• Code: 13.12.12
• Display: 13.12.12
• Description: Finisher delay jam at PI33. The engine signals the finisher that paper is about to enter the finisher from the IPTU. The finisher's upper-feed-path-entry sensor (PI33), which detects paper entering the finisher, does not detect the paper within the expected time period triggering the error.
• Remedy: Open the IPTU and the finisher top door and check the following items: • If media is found in the IPTU but has not reached the finisher, perform the following steps: • Remove and then reinstall the IPTU. Make sure that the connector is fully seated and that the IPTU is securely fastened. • If the error persists, replace the IPTU. • If media is jammed at the exit point of the IPTU (prior to entering the finisher), perform the following steps: • Verify that the finisher is securely fastened to the engine. • Make sure that the finisher and IPTU are correctly aligned. Adjust the finisher castors to obtain a uniform gap between the finisher and the engine. The engine-tofinisher gap must be the same at the bottom and the top so that the finisher is parallel to the engine. With the engine-to-finisher gap correct, make sure that the finisher paper path entry point is aligned with the IPTU exit point. • Check the finisher entry point guides for damage. • Verify that the finisher rollers are turning before the media leaves the IPTU. If the rollers are not turning, test motor M9 by using the finisher component test from the controlpanel display. If the motor does not activate during the test, check the connectors for motor M9 (inlet motor). Make sure that connector J705 is fully seated on the stacker controller PCA. If the error persists, replace motor M9 or the saddle paper-feeder assembly. Only if the error persists and the previous steps fail to correct the problem, replace the stacker controller PCA. • If media is found in the finisher but has not reached sensor PI33, perform the following steps: • Check the upper and lower guides and rollers in the paper path for damage. • Make sure that the media diverter gate (saddle-stitch flapper) is not blocking the paper path. • If media is found in the finisher covering sensor PI33 (the sensor is not detecting the media), perform the following steps: • Check the sensor for obstructions. Verify that the sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body• Make sure that the lower end of the flag is not damaged and is correctly positioned to activate the sensor. • Make sure that the sensor is securely fastened to the chassis. • Carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. • Verify that the wiring at the sensor is not damaged and that the intermediate connector J1007 and connector J708 on the stacker controller PCA are fully seated. Replace the sensor if necessary. • Only if the error persists and the previous steps fail to correct the problem, replace the stacker controller PCA.

• Code: 13.12.13
• Display: 13.12.13
• Description: Finisher stay jam at PI33. Finisher's upper-feed-path-entry sensor (PI33) is remaining activated longer than expected, suggesting that paper has jammed at the sensor.
• Remedy: Control panel diagnostics: none 1. Remove any media in the upper paper path that might be activating sensor PI33. 2. Verify that the sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. 3. Carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. 4. Verify that the wiring at the sensor is not damaged and that the connector J708 on the stacker controller PCA is fully seated.

• Code: 13.12.14
• Display: 13.12.14
• Description: Finisher delay jam at PI34. Upper-paper-path-entry sensor (PI33) has signaled that paper has passed but upperpaper- path exit sensor PI34 does not actuate within the expected time, suggesting that the paper has jammed between PI33 and PI34 in the upper paper path.
• Remedy: Control panel diagnostics: none 1. Remove any media jammed in the upper paper path between sensor PI33 and sensor PI34. 2. Check the paper path between sensor PI33 and sensor PI34 for obstructions that may be preventing the media from reaching PI34. 3. Verify that the PI34 sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. 4. Make sure that sensor PI34 is securely fastened to the chassis and wiring is properly connected to sensor. NOTE: Sensor PI34 is located on the front frame of the finisher, directly over the primary stapler. 5. Verify that the wiring at the sensor is not damaged and that the connector J707 on the stacker controller PCA is fully seated. 6. Only if the error persists and the previous steps fail to correct the problem, replace the stacker controller PCA.

• Code: 13.12.15
• Display: 13.12.15
• Description: Finisher stay jam at PI34 Finisher's upper-paper-path-exit sensor (PI34) remains activated longer than expected suggesting that paper has jammed at the sensor.
• Remedy: Control panel diagnostics: M31 (entrance motor), SL32 (buffer roller solenoid), and SL33 (output roller solenoid) 1. Remove any media in the upper paper path that might be activating sensor PI34. 2. Carefully clean the sensor body, by gently blowing clean air across the sensor to remove dust and debris. 3. Verify that the sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. 4. Lift-swing-guide assembly at the paperexit area to output bins and inspect for jammed paper, obstructions, or damage. 5. Run a diagnostic through the engine control panel and turn on M31 (entrance motor) to observe gear rotations on the upper-rear frame of the finisher. Ensure that the first-delivery rollers and buffer rollers that pass paper to and from PI34 are rotating. 6. Test SL32 (buffer-roller solenoid) and SL33 (output-roller solenoid) using the control panel diagnostics. 7. Check wiring from sensor PI34 to stacker-control board connector J707 for damage. 8. Only if the error persists and the previous steps fail to correct the problem, replace the stacker controller PCA.

• Code: 13.12.16
• Display: 13.12.16
• Description: Finisher jam: door opened during staple/ stacking operation While the machine is printing, upper-door (open/close) sensor (PI31) or front-door (open/close) sensor (PI32) or the front-door (open/close) switch (MSW31) has signaled that one of the doors has been opened, suggesting that there may now be paper found in the upper paper path.
• Remedy: Control panel diagnostics: PI31 (top-door sensor), PI32 (front door sensor) Booklet maker only: check PI3 (Booklet Door 1 Sensor) (booklet-delivery door) 1. Make sure that the doors properly open and close and stay in the fully closed position. If the front door is not closing tightly at the top, it will not activate the door switch. If necessary, adjust the alignment of the front door by opening the door and carefully twisting it. 2. Verify that the sensor-activation arms on the doors are not damaged. 3. Make sure that the front-door sensor PI32 and switch MSW31 and top-door sensor PI31 are not obstructed. 4. Make sure that the arm on front-door switch MSSW31 is not bent or damaged. 5. Make sure that sensor PI32 and switch MSSW31 are securely fastened to the chassis. 6. Test sensor PI31 (upper-door sensor) and sensor PI32 (front-door sensor) by using the finisher component tests from the control-panel display. NOTE: For finishers with a booklet maker, also test sensor PI3 (bookletdoor- 1 sensor).

• Code: 13.12.17
• Display: 13.12.17
• Description: Engine to finisher timing jam: unexpected arrival of paper to finisher Upper-paper-path entry sensor (PI33) has detected paper before a signal from the engine has been received, indicating that paper is being delivered from the IPTU to the finisher.
• Remedy: Control panel diagnostics: none 1. Verify that the latest firmware updates are installed for the engine and finisher. 2. Remove any media in the upper paper path that might be activating sensor PI33. If no media is found at PI33, proceed to step 3. If media is found at PI33, perform the following steps: • Make sure that the power/ communication cable from the IPTU to the finisher is properly connected. • Make sure that the IPTU is properly connected to the engine and that the mounting screws are tight. • 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 groundingframe assembly (the bar with the wheel located between the engine and the finisher) is in the ?gdown?h position with the wheel touching the floor and that the grounding plate is not damaged. NOTE: The groundingframe assembly is in the ?gup?h position when the finisher is shipped. It must be lowered when the finisher is installed. • If the error persists, replace the IPTU. 3. Check for media at the finisher entrance point and at sensor PI33. If no media is found at PI33, perform the following steps: • 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 groundingframe 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 groundingframe assembly is in the up position when the finisher is shipped. It must be lowered when the finisher is installed. • Carefully clean the sensor body by gently blowing clean air across the sensor to remove dust and debris. • Verify that the sensor flag is not damaged, moves freely, and is correctly aligned with the sensor body. • Verify that the wiring at the sensor is not damaged and that the connector J708 on the stacker controller PCA is fully seated. 4. Only if the error persists and the previous steps fail to correct the problem, replace the stacker controller PCA.

• Code: 13.12.21
• Display: 13.12.21
• Description: Finisher upper stapler (stapler 1) staple jam. When the staple motor (M41) is rotated forward, the staple home-position sensor (PI5) does not turn back on after the prescribed time has elapsed after it goes off, and the staple home-position sensor (PI50) turns on within the prescribed time after the staple motor (M41) is rotated backwards.
• Remedy: Control panel diagnostics: none 1. Check the stapler unit for jammed staples. 2. Check the stapler unit for loose staples and paper dust. 3. Inspect the stapler unit for damage. 4. Remove the stapler cartridge and make sure HP-approved staples are being used. 5. Verify that the wiring at the stapler unit and the connector are not damaged. 6. Install new staple cartridge and retest. 7. If the error persists, replace the stapler unit.

• Code: 13.12.41
• Display: 13.12.41
• Description: Finisher: Paper detected in the bookletmaking portion of the finisher at engine power on. Occurs when paper is detected by one of the sensors on the paper-sensor board (PI18, PI19, PI20), vertical-path-paper sensor (PI17), booklet-delivery sensor (PI11), paperpositioning- plate-paper sensor (PI8), or booklet-making paper-entry sensor (PI22) when engine is turned on.
• Remedy: Control panel diagnostics: none 1. Remove media from the booklet-maker paper path. 2. Verify that the sensor flags are not damaged, move freely, and are correctly aligned with the sensor bodies. 3. Carefully clean each sensor body by gently blowing clean air across each sensor to remove dust and debris. 4. Make sure that connectors J6, J9, J10, J13, and J21 are fully seated on the saddle-stitcher controller PCA. 5. Only if the error persists and the previous steps fail to correct the problem, replace the saddle-stitcher controller PCA.