Toshiba e-STUDIO500P High-capacity output stacker service check, Excessive noise or vibration

Tray x Paper Low displays when the high-capacity feeder input tray is full or has adequate paper in the tray

	FRU	Action
1	Paper low switch	Run the sensor diagnostics for tray x (x=the number that represents
	Paper low switch cable	the high-capacity input tray).
		If the test fails, check the voltage at J3-1 (gray). The voltage
	High-capacity feeder option
	control board	measures approximately +24 V dc. If incorrect, disconnect the paper
		low switch cable from J3 and measure the voltage again on J3-1. If
		incorrect, replace the high-capacity feeder option control board. If
		correct, check the cable for a short between pins 1 and 2 on the
		cable. If incorrect, replace the cable. If correct, check the switch for a
		bent or deformed actuator lever or defective switch. If incorrect,
		replace the switch.
Excessive noise or vibration

	FRU	Action
1	DC motor assembly	Make sure all the motor plate mounting screws are tight.
2	Idler pulley	Make sure the idler pulley is not binding on the pulley shaft. Check
	DC motor assembly	the pulley for wear. Check the idler pulley shaft on the motor
		mounting plate for damage or contamination.
3	Drive pulley	Check the drive pulley for wear, binds or damage to the pulley or
		pulley shaft. Make sure the pulley turns freely on the pulley shaft.
4	Motor drive belt	Check the DC motor drive belt for damage. Make sure the belt is
	tray drive belt	tracking correctly on the drive pulley, idler pulley, and motor pulley.
		Check the tray drive belt for damage. Make sure the belt is tracking
		correctly on the lower section of the drive pulley and lead screw
		pulleys.

High-capacity output stacker service check

Service tip: The majority of the mechanical components can be observed during operation by removing the left, right, and front covers. The high-capacity output stacker option functions without the covers installed.

Determine which paper path stacker assembly is not functioning properly.

Make sure the option(s) are installed correctly and the machine is configured correctly before attempting to service the high-capacity output stacker option.

See “High-capacity output stacker board” on page 5-8to identify the correct jumper locations at J6 for the upper and lower units.

Problems with excessive static electricity buildup

	FRU	Action
1	Front Cover Assembly	Check the front cover assembly to make sure the ESD brush ground
		lead is firmly attached to the high-capacity option. Also check to
		make sure the ESD brush is not loose or damaged.

2-100Service Manual