Instruction manual

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Chapter 5 Section I: Replacement Procedures
Section I: Replacement Procedures
WARNING Unplug the printer power cord from the printer or power outlet before
doing any maintenance procedure. Failure to remove power could result
in injury to you or damage to equipment. Only apply power during
maintenance if you are instructed to do so in a maintenance procedure.
IMPORTANT The components specified in this chapter are field replaceable units
(FRUs). FRUs must be repaired at the factory. Do not repair these items
in the field.
Do not attempt field repairs of electronic components or assemblies. Do
not de-solder any circuit board components. Replace a malfunctioning
electronic assembly with an operational spare. Most electronic
problems are corrected by replacing the printed circuit board assembly,
sensor, or cable that causes the fault indication. The same is true of
failures traced to the hammer bank: it is not field repairable so you must
replace the entire shuttle frame assembly. Hammer spring assemblies,
the hammer bank cover, and the ribbon mask are the only replaceable
components of the shuttle frame assembly.
List of Removal/Installation Procedures
Belt, Paper Feed Timing page 146
Belt, Platen Open page 147
Circuit Breaker page 148
Connector Shells page 149
Connector Stiffening Clips page 151
Control Panel Assembly, Cabinet Models page 153
Control Panel Assembly, Pedestal Models page 154
Controller Board (CMX) page 155
Cover Assembly, Hammer Bank / Ribbon Mask page 157
Cover Assembly, Shuttle page 160
Cover Assembly, Top, Pedestal Models page 161
Expansion-CT page 162
Fan Assembly, Cabinet Exhaust page 162
Fan Assembly, Card Cage page 164
Fan Assembly, Hammer Bank page 165
Hammer Spring Assembly page 166
Magnetic Pickup (MPU) Assembly page 170
Memory Modules and Security PAL page 171
Paper Feed Motor page 174
Paper Ironer page 176