HP Pro 4300 C9H70UT C9H70UT#ABA manual Index Q2431-90912

counts

estimated pages remaining for print cartridge 242 jobs processed 242

maintenance 249 pages printed 241, 242

resetting with NVRAM initialization 251 setting for pages 249

Courier font setting 45 covers

1,500-sheet feeder 397

1,500-sheet feeder rear 217

1,500-sheet feeder right-side 218

500-sheet feeder 204, 390 cleaning 55

envelope feeder 385 fan 375

formatter 145

illustration and part numbers 368, 369 inner front right side 375

jam locations 295 jams 89 left-side 151

order in which to remove 135 right-side 149, 160 stacker 403 stapler/stacker 403

top 146, 160 CPU types 128 CR setting 46 creases 305

creases, troubleshooting 319

critical messages on control panel 257 See also messages

crooked images, troubleshooting 318 curled images, troubleshooting 319 curled media, troubleshooting 14 customer support. See support custom-size paper

500-sheet tray specifications 11 setting default size 44

stacker or stapler/stacker specifications 13 tray 1 specifications 10

tray 2 specifications 11

D

dark printing

setting toner density 48 troubleshooting 324

Data light 36

data transmission settings 52 DC bias 122

DC controller

block diagram 356 troubleshooting 286

DC controller assembly, order in which to remove 135 DC controller cable guide 371

DC controller PCA formatter operation 127

image formation operation 118 jam detection 87

location 338 operation 69

paper pickup and feed operation 79 part number 375

print cartridge memory chip operation 126 removing and replacing 181

stacker and stapler/stacker operation 101 stapler/stacker operation 106

toner level detection 75

tray 1 operation 80 tray 2 operation 82 DC motors. See motors

DC voltages, generation 71 Declarations of Conformity (DOC) 26 default gateway, configuring 52 defaults

changing with EWS 244 control panel 38 factory 38

for printing 44 restoring 247

restoring using cold reset 251

setting for default paper size when formatter replaced 249 types 38

defects in print quality examples and solutions 311 repetitive 325

deflector solenoids stacker 104, 346 stapler/stacker 107, 109, 346

deleting jobs

using Cancel Job button 37

using control panel Retrieve job menu 41 delivery area jam troubleshooting 329 delivery operation 86

delivery paper full sensor stacker 104 stapler/stacker 107

delivery roller disengaging sensor location 345

operation 107 density control

operation 122 setting 48

developing biases 73 developing cylinder 73 developing process 118, 122 developing unit 122 devices

configuring on Configure Device menu 44 configuring with EWS 244

viewing status with EWS 244 DHCP, configuring 52

Diagnostics menu on control panel 248 diagrams

timing 357 wiring 348

dimensions. See sizes

DIMMs (dual inline memory modules) device failure 260 expandability 8

increasing print speed 129 installing firmware 129

list of installed on configuration page 241 mounting location 127

order in which to remove 135 part numbers 365

printing file directory 41 removing and replacing 160 setting slot location for fonts 45 slots 129

write protected 260 See also memory

diodes in laser/scanner operation 76, 77, 121 direct connection test 255

disk accessory. See hard disk accessory display, control panel. See control panel distorted images, troubleshooting 318

416 Index Q2431-90912