HP Color LaserJet Enterprise CP5525 Service Manual - Page 341
Additional component tests, Table 3-23
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Table 3-23 Component tests (1 of 2) (continued) Component test Component tested Tray Pickup Solenoid SL2 (Tray 1 pickup solenoid) SL1 (Tray 2 pickup solenoid) SL1 (Tray 3 pickup solenoid) SL1 (Tray 4 pickup solenoid) SL82 (Tray 5 pickup solenoid) SL92 (Tray 6 pickup solenoid) Switchback Flapper Solenoid SL3 (duplex reverse solenoid) Laser Scanner Motor M10 (laser/scanner motor) Comments Drives the Tray 1 pickup solenoid SL2, the Tray 2 cassette pickup solenoid SL1, the 500 sheet feeder pickup solenoid SL1, and each of the 3x500 paper deck cassette solenoids, cassette 1 SL1, cassette 2 SL82, and cassette 3 SL92, individually for 5 seconds. Drives the duplex reverse solenoid for 10 seconds. Drives the laser/scanner motor at a specified speed for 10 seconds. Additional component tests The following tests are not supported in the firmware. These component tests are accomplished by manipulating or observing the product during operation or when the power is turned on. Table 3-24 Component tests (2 of 2) Component test Component tested Paper Deck Cassette Lifter Motor M9 (Tray 2 lifter drive assembly) M2 (Tray 3 lifter drive assembly) M2 (Tray 4 lifter drive assembly) M82 (Tray 5 lifter drive assembly) M92 (Tray 6 lifter drive assembly) Power Supply Fan FM1 Comments Open and then close a paper tray. Listen at the back side of the product for the sound of the lift motor for that tray. If the lift motor does not make a sound and the paper surface sensor for that tray passes a sensor test (see Tray/Bin manual sensor test on page 300), replace the lifter drive assembly. Turn the product power off, and then on. Listen at the left-front-lower corner area of the print engine for fan noise while the product initializes. Full/half speed intake fan Cools the following areas: ● low-voltage power supply area ● face-down bin ● delivery bin ● laser scanner area ENWW Tools for troubleshooting 317
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