Table 6-5. General Paper Jam Troubleshooting Questions Locating and Correcting Jams See the “Paper Pick and Feed System” (page 87) for an account of the operation of the paper feed system. After reading that section, use the diagrams below locate and troubleshoot the possible causes of the paper jam. • “Printer Paper Path, Sensors, and Signals” (page 142) • “Optional Tray 3 Paper Path, Sensors, and Signal” (page 143) • “General Printer Component Locations” (page 144) The process of correcting paper jams may be simplified by categorizing jams by frequency, location, and type of jam. See “Paper Jams” (page 107).
106 Chapter 6 Troubleshooting C4170-90959 Problem Action What is the frequency of the paper jams (e.g. continuous, one jam per 100 pages, one jam per 1000 pages, etc.)? Verify with the customer. See “Troubleshooting with Control Panel Messages” (page 94) and “Status Log Messages” (page 109) and evaluate the Status Log. Perform a Continuous Self Test (See Chapter 4) Do paper jams occur with a specific type of media? Try using known good media. Refer to “Media Troubleshooting” (page 129). Where does the leading edge of the first sheet of paper in the printer’s paper path stop when a jam occurs? Are any sheets of paper damaged or torn? Attempt to duplicate the problem.
Inspect the paper path and all paper path mechanical assemblies located before the leading paper jam. Use the “Continuous Self-Test” (page 47) to aid in locating paper jams. Is the customer loading the paper trays correctly? Observe the customer loading paper. Break the ream, do not fan the paper. Refer to proper paper handling procedures in “Media Troubleshooting” (page 129). Is the customer overfilling the paper trays? Ensure that the paper is NOT over the maximum fill marks in the paper trays. Observe the customer loading paper in the trays. Are the paper tray guides set correctly? Ensure all front and rear Tray 2 and optional Tray 3 guides are set correctly.
Does the printer need cleaning? Inspect the paper path and paper path rollers. Refer to cleaning procedures in “Cleaning the Printer” (page 59).