HP 3380 Service Manual - Page 104
Solenoid, photosensors, and switches, Wrapping jam, Delivery-stationary jam, Residual paper jam
View all HP 3380 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 104 highlights
● Wrapping jam-The paper-delivery sensor (PS921) does not detect the trailing edge of the media within 0.1 second after the paper-top sensor (PS911) detects the leading edge and 1 second has passed since the paper-delivery sensor (PS921) detected the leading edge. ● Delivery-stationary jam-The paper-delivery sensor (PS921) does not detect the leading edge of media within 1.6 seconds after the paper-top sensor (PS911) detects the trailing edge. ● Residual paper jam-The paper-top sensor (PS911) or the paper-delivery sensor (PS921) detect media during the initial rotation period. ● Door open jam-The paper-top sensor (PS911) or the paper-delivery sensor (PS921) detect media while the print-cartridge door is open. Solenoid, photosensors, and switches The following figure shows the locations of the solenoid, photosensors, and switches. Figure 4-11. Solenoid, photosensors, and switches 1 Paper-delivery sensor (PS921) senses when paper has successfully moved out of the fusing area. 2 Power switch. 3 Paper-top sensor (PS911) detects the leading and trailing edges of the paper. It synchronizes the photosensitive drum and the top of the paper. 4 Engine-test switch (SW201), see Engine test for an explanation of the switch. 5 Door-open switch (SW301) detects whether or not the print-cartridge door is closed and the print cartridge is installed properly. Printing cannot continue until the print-cartridge door is closed and the print cartridge is in its correct position. 6 Solenoid (SL1) activates the pickup roller. 7 Paper-detection sensor (PS931) senses when paper is in the media input tray or the priority input tray. 88 Chapter 4 Operational overview ENWW