Xerox 4400DT - Phaser B/W Laser Printer Service Manual Manual pdf 447 page image
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Xerox 4400DT - Phaser B/W Laser Printer Service Manual

Also see for 4400DT - Phaser B/W Laser Printer: Specification sheet

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Contents
  1. service manual
  2. FRU Disassembly
  3. symbols marked on the product
  4. power source
  5. general guidelines
  6. servicing electrical components
  7. regulatory specifications
  8. safety standards
  9. Contents
  10. Table Of Contents
  11. Table Of Contents
  12. Table Of Contents
  13. Section Contents
  14. resident fonts
  15. printer memory configuration
  16. Parts of the Printer
  17. internal components
  18. front panel configuration
  19. image processor board
  20. Machine Orientation
  21. Menu Map
  22. physical specifications
  23. custom paper sizes
  24. functional specifications
  25. electrical specifications
  26. Error Messages and Codes
  27. Error Messages and Codes
  28. Troubleshooting Procedures
  29. service technician cautionary statements
  30. voltage measurements
  31. using fault history
  32. Service Diagnostics
  33. service diagnostics menu map
  34. using the front panel with service diagnostics
  35. engine test print
  36. Printer Error Messages
  37. jam errors
  38. Image Processor POST Error Codes
  39. jam at tray [#]. open tray [#] and front cover
  40. front cover
  41. jam at mpt; open front cover to clear
  42. jam at front; open front cover to clear
  43. jam at exit; open rear cover to clear
  44. jam at stacker; open both rear covers to clear
  45. jam at front/rear; open front/rear cover to clear
  46. paper size jam; check size and open rear cover to clear. (pse)
  47. Printer Specifications
  48. install or reseat print cartridge
  49. replace print cartridge
  50. toner is low
  51. maintenance kit is near end of life
  52. stacker failure
  53. standard output tray is full. unload paper
  54. tray [#] paper is low
  55. tray 2 (or tray 3) paper is low
  56. no paper in tray
  57. main motor failure
  58. laser unit failure
  59. fuser failure
  60. engine logic board nvram failure
  61. tray 2 or 3 failure
  62. fault reporting devices
  63. Image-Quality Checkout Procedures
  64. toner sensor failure
  65. inoperative printer
  66. erratic printer operation
  67. power supply
  68. main motor assembly
  69. laser assembly
  70. fuser assembly
  71. registration sensor
  72. registration clutch
  73. tray 1 feed clutch
  74. image processor isolation
  75. electrical noise
  76. exit sensor
  77. exit motor
  78. other print defects
  79. initial actions
  80. blank prints
  81. black prints
  82. vertical deletions
  83. horizontal deletions
  84. vertical streaks
  85. horizontal streaks
  86. unfused image
  87. damaged print
  88. spot deletions
  89. repeating defects
  90. residual image
  91. uneven density
  92. skewed image
  93. Service Test Prints
  94. test print
  95. Adjustments
  96. fuser temperature
  97. Resetting NVRAM
  98. Service Preventive Maintenance Procedure
  99. FRU Disassembly
  100. List of Procedures
  101. Paper Feed (Tray 1)
  102. Xerographics
  103. Optional Paper Feeder
  104. Envelope Feeder
  105. rrp 1.1 left interface cover
  106. rrp 1.2 left cover
  107. rrp 1.3 option cover
  108. rrp 1.4 top cover assembly
  109. rrp 1.5 right cover
  110. rrp 1.6 front cover assembly
  111. rrp 1.7 left front cover
  112. rrp 1.8 rear cover assembly
  113. rrp 1.9 front panel assembly
  114. rrp 1.10 interlock cover
  115. rrp 1.11 left plate
  116. rrp 1.12 plate handle
  117. rrp 2.1 retard roller assembly
  118. rrp 2.2 friction clutch assembly
  119. rrp 2.3 retard spring
  120. rrp 2.4 motor assembly
  121. rrp 2.5 paper feeder connector and socket guide
  122. rrp 3.1 paper feeder
  123. rrp 3.2 turn roller assembly
  124. rrp 3.3 tray 1 no paper actuator
  125. rrp 3.4 stack height sensor
  126. rrp 3.5 low paper sensor
  127. rrp 3.6 feed clutch assembly
  128. rrp 3.7 feeder assembly
  129. rrp 3.8 paper feed rollers
  130. rrp 3.9 feeder pwb
  131. rrp 3.10 feeder socket
  132. rrp 3.11 size sensor housing
  133. rrp 3.12 size sensor actuators
  134. rrp 3.13 tray 1 size pwb
  135. rrp 3.14 size harness assembly
  136. rrp 4.1 mpt chute assembly
  137. rrp 4.2 mpt feed roller assembly
  138. rrp 4.3 mpt feed roller
  139. rrp 4.4 bottom tray assembly
  140. rrp 4.5 mpt no paper actuator
  141. rrp 4.6 tray pick up
  142. rrp 4.7 retard pad assembly
  143. rrp 4.8 mpt no paper sensor
  144. rrp 4.9 mpt pick up solenoid
  145. rrp 4.10 envelope connector assembly
  146. rrp 5.1 paper handler assembly
  147. rrp 5.2 toner sensor
  148. rrp 5.3 registration actuator
  149. rrp 5.4 registration sensor
  150. rrp 5.5 registration clutch
  151. rrp 6.1 transport chute assembly
  152. rrp 6.2 fuser assembly
  153. rrp 6.3 fuser harness assembly
  154. rrp 6.4 exit chute assembly
  155. rrp 6.5 exit motor assembly
  156. rrp 6.6 output tray full sensor
  157. rrp 6.7 mid 1 and mid 2 roller assemblies
  158. rrp 6.8 output tray full actuator
  159. rrp 6.9 fuser upper cover assembly/ heat rod
  160. rrp 7.1 transfer roller assembly
  161. rrp 7.2 print cartridge top guide assembly
  162. rrp 7.3 print cartridge sensor assembly
  163. rrp 7.4 laser assembly
  164. rrp 7.5 print cartridge side guide
  165. rrp 8.1 main motor assembly
  166. rrp 8.2 main drive gear assembly
  167. rrp 9.1 fan assembly
  168. rrp 9.2 image processor board
  169. rrp 9.3 engine logic board
  170. rrp 9.4 5 vdc pwb
  171. rrp 9.5 lvps pwb
  172. rrp 9.6 hvps pwb
  173. rrp 9.7 connector pwb
  174. rrp 9.8 main switch
  175. rrp 9.9 front interlock switch assembly
  176. rrp 9.10 rear interlock switch assembly
  177. rrp 9.11 stacker harness assembly
  178. rrp 9.12 duplex harness assembly
  179. rrp 10.1 stacker
  180. rrp 10.2 exit tray extension
  181. rrp 10.4 rear cover assembly
  182. rrp 10.5 lower cover
  183. rrp 10.6 inner exit chute assembly
  184. rrp 10.7 stacker pwb
  185. rrp 10.8 motor drive assembly
  186. rrp 10.9 static eliminator
  187. rrp 10.10 direction solenoid
  188. rrp 10.11 exit sensor assembly
  189. rrp 10.12 stacker full sensor actuator
  190. rrp 10.13 stacker full sensor
  191. rrp 10.14 offset roller assembly
  192. rrp 10.15 mid roller assembly
  193. rrp 10.16 offset assembly
  194. rrp 10.17 offset motor assembly
  195. rrp 10.18 offset assembly home sensor
  196. rrp 11.1 printer removal
  197. rrp 11.2 550-sheet feeder right cover
  198. rrp 11.3 550-sheet feeder left cover
  199. rrp 11.4 550-sheet feeder gear bracket assembly
  200. rrp 11.5 top plate
  201. rrp 11.6 550-sheet feeder drive assembly
  202. rrp 11.7 no paper actuator
  203. rrp 11.8 turn roller assembly
  204. rrp 11.9 feeder pwb
  205. rrp 11.10 feed clutch assembly
  206. rrp 11.11 paper feed rolls
  207. rrp 11.12 feeder assembly
  208. rrp 11.13 stack height sensor
  209. rrp 11.14 low paper sensor
  210. rrp 11.15 feeder socket
  211. rrp 11.17 size sensor housing assembly
  212. rrp 11.18 size sensor actuators
  213. rrp 11.19 size pwb
  214. rrp 11.20 size harness assembly
  215. rrp 12.1 duplex unit
  216. rrp 12.2 turn chute assembly
  217. rrp 12.3 duplex cover
  218. rrp 12.4 duplex pwb
  219. rrp 12.5 drive cover
  220. rrp 12.6 connector chute assembly
  221. rrp 12.7 upper chute assembly
  222. rrp 12.8 motor assembly
  223. rrp 12.9 rear roller assembly
  224. rrp 12.10 middle roller assembly
  225. rrp 12.11 front roller assembly
  226. rrp 12.12 synchronous belt
  227. rrp 12.13 duplex sensor
  228. rrp 12.14 duplex unit home sensor
  229. rrp 13.1 bottom cover
  230. rrp 13.2 top chute
  231. rrp 13.3 envelope feeder pwb
  232. rrp 13.4 retard roller assembly
  233. rrp 13.5 exit pinch roller
  234. rrp 13.6 exit sensor assembly
  235. rrp 13.7 weight arm
  236. rrp 13.8 tray extension
  237. rrp 13.9 no paper actuator
  238. rrp 13.10 no paper sensor
  239. rrp 13.11 gear cover
  240. rrp 13.12 feed clutch
  241. rrp 13.13 transport roller assembly
  242. rrp 13.14 bottom roller assembly
  243. rrp 13.15 feed roller assembly
  244. rrp 13.16 feed roller assembly
  245. rrp 13.17 feed belts
  246. Parts Lists
  247. paper tray 1
  248. paper feeder
  249. paper transport
  250. drive and xerographics
  251. optional feeder
  252. Theory of Operation
  253. Print Process Overview
  254. Table Of Contents
  255. Print Process Description
  256. The Paper Path
  257. the three possible paper paths
  258. front panel message
  259. Drive Flow
  260. drive transmission to the mpt roller assembly
  261. drive transmission to the turn roller assembly
  262. drive transmission to the feeder assembly
  263. roller assembly
  264. drive transmission to the fuser assembly
  265. drive transmission to the exit components
  266. Image Processor Board
  267. Power Supplies
  268. Interlocks
  269. printable area
  270. Fuser Control
  271. fuser trouble (u4 error code)
  272. Erase Cycle
  273. Duplex Printing
  274. duplex printing methods
  275. function of major components
  277. Stacker
  278. duplex operation
  279. Option Feeder Assembly
  280. Wiring Data
  281. Wiring Data
  282. location of p/j connectors
  283. wiring diagram notations
  284. base engine p/j table
  285. base engine p/j maps
  286. base engine block diagrams
  287. wiring diagrams
  288. Sheet Feeder
  289. sheet feeder p/j map
  290. sheet feeder block diagram 1 of
  291. sheet feeder block diagram 2 of
  292. Duplex Unit
  293. duplex unit p/j map
  294. duplex unit block diagram
  296. stacker p/j map
  297. stacker block diagram
  299. envelope feeder p/j map
  300. envelope feeder block diagram
  301. envelope feeder wiring diagrams
Xerox 4400DT - Phaser B/W Laser Printer Service Manual Manual pdf 447 page image
8-34 Phaser 4400 Laser Printer Service ManualThe figure below shows a cut-away view of the printer, to better illustrate thecomponents involved in the Envelope paper path.Error codes generated by paper jams in the Envelope Feeder are listed in the PaperJam Error Codes table on page 8-12.Envelope Feeder Paper Path ó Cut-away View
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This manual is suitable for:
4400DT - Phaser B/W Laser PrinterPhaser 4 400
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