Figure 5-28

Color-sensor control ....................................................................................................................

154

Figure 5-29

Gray-axis correction ....................................................................................................................

155

Figure 5-30 Switches and sensors for the pickup, feed, and delivery system ...............................................

156

Figure 5-31 Motors and solenoids for the pickup, feed, and delivery system ................................................

158

Figure 5-32 Three main units of the pickup, feed, and delivery system .........................................................

159

Figure 5-33

Cassette-pickup mechanism .......................................................................................................

161

Figure 5-34 Cassette paper-size detection switches .....................................................................................

162

Figure 5-35 Cassette lift mechanism ..............................................................................................................

164

Figure 5-36

Paper-level-detection mechanism ..............................................................................................

165

Figure 5-37

Multifeed prevention ....................................................................................................................

166

Figure 5-38 Multipurpose tray pickup mechanism ..........................................................................................

167

Figure 5-39 Multipurpose tray last-paper detection ........................................................................................

168

Figure 5-40

Paper-feed mechanism ...............................................................................................................

169

Figure 5-41

Skew-feed prevention .................................................................................................................

170

Figure 5-42 Media sensor unit ........................................................................................................................

171

Figure 5-43

Loop-control mechanism .............................................................................................................

173

Figure 5-44 Pressure-roller pressurization control .........................................................................................

174

Figure 5-45

Duplexing unit .............................................................................................................................

175

Figure 5-46 Optional input trays .....................................................................................................................

179

Figure 5-47 Signals for the input trays ...........................................................................................................

180

Figure 5-48 Paper-feeder pickup and feed operation ....................................................................................

182

Figure 6-1

Screwdrivers .................................................................................................................................

187

Figure 6-2 Removal sequence 1 flowchart .....................................................................................................

209

Figure 6-3 Remove the secondary transfer unit (1 of 9) ................................................................................

210

Figure 6-4 Remove the secondary transfer unit (2 of 9) ................................................................................

210

Figure 6-5 Remove the secondary transfer unit (3 of 9) ................................................................................

211

Figure 6-6 Remove the secondary transfer unit (4 of 9) ................................................................................

211

Figure 6-7 Remove the secondary transfer unit (5 of 9) ................................................................................

212

Figure 6-8 Remove the secondary transfer unit (6 of 9) ................................................................................

212

Figure 6-9 Remove the secondary transfer unit (7 of 9) ................................................................................

213

Figure 6-10 Remove the secondary transfer unit (8 of 9) ..............................................................................

213

Figure 6-11 Remove the secondary transfer unit (9 of 9) ..............................................................................

214

Figure 6-12 Remove the multipurpose drive unit (1 of 7) ...............................................................................

215

Figure 6-13 Remove the multipurpose drive unit (2 of 7) ...............................................................................

215

Figure 6-14 Remove the multipurpose drive unit (3 of 7) ...............................................................................

216

Figure 6-15 Remove the multipurpose drive unit (4 of 7) ...............................................................................

216

Figure 6-16 Remove the multipurpose drive unit (5 of 7) ...............................................................................

217

Figure 6-17 Remove the multipurpose drive unit (6 of 7) ...............................................................................

217

Figure 6-18 Remove the multipurpose drive unit (7 of 7) ...............................................................................

218

Figure 6-19 Remove the multipurpose-tray guide unit ...................................................................................

219

Figure 6-20 Remove the cassette (Tray-2) pickup unit ..................................................................................

220

Figure 6-21 Removal sequence 2 flowchart ...................................................................................................

221

Figure 6-22 Remove rear-left cover ...............................................................................................................

222

Figure 6-23 Remove rear-right cover .............................................................................................................

223

xxvi

ENWW