HP 3500 Service Manual - Page 465
Location of solenoids and clutches
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Figure 7-16. Location of solenoids and clutches SL1 Tray 1 pick-up solenoid SL2 Tray 2 pick-up solenoid (pick-up/feed assembly) SL4 Secondary transfer roller engaging solenoid SL5 Duplex feed solenoid CL1 Registration clutch CL2 K development clutch (image drive unit) CL3 Developing engaging clutch (developing engaging drive unit) The following 18 tests are available in the component test menu: 1. TRANSFER MOTORS Drives the drum motor (M3) and developing motor (M4) for 10 seconds which rotates the ITB belt, CMYK print cartridge OPC drums, and CMY developers. 2. DRUM AND DRUM MOTOR Drives the drum motor (M3) for 10 seconds which rotates the ITB belt and the CMYK print cartridge OPC drums. 3. BLACK LASER SCANNER Drives the scanner motor (cyan/black) for 10 seconds. 4. CYAN LASER SCANNER Drives the scanner motor (cyan/black) for 10 seconds. 5. MAGENTA LASER SCANNER Drives the scanner motor (magenta/yellow) for 10 seconds. 6. YELLOW LASER SCANNER Drives the scanner motor (magenta/yellow) for 10 seconds. 7. DEVELOPER MOTORS Drives the developer motor (M4) which rotates the C,M,Y print cartridge developers. ENWW Diagnostics from the Control Panel 441
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