Chapter 5 Repair; Repair Levels; Repair Procedure - Epson EU-T432 Technical Manual

Confidential
Chapter 5
Repair
Repairs are divided into two levels (A and B) in consideration of the degree of difficulty of
repair. The person who repairs the printer should perform the proper repair procedures,
depending on the individual technical knowledge and skills.

Repair Levels

Level A:
Level B:

Repair Procedure

When problems occur, check the condition of the printer and locate the cause of the problem as
outlined in "Troubleshooting Table." Then repair the unit properly. The table consists of the
following five sections.
Phenomenon
Condition
Cause
Where/ how to check
Procedure
Rev. A
Requires general knowledge of the printer's operation
principles and structure but does not require specialized
experience.
Requires a certain degree of knowledge of the printer's
operating principles and structure as well as skills and
experience using special tools for disassembly and assembly
of the printer.
Find the type of problem in this column.
Check the condition of malfunction by referring to this
column.
Locate the cause of the problem by referring to this column.
Also, the repair level is indicated for each cause; use this
indication to determine the method of repair.
The mechanisms that may cause problems as well as
checkpoints are listed in this column. Check the unit as
outlined in this column to locate the malfunctioning section.
Repair malfunctioning sections as indicated in this column. If
the same problem or phenomenon reoccurs after the specified
repair is performed, check other items in the "Cause" column
and repair the unit again.
EU-T432 Technical Manual
Repair 5-1