• Code: 66.90.42
• Display: 66.90.42
• Description: Booklet Paper Position Select Motor Error The paper-positioning-plate motor (M4), located in the booklet making area of the finisher, controls the up and down positioning of the stacked paper for stitch stapling and folding. The error occurs when the paper-positioning-plate home-position sensor (PI7) does not turn on when the paper-positioning-plate motor (M4) has driven for 1500 pulses. This error also occurs when the paper-positioning-plate home-position sensor (PI7) does not turn off when the paper-positioning-plate motor (M4) has driven for 300 pulses.
• Remedy: Control panel diagnostics: M4-guide plate motor (paper-positioning-plate motor). 1. Test the paper-positioning-plate motor M4 using the finisher component test from the product control panel. During the test, observe the movement of the booklet-maker-guide plate, and make sure it is not obstructed or damaged. 2. Remove the booklet maker output bin to gain access to the paper-position-plate home-position sensor PI7 and delivery door. 3. Remove the plate that holds PI7, and then carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. 4. Make sure that the sensor is securely fastened to the plate. 5. Check the wiring at the sensor. 6. If the error persists, replace sensor PI7 and the positioning-plate assembly together. 7. If the error persists, replace the stacker controller PCA.

• Code: 66.90.43
• Display: 66.90.43
• Description: Booklet Paper Guide Motor Error The guide motor (M3), located in the booklet-making area of the finisher, controls the position of the guide plate. The guide plate is positioned in front of the folding rollers as the paper stack is being stapled, allowing the bottom edge of the paper to smoothly pass by the folding rollers. When the stacked paper is lowered to the folding position, the guide motor (M3) lowers the guide plate out of the way to allow the paper stack to be pushed into the folding rollers. This error occurs when the guide-home-position sensor (PI13) does not turn on when the guide motor (M3) has driven for 700 pulses. This error also occurs when the guide-home-position sensor (PI13) does not turn off when the guide motor (M3) has driven for 50 pulses.
• Remedy: Control panel diagnostics: M3 guide motor. 1. Carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. 2. Make sure that the sensor is securely fastened to the plate. 3. Check the wiring at the sensor. 4. Check sensor PI13 for damage. 5. Check the guide, gears, and gear tracks on the front and rear frame for damage. Replace components as necessary. 6. If the error persists, replace the guide motor M3 and the guide-home-position sensor PI13 together.

• Code: 66.90.44
• Display: 66.90.44
• Description: Booklet Align Motor Error The alignment motor (M5), located in the booklet making area of the finisher, drives the two alignment plates that adjust the side edges of the stacked paper so that the sheets of paper in the stack is perfectly aligned with one another. This error occurs when the aligning-plate home-position sensor (PI5) does not turn on when the aligning-plate motor (M5) has driven for 500 pulses. This error also occurs when the aligning-plate home-position sensor (PI5) does not turn off when the aligning-plate motor (M5) has driven for 50 pulses.
• Remedy: Observe the alignment plates during a Booklet Maker stacking operation. If the alignment plates move during the operation, perform the following steps: 1. Check sensor PI5 for damage. 2. Make sure that the sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. 3. Make sure that the sensor is securely fastened to the plate. 4. Carefully clean the sensor body by gently blowing clean air across the sensors to remove dust and debris. 5. If the alignment plates or the alignment-plates drive gear has been removed or replaced, make sure that the plates are correctly aligned with each other on the drive gear. If the alignment plates do not move during the operation, perform the following steps: 1. Remove motor M5 and check the gears between the motor and alignment plates for damage. Replace components as necessary. 2. Make sure that connector J7 on the saddle-stitcher controller PCA is fully seated and not damaged. 3. Check the wiring at the M5 motor. 4. If the error persists, replace the alignment motor M5. 5. If the alignment plates or the alignment-plates drive gear has been removed or replaced, make sure that the plates are correctly aligned with each other on the drive gear.

• Code: 66.90.45
• Display: 66.90.45
• Description: Booklet Push Motor Error This error occurs when the paper-pushing-plate home-position sensor (PI14) does not turn on when the paper-pushing-plate motor (M8) has driven for 0.3 seconds. This error can also occur under one of the these conditions: • When the paper-pushing-plate home-position sensor (PI14) does not turn off when the paperpushing- plate motor (M8) has driven for 80 ms • When the paper-pushing-plate leading-edge-position sensor (PI15) does not turn off when the paper-pushing-plate motor (M8) has driven for 80 ms • When the number of pulses detected by the paper-pushing-plate-motor clock sensor (PI1) is less than the expected standard value • When the paper-pushing-plate leading-edge-position sensor (PI15) does not turn on when the paper-pushing-plate motor (M8) has driven for 0.3 seconds.
• Remedy: 1. Open the front finishing door, and then activate the front-door switch (MSW31) and front-door sensor (PI32) so that the finisher will operate with the front door open 2. Turn the engine and finisher power off to clear the error, and then turn the power on. WARNING! Operating the finisher with the front door open exposes moving parts that can cause serious injury. Be very careful operating the finisher with the front door open. 3. Observe the paper-pushing plate motor M8 (located in the lower-right front corner of the finisher), associated gears, and the paper-pushing plate for proper motion. • If motor M8 does not rotate, replace the motor-mount assembly. NOTE: The motor-mount assembly includes the paper-pushing-plate motor M8. • If motor M8 does rotate, but the paper-pushing plate does not move or moves erratically, check the drive gears and paper-pushing plate for wear or damage. Replace components as necessary. • If motor M8 does rotate and the paper-pushing plate moves correctly, the plate movement sensors might have failed. a. Inspect the paper-pushing-plate home-position sensor PI14, pushing-plate leadingedge- position sensor PI15, and paper-pushing-motor clock sensor PI1. b. Make sure that the sensors are securely fastened to the chassis. c. Check sensor PI4, sensor PI15, and sensor PI1 for damage. d. Make sure that connectors J6, J9, and J23 on the saddle-stitcher controller PCA are fully seated and not damaged. e. Check the wiring at the sensors. f. If the error persists, replace the saddle-stitcher controller PCA.

• Code: 66.90.49
• Display: 66.90.49
• Description: Booklet Nip Motor Error or Booklet Push Motor Error Finisher - paper-pushing-plate motor (M8). Error occurs when the paper-pushing-plate home-position sensor (PI14 or PI 15) does not turn on when the paper-pushing-plate motor (M8) has been driven for 0.3 seconds. Also occurs when the paper-pushing-plate home-position sensor (PI14 or PI15) does not turn off when the paper-pushing-plate motor (M8) has been driven for 80 ms. Also occurs when the number of pulses detected by the paper-pushing-plate-motor clock sensor (PI14 or PI15) is less than expected standard value
• Remedy: 1. Open the front finishing door, and activate the front-door switch (MSW31) and front-door sensor (PI32) so that the finisher will operate with the front door open. . 2. Turn the engine and finisher power off to clear the error, and then turn the power on. WARNING! Operating the finisher with the front door open exposes moving parts that can cause serious injury. Be very careful operating the finisher with the front door open. 3. Use the control-panel menus to begin a booklet making operation. Observe the paper-pushing plate motor M8 (located in the lower-right front corner of the finisher), associated gears, and the paper-pushing plate for proper motion. NOTE: The motor-mount assembly includes the paper-pushing-plate motor M8. 4. If motor M8 does rotate but the paper-pushing plate does not move or moves erratically, check the drive gears and paper-pushing plate for wear or damage. Replace components as necessary. 5. If motor M8 does rotate and the paper-pushing plate moves properly, the plate movement sensors might have failed. 6. Inspect the paper-pushing-plate home-position sensor PI14, pushing plate leading-edge-position sensor PI15, and paper-pushing-motor clock sensor PI1. 7. Make sure that the sensors are securely fastened to the chassis. Check sensor PI4, sensor PI15, and sensor PI1 for damage. 8. Verify that connectors J6, J9, and J23 on the saddle-stitcher controller PCA are fully seated and not damaged. Check the wiring at the sensors 9. ONLY if the error persists and none of the previous steps correct the problem, replace the saddle-stitcher controller PCA.

• Code: 66.90.50
• Display: 66.90.50
• Description: Booklet-CPU sequence error
• Remedy: 1. Follow the instructions in the online help. 2. Turn the product off, and then on. 3. If the error persists, see the output finishing device service manual for detailed instructions.

• Code: 69.11.YZ
• Display: 69.11.YZ
• Description: There is a duplexer error.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the duplexer.

• Code: 70.00.00
• Display: 70.00.00 Error To continue turn off then on
• Description: The product experienced a DC controller failure.
• Remedy: 1. Turn the product off, and then on. 2. If the error persists, replace the DC controller.