HP 3015 Service Manual - Page 97
Printer engine control system, Printer laser/scanner unit, Paper motion monitoring and control.
View all HP 3015 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 97 highlights
Note In other HP LaserJet products, the ECU and power functions are combined onto one PCA known as the controller PCA or the DC controller PCA. In the HP LaserJet 3015, 3020, and 3030, the control functions are primarily relegated to the ECU PCA and the power functions to the power-supply assembly PCA. The ECU controls the following systems and functions: ● Printer engine control ● paper-motion monitoring and control (printing) ● motor ● Printer laser/scanner unit The power-supply assembly provides the following functions to the power system: ● ac power distribution ● dc power distribution ● overcurrent/overvoltage protection ● high-voltage power distribution Printer engine control system Paper motion monitoring and control. The ECU controls paper motion in the printer by continuously monitoring the two paper sensors and coordinating the timing with the other print processes. Motor. The ECU controls the motor. The motor drives all of the printer paper movement. ENWW Printer functions (all models) 79