• Code: 024-959
• Description: Tray 2 Size Mismatch Tray 2 size mismatch.
• Remedy: The correct size paper is loaded in Tray 2. Y↓N→Load the correct size paper and return to Service Call Procedures. Go to RAP 007-270, Tray 2 Paper Size Sensor.

• Code: 024-960
• Description: Tray 3 Size Mismatch Tray 3 size mismatch.
• Remedy: The correct size paper is loaded in Tray 3. Y↓N→Load the correct size paper and return to Service Call Procedures. Go to RAP 007-271, Tray 3 Paper Size Sensor.

• Code: 024-961
• Description: Tray 4 Size Mismatch Tray 4 size mismatch.
• Remedy: The correct size paper is loaded in Tray 4. Y↓N→Load the correct size paper and return to Service Call Procedures. Go to RAP 007-272 (Tray 4 Paper Size Sensor - 3TM) or RAP 007-276 (Tray 4 Paper Size Sensor - TTM).

• Code: 024-962
• Description: Tray 5 Size Mismatch Tray 5 size mismatch.
• Remedy: The correct size paper is loaded in Tray 5. Y↓N→Load the correct size paper and return to Service Call Procedures. Go to RAP 007-273 (Tray 5 Paper Size Sensor - 3TM) or RAP 007-277 (Tray 5 Paper Size Sensor - TTM).

• Code: 024-976
• Description: Finisher Staple Status NG The Staple Home Sensor has not switched Off to On within the specified time after the Staple Motor started rotating forward. The Staple Head Home Sensor turned On within xxx msec. after the Staple Motor reversed.
• Remedy: • Check the Actuator for deformation. • Check the Staple Home Sensor for improper installation. • Check the Staple Home Sensor connectors for connection failure. • Check the Staple Guide for a foreign substance and deformation. • Check the Staple Motor for operating failure. • Check the Staple Motor connectors for connection failure.
  Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Perform the Staple Motor test alternately. The Staple Motor (PL 21.6) energizes. Y↓N→Check continuity between the Stapler Head and Finisher PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Stapler Head (PL 21.6). If the problem continues, replace the Finisher PWB (PL 21.12). Actuate the Staple Home Sensor (PL 21.6). Perform the Staple Motor test alternately. The display changes. Y↓N→Check continuity between the Stapler Head and Finisher PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Stapler Head (PL 21.6). If the problem continues, replace the Finisher PWB (PL 21.12). If the problem continues, replace the Finisher PWB (PL 21.12).

• Code: 024-978
• Description: Booklet Stapler NG Error signal On and Ready signal On output from the Staple were detected after Booklet Stapling operation.
• Remedy: Check continuity between the Booklet PWB and Finisher PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Staple (PL 21.16). The problem is resolved. Y↓N→Replace the Booklet PWB (PL 21.12). If the problem continues, replace the Finisher PWB (PL 21.12). If the problem continues, replace the Finisher PWB (PL 21.12).

• Code: 024-979
• Description: Stapler Near Empty The Finisher’s Stapler Cartridge is low on staples, only 20 more sets can be stapled.
• Remedy: • Check the Stapler Head connectors for connection failure. • Check Staple remaining amount.
  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 Low Staple Sensor (PL 21.6). ‘LOW’ (staples available) is displayed. Y↓N→Check continuity between the Stapler Head and Finished PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Stapler Head (PL 21.6). If the problem continues, replace the Finisher PWB (PL 21.12). If the problem continues, replace the Finisher PWB (PL 21.12).

• Code: 024-980
• Description: Finisher Stacker Tray Full Stacker No Paper Sensor On was detected during the Stacker Tray height adjusting operation.
• Remedy: • Check the Stacker No Paper Sensor for improper installation. • Check the Stacker No Paper Sensor connectors for connection failure. • Check the Elevator Motor for operation failure. • Check the Elevator Motor connectors for connection failure. CAUTION Caution must be used when activating the Elevator Motor test. When activating this test in the Down position, there is no limit sensor for downward Stacker travels. Downward steps increment (or decrement) in single steps, not 5. When continuing in the Down direction, DO NOT continue after an initial thump sound is heard. Further downward movements may cause damage to the Stacker Unit/Finisher.
  Enter Service Diagnostics Menu: Printer Menu > Troubleshooting > Service Tools > Printer Status Page > hold the Up and Down buttons simultaneously > Run Service Diagnostics > OK. Perform the Elevator Motor test alternately. The Elevator Motor (PL 21.4) energizes. Y↓N→Check continuity between the Elevator Motor and Finisher PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Elevator Motor (PL 21.4). If the problem continues, replace the Finisher PWB (PL 21.12). Block/unblock the Stacker Encoder Sensor (PL 21.4). The display changes. Y↓N→Check continuity between the Stacker Encoder Sensor and Finisher PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Stacker Encoder Sensor (PL 21.4). If the problem continues, replace the Finisher PWB (PL 21.12). Block/unblock the Stacker No Paper Sensor (PL 21.4). The display changes. Y↓N→Check continuity between the Stacker No Paper Sensor and Finisher PWB. The continuity check is OK. Y↓N→Repair the open circuit or short circuit. Replace the Stacker No Paper Sensor (PL 21.4). If the problem continues, replace the Finisher PWB (PL 21.12). If the problem continues, replace the Finisher PWB (PL 21.12).