Sensor failure.
• Remedy: Remove Tray 5. Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Actuate the Tray 5 No Paper Sensor (TTM or - 3TM). The display changes. Y↓N→Check the circuit of the Tray 5 No Paper Sensor (TTM or 3TM). Refer to Transmissive Sensor Procedure for troubleshooting procedure. • Go to the 007-281 RAP (Tray Lift Failure) and check the circuit of the Tray 5 No Paper Sensor (PL 2.4). • Ensure that the connectors shown in the circuit diagram (TTM or 3TM) are securely connected and that the wires are not damaged. • Replace the Tray 5 No Paper Sensor (PL 2.4). • If the problem persists, replace the Tray Module PWB (PL 16.15 - TTM or PL 15.9 - 3TM).

• Code: 003-954
• Description: Tray 1 (MPT) No Paper Sensor Tray 1 (Bypass) no paper.
• Remedy: Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Actuate the Tray 1 (MPT) No Paper Sensor (PL 2.12). The display changes. Y↓N→Check the circuit of the Tray 1 (MPT) No Paper Sensor. Refer to Transmissive Sensor Procedure for troubleshooting procedure. • Ensure that the connectors shown in the circuit diagram are securely connected and that the wires are not damaged. • Replace the Tray 1 No Paper Sensor (PL 2.12). • If the problem persists, replace the Engine Control Board (MCU PWB) (PL 13.1).

• Code: 004-322
• Description: Main Motor Fail Main Motor failure.
• Remedy: 1 Enter Service Diagnostics Menu (refer to Control Panel Diagnostics). Does the Main Motor run in diagnostics? Go to step 2. Go to step 3. 2 Does the voltage at P/J 203-8 change from +3.3 VDC to 0 VDC when the motor is turned on and off in Service Diagnostics? Check the wiring from J 203-8 to J536-3 for open or shorted to ground. If the wiring is OK, replace the Interface Board. Replace the Main Drive Motor Assembly. 3 Check P/J 203-1 and P/J 203-2 for +24 VDC. Do both pins have +24 VDC? Go to step 4. Replace the Interface PWB. 4 Turn off the printer and check the wiring between J203 and J 536 for an open condition or short to ground. Is the wiring OK? Replace the Interface PWB. Repair the wiring harness.