• Code: CB84
• Description: Hole Punch Unit - Main CPU program error
• Causes: Hole punch control PC board
• Remedy: Hole punch control PC board (HP) • Is the firmware version of the PNC board (HP) latest? • Connector check • Board check

• Code: CB91
• Description: Saddle Stitch Finisher flash ROM abnormality
• Causes: Saddle controller PC board
• Remedy: Saddle controller PC board (SDL) • Check if the conductor pattern on the saddle controller PC board (SDL) is open circuited or short circuited. • Connector check • Board check

• Code: CB92
• Description: Saddle Stitch Finisher RAM abnormality
• Causes: Saddle controller PC board
• Remedy: Saddle controller PC board (SDL) • Check if the conductor pattern on the saddle controller PC board (SDL) is open circuited or short circuited. • Connector check • Board check

• Code: CB93
• Description: Additional folding motor abnormality
• Causes: Additional folding motor Saddle control PC board
• Remedy: Additional folding carrierr • Is there any mechanical problem when the additional folding carrier is moved? • Connector check • Harness check Additional folding motor (M20) • Motor check • Connector check • Harness check Saddle control PC board (SDL) • Connector check (CN18) • Board check

• Code: CB94
• Description: Saddle transport motor abnormality
• Causes: Saddle transport motor Saddle control PC board
• Remedy: Transport roller • Is there any mechanical problem when the transport rollers are rotated? Saddle transport motor (M16) • Motor check • Connector check • Harness check Saddle control PC board (SDL) • Connector check (CN18) • Board check

• Code: CB95
• Description: Stacker motor abnormality
• Causes: Stacker motor Saddle control PC board
• Remedy: Stacker carrier • Is there any mechanical problem when the stacker carrier is moved? Stacker motor (M14) • Motor check • Connector check • Harness check Saddle control PC board (SDL) • Connector check (CN4) • Board check

• Code: CBA0
• Description: Stitch motor (front) abnormality: Stitch motor (front) is not rotating or rotary cam is not moving normally. [MJ-1103/1104]
• Causes: Stitcher home position switch Stitcher motor Saddle control PC board
• Remedy: Front stitcher/ Rear stitcher • Are the front and rear stitchers and their stands installed properly? Stitcher home position switch (SW7/ SW5) • Switch check • Connector check • Harness check Stitcher motor (M7/M6) • Motor check • Connector check • Harness check Saddle control PC board (SDL) • Connector check • Board check

• Code: CBB0
• Description: Stitch motor (rear) abnormality: Stitch motor (rear) is not rotating or rotary cam is not moving normally. [MJ-1103/1104]
• Causes: Stitcher home position switch Stitcher motor Saddle control PC board
• Remedy: Front stitcher/ Rear stitcher • Are the front and rear stitchers and their stands installed properly? Stitcher home position switch (SW7/ SW5) • Switch check • Connector check • Harness check Stitcher motor (M7/M6) • Motor check • Connector check • Harness check Saddle control PC board (SDL) • Connector check • Board check