Toshiba e-STUDIO500P Charge roll service check, See System board and inner shield removal on

	FRU	Action
4	System board	Replace the current system board with the original system board.
		See “System board and inner shield removal” on page 4-76.
		If the error remains, go to step 6.
5	Interconnect card assembly	Replace the original interconnect card assembly with a new and not
		previously installed interconnect card assembly. If the problem
		remains, contact the next level of support.
6	System board	Replace the original system board with a new and not previously
		installed system board. If the problem remains, contact the next level
		of support.

Charge roll service check

Service tip: Close and evenly spaced repetitive marks 47.19 mm (1.86 in.) apart, or spots on the page can be caused by a damaged or contaminated dual charge roll.

Service tip: Make sure the right charge roll arm bushing is correctly installed and operates correctly.

To remove the charge roll:

1.Wrap a piece of plain white paper around the charge roll to prevent contamination or damage.

2.Carefully remove the roll by pressing outward and to the right on the charge roll link arm and remove the charge roll from the right side charge roll bearing.

3.Remove the charge roll from the left side charge roll bearing and remove the roll from the printer. Leave the paper wrapped around the charge roll until it is reinstalled.

	FRU	Action
1	Charge roll assembly	Check the charge roll for correct installation, toner buildup, marks,
		cuts, or other signs of contamination or damage. Replace as
		necessary.
2	Left side charge roll link	Check the left side charge roll link assembly for correct assembly
		operation. Check for damage to the arm or bearing assembly.
3	Right side charge roll link	Check the right side charge roll link assembly for correct assembly
	Right charge roll bushing	operation. If incorrect, replace the charge roll link assembly with the
		charge roll link assembly kit. If correct, check the right charge roll link
		assembly bearing for signs of wear or contamination. Excessive
		contamination could cause intermittent charging of the charge roll. If
		incorrect, replace the link assembly. Check for continuity of the right
		link assembly from the bearing to the charge roll high voltage contact
		on the right side frame. If incorrect, replace the link assembly.
		Make sure the charge roll bushing is installed and operating correctly.
		Note: The screw that attaches the charge roll lead to the contact
		must be secure.

Diagnostic information 2-79