Internal Error "Mpcb Failure; Unrecognized Cartridges Error - ENCAD NovaJet 800 Series Service Manual

Table 4-1. Troubleshooting Table (cont).
Symptoms
Internal ERROR
"MPCB Failure"
Unrecognized
Cartridges Error
NovaJet 800 Series Service Manual
Possible cause
• bad MPWA
• faulty connection
of cartridge ID
chip to flex cable
• wrong cartridges
installed
• incorrect MB
version
• carriage flex
cable disconnected
• trailing cable
connections
• faulty trailing
cable assembly
• faulty carriage
PWA
Solution
replace MPWA
check cartridges
check cartridges
verify MB version
(MB 87-27-0) and
replace MPWA if
-27-0 is not displayed.
check flex driver
cable connections
reseat trailing
cable
replace trailing
cable assembly
replace carriage
PWA (ensure both
boards are the same
version)
Troubleshooting 4-7