HP Color LaserJet 9500 Service Manual - Page 80
Table 35., Component test values, Value, Explanation, MP PAPER FEED MOTOR
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Table 35. Component test values Value Explanation TRANSFER MOTORS Use this item to check the four OPC drive motors and the ITB motor without any other printer process operating. BELT ONLY Use this item to check the ITB motor, the ITB motor drive train, and the ITB rotation. IMAGE DRUM MOTORS Use this item to make sure that the drum motor(s) are turning. This item is also helpful to check the drum motors and drive assemblies when the back of the printer is removed, and to isolate problems in the image drums or the image drum drive assemblies. CARTRIDGE MOTORS Use this item to make sure that the cartridge motor(s) are turning. This item is also helpful to check the cartridge motors and drive assemblies when the back of the printer is removed, and to isolate problems in the print cartridges or the print cartridge drive assemblies. DEVELOPER MOTORS Use this item to make sure that the developer motor(s) are turning. This item is also helpful to check the developer motors and drive assemblies when the back of the printer is removed, and to isolate problems in the image drums or the image drum developer drive assemblies. YMCK LASERS Use this item to make sure that the four laser scanner assemblies are functioning correctly. FUSER MOTOR Use this item to test the fuser motor, or any mechanisms that are driven by the fuser motor. MP PAPER FEED DRIVE Use this item to test the tray 1 feed motor. UPPER CASSETTE FEED DRIVE Use this item to check the pick rollers for tray 2. Note M23 rotates clockwise to drive the tray 2 mechanism. LOWER CASSETTE FEED DRIVE Use this item to check the pick rollers for tray 3. Note M23 rotates counter clockwise to drive the tray 3 mechanism. PREREGISTRATION Use this item to test the registration motor (M11) and the associated clutch (CL1) Note This clutch can also be tested with the MP PAPER FEED MOTOR test. REGISTRATION Use this item to test the registration motor (M11) and the associated clutch (CL2 is ON for this test, but OFF in the MP PAPER FEED MOTOR test). FACE UP SOLENOID Use this item to test the face-up solenoid (SL2) for correct functionality. REPEAT Use this item to repeat a test continuously. 78 3 Product configuration ENWW