HP 2500 Service Manual - Page 68
Pickup and feed system, PS711, DCM701, PM702
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Pickup and feed system The pickup and feed system consists of several types of feed rollers and sensors. The dc controller drives the paper and feed system by controlling two motors, two clutches, and the solenoid. Two photo-interrupters (PS1 and PS711) detect media as it passes. If media does not reach or pass each sensor within the specified time period, the dc controller determines that a jam has occurred and alerts the video controller circuit. The following components are identified in figure 15: PS1 fusing-delivery paper sensor PS711 registration paper sensor PS718 tray 1 (multipurpose tray) paper sensor DCM701 main motor PM702 fuser motor SL92 tray 1 pickup solenoid CL1 registration clutch CL2 roller-engaging clutch Figure 15. Pickup and feed system 66 Theory of operation C9706-90926