Check List - HP LaserJet II Serie Manual De Instrucciones

HP 33440/HP 33449 COMBINED SERVICE MANUAL
PRE-TROUBLESHOOTING CHECK LIST
Blank Display Partial Pages
Veri& that power cord is firmly connected to both the printer and
its power source. Remove any Optional 1/0 or memo~ PCAS.
Slow Printer
The optimal eight-page-per-minute specification does not take
into account data transfer time between the host and printer or
the time required by the printer to format more complex data
such as HP-GL/2 commands and scalable fonts. A complex page
may take up to several minutes to format before printing. The
WY indicator should flash while formatting.
A Print Fonts routine involving scalable fonts (HP 33449only)
will typically cause delays of up to 30 seconds between pages.
Because the HP 33449 self test involves font scaling and HP-GU2
graphics, it will not run continuously at eight ppm.
Shoti EP-S Cartridge Life
A new Hewlett-Packard EP-S Cartridge is rated for 4,000 letter-
sized pages with average coverage (i.e., a double-spaced page) of
five percent toner per page. Fores, graphics, and/or a density
dial setting less than "5"will yield fewer pages.
Paper with high surface abrasion (typical of a good writing or
general purpose bond paper) can prematurely wear the surface of
the EP dmm. Recommend a good quality xerographic bond paper.
Font Cartridge Not Recognized
Reinstall cartridge - push until it "clicks."
Print Quality Problems
Thoroughly clean the printer (see User's Manual).
Avoid poor quality or non xerographic paper and improper paper
storage practices, Recommend use of high quality xerographic
bond paper and proper storage per the User's Manual.
Black Pages (Undefined Border)
Broken Primary Corona wire - replace the EP3 Cartridge.
Dark Streaks (or Lines) Down the Page
C1ean the Primary Corona wire with felt end of cleaning tool.
Check the Fuser Cleaning Pad. If marks correspond to streaks, it
may need replacement. Check any pre-printed forms for cor-
responding images.
Light Areas of Print (Blotches or tines/Streaks
Down the Page)
Toner running
10W.
Gently rock the EP-S Qrtridge around its
long axis to resolve temporarily. May require a new EP-S
Cartridge immediately.
Clean tbe Transfer brona housing and wire.
Improper paper storage and some '@es of paper will exhibit this
problem. Recommend usage of high quality xerographic bond
paper and proper storage techniques.
Smeared Print
Paper with a surface texture that is too smooth will exhibit this
problem.
Gray Background
With envelopes and thick media, set the Print Density dial to a
lower (darker) setting.
Clean the Primary Corona wire with felt end of cleaning tool.
Set AUTO COW = OFF in Configuration Menu and
troubleshoot error message. If no message, probable cause is an
application and/or printer setup problem.
Communication Problems
If tied to an MS-DOS ~tem, ensure the AUTOEXEC.BAT file
properly reflects UO configuration, via the MODE and COM
commands, and reboot.
Veri& that a cable known to be good is securely installed between
the host and printer -10' max. for parallel, SO'max. for RS-232,
Verify that both the host ~tem and printer'Control Panel
configurations match.
. Check that the application's printer configuration file has not
been improperly modified or inadvertently purged.
02 WARMUP (Continuous)
Can be caused by host interface or cabling problems, or improper
use of the printer's interface ports. Remove 1/0 cables and
power cycle the printer.
13 PAPER JAM Indications
. If media visiblyjams, it maybe unsuitable for the hserJet
printer. Try a reputable xerographic bond paper or other suitable
media per Chapter 2 herein or Appendix D of the User's Manual.
. If using envelopes, ensure they meet specifications in Section 2-5
of this manual or Appendix D of User's Manual. Do not shuffle
envelopes prior to Io;ding in the input tray.
Printer may require operator cleaning. (See User's Manual.)
If all looks well but jam indication occurs just prior to delive~,
host application and/or printer setup is probably at fault. Can
occur if unexpected media size is placed in Manual Feed tray.
ERROR 20 (Memory Overflow)
Insufficient printer user memoq is avaiIable to format the cur-
rent page. Additional user memory may be freed up by removing
any soft fonts or macros. User may need to purchase additional
memo~.
ERROR 21 (Print Overrun)
The current page is too complex to be printed in its entirety. On
the HP 33440, the only solution is to simplify the page. With the
HP 33449, accexory memory can be purchased and PAGE
PROTE~ on the Configuration Menu) enabled.
ERROR 22 (1/O Configuration Error)
Because printer and host are not handshaking properly, the
pnntets UO buffer has overrun. Verify cabling per Appendix D,
and the host's interface/configuration and the printer's bntrol
Panel configuration.
ERROR 40 (Data Transfer Error)
Printer is receiving data in an unrecognizable format, a common
result of having powered down the host with the printer online.
Nso caused by nonmatching baud rates or host configuration
other than an 8-bit-1 start/stop bit – no parity ASCII character.
Unexpected Results - No Failure Indication
Most unexpected problems can be attributed to the host applica-
tion or its use. The Personal Peripherals &ist Line is available
free of charge to help the user through these problems at
(208) 323-2551. Note that this is a toll call.
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