Table 7-5. General Paper Path Troubleshooting Questions (continued) Problem Action Is the customer loading the paper trays correctly? Observe the customer loading the paper. Do not fan the paper. See proper paper handling procedures in the HP LaserJet Printer Family Paper Specifications Guide. Is the customer overfilling the paper trays? Make sure 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? Make sure that the Tray 2 and 3 left-side paper fence is set correctly at both the front and rear of the tray. Make sure that the front fence is locked into the correct position.
For Tray 4, make sure that all adjustments are set correctly: front, back, and side at the top and bottom of the tray. Does the printer need cleaning? Inspect the paper path and paper path rollers. See “Cleaning the Printer and Accessories” on page 82. When was the User Maintenance performed on the printer? From the Configuration Page, determine the number of pages since the last maintenance (see figure 7-12 on page 464). The Printer Maintenance Kit should be installed every 350,000 images. Paper Jams Paper jams occur most often when: G Paper trays are not correctly loaded. Make sure the paper is loaded with the arrow pointing up in Tray 1 and down in Trays 2, 3, 4, and 5.
G The print media does not meet the specifications listed in the HP LaserJet Printer Family Paper Specifications Guide. G The media is in poor condition. G The printer needs cleaning. The printer monitors the timing of four sensors to determine that a paper jam has occurred: PS2, PS1, PS1403, and PS1402. 396 Chapter 7 Troubleshooting C4085-91087