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C4224-90962
189
toner cartridge expiration 125
DC power distribution 46
delivery roller
motion 147
developing process 52
diagrams
assembly 158
timing 59
distribution of power 46
document sensor (PS801) 55
documents
fall out of feeder tray 136
door open sensor (SW101) 55
dots
on pages 127
on scanned images 132
draft mode 49
DRAM (dynamic random-access memory) 48
driver
circuits 56
roller motion 147
dropouts in characters 131
drum rotation functional check 143
drum, photosensitive
charging 52
cleaning process 51
troubleshooting 125
dynamic random-access memory (DRAM) 48
E
ECP interface 48
ECU (engine controller unit)
description 44
loads 44
edge of paper, not printing to 126