HP color laserjet 2550 series Instruction De Maintenance
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.
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.
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
:
●
PS1 fusing-delivery paper sensor
●
PS711 registration paper sensor
●
PS718 tray 1 (multipurpose tray) paper sensor
●
PS720 fuser wrap-jam sensor
●
DCM701 main motor
●
PM702 fuser motor
●
SL92 tray 1 pickup solenoid
ENWW
Pickup and feed system
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