• Code: 024-946
• Description: Tray 1 Unknown Paper Size One of the following errors was detected. • During Copy Job and Diag Job, Tray 1 was selected but the paper guides in Tray 1 are in a configuration that is not supported by the System. • During Copy Job and Diag Job, Tray 1 was selected but it has been pulled out.
• Remedy: Press [Stop] on the UI Panel and either install Tray 1 or check the position of the paper guides and load the correct paper. NOTE: When performing the operation again, the same Fault will occur if the user had proceeded without changing the settings. If the problem persists, check the following: • The Tray 1 paper guide mechanism for damage and foreign substances. • The Tray 1 Paper Size Switch for damage, improper installation, and Actuator operation failure. • Tray 1 Paper Size Switch: Analog Monitor [072-050]/Input Check [072-114] (PL 9.1) • The connection between the Tray 1 Paper Size Switch J109 and the ESS/MCU PWB J412 for open circuit, short circuit, and poor contact. If no problems are found, replace the ESS/MCU PWB (PL 18.3).

• Code: 024-947
• Description: Tray 2 Unknown Paper Size One of the following errors was detected. • During Copy Job and Diag Job, Tray 2 was selected but the paper guides in Tray 2 are in a configuration that is not supported by the System. • During Copy Job and Diag Job, Tray 2 was selected but it has been pulled out.
• Remedy: Press [Stop] on the UI Panel and either install Tray 2 or check the position of the paper guides and load the correct paper. NOTE: When performing the operation again, the same Fault will occur if the user had proceeded without changing the settings. If the problem persists, check the following: • The Tray 2 paper guide mechanism for damage and foreign substances. • The Tray 2 Paper Size Switch for damage, improper installation, and Actuator operation failure. • Tray 2 Paper Size Switch: Analog Monitor [072-051]/Input Check [072-107] (PL 10.1) • The connection between the Tray 2 Paper Size Switch J820C and the STM PWB J548C for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • STM PWB (PL 10.6) • ESS/MCU PWB (PL 18.3)

• Code: 024-948
• Description: Tray 3 Unknown Paper Size One of the following errors was detected. • During Copy Job and Diag Job, Tray 3 was selected but the paper guides in Tray 3 are in a configuration that is not supported by the System. • During Copy Job and Diag Job, Tray 3 was selected but it has been pulled out.
• Remedy: Press [Stop] on the UI Panel and either install Tray 3 or check the position of the paper guides and load the correct paper. NOTE: When performing the operation again, the same Fault will occur if the user had proceeded without changing the settings. If the problem persists, check the following: • The Tray 3 paper guide mechanism for damage and foreign substances. • The Tray 3 Paper Size Switch for damage, improper installation, and Actuator operation failure. • Tray 3 Paper Size Switch: Analog Monitor [072-052]/Input Check [072-110] (PL 11.1) • The connection between the Tray 3 Paper Size Switch J820 and the 2TM PWB J548 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • 2TM PWB (PL 11.6) • ESS/MCU PWB (PL 18.3)

• Code: 024-949
• Description: Tray 4 Unknown Paper Size One of the following errors was detected. • During Copy Job and Diag Job, Tray 4 was selected but the paper guides in Tray 4 are in a configuration that is not supported by the System. • During Copy Job and Diag Job, Tray 4 was selected but it has been pulled out.
• Remedy: Press [Stop] on the UI Panel and either install Tray 4 or check the position of the paper guides and load the correct paper. NOTE: When performing the operation again, the same Fault will occur if the user had proceeded without changing the settings. If the problem persists, check the following: • The Tray 4 paper guide mechanism for damage and foreign substances. • The Tray 4 Paper Size Switch for damage, improper installation, and Actuator operation failure. • Tray 4 Paper Size Switch: Analog Monitor [072-053]/Input Check [072-113] (PL 11.1) • The connection between the Tray 4 Paper Size Switch J824 and the 2TM PWB J548 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • 2TM PWB (PL 11.6) • ESS/MCU PWB (PL 18.3)

• Code: 024-950
• Description: Tray 1 No Paper Any of the following was detected: • The paper in the Tray 1 has ran out. (When the ATS function of Tray 1 is disabled) • Although the paper in the Tray 1 was detected to have ran out, paper is not supplied from another Tray. (When the ATS function of Tray 1 is enabled)
• Remedy: 1. Load paper into the Tray 1. (If this had occurred during ATS of Tray 1 or Tray 2, load paper with the same settings as for the applicable Tray into other than MSI.) 2. If the problem persists, check the following: • The paper supply mechanism of the applicable Tray for damage and foreign substances. • The No Paper Sensor of the Tray 1 (Input Check [072-100]) for operation failure. (PL 9.1) • The No Paper Sensor of the Tray 1 for contamination, improper installation, and Actuator operation failure. 3. If no problem is found, replace the following parts: • ESS/MCU PWB (PL 18.3)

• Code: 024-951
• Description: Tray 2 No Paper Any of the following was detected: • The paper in the Tray 2 has ran out. (When the ATS function of Tray 2 is disabled) • Although the paper in the Tray 2 was detected to have ran out, paper is not supplied from another Tray. (When the ATS function of Tray 2 is enabled)
• Remedy: 1. Load paper into the Tray 2. (If this had occurred during ATS of Tray 1 or Tray 2, load paper with the same settings as for the applicable Tray into other than MSI.) 2. If the problem persists, check the following: • The paper supply mechanism of the applicable Tray for damage and foreign substances. • The No Paper Sensor of the Tray 2 (Input Check [072-101]) for operation failure. (PL 10.3) • The No Paper Sensor of the Tray 2 for contamination, improper installation, and Actuator operation failure. 3. If no problem is found, replace the following parts: • ESS/MCU PWB (PL 18.3) • STM PWB (Tray 2) (PL 10.6)

• Code: 024-952
• Description: Tray 3 No Paper One of the following errors was detected. However, this is not detected until the paper is about to be fed. • During Copy Job or Print Job, Tray 3 was selected but Tray 3 has run out of paper and the ATS function for Tray 3 is disabled. This also includes the cases where Tray 3 was selected by the System Controller due to APS result. • During Copy Job or Print Job, Tray 3 was selected by the System due to APS result but it was detected that Tray 3 has run out of paper and the machine is unable to ATS to other Trays.
• Remedy: Perform any of the following: • Press [Stop] on the UI Panel. • Load paper into Tray 3. • If this had occurred during ATS, load paper with the same settings as for Tray 3 into other than MSI. If the problem persists, check the following: • The Tray 3 paper supply mechanism for damage and foreign substances. • The Tray 3 No Paper Sensor for contamination, improper installation, and Actuator operation failure. • Tray 3 No Paper Sensor: Input Check [072-102] (PL 11.3) • The connection between the Tray 3 No Paper Sensor J102B and the 2TM PWB J549 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • 2TM PWB (PL 11.6) • ESS/MCU PWB (PL 18.3)

• Code: 024-953
• Description: Tray 4 No Paper One of the following errors was detected. However, this is not detected until the paper is about to be fed. • During Copy Job or Print Job, Tray 4 was selected but Tray 4 has run out of paper and the ATS function for Tray 4 is disabled. This also includes the cases where Tray 4 was selected by the System Controller due to APS result. • During Copy Job or Print Job, Tray 4 was selected by the System due to APS result but it was detected that Tray 4 has run out of paper and the machine is unable to ATS to other Trays.
• Remedy: Perform any of the following: • Press [Stop] on the UI Panel. • Load paper into Tray 4. • If this had occurred during ATS, load paper with the same settings as for Tray 4 into other than MSI. If the problem persists, check the following: • The Tray 4 paper supply mechanism for damage and foreign substances. • The Tray 4 No Paper Sensor for contamination, improper installation, and Actuator operation failure. • Tray 4 No Paper Sensor: Input Check [072-103] (PL 11.3) • The connection between the Tray 4 No Paper Sensor J102A and the 2TM PWB J549 for open circuit, short circuit, and poor contact. If no problems are found, replace the following parts in sequence: • 2TM PWB (PL 11.6) • ESS/MCU PWB (PL 18.3)