HP LaserJet 4250 Service Manual - Page 419
Table 7-42, Delivery area jam troubleshooting, Printer-connection-area jam troubleshooting continued
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Table 7-41 Printer-connection-area jam troubleshooting (continued) Possible cause Recommended action(s) The inlet-sensor (PS1101) arm cannot move freely or is damaged. Inspect the inlet sensor (PS1101). See Stacker and stapler/ stacker switches and sensors. Verify that the sensor arm can move freely. If necessary, replace the stacker or stapler/ stacker. The inlet-sensor (PS1101) spring is defective or damaged. Reseat the inlet-sensor (PS1101) spring. See Stacker and stapler/stacker switches and sensors. If necessary, replace the stacker or stapler/stacker. The stacker or stapler/stacker PCA is defective. Replace the stacker or stapler/stacker. The leading edge of the media has not emerged from the top of the printer. The deflector cannot move freely or is defective. Inspect the deflector. Verify that it can move freely and is not damaged. If necessary, replace the stacker or stapler/stacker. The deflector solenoid (SL1101) is damaged. If necessary, replace the deflector mechanism in the printer. The stacker or stapler/stacker PCA is defective. Replace the stacker or stapler/stacker. Table 7-42 Delivery area jam troubleshooting Possible cause Recommended action(s) The leading edge of the media has passed the stapler or stapler/stacker delivery rollers. The staples are deformed (stapler/stacker only). Replace the stapler unit. See Maintaining the stapler unit. The paper-delivery-sensor (PS1102) arm cannot move freely or is damaged. Inspect the paper-delivery sensor (PS1102). See Stacker and stapler/stacker switches and sensors. Verify that the sensor arm can move freely. If necessary, replace the stacker or stapler/stacker. The paper-delivery-sensor (PS1102) spring is defective or damaged. The paper-delivery sensor (PS1102) is defective. Reseat the paper-delivery sensor (PS1102) spring. See Stacker and stapler/stacker switches and sensors. If necessary, replace the stacker or stapler/stacker. Replace the stacker or stapler/stacker. Troubleshooting the stacker and the stapler/stacker 405