Information

This documentation is not to provide a solution to a specific 13.XX.YY Paper Jam error message. Its purpose is to guide through a precise troubleshooting method which will guide to the root cause of the jam. For more information, please review the 'Theory of Operation' which is located in the service manual.

It is strongly recommended to search in SAW, Tech Web and the service manual for the specific numerical error message and if it is not found, then use this document.

Photosensors are used to detect paper in the paper path. It consists of an infrared LED on one side and a light detector on the other. A "flag" blocks the LED light path between the emitter and the LED detector. When paper moves along the paper path, the flag is "tripped", the light beam is sensed by the LED, the photosensor then send a signal to the DC controller that the paper has either passed this location successfully or stopped (causing a jam).

What is a paper jam?

A paper jam is basically the result of a Photosensor not getting tripped within a specified timeframe.

DC controllers role:

The DC controller is in charge of checking and receiving the status of the Photosensor and relaying the information to the formatter. Under the “Cause of Paper Jams�?, the 7 most causes of paper jams will be seen.

Cause of paper jams:

Paper jams may occur due to 7 reasons:

1. A Photosensor did not get tripped within a specified timeframe.
2. A Photosensor is tripped when it should not be.
3. A damaged Photosensor.
4. A damaged cable which goes from the DC controller to the Photosensor.
5. DOA DC Controller.
6. When there is media inside the product.
7. Media not being within the specifications.

Details

Troubleshooting:

1. What is the numerical error message?
2. Is the leading edge of the page damaged? Describe its status of the leading edge.
3. Does the issue happen when printing simplex, duplex or both?
4. Does the media always stop in the same location? Where is the location?
5. Are the paper jams intermittent?
6. When did the jams begin to happen?
7. Have there been any changes with the MFP or its environment?
8. Check the entire paper path and verify there is no media in the paper path.
9. Try to print a configuration page, menu map, event Log, usage page, and supply status page using Tray 1. If the page jams, try to get the event log via the EWS.
   • HP LaserJet 4345 Multifunction Printer (MPF) Series:
     a. Configuration Page: "Menu", "Information", "Print Configuration Page".
     b. Menu Map: "Menu", "Information", "Print Menu Map".
     c. Event Log: "Menu", "Diagnostics", "Print Event Log".
     d. Usage Page: "Menu", "Information", "Print Usage Page".
     e. Supply Status: "Menu", "Information", "Print Supplies Status".
   • HP LaserJet M4345 Multifunction Printer Series:
     a. Configuration Page: "Administration", "Information", "Configuration/Status Pages", "Configuration Page=Print".
     b. Menu Map: "Administration", "Information", "Configuration/Status Pages", "Administrative Menu Map".
     c. Event Log: "Administration", "Troubleshooting", "Event Log=Print".
     d. Usage Page: "Administration", "Information", "Configuration/Status Pages", "Supply Usage Page".
     e. Supply Status: "Administration", "Information", "Configuration/Status Pages", "Supply Status Page".
10. Perform a paper path sensor. After selecting this option click ignore and print a configuration page. Gather the results.

    • LaserJet 4345 MFP:
      Select: "Menu", "Diagnostics", "Paper Path Sensors".
    • LaserJet M4345 MFP:
      Select: "Administration", "Troubleshooting", "Paper Path Sensors".
11. Verify the media is within specifications.
12. Try with a new ream of paper.
13. Verify under paper handling that all trays are set to the exact type and size of paper they have installed.
14. Perform a paper path test from all the trays. Set the number of copies to 10. Verify the jam location is always in the same location.

    • LaserJet 4345 MFP:
      Select: "Menu", "Diagnostics", "Paper Test".
    • LaserJet M4345 MFP:
      Select: "Administration", "Troubleshooting", "Paper Pat Test".
15. Perform a manual sensor test with and without the jam. Verify the sensors are functioning properly.
    Sensor status screenshot:
    A B C0 D0 E0 F0 G0 H0 J0 K0 L1 M0 N0 P0 Q0 R0 S5 T0 U1 V1 W5 X Y Z a b c d e f0
    Figure 3: Sensor Listing

    

Paper Sensor locations

• Sensor C - Tray 3 paper feed sensor
  To view this sensor open tray 2 right access door and the sensor is right in the middle.
  Figure 4: Tray 3 paper feed sensor

  
• Sensor D - PS106 paper width sensor
  To view this sensor, Open the top cover, remove the toner cartridge, lift the lever on the right hand side which has a green sticker up and the sensor is on the right hand side.
  Figure 5: PS106 paper width sensor

  
• Sensor E - PS102 Pre-feed sensor
  This sensor cannot be viewed without removing covers. To test this sensor, stick a piece of paper through Tray 2 right access door.
  Figure 6: PS102 Pre-feed sensor

  
• Sensor F - PS103 Top of the page sensor
  To view this sensor Open the Top Cover, remove the Toner cartridge, lift the lever on the right hand side which has a green sticker up and the sensor is in the middle.
  Figure 7: PS103 Top of the page sensor

  
• Sensor G - Duplexer Sensor
  Figure 8: Duplexer Sensor

  
• Sensor H - PS11 Reverse-Unit paper sensor
  To view this sensor, open the Top Cover. This sensor is located at the bottom of the reversing assembly.
  Figure 9: PS11 Reverse-Unit paper sensor

  
• Sensor J - PS108 Fuser Delivery Sensor
  This sensor is inside the fuser assembly.
  Figure 10: PS108 Fuser Delivery Sensor

  
• Sensor K - PS109 Delivery Paper Sensor
  This sensor is located right behind sensor J.
  Figure 11: PS109 Delivery Paper Sensor

  
• Sensor L - PS104 Delivery Sensor
  Figure 12: PS104 Delivery Sensor

  
• Sensor M - PS105 Tray 1 paper present sensor
  This sensor cannot be viewed. To activate it, load Tray 1 with Plain Letter Paper.
  Figure 13: PS105 Tray 1 paper present sensor

  
• Sensor N - SW103 Standard Output bin detection switch
  Figure 14: SW103 Standard Output bin detection switch

  
• Sensor P - SW105: jam-access-cover switch
  To view this switch open the right access door.
  Figure 15: SW105: jam-access-cover switch

  
• Sensor Q - PS101 Tray 2 paper out sensor
  Figure 16: PS101 Tray 2 paper out sensor

  
• Sensor R - PS107 Tray 2 Paper Stack Surface sensor
  Figure 17: PS107 Tray 2 Paper Stack Surface sensor

  
• Sensor S - SW102 Tray 2 paper size switches
  Figure 18: SW102 Tray 2 paper size switches

  
• Sensor T - Tray 3 Jam Access Cover Switch
  To view this switch open Tray 3 Right Access Door
  Figure 19: Tray 3 Jam Access Cover Switch

  
• Sensor U - Tray 3 paper out sensor
  Figure 20: Tray 3 paper out sensor

  
• Sensor V - Tray 3 Paper-stack surface sensor
  Figure 21: Tray 3 Paper-stack surface sensor

  
• Sensor W - Tray 3 paper-size switches
  Figure 22: Tray 3 paper-size switches

  
• Sensor f - SW101: top-cover switch
  Figure 23: SW101: top-cover switch