HP CP6015dn Service Manual - Page 626

Electrical circuitry The stacker controller PCA controls the stacker operation sequence. A 16-bit microprocessor (CPU) is installed on the stacker controller PCA to control the stacker operation sequence and CAN communication with the video controller PCA. The stacker controller PCA drives solenoids, motors, and so forth in response to the commands received from the video controller through the CAN communication line. In addition, the stacker controller PCA reports information about various sensors and switches to the video controller through the CAN communication line. Major functions of the IC chips installed on the stacker controller PCA are as follows: ● IC13 (CPU): Controls the operation sequence ● IC10 (EEP-ROM): Backs up adjustment values ● IC6 (Communication IC): Communicates with the host machine ● IC8 (Regulator IC): Generates 5 V ● IC14 (Regulator IC): Generates 3.3 V Figure 8-5 Electrical circuitry of the stapler/stacker DC controller PCB Stacker controller PCB Formatter IC13 CPU IC10 EP-ROM Motor Solenoid Clutch Switch IC6 Communication IC Sensor IC8 Regulator IC IC14 Regulator IC Feed drive system Based on commands from the product, the stapler/stacker delivers jobs to the output bins in the appropriate mode: simple stacking, job offset, and stapling. Figure 8-6 Electrical circuitry of the stapler/stacker Method of delivery Normal delivery Simple stacking Stack job offset Staple Front 1-point stapling Rear 1-point stapling 2-point stapling 584 Chapter 8 Output accessories and intermediate paper-transfer unit (IPTU) ENWW