Clean And Inspect Carriage Assembly; Reseat Connectors On Mpcb And Carriage Board - ENCAD CADJET Service Manual

CadJet 3D Service Manual

Clean and Inspect Carriage Assembly

Foreign material on the carriage assembly could short out signals being
developed on the carriage assembly and cause erroneous prints or even
damage to the carriage assembly. A very common problem is where ink
has been spilled onto the carriage assembly. All electrical circuits
should be free of foreign material, especially those with conductive
properties.
Clean the carriage assembly by blowing the objects away or gently
brush them aside with a soft brush if required. Be careful not to let
anything to fall into the printer as you clean or it could cause a new
problem later.
Inspect the carriage assembly for any damage to the boards, connec-
tions, or any of the components on the assembly.
Reseat Connectors on MPCB and Carriage
Board
Many problems can be corrected simply by removing and reseating
connections found in circuit assemblies. This process helps to clean the
contacts and can dissipate any static electrical charges that might have
developed.
3-8 Maintenance
Integrated circuits may become weakened or damaged by
electrical discharge. Do not touch or work near integrated
circuits without wearing an ESD wrist strap.
Ribbon connectors can be easily damaged if incorrectly
handled. Observe extreme caution when handling the
ribbon connectors to avoid damage.