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HP LaserJet Classics II III


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                                               Back to Welcome



                                                    HP DOC




  LaserJeteries 1
         S    ! PriiTter [HP 33440)
              and
    LaserJetllrinter
           i P       (HP33449)
      CombinedServiceanual
                       M




             HP Part No. 33449-90906
                    Printed in USA

             First Edition - February   1990

                                   ,,
`,.
Notice
HEWLETT-PAC-              MA~S NO WARRAN~ OF ~                ~ND ~TH REGARD TO T~S
~TERM,         INCLUDING, BUT NOT LIMITED TO, THE IMPLIED W~TIES                      OF
MERCMTABILI~             AND FIT~SS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall
not be liable for errors contained herein or for incidenti consequential damages in connection
with the furnishing, performance, or use of this material.
This document contins proprietary information which is protected by copyright. Ml rights are
resewed. No pati of this document may be photocopied, reproduced, or translated to another
language without the prior written consent of Hewleti-Packard Company.

The information contined in this document is subject to change without notice.




                                                                                                 ,*




@ Copyright 1990 Hewleti-Packard Company
           HP 33440/HP          33449 COMBINED              PRINTER SERVICE MANUAL
           READER'S COMMENT                  SHEET

           Please @ve us your commente concerning this manual. Your constructive criticism will help us
           create betir manuals in the future. Be as specific as possible, giving section and page references
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           If you wotid like a reply, be sure to include your name and address with your response. Thank you
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           for your feedback.




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                                                                                                 Februaw 1990
                                                                                                 33W9-90906
                                                              ~: ,        ..,`
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                                                               NECESSARY
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BUSINESS REPLY MAIL
FIRST CLASS MAIL     PERWT NO. 141          SOISE, IDAHO


       POST~E   WILL BE PAID BY ADDRESSEE




Hewlti-Packard Company
Boise DiWsion
"Atin:Learning Produc@ M.S. 517
P.O. Box 15
Boise, Idaho 83707-99W
Printing History
This manual was created using HP Tagflectra sotiare on an HP Vectra Personal Computer. The
body ted is printed in Centu~ Schoolbook fonts, and chapter and section heads are printed in
Helvetica fonts. The camera-ready copy was printed on an HP LaserJet III printer and reproduced
using standard offset printing.

Hrst Edition - Februa~       1990




Trademark        credits
PCL is a registered trademark of Hewleti-Packard Company. Resolution Enhancement is
a trademark of Hewlett-Packard Company. PostScript is a registered trademark of Adobe
Systems, Inc. in the U.S. and other countries. HP Vectra Personal Computer is a product of
Hewlett-Packard Company. lBM is a registered trademark of Int~rnationd Business Machines
Corporation.




This manual uses the following conventions:

CoIor indimtes te~ or graphics that is specific to the LaserJet III (HP 33449) printer. Color may
dso be used for emphasis, tities, and other non-HP 33449-specific material.

The names of major printer pafis and assemblies are capitiized.

Bold is used for emphasis, patiicularly in situations where italic me      would be confusing.

Italic type is used to indicate related documents or for emphasis.

COMPUTER indicates teti visible on the printer's display or commands as seen on a PC
          type
terminal.

[-]       indicates keys, such as (=],        on the printer's Control Panel or on a computer
keyboard.

Note             Notes contin impotint       information set off from the teti.
     ,!
 *


Caution          Caution messages appear before or tier procedures which, if not obsemed, could
                 result in loss of data or in damage to equipment.

     @

Warning          Warning messages        signal a specific procedure   or practice which, if not followed
                 correctly, could cause personal injury.
          B
     M


                                                                                                        ...
                                                                                                        Ill
contents
1.   PRODUCT INFoRmmoN
     1-1< INTRODUCTION   . . . . . . . . . . .    .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-3
     1-2, IDENTIFICATION . . . . . . . . . . .    .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-5
     1-3< SPECIFICATIONS . . . . . . . . . . .    .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-6
     1-4< RELATED DOCUMENTATION . . . . .         .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-7
     1-5< SAFETY AND RELATED INFORMATION          .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-8
     1-6< PRINTER P~TSO~RWEW          . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-12
     1-7. CONTROL P~ELOWRWEW,           . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-15
     1-8. SERWCEAPPROACH     ..,.,...         .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-17
     1-9. WARRANTY STATEMENT . . . . . . .        .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-18

2.   S~EP~NGmREQ~REMEm
     2-1. INTRODUCTION    . . . . . . . . . . . . . . . . . .                 . . . . . . . . .                    2-3
     2-2. SITE REQUIREMENTS     . . . . . . . . . . . . . . .                 . . . . . . . . .                    2-3
     2-3. STORING AND HANDLING EP-S CART~DGES . . . .                         . . . . . . . . .                    2-4
     2-4. PAPER SPECIFICATIONS . . . . . . . . . . . . . .                    . . . . . . . . .                    2-6
     2-5. E~LOPE    SPECIFICATIONS . . . . . . . . . . . .                    . . . . . . . . .                    2-8
     2-6. ADHESW NEL      AND OWRHEAD TRANSPARENCY                            SPECIFICATIONS                      2-11

3.   INsTmMmoN      mD comGmmoN
     3-1. INTRODUCTION    . . . . . . . . . . . . . .         . . . .         . . . .         .   .   .   .   .    3-3
     3-2. UNPAC~NG AND INSTALLATION         . . . . .         . . . .         . . . .         .   .   .   .   .    3-3
     3-3. USING THE CONTROL P~EL        . . . . . . .         . . . .         . . . .         .   .   .   .   .    3-7
     3-4. USING THE PRINTING AND CONFIGURATION                MENUS             . . .         .   .   .   .   .   3-14
     3-5. FONT PRINTOUTS    . . . . . . . . . . . . .         . . . .         . . . .         .   .   .   .   .   3-21
     3-6. SELF TESTS . . . . . . . . . . . . . . . .          . . . .         . . . .         .   .   .   .   .   3-25
     3-7. SERWCE MODE     . . . . . . . . . . . . . .         . . . .         . . . .         .   .   .   .   .   3-30

4.   PRmmm           wmNmcE
     4-1. INTRODUCTION     . . . . . . . . . . . . . . . . . . . . . .                        . .     .   .   .    4-3
     4-2.   LIFE E~ECTANCY OF CONSUWLES         AND RELATED PARTS                               .     .   .   .    4-3
     4-3.   WNTENANCE     CHEC~OINTS     . . . . . . . . . . . . . . .                        . .     .   .   .    4-4
     4-4.   CLEANING THE PRINTER     . . . . . , . . . . '. . . . . . .                       . .     .   .   .    4-5
     4-5.   CLEARING PNERJAMS      . . . . . . . . . . . . . . . . . .                        . .     .   .   .   4-11
     4-6.   OZONE FILTER REPLACEMENT . . . . . . . . . . . . . . .                            . .     .   .   .   4-13
     4-7.   FUSER CLEANING PAD REPLACEMENT . . . . . . . . . . .                              . .     .   .   .   4-14
     4-8.   EP-SCARTRIDGE LIFE AND USE . . . . . . . . . . . . . .                            . .     .   .   .   4-15
     4-9.   PRINT DENSITY ADJUSTMENT..       . . . . . . . . . . . . .                        . .     .   .   .   4-16




                                                                                                          Contents-1
  5.   MC~ONM          O~RWEW
       5-1.   INTRODUCTION                                    .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    5-3
       5-2.   IMAGE FORMATION .SYSTEM:            :   :   :   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    5-4
       5-3.   PIcKuP/FEED system  . . . .         .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   5-13
       5-4.   MACHINE CONTROL SYSTEM.             .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   5-16
       5-5.   INTERFACE SYSTEM . . . . .          .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   5-17
       5-6.   POWER DISTRIBUTION . . . .          .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   5-21

  6.   R~OV&      -   REP~C~ENT
       6-1. INTRODUCTION   . . . . . . . . . . . . . .                        .   .   .   .   .   .   .   .   .   .   .   .   .    6-5
       6-2. COWRS, P~ELS, AND ASSOCWTED PARTS                                 .   ,   .   .   .   .   .   .   .   .   .   .   .   6-11
       6-3. WN   BODY COMPONENTS..       . . . . . . .                        .   .   .   .   .   .   .   .   .   .   .   .   .   6-19
       6-4. TOP COWR ASSEMBLY COMPONENTS . . .                                .   .   .   .   .   .   .   .   .   .   .   .   .   6-43
       6-5. BOTTOM COWRCOMPONENTS          . . . . . .                        .   .   .   .   .   .   .   .   .   .   .   .   .   6-53

  7.   ~O~LESHOO~NG
       7-1. INTRODUCTION  . . . . . . . . . . . .                     . .     .   .   .   .   .   .   .   .   .   .   .   .   .    7-5
       7-2. P~-TROUBLESHOOTING    PROCEDURES                          . .     .   .   .   .   .   .   .   .   .   ,   .   .   .    7-6
       7-3. WNFLOWCHART     . . . . . . . . . . .                     . .     .   .   .   .   .   .   .   .   .   .   .   .   .    7-8
       7-4. PMNTER MESSAGE TROUBLESHOOTING                            . .     .   .   .   .   .   .   .   .   .   .   .   .   .   7-13
       7-5. IMAGE FORMATION TROUBLESHOOTING                             .     .   .   .   .   .   .   .   .   .   .   .   .   .   7-57
       7-6. INTERFACE TROUBLESHOOTING . . . .                         . .     .   .   .   .   .   .   .   .   .   .   .   .   .   7-84
       7-7. TROUBLESHOOTING MDS.      . . . . . .                     . .     .   .   .   .   .   .   .   .   .   .   .   .   .   7-87

  8.   Pam     m   DMGU
       8-1. HOW TO USE THE PARTS LISTS . . . . . . . , . . . . . . . . . . .                                                       8-3
       8-2. PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                                                   8-4
       8-3. P~TSIND~     . . . . . . . . . . . . . . . . . . . . . . . . . . . .                                                  8-51

  A    YO~      RO~   W    TO SE~NG        UP YOUR WEMET                              SERIES 11 PRI~ER

  B.   YO~      GUIDE TO   SE~NG      W   YO~         WEWET                   111PRl~ER

  c. HP 33449moRY           BOARD     INsT&MmoN

  D.   CMLING      DUG-

  E.   HP 33440/HP    33449 PRINTER       CO~DS

  F.   HP 33449 DISPMY      MGUAGE         MESMGE             TWSM~ONS

       G1OSXW

       Index




Contents-2
PRODUCT            information


contents
 1.   PRoDucTImoumoN
      1-1. INTRODUCTION . . . . . . . . . . .          . .     . .      . . . . . . . .      1-3
        Features Common to Both Printers . . . . .     . .     . .      . . . . . . . .      1-3
        Features Which Apply Only to the HP 33440      . .     . .      . . . . . . . .      1-3
        Features Which Apply Only to the HP 33449      . .     . .      . . . . . . . .      1-4
      1-2. IDENTIFICATION . . . . . . . . . . .        . .     . .      . . . . . . . .      1-5
      1-3. SPECIFICATIONS . . . . . . . . . . .        . .     . .     . . . . . . . .       1-6
        Physid Dimensions . . . . . . . . . . .        . .     . .     . . . . . . . .       1-6
        Electrid Specifimtions . . . . . . . . . .     . .     . .     . . . . . . . .       1-6
        Environment Specifimtions . . . . . . .        . .     .   .   . . . . . . . .       1-6
      1-4. RELATED DOCUMENTATION . . . . .             . .     .   .   . . . . . . . .       1-7
        HP 33440 . . . . . . . . . . . . . . . .       . .     .   .   . . . . . . . .       1-7
        HP 33449 . . . . . . . . . . . . . . . .       . .     .   .   . . . . . . . .       1-7
      1-5. S~E~     AND RELATED INFORWTION             . .     . .     . . .   . . . . .     1-8
        Genera l . . . . . . . . . . . . . . . .       . .     . .     . . .   . . . . .     1-8
        Laser Safety . . . . . . . . . . . . . . .     . .     . .     . . .   . . . . .     1-8
        Finnish Laser Statement . . . . . . . . .      . .     . .     . . . . . . . .       1-9
        German ZZF Declaration . . . . . . . . .       . .     . .     . . . . . . . .      1-1o
        FCC Regulations . . . . . . . . . . . . .      . .     . .     . . . . . . . .      1-1o
           Federd Communications Commission (FCC) Rdio       Frequency Interference (RFI)
              Statement . . . . . . . . . . . . . . . .      . . . . .   . .    . .         1-10
        Ozone Emission . . . . . . . . . . . . . . . .       . . . . .   . .    . .         1-11
           Genera l . . . . . . . . . . . . . . . . . .      . . . . .   . .    . .         1-11
           Employer Responsibilities . . . . . . . . . . .   . . . . .   . .    . .         1-11
           Recommendations for Minimizing Ozone E~osure      . . . . .   . .    . .         1-11
        Toner Safe@ and Care . . . . . . . . . . . . .       . . . . .   ,.     . .         1-11
      1-6. PRINTER PARTS O~RWEW            . . . . . . . .   . . . . .   . .    . .         1-12
      1-7. CONTROL PANEL O~RWEW            . . . . . . . .   . . . . .   . .    . .         1-15
        Genera l . . . . . . . . . . . . . . . . . . .       . . . . .   . .    . .         1-15
      1-8. SERWCE APPROACH . . . . . . . . . . . .           . . . . .   . .    . .         1-1,7
        Overview . . . . . . . . . . . . . . . . . . .       . . . . .   . .    . .         1-17
        Repair Parts . . . . . . . . . . . . . . . . . .     . . . . .   . .    . .         1-17
        Consumables and Accessories . . . . . . . . . .      . . . . .   . .    . .         1-18




                                                                                             1-1
HP 33440/HP     33449   COMBINED   SERVICE   MANUAL



         1-9. WARRANTY STATE~NT            . . . . . . . . .        .   . . . . . . . . . . . . .                           1-18
           Genera l . . . . . . . . . . . . . . . . . .             .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-18
           Warran& . . . . . . . . . . . . . . . . . .              .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-18
              One-Year Limited Warranty . . . . . . . . .           .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-18
              Exclusions . . . . . . . . . . . . . . . . .          .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-18
              WarranQ Limitations . . . . . . . . . . . .           .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-19
              Sefice During the Warran~ Period . . . . .            .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-19
              Setice After the Warranty Period . . . . . .          .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-20
              Repacting Guidelines for Returning Your Printer           .   .   .   .   .   .   .   .   .   .   .   .   .   1-20




    1-1.   Printer Identifimtion and Power Rating . . .     .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-5
    l-2.   Printer Regulatory Labels...       . . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-8
    l-3.   Laser Safety Label Example..       . . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-9
    l-4.   Finnish ker S%tement.          . . . . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .    1-9
    l-5.   West German ZZF Declaration . . . . . . .        .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-1o
    1-6.   ~ 33449 Printer (Front and Right Side View)          .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-12
    l-7.   ~33449Printer      (Rearview).     . . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-13
    l-8.   ~33449Printer      (Internal View) . . . . .     .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-14
    l-9.   ~33440     Control Panel...      . . . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-15
  l-10.    ~33449     Control Panel...      . . . . . . .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   .   1-15




Tables
    l-1.   Physid Dimensions . . . . . . . . . . . . . . . . .                      .   .   .   .   .   .   .   . . .        1-6
    l-2.   Electrid Specifimtions.    . . . . . . . . . . . . . .                   .   .   .   .   .   .   .   ...1-6
    l-3.   Entironmenti Specifimtions . . . . . . . . . . . . .                     .   .   .   .   .   .   .   . . .        1-6
    1-4.   Key Functions ~ 33440 and ~ 33449 Printers . . . . .                     .   .   .   .   .   .   .   . . .       1-16
    1-5.   Control Panel Indimtors ~ 33440 and ~ 33449 Printers                     .   ,   .   .   .   .   .   . . .       1-17




   1-2
                                                HP 33440/HP    33449 COMBINED      SERVICE    MANUAL




f-l.     introduction

Features Common to Both Printers
Because the HP 33440 (LaserJet series II) and HP 33449 (LaserJet III) printers produce
high-quality output quietiy and reliably, they are idedly suited for today's business environment.

Both laser printers:

    Employ reliable, efficient, and easily maintained designs based on electrophotographic, electronic,
    and laser technolo~es to produce high-quality print on a variety of media, including copier
    papers, cotton bond papers, envelopes, transparencies, and labels. Output selection can be for
    either correct (face down) or reverse (face up) order.
    Combine a charging corona, photosensitive drum, toner, developer, and drum cleaner in a single
    assembly, the Electrophotographic (EP-S) Cartridge. Simply replacing the EP-S Cartridge allows
    maintenance and periodic replacement of consumables and parts by the customer, saving both
    time and maintenance costs.
    Employ a compact, safe semiconductor laser driven directiy by control signals. It is certified as
    conforming to U.S. Bureau of Radiologid Health (BRH) standards.
    Produce up to eight pages per minute, depending upon sotiare and dati constraints, with
    extended symbol set capability and Control Panel configurability.
    Provide serial (RS-232 and RS-422) and pa~lel (Centronics) 1/0 mpabilities, with provision for
    other 1/0 mpabilities through an optional 1/0 slot.
    Support macro cartridges for forms generation.


Features Which Apply Only to the HP 33440
    Memo~ Provides 512 ~ytes toti internal read/write memory with the capability to increase
    memory by the addition of 1, 2, or 4 Mb~es, through a single expansion slot, up to 4.5 Mb~es
    toti.
    Font Handling Provides up to 7-inch character cell size, printable space character, downloadable
    fonts, font managemen~ and Up to 16 fonts per page. Ten bitmapped fixed-pitch internal fonts
    are standard. Two font mrtridge slots are available.
    Printer Command Language: Employs the PCL4TM Printer Command Language.

s   PostScriptR Printer Language: Supports the PostScriptR printer language through an optional
    HP interface package.
s   Resolution: Provides up to 300 x 300 DPI (dots per inch) resolution.




                                                                                                    1-3
HP 33440/HP   33449 COMBINED      SERVICE   MANUAL


Features Which Apply Only to the HP 33449
  Memo~ Provides 1 Mbfie of toti internal read/write memory with the capability to increase
  memory by the addition of 1, 2, 3, or 4 Mbytes, through tio expansion slots, up to a toti of 5
  Mbfies.
  Font Handling Provides dl the features of the HP 33440 as well as font soling capability for
  generating fonts of any desired size from 4 to 999.75 points in quarter-point increments and
  autorotation for fonts and raster graphics. (Print images are rotated automatically as the page
  orientation is rotated, allowing available fonts to be used in dl rotations.) Expanded symbol sets
  are dso built in, as well as 14 bitmapped fonts and eight salable ~efaces.
  Printer Command LanWage: Employs the PCL5TM Printer Command Language, containing
  HP-GL/2 (HP's ~ndard plotter language) and other enhanced printing features such as font
  soling and font rotition.
  PostScriptR Printer Language: Supports PostScriptR printer language through an optional HP
  persondi~ wrtridge.
  Resolution: Provides up to 300 x 300 DPI resolution as well as employing Resolution
  Enhancement,TM an HP proprietary technolo~ that improves the visual quality of printed
  images beyond the 300 DPI standard capabiti@.
  Page Protection Provides, with expanded memo~, the ability to avoid partial printing of
  complex, graphics-intensive pages.
  Localized Display Messages: N1OWSlodization      of display messages for five languages.




1-4
                                                                      HP 33440/HP   33449 COMBINED   SERVICE       MANUAL


1"2. IDENTIFICATION
The re@atory labels, lomted behind the Face-Up (Rear) output Tray, are different for the HP
33440 and HP 33449. For the HP 33440, the regulatory label contins both the model and serial
number. On the HP 33449, the model and serial number are located on a separate label just
below the power connector on the right side panel of the Main Body Covers (see Figure l-l). Note
that this portion of the right side panel is removable on the HP 33449. (Care must be taken to
ensure the printer's cover, with its serial number, stays with the printer.) The model number is
an alphanumeric such as HP 33440A or 33449AB.

For both printers, the serial number consisti of the following sequence: a four digit prefk, a letier,
and a five digit suffk (for emple:  0000JOOOOO).   The prefk is used to indicate year and week
of manufacture. The letter designates the country in which the printer was manufactured ("J"
indicates Japan, for e~mple). The suffii is a sequential number incremented for each printer
produced.

For both printers, the power rating is lomted on a plate nefi to the Power Switch (see Figure l-l).




                                                                                                      FACE-UP   OWPUT
                                                                                                      TWY    @EGUWTORY
                                                                                                      UBEL   BEHIND)




    R
     WER          RAnNG            E::               3344?A           3;::0000
                                   1                                                1
     WT-          -   1OO-W5
                                   MODEL   AND   SERIAL   No. PLATE
     Hz    50-w
                                  (HP 33449   ONLW
     WS.      7.6




    HP 33W            REGUMTORY    MBEL




                                  Figure 1-1. Printer identification and Power Rating


                                                                                                                         1-5
HP 33440/HP    33449 COMBINED        SERVICE    MANUAL


1-3.      specifications
Physical Dimensions

                                     Table 1-1. Physical Dimensions




Electrical    Specifications

                                   Table 1-2. Electrical Specifications*



 Volkge                  100 V or 115 V A 10%                    220 V or 240 V ~ 10%
 FreWencies              500r60Hz+2Hz                            50 Hz+2Hz

 C-nt,                   8.7 A at 100 V                          3.4 A at 220 V
 Steady State            7.6 A at 115 V                          3.1 A at 240 V
 Power,                  870 Wati at 115 V                       850 Watts at 220 V
 Printing -mum           3000 BTU/hr                             2900 BTU/hr
 Power,                  170 Wati at 115 V                       170 Wa~ at 220 V
 Stindby                 580 BTU/hr                              580 BTU/hr
 * With no accessories instiled.



Note             The HP 33440A and HP 33449A (50/60 Hz) have a transformer that
                 automatidly adjus~ for 100 or 115 volk, the HP 33440AB/AU and HP 33449AB
     Pi
                 (5O Hz) automatidy adjust for 220 or 240 volts.
 v


Environmental      Specifications

                               Table 1-3. Environmental     Specifications




1-6
                                                HP 33440/HP    33449 COMBINED      SERVICE   MANUAL

                         Table 1-3. Environmental   Specifications   (continued)



    H~idity                                  Operating 20 to 80% RH
                                        *Non-Operating 10 to 80% RH
    Mtitude                                  Operating     Oto 4,600m (O to 15,100 fi)
                                        *Non-Operating     Oto 15,300m (O to 50,200 ft)
    Audible Noise                               Printing5,8 B LWAd(1 B = 10 dB)
                                                        42.9 dB LP~~ (bystander at 4 positions)
                                                Standby 5.0 B LW*d (1 B = 10 dB)
                                                        33.3 dB LpA~ (bystander at 4 positions)
    * Printer only, not EP-S Cartridge. See Chapter 2, Section 2-3 for EP-S Cartridge.
                                                                                                      I

1"4. RELATED DOCUMENTATION
The folloting documents provide additiond information about the HP 33440 and HP 33449
printers:


HP 33440
Shipped tith printer:
s   LaserJet series II Printer Getting Started Manual (P/N 33440-90908). (Replaced by Your
    Road Map to setting up Your tiserJet series II Printer, P/N 33440-90004, in November 1989;
    included here as Appendk A.)
s   LaserJet series II Printer User's Manual (P/N 33440-90901). (English language version.)
s   LaserJet series II Software &plication Notes (P/N 33440-90006). (U.S. only.)
s   LaserJet series II Printer Technical Reference Manual (P/N 33440-90905).

Additiond information:

s LaserJet series II Printer Paper Specification Guide (P/N 5954-7339).

w Peripherals Handbook Insert (P/N 33440-90906).
H Self-Paced Training Guide and Final Review (P/N 33449+49A-901O1).


HP 33449
Shipped tith printec
u   Your Guide to Setting up Your hserJet III (P/N 33449-90905); included here as Append& B.
s   LaserJet III Printer User's Manual (P/N 33449-90901). (English language version.)
s   LaserJet III So~are &plication Notes (P/N 33449-90917). (U.S. only.)
s   LaserJet III User's Quick Reference Guide (P/N 33449-90902).

Additiond information:
s   Peripherals Handbook Insert (P/N 33449-90908).
s   SelfiPaced Training Guide and Final Review (P/N 33449+ 49A-901O1).
s   LaserJet III Technical Quick Reference Guide (P/N 33449-90904).
s   LaserJet III Technical Reference Manual (P/N33449-90903).


                                                                                                  1-7
HP 33440/HP   33449 COMBINED     SERVICE    MANUAL


?-5. SAFETY AND RELATED INFORMATION

General
The HP 33440 and HP 33449 printers are UL 478 listed, CSA 22.2154 certified, and manufactured
in accordance with DIN EC 380/IEC 435. Where necessary, warning labels are affked to the
printer wherever special service atiention is needed.

warning         Because   the printers contain potentially hazardous    voltages,   accessories   such
                as watches and rings should be removed before working on the printers.
          B
      u


Laser Safety
The both printers are certified as Class 1 laser products under the U.S. Department of Health
and Human Services (DHHS) Radiation Performance Standard according to the Radiation
Control for Health and Safety Act of 1968. This means that they do not produce hazardous laser
radiation. Both printers dso comply with the Center for Detices and Radiologid Health (CDRH)
regulations. Since laser light emitted inside the printer is completely confined within protective
housings and etirnd covers and futiher contined by an interlock system, the laser beam cannot
escape during any phase of normal user operation.
The Center for Devices and hdiologid    Health (CDRH) of the U.S. Food and Drug
Administration implemented relations for laser products on August 2, 1976. These regulations
apply to laser products manufactured since August 1, 1976. Compliance is mandatory for products
marketed in the United States. The label below (see FiWre 1-2) indicates compliance with CDRH
regulations and must be attached to liner products marketed in the United States. European
models dl comply with or meet IEC 825 for laser safety.




L


                              Figure 1-2. Printer Regulatory   Labels

warning         When servicing or adjusting the printer's optical system, do not place
                screwdrivers or other shiny objects in the path of the laser beam.       Although
          B
                invisible, the reflected beam can cause permanent eye damage.
      u




1-8
                                                     HP 33440/HP      33449 COMBINED    SERVICE   MANUAL

mere there is danger of exposure to laser radiation, the fo~oting label is attached inside printer
covers:




                        I    DANGER-INv~Bu
                                     AVOID
                                              LASERRADIAmON
                                                          WHEN OPEN.
                                           DIRE~ EX~URE TO BEAM.
                             ATTENTION - RAYONNEMENTASERINVISISLES1OUVE~.
                                                     L
                                                                          \


                                         DANGEREUX REGARDER Ul~MEUR.
                                                   N         A
                             VORSICHT- UN~      RE LASERSTRAHLEN ENNGE6FFNH.
                                                               W
                                       NM    HINEINSEHEN.                  \




                                     ~             g' c&\
                            CAUTION-INVSBM LASERRADIAN WHENOPEN.
                                     AV~D EX~SURE ~ BEAM.


                        I
                            ATTENTION -RAYONNEMENT
                                       DOUVERTURE
                                       AU FAZU.
                                                  LASEREN CAS
                                                 ExPO~N   DANGER-
                                                                          I
                             VARO!-AVATTAESSA

                            @ K-6
                                             OLET ALrmNA NAKYMAnOMAW
                                   U=RSA_lLYLLE AM KATSDS~TEESEEN.
                                                                m-wa      I
                                Figure 7-3. Laser     safety Label Example

Finnish Laser Statement
The folloting notice is required to be printed in Finnish.

                                                                                                         \
      TURVALL         IS UUSYHTEENVETO

      MERTURV&LISUUS

      HP 33440AB ja HP 33449AB laserki~oitimet ovat ti~an          kanndta turvdlisia luokan 1
      laserlaitieita. Laitieet on tirkastanut Suomessa Tyoterveyslaitosja tyyppihyv~ynyt
      Tyosuojeluhdlitus, Tyosuojeluhdlituksen hyv~yntinumerot

      HP 33440AB: TSH 1563/6019/87
      HP 33449AB: TSH 713/6019/89

      Tarkastuksessalaitieiden turvdlisuusluokka on mtira~               vdtioneuvoston p=toksen N:o
      472/1985 ja standardin SFS-EC 825 mukaisesti.

      NormAikaytossa laitteen suojakotelo estia laser~teen p%syn laitteen ulkopuolelle.

      HUOLTO

      firjoittimien sis~la ei ole ka~jan huolletitissa olevia kohteita. Laitieet saa avati ja
      huoltaa ainoastaan laserltitieiden huoltimiseen koulutetiu henkilo. T~laiseksi
      huoltotoimenpiteeksi ei katsota variainekasetin vaihtimista, paperiradan puhdistusta ti
      muiti kayttoohjeessa lueteltuja, ka~j an tehtiv~si tarkoitetiuja yllapitotoimia.

     Wrjoittimien turvdlisuusluokitus muuttuu mikNi niiden suojakotelo ava~n. Laitteiden
     sis~la olevassa laseryksikossa on laserdiodi,j oka Iaitieen toimiessa lahe~ silm~le
     n~ymatonti, luokan 3B Iasersateilya.

                                  Figure 1-4. Finnish Laser Statement

                                                                                                       1-9
HP 33440/HP      33449 COMBINED     SERVICE    MANUAL


German ZZF Declaration
The fo~owing notice, which is required to be printed in German, applies to printer operation and
seticing in Germany.



        Funkentstorung    Deutschland   Herstellerbescheinigung

        Hiermit wird bescheini@, dd das Gerat HP 33440 oder ~ 33449 in ~ereinstimmung         mit
        den Bestimmungen von Postverfugung 1046/84 funkentitirt ist.

        Der Deutschen Bundespost wurde das Inverkehrbringen dieses Gerates angezei~ und die
        Berechtigung zur ~erpfifung der Serie auf Einhdtung der Bestimmungen eingeraumt.

        Wird das Gerat innerhdb einer Anlage betrieben:

        8   So mufi bei Inanspruchnahme der Algemeinen Genehmigung FTZ 1046/84 die gesamte
            Anlage der oben genannten Genehmigung entsprechen.

        H   Die mit einer FTZ-Serienprtifnummer gekennzeichnet ist, und fir die eine
            Betriebsgenehmigung vorlie~ oder beantragt wird, so sind in der Regel keine weiteren
            Schritte notwendig.


                               Figure 1-5. West German ZZF Declaration

FCC Regulations

Federal     Communications   Commission (FCC) Radio Frequency      Interference   (RFI) Statement

This equipment generates and uses radio frequency energ. If not instiled, serviced, and
used properly (that is, in strict accordance with the manufacturer's instructions), it may cause
interference to radio and television reception. The equipment has been type tested and found to
comply within the limits set for a Class B computing device in accordance with the specifimtions
in Subpart J of Part 15 of FCC ties, which are designed to provide reasonable protection against
such interference in a residential instigation.

Note                Use of a shielded interface able is required for compliance to fdl within the Class
                    B timits in Subpart J of Part 15 of FCC rules.
        #
    w

No guarantee can be given that interference with radio or television reception will not occur in a
particular instigation. If this equipment does muse interference - which can be determined by
turning the equipment off and on 



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