Toshiba e-STUDIO500P Upper front cover removal, On page 4-11 or Upper front, Cover removal on

Service error codes (9xx.xx) (continued)

Error	Sub	Display text	Description	Action
code	codes
953	.00			Replace the operator panel
				board or upper front cover. See
				“Upper front cover removal”
				on page 4-11 or “Upper front
				cover removal” on page 4-11.
				Warning: When replacing any
				one of the following
				components:
				•	Operator panel assembly
					(or upper front cover)
				•	System board assembly
				•	Interconnect card assembly
				Only replace one component at
				a time. Replace the required
				component and perform a POR
				before replacing a second
				component listed above. If this
				procedure is not followed, the
				printer will be rendered
				inoperable. Never replace two
				or more of the components
				listed above without a POR
				after installing each one or the
				printer will be rendered
				inoperable.
				Warning: Never install and
				remove components listed
				above as a method of
				troubleshooting components.
				Once a component has been
				installed in a printer, it can not
				be used in another printer. It
				must be returned to the
				manufacturer.

2-28Service Manual