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248 Troubleshooting Q1860-90918
Figure 152. PCA (duplexer)
Table 57. PCAs
No. Name Function
1 Dc controller Controls the print sequence
2 Power supply Generates +24 Vdc, +5 Vdc, and +3.4 Vdc and drives the
fuser heaters
3 Paper-handling PCA Relays the signals between sensors, loads, and the
dc controller
4 250-sheet paper feeder control
PCA
Controls the loads in the 250-sheet paper feeder and sensors
5 Feeder sensor PCA Monitors sensor and switches
6 500-sheet paper feeder control
PCA
Controls loads in the 500-sheet paper feeder and sensors
7 Feeder sensor PCA Monitors the sensor and switches
8 Duplexer driver PCA Controls the loads in the duplexer and monitors sensors
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