• Code: EF18
• Description: Saddle Stitch Finisher additional folding roller home position detection abnormality
• Causes: Additional folding home position sensor (S39) Additional folding motor (M20) Saddle controller board
• Remedy: Additional folding carrier • Is there any mechanical problem when the additional folding carrier is moved? Additional folding home position sensor (S39) • Sensor check • Connector check • Harness check Additional folding motor (M20) • Motor check • Connector check • Harness check Saddle controller board • Connector check (CN18, CN19) • Board check

• Code: EF19
• Description: Saddle paper folding jam
• Causes: Exit transport sensor (S41) Saddle controller board
• Remedy: Finisher • Is there any paper remaining in the paper transport path in the equipment or the saddle stitch section of the Finisher? Exit transport sensor (S41) • Sensor check • Connector check • Harness check Saddle controller board • Connector check (CN19) • Board check

• Code: EF20
• Description: Saddle stacker jam
• Causes: Stacker paper detection sensor (S30) Saddle controller board
• Remedy: Finisher • Is there any paper remaining in the paper transport path in the equipment or the saddle stitch section of the Finisher? Stacker paper detection sensor (S30) • Sensor check • Connector check • Harness check Saddle controller board • Connector check (CN19) • Board check

• Code: EF21
• Description: Hole Punch Unit paper leading edge skew detection abnormality
• Causes: Skew sensor (S7-1/S7-2) Punch controller board
• Remedy: Finisher • Is there any paper remaining on the paper transport path? • Figure out the cause of the paper stopping (e.g. folding) and correct it. Then remove the paper Skew sensor (S7-1/S7-2) • Sensor check • Connector check • Harness check Punch controller board • Connector check (CN19) • Board check

• Code: EF22
• Description: Hole Punch Unit paper leading edge detection abnormality
• Causes: Paper position sensor (S6-1/S6-2) Punch controller board
• Remedy: Finisher • Is there any paper remaining on the paper transport path? • Figure out the cause of the paper stopping (e.g. folding) and correct it. Then remove the paper. Paper position sensor (S6-1/S6-2) • Sensor check • Connector check • Harness check Punch controller board • Connector check (CN19) • Board check

• Code: EF23
• Description: Hole Punch Unit paper alignment abnormality
• Causes: Sideways deviation home position sensor (S3) Sideways adjustment motor (M2) Punch controller board
• Remedy: Finisher • Is there any paper remaining in the paper transport path in the equipment or the Finisher? Sideways deviation home position sensor (S3) • Sensor check • Connector check • Harness check Paper position sensor (S6-1/S6-2) • Sensor check • Connector check • Harness check Sideways adjustment motor (M2) • Motor check • Connector check • Harness check Punch controller board • Connector check • Board check

• Code: EF24
• Description: Hole Punch Unit paper trailing edge skew detection abnormality
• Causes: Skew sensor (S7-1/S7-2) Punch controller board
• Remedy: Finisher • Is there any paper remaining on the paper transport path? • Figure out the cause of the paper stopping (e.g. folding) and correct it. Then remove the paper. Skew sensor (S7-1/S7-2) • Sensor check • Connector check • Harness check Punch controller board • Connector check (CN19) • Board check

• Code: EF25
• Description: Hole Punch Unit paper trailing edge detection abnormality
• Causes: Paper position sensor (S6-1/S6-2) Punch controller board
• Remedy: Finisher • Is there any paper remaining on the paper transport path? • Figure out the cause of the paper stopping (e.g. folding) and correct it. Then remove the paper. • Remove paper dust or punches on the paper position sensor (S6-1, S6-2). Paper position sensor (S6-1/S6-2) • Sensor check • Connector check • Harness check Punch controller board • Connector check (CN19) • Board check