• Code: 795-52
• Description: Book Exit Sensor (S64) Error PB (D391) No book could be detected at the entrance of the trimming unit. -or- The book did not arrive in the trimming unit because it jammed. (The trim unit entrance sensor (S92) did not go ON.)
• Causes: • Main grip lift motor (M22) connections loose, broken, defective • Motor defective • Book exit sensor (S64) harness loose, broken, defective • Sensor defective
• Remedy:

• Code: 795-53
• Description: Book Registration Sensor (S88) Error PB (D391) A book was not detected at the book registration sensor pair (the book registration sensor did not go ON).
• Causes: • Book jammed, failed to arrive at book registration sensor • Slide motor (M44) connections loose, broken, defective • Motor defective • Book registration sensor (S88) harness loose, broken, defective • Sensor defective • Sensor flag error, overload
• Remedy:

• Code: 795-54
• Description: Book Exit Sensor (S64) Error PB (D391) The book exit sensor went ON when the system was turned ON, indicating that a book was at the book exit sensor above the book grip and rotation unit.
• Causes: • Book jammed at the entrance of the book grip and rotation unit. • Book exit sensor (S64) defective
• Remedy:

• Code: 795-55
• Description: Exit Sensor (S64) Error PB (D391) The slave control board could detect no paper at the entrance of the trimming unit. The entrance sensor did not detect the signature within 6860 ms from when the signature exited the gluing unit.
• Causes: • Trim unit entrance sensor (S92) defective
• Remedy:

• Code: 795-56
• Description: Main Grip Signature Sensor (S55) Error PB (D391) No signature was detected in the gripper of the main grip unit. -or- No signature was detected in the main grip unit after the signature passed from the sub grip to the main grip.
• Causes: • Main grip signature sensor (S55) defective
• Remedy:

• Code: 795-57
• Description: Book Exit Sensor (S64) Error PB (D391) The trim unit entrance sensor remained ON (when no book should have been present). -or- The trim unit entrance sensor (S92) went ON when the system was turned on. -or- The book exit sensor (S64) remained ON after jam removal.
• Causes: • Book jam at power on • Main group lift motor (M22) connections loose, broken, defective • Motor defective • Book exit sensor (S64) harness loose, broken, defective • Sensor defective
• Remedy:

• Code: 795-58
• Description: Book Registration Sensor (S92) Lag Error PB (D391) The book registration sensor remained ON because the book did not move from the sensor location. -or- The book registration sensor went on when the system was turned on.
• Causes: • Book jam above the trimmer unit • Slide motor (M44) connections loose, broken, defective • Motor defective • Book registration (S92) sensor harness loose, broken, defective • Sensor defective
• Remedy:

• Code: 795-59
• Description: Book Arrival Sensor (S76) Lag Error PB (D391) The book arrival sensor remained ON because the book did not leave the sensor location. The book remained in the book buffer area and failed to fall onto the book output tray.
• Causes: • Slide motor (M44) connections loose, broken, defective • Motor defective • Book arrival sensor (S76) harness loose, broken, defective • Sensor defective
• Remedy: