• Code: 66.12.45
• Display: 66.12.45
• Description: Finisher - paper-pushing-plate motor (M8) Error occurs when the paper-pushing-plate home-position sensor (PI14) 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) does not turn off when the paper-pushing-plate motor (M8) has been driven for 80 ms. Also occurs when the paper-pushing-plate leading-edge-position sensor (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 (PI1) is less than expected standard value. Also occurs when the paper-pushing-plate leading-edge-position sensor (PI15) does not turn on when the paper-pushing-plate motor (M8) has been driven for 0.3 seconds.
• Remedy: Control-panel diagnostics: none 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. 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. 2. 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. • If motor M8 does not rotate, replace the motor-mount assembly. NOTE: The motor-mount assembly includes the paperpushing- 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 properly, the plate movement sensors might have failed. • Inspect the paper-pushingplate home-position sensor PI14, pushing-plate leadingedge- position sensor PI15, and paper-pushing-motor clock sensor PI1. Make sure that the sensors are securely fastened to the chassis. Check sensor PI4, sensor PI15, and sensor PI1 for damage. • Verify that connectors J6, J9, and J23 on the saddlestitcher controller PCA are fully seated and not damaged. Check the wiring at the sensors. • Only if the error persists and none of the previous steps correct the problem, replace the saddle-stitcher controller PCA.

• Code: 66.12.46
• Display: 66.12.46
• Description: Finisher - Communication Lost with Stitcher Controller PCA Error occurs when communication between the stacker-controller board and the saddlestitcher- controller board has been lost or interrupted.
• Remedy: Control-panel diagnostics: none 1. Make sure that the finisher is properly grounded. • Ensure that the finisher is latched and locked to the engine by tightening the thumbscrew inside the front door. • Ensure that the grounding-frame assembly (the bar with the wheel located between the engine and the finisher) is in the down position with the wheel touching the floor and that the grounding plate is not damaged. NOTE: The grounding-frame assembly is in the up position when the finisher is shipped. It must be lowered when the finisher is installed. 2. Verify that connector J730 on the stacker controller PCA and the wiring between connector J22 on the saddlestitcher controller PCA are fully seated and not damaged. 3. Replace the saddle-stitcher controller PCA. 4. Only if the error persists and none of the previous steps correct the problem, replace the stacker controller PCA.

• Code: 66.12.47
• Display: 66.12.47
• Description: Finisher error - micro switches - doors There are three switches in the bookletmaker finisher: SW1 (saddle-guide switch also known as the inlet-door switch), SW3 the booklet-ejection-door switch, and MS31 the front-door switch. The stapler/stacker finisher only has one switch, MS31 for the front door of the finisher. All three switches detect if the associated door or guide plate is open or closed. Each of the switches also have a sensor (SW1/PI9, SW3/PI3, and MS31/PI32) that acts as a backup and detects the same information as the switches. The error occurs when all the doors and guides are closed and there is a mismatch in readings between the sensors and the switches. For example, the front finisher door is closed, PI32 senses the door is closed and MS31 senses the door is still open. Associated finisher door and guide switches and sensors are as follows: • Saddle-guide switch SW1 and saddleguide sensor PI9 • Booklet-ejection-door switch SW3 and booklet-ejection-door sensor PI3 • Front-door switch MS31 and front-door sensor PI32
• Remedy: Control-panel diagnostics: PI32 (front-door-1 sensor), PI3 (booklet door-1 sensor, also known as booklet-delivery-door sensor), PI9 (front-door-2 sensor, also known as the saddle-guide-door sensor or inlet-door sensor), SW3 (booklet-door 2) 1. Using the control-panel diagnostics, try to isolate which door or guide switch and sensor is causing the error. 2. Make sure that the sensors are securely fastened to the chassis. 3. Check the switches and sensors for damage and clean the sensors by gently blowing clean air into the sensor to remove dust and debris. 4. Check the wiring at the switches and sensors. 5. Check the tabs that activate the switches and sensors on the doors and guides for damage. Make sure that the tabs are aligned with the switches and sensors. Replace the doors and guides as necessary. 6. Verify that the following connectors are fully seated and not damaged: • Stacker controller PCA • J719 (MS31) • J707 (PI32) • Saddle-stitcher controller PCA • J4 (SW1) • J10 (PI9) • J4 (SW3) • J11 (PI3) 7. Only if the error persists and none of the previous steps correct the problem, replace the PCA that is associated with the failed switch/sensor (stacker controller PCA or saddle-stitcher controller PCA).

• Code: 66.12.51
• Display: 66.12.51
• Description: Finisher error- rear-booklet-stapler motor (M6) The booklet-maker stitch staplers do not move to different locations in relation to the paper like the main stapler. The only movement is through the movement of the rotary cam located on the stapler unit itself, during the actual stapling of the booklet. The stitch-home-position switch (SW5) is part of the rear-stitch stapler unit and senses the stapler opening and closing during stapling by the motion of the rotary drive cam. Like SW5, the stitch motor (M6) is also part of the overall-stitch stapler unit and replacement requires the replacement of saddle-stapler assembly. Error occurs when the front booklet-makerstapler stitching-home-position sensor (SW5) does not turn on when the stitch motor (rear) (M6) has been driven forward for 0.5 seconds. Also occurs when the front booklet-makerstapler stitching-home-position sensor (SW5) does not turn off when the stitch motor (rear) (M6) has been driven forward for 0.5 seconds.
• Remedy: Control-panel diagnostics: none 1. Check the rear-stitch stapler for jammed staples, and then perform the following steps: • Clear jammed staples, and then check the staple unit for damage. Retest the stapler. • If the error continues, check the following items: Make sure that HP-approved staples are used. Replace the staple cartridge with one containing HPapproved staples. If the error continues, replace the saddle-stapler assembly. • If the error persists, but no damage is found, proceed to the next step. 2. If the error persists and no jammed staples are found, perform the following steps: • Verify that connector J8 on the saddle-stitcher controller PCA is fully seated and not damaged. Check the wiring at the rearsaddle- stitch stapler and the saddle-stapler assembly for damage and proper seating. Also inspect the connector that the saddle-stitch-stapler assembly engages inside finisher, for damage and foreign material in the connector as well as for proper seating with the saddle-stitchstapler assembly. • Only if the error persists and none of the previous steps correct the problem, replace the saddlestitcher controller PCA.

• Code: 66.12.52
• Display: 66.12.52
• Description: Finisher error - front booklet-stapler motor (M7) The booklet-maker stitch staplers do not move to different locations in relation to the paper like the main stapler. The only movement is through the movement of the rotary cam located on the stapler unit itself, during the actual stapling of the booklet. The stitch-home-position switch (SW7) is part of the front-stitch stapler unit and senses the stapler opening and closing during stapling by the motion of the rotary drive cam. Like SW7, the stitch motor (M7) is also part of the overall-stitch stapler unit and replacement requires the replacement of saddle-stapler assembly. Error occurs when the front booklet-maker stapler-stitching home-position sensor (SW7) does not turn ON when the stitch motor (Front)(M7) has been driven forward for 0.5 seconds. Also occurs when the front booklet-maker stapler-stitching home-position sensor (SW7) does not turn off when the stitch motor (front) (M7) has been driven forward for 0.5 seconds.
• Remedy: Control-panel diagnostics: none 1. Check the front-stitch stapler for jammed staples, and then perform the following steps: • Clear jammed staples, and then check the staple unit for damage. Retest the stapler. • If the error continues, check the following items: Make sure that HP-approved staples are used. Replace the staple cartridge with one containing HPapproved staples. If the error continues, replace the saddle-stapler assembly. • If the error persists, but no damage is found, proceed to the next step. 2. If the error persists and no jammed staples are found, perform the following steps: • Verify that connector J8 on the saddle-stitcher controller PCA is fully seated and not damaged. Check the wiring at the rearsaddle- stitch stapler and the saddle-stapler assembly for damage and proper seating. Also inspect the connector that the saddle-stitch-stapler assembly engages inside finisher, for damage and foreign material in the connector as well as for proper seating with the saddle-stitchstapler assembly. • Only if the error persists and none of the previous steps correct the problem, replace the saddlestitcher controller PCA.

• Code: 66.XY.ZZ
• Display: 66.XY.ZZ Output device failure
• Description: An error occurred in an external paperhandling accessory.
• Remedy: 1. Turn the product power off. 2. Check that the accessory is properly seated on and connected to the product, without any gaps between the product and the accessory. If the accessory uses cables, disconnect and reconnect them. 3. Verify that there is no packaging material in or around the output device. 4. Turn the product power on.

• Code: 68.X
• Display: 68.X Storage error settings changed
• Description: At least one of the settings saved in the nonvolatile storage device is invalid and was reset to its factory default. Printing can continue, but there may be some unexpected behavior because an error occurred in permanent storage. • 68.0: The onboard NVRAM failed. • 68.1: The removable disk (flash or hard) failed.
• Remedy: Touch OK to clear the message.

• Code: 69.X
• Display: 69.X Error
• Description: A duplex error occurred.
• Remedy: Turn the product off and then on. This problem affects printing, but some scan functions might still be available. Touch Hide to remove this message and use other features.