HP Color LaserJet 8500 Service Manual - Page 439
Table 44., Media jam detection continued, Location of jam, Detected when ..
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Table 44. Media jam detection (continued) Location of jam Detected when . . . Top (face-down) output bin delivery delay media jam The media has not reached the top (face-down) output bin delivery sensor (PS11) within the specified time after the fusing delivery sensor (PS1903) detects the media: about 4.0 seconds (normal mode) about 16.0 seconds (overhead transparency mode) about 12.0 seconds (high-gloss mode) Top (face-down) tray delivery stationary jam The media has not passed through the top (face-down) output bin delivery sensor (PS11) after PS11 detects the media within approximately: 2.4 seconds (normal mode/letter-sized media landscape) 9.6 seconds (overhead transparency mode/letter-sized media landscape) 7.2 seconds (high-gloss mode/letter-sized media landscape) 4.2 seconds (normal mode/11-by-17 inch-sized media) 17.0 seconds (overhead transparency mode/11-by-17 inch-sized media) 12.7 seconds (high-gloss mode/11-by-17 inch-sized media) Wrong media size feed jam The controller board detects media size with the registration roller paper sensor (PS1), and it stops the engine if the media size differs more than 15 mm between the specified media size and the actual media size. On the other hand, if the difference is within +7.5 to 15 mm, or -3.7 mm or less, the media is automatically delivered. Door-open jam The sensors listed below detect the media when a cover is opened or closed: registration paper roller sensor (PS1) pick-up unit paper sensor (PS17) separation sensor (PS5) top (face-down) output bin delivery sensor (PS11) fusing delivery sensor (PS1903) Initial residual jam The sensors listed below detect the media the specified time after the power switch is turned ON: separation sensor (PS5) fusing delivery sensor (PS1903) EN Paper path troubleshooting 437