Toshiba e-STUDIO500P manual Main drive service check, Xx Paper Jam user

Main drive service check

Service tip: Excessive gear or main drive assembly noise is usually caused by a defective motor assembly or system board.

Warning: Whenever the gearbox assembly is removed from the machine it must be handled very carefully. Do not allow any of the gears to come in contact with any metal or other hard surface to avoid gear damage. It is also very important not to let any dirt, paper, staples, or other material come intact with the grease in the gearbox assembly.

	FRU	Action
1	Main drive assembly	Remove the controller board and run a Diagnostic Print Test in the
	(excessive noise or	continuous mode. Check the main drive assembly for any excessive
	vibration)	noise or vibration. Determine if the noise is in the main drive, toner
		cartridge, fuser, or main drive gearbox. Look for any loose or worn
		parts in the developer drive assembly, main drive gearbox, or fuser.
		Repair as necessary.
2	Main drive motor assembly	A service error code 936 - Transport Motor may be displayed. Check
	(excessive noise, gears	the voltage at J20-6 on the system board. It measures approximately
		+5 V dc when the motor is not running and goes to 0 V dc when the
	ratcheting and so on)
		motor is running. If incorrect, replace the system board. If this does
		not fix the problem, replace the main drive motor.
3	Main drive motor cable	Check the continuity of the main drive motor cable. If incorrect,
		replace the cable.
4	Motor gear does not turn,	Check the voltages at J20 on the system board.
	no 936 error code or
			Pin				Voltage
	201.xx Paper Jam user
	message displays.				Static		When main drive
							motor is running
			J20-11			+24 V dc
			J20-8		+5 V dc		0 V dc
			J20-7		+5 V dc		0 V dc
			J20-6		+5 V dc		+2.5 V dc
			J20-5		+5 V dc		0 V dc
			J20-4		+5 V dc		+5 V dc
			J20-1		+5 V dc		0 V dc
		If the voltage is incorrect, replace the FRUs in the following order:
			•	Main drive motor assembly
			•	System board

Diagnostic information 2-105