Repair Analysis Procedures (Raps); Repair / Adjustment Procedures - Xerox 8825 Service Manual

Repair Analysis Procedures (RAPs)

A RAP is either a table of faults and possible solutions, or a series of steps designed to lead
you to the cause of a problem. In each step, you will perform an action or observe an occur-
rence. For fault tree RAPS, at each step, a statement is made that has a Yes (Y) or No (N)
answer.
If the answer is NO, perform the action following the NO. If the answer is YES, proceed to the
next step.
When several items are listed, perform them in the order listed.
Proceed through the steps only until the observed problem is isolated and solved. Then evalu-
ate the unit for proper performance. If a further defect is observed, go to the appropriate RAP
and perform the steps it contains until the additional fault is located and repaired.
8825/8830 Printer

Repair / Adjustment Procedures

The repair procedures provide detailed steps on how to remove and replace components. The
adjustment procedures provide detailed steps on how to check and adjust components. Some
units have been modified by various design changes. Each change or modification is labeled
with a Tag/ MOD (modification) number. The Tag/ MOD numbers are identified in the Change
Tag/ MOD Index in Section 6 of this Service Manual.
When a modification affects how a particular procedure is performed, the procedure or steps
are identified with either a W/ Tag/ MOD or a W/ O Tag/ MOD statement. Each procedure or
step that is affected by a modification is identified with the statement, W/ Tag/ MOD, followed
by the modification number. The W/ in the statement indicates that this step must be per-
formed on units that are assembled with that specific modification.
When the procedure or steps are not affected by a particular modification, they are identified
with the statement, W/ O Tag/ MOD, followed by the modification number. The W/ O in the
statement indicates that this step must be performed on units assembled without that specific
modification.
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Introduction