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HP (Hewlett-Packard) 8000 N manual

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Table of contents for the manual

  • Page 1

    English HP LaserJet 8000, 8000 N, 8000 DN and HP Laser Jet Mopi er 240 Pri nters Service Manual For the complete PDF manual please visit www.LaserPros.com.[...]

  • Page 2

    Ser vice Manual HP LaserJet 8000 (C4085A) HP LaserJet 8000 N (C4086A) HP LaserJet 8000 DN (C4087A) HP LaserJet Mopier 240 (C4228A)[...]

  • Page 3

    Hewlett-P ackard Compan y 11311 Chinden Boule vard Boise, Idah o 83714 U .S .A. © Copyright Hewlett-P ackard Compan y 1998 All Rights Reserved. Reproduction, adaptation, or translation without prior wr itten permission is prohibited, except as allowed under the cop yright laws . Publication n umber C4085-91087 First edition, Nov ember 1998 Wa r r [...]

  • Page 4

    C4085-91087 iii Con ventions This manual uses the f ollowing conv entions: The names of major printer par ts and assemb lies are Capitalized. Color is used to emphasize items which are impor tant to the material under discussion. Bold is used f or emphasis, par ticular ly in situations where italic type would be confusing. Italic type is used to in[...]

  • Page 5

    iv C4085-91087 Chapter Descriptions 1 Pr oduct Information Contains printer features and product o ver view , tray capacities and sizes , media specifications, ser vice approach, how to get technical assistance, and required saf ety and compliance statements. 2 Site Requirements Contains space and environmental requirements . 3 Operating Overview C[...]

  • Page 6

    C4085-91087 v 8 P ar ts and Diagrams Contains e xploded view dra wings and par t number listings for all replaceable parts in the pr inter and paper-handling accessories. Contains two replaceab le par ts tab les: one sor ted alphabetically by par t name, and one sor ted numerically by par t number . Both tables are cross ref erenced to the diagrams[...]

  • Page 7

    vi C4085-91087[...]

  • Page 8

    C4085-91087 vii T able of Contents 1 Product Information Printer Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Paper Capacities and Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Model a[...]

  • Page 9

    viii C4085-91087 Material Safety Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Environmental Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Safety Statements . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 10

    C4085-91087 Table of Contents ix 4 Maintenance and Adjustments Cleaning the Printer and Accessories . . . . . . . . . . . . . . . . . . . . . .82 Cleaning Spilled Toner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84 Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85 Tray Adjustment Procedure . . [...]

  • Page 11

    x C4085-91087 Main Functional Cycles of the Stapler (Internal Paper Path) . . . . . . . . . . . . . . . . . . . . . . . . . . .141 Communication Link (Daisy Chain). . . . . . . . . . . . . . . . . . . .142 Paper Jam Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144 Printer Timing . . . . . . . . . . . . . . . . . . . [...]

  • Page 12

    C4085-91087 Table of Contents xi 2000-sheet Input Tray Removal and Replacement . . . . . . . . . . .231 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232 Front Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233 Back Cover . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 13

    xii C4085-91087 Controller PCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305 Right Door Assembly (Paper Path Cover) . . . . . . . . . . . . . .306 Face-down Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310 Em[...]

  • Page 14

    C4085-91087 Table of Contents xiii 7 Troubleshooting Troubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376 Printer and Paper-Handling Troubleshooting Process . . . . .378 Troubleshooting the Printing System . . . . . . . . . . . . . . . . . . . . .380 Preliminary Operating Checks . . . . . . . . . . . . . . . . . [...]

  • Page 15

    xiv C4085-91087 Printer Parts and Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . .512 Paper-Handling Devices Parts and Diagrams . . . . . . . . . . . . . . .524 Input Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .524 Output Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]