262 Troubleshooting EN
Table 49. Location of PCAs
1 Engine controller board Sequence control, high-voltage output, DC output,
and heater drive
2 Paper-size detection
PCA (Tray 2)
Relay between sensors/solenoids and engine
controller board, and paper size detection
3 Paper-feeder driver
PCA (optional 500-
sheet feeder)
Control and detection of solenoids in the optional 500-
sheet paper feeder
4 Envelope-feeder driver
PCA
Control and detection of solenoids in the envelope
feeder
5 Duplexer driver PCA Controls paper in the duplexer
6 Cartridge memory
controller board
Receives read/write commands from the engine
controller board for cartridge memory; sends error
status messages to the engine controller board if an
error occurs during the read/write process
7 Antenna PCB Relay between the memory controller board and the
engine controller board; permits read/write of the
cartridge memory
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