Figure 241. Error format for paper handling . . . . . . . . . . . . . . . 493 Figure 242. Connectors on the controller board . . . . . . . . . . . . 503 Figure 243. General printer circuit diagram (1 of 4). . . . . . . . . . 504 Figure 244. General printer circuit diagram (2 of 4). . . . . . . . . . 505 Figure 245. General printer circuit diagram (3 of 4). . . . . . . . . . 506 Figure 246. General printer circuit diagram (4 of 4). . . . . . . . . . 507 Figure 247. Major assembly locations (1 of 2). . . . . . . . . . . . . . 517 Figure 248. Major assembly locations (2 of 2). . . . . . . . . . . . . . 518 Figure 249.
Printer covers and doors (1 of 4)—Filler panel for tray 2 (HP Color LaserJet 8550 base model only) . 519 Figure 250. Printer covers and doors (2 of 4) . . . . . . . . . . . . . . 520 Figure 251. Printer covers and doors (3 of 4) . . . . . . . . . . . . . . 522 Figure 252. Printer covers and doors (4 of 4) . . . . . . . . . . . . . . 524 Figure 253. Internal cover assembly . . . . . . . . . . . . . . . . . . . . . 526 Figure 254. Internal components (1 of 6). . . . . . . . . . . . . . . . . . 528 Figure 255. Internal components (2 of 6). . . . . . . . . . . . . . . . . . 530 Figure 256. Internal components (3 of 6). . . . . . . . . . . . . . . . . . 532 Figure 257.
Internal components (4 of 6). . . . . . . . . . . . . . . . . . 534 Figure 258. Internal components (5 of 6). . . . . . . . . . . . . . . . . . 536 Figure 259. Internal components (6 of 6). . . . . . . . . . . . . . . . . . 538 Figure 260. Drum/cartridge drive assembly. . . . . . . . . . . . . . . . 540 Figure 261. Delivery drive assembly . . . . . . . . . . . . . . . . . . . . . 541 Figure 262. Tray 3 assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 542 Figure 263. Tray 2 assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 543 Figure 264. Paper pick-up assembly (1 of 3). . . . . . . . . . . . . . . 544 Figure 265. Paper pick-up assembly (2 of 3). . . . . . . . . . .
. . . . 545 Figure 266. Paper pick-up assembly (3 of 3). . . . . . . . . . . . . . . 546 Figure 267. Registration frame assembly . . . . . . . . . . . . . . . . . 548 Figure 268. Registration roller assembly . . . . . . . . . . . . . . . . . . 549 Figure 269. Feeder assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 550 Figure 270. Tray 1 pick-up assembly. . . . . . . . . . . . . . . . . . . . . 551 Figure 271. Tray 1 assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 552 Figure 272. Delivery assembly . . . . . . . . . . . . . . . . . . . . . . . . . 553 Figure 273. Delivery cover assembly. . . . . . . . . . . . . . . . . . . . . 554 Figure 274. Transfer belt assembly .
. . . . . . . . . . . . . . . . . . . . . 555 Figure 275. Fuser assembly (1 of 2) . . . . . . . . . . . . . . . . . . . . . 556 Figure 276. Fuser assembly (2 of 2) . . . . . . . . . . . . . . . . . . . . . 557 Figure 277. PCA assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . 559 Figure 278. 2,000-sheet input unit covers and doors . . . . . . . . 560 Figure 279. 2,000-sheet input unit internal components . . . . . . 562 Figure 280. Multi-bin mailbox components (1 of 3) . . . . . . . . . . 564 Figure 281. Multi-bin mailbox components (2 of 3) . . . . . . . . . . 566 Figure 282. Multi-bin mailbox components (3 of 3) . . . . . . . . . . 568 EN List of Figures 13