HP Laserjet,Color Laserjet 4350 User manual

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installation
installation
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q5421a • q5422a
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Copyright
© 2005 Copyright Hewlett-Packard
Development Company, L.P.
Reproduction, adaptation or translation without
prior written permission is prohibited, except as
allowed under the copyright laws.
The information contained herein is subject to
change without notice.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be construed
as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or
omissions contained herein.
Part number: Q5421-90903
Edition 1, 10/2005
Windows
®
is a U.S. registered trademark of
Microsoft Corporation.
Copyright
© 2005 Copyright Hewlett-Packard
Development Company, L.P.
Toute reproduction, adaptation ou traduction
sans autorisation écrite préalable est interdite,
sauf si autorisée par les lois sur le droit d'auteur.
Les informations contenues dans ce document
sont sujettes à modification sans préavis.
Les seules garanties applicables aux produits
et services HP sont définies dans les
déclarations de garantie explicite
accompagnant ces produits et services.
Aucune information fournie dans ce document
ne doit être considérée comme constituant une
garantie supplémentaire. HP ne peut être tenue
responsable des erreurs ou omissions
techniques ou éditoriales contenues dans ce
document.
Part number: Q5421-90903
Edition 1, 10/2005
Windows
®
, est une marque déposée de
Microsoft Corporation aux États-Unis.
2

This package contains one maintenance kit
(Q5421A 110 V kit or Q5422A 220 V kit)
consisting of one fuser, one transfer roller,
one plastic transfer-roller tool, one pickup
roller, eight feed rollers, and one pair of
disposable gloves. The cost of this kit is not
covered under the original printer warranty or
under most extended warranties.
NOTE Depending upon which optional
accessories are installed, you might not need
all of the feed rollers included in this kit.
Disconnect all cables from the rear of the
printer.
NOTE There might be additional cables
connected to the printer that are not shown
below. Make sure that you disconnect
all
of
the cables from the rear of the printer.
Before installing the maintenance kit:
CAUTION When replacing the fuser, the
printer
must
be turned off for 30 minutes to
allow the fuser to cool down.
Turn the printer power off.
To replace the transfer roller:
CAUTION Never expose the print cartridge
to bright direct light. Cover the print cartridge
when it is removed from the printer to
prevent the cartridge from being damaged.
Open the top cover and remove the print
cartridge. Locate the transfer roller beneath
the area from which the print cartridge was
removed.
Turn the printer so that its rear cover faces
you. Lift and pull to remove the optional
duplexer, if it is installed.
CAUTION Do not lift the left end of the
transfer roller too far when removing the
transfer roller.
Use the plastic transfer-roller tool (callout 1)
to
slightly
lift the left end of the metal shaft
upward (callout 2). Slide the transfer roller to
the left and remove it (callout 3).
English English
3

CAUTION Do not touch the replacement
transfer roller with bare hands. Skin oils on
the roller can cause print-quality problems.
Put on the gloves and remove the
replacement transfer roller from the
protective bag.
To replace the tray 1 pickup roller: If an
optional envelope feeder is not installed,
open tray 1 and remove the front accessory
cover.
Make sure that the black collar on the left
side is oriented properly, with the open end
down. Install the new transfer roller by sliding
the right side into place (callout 1). Snap the
left side (with the gear) into place (callout 2).
If an optional envelope feeder is installed,
remove it by pressing the envelope-feeder
release button (callout 1) and pulling outward
on the envelope feeder (callout 2).
Install the print cartridge, and then close the
top cover.
Locate the pickup roller at the center of tray
1.
English English
4

Release the roller by sliding apart the two
latches located on each side at the top of the
pickup roller (callout 1). Lift the roller out of
the opening (callout 2).
To replace the tray 2 feed and separation
rollers: Remove any media in tray 2. Pull
the tray out and slightly lift the front of the
tray up to remove it from the printer. Find the
cover that is located on the tray, next to the
feed roller. Open the cover by rotating it
upward.
Place the new pickup roller onto the shaft
(callout 1). Align the pin that is located on
each side at the bottom of the roller with the
slot in the bracket located on each side of
the opening (callout 2). Slide the roller into
the printer until the roller snaps into place
(callout 3).
Push the blue latch that is on the left side of
the feed roller away from the roller shaft to
unlock the roller. Slide the roller off the shaft.
Insert the front accessory cover
or
the
optional envelope feeder.
Slide a new feed roller onto the shaft. Close
the cover by rotating it downward.
NOTE It is important that this roller locks into
place. If it does not, make sure that the roller
is properly oriented, and that the round,
black spacer next to the roller is properly
positioned around the pin in the shaft.
5

WARNING! Do not allow the front of the
printer to extend beyond the edge of the
table. The printer can become unbalanced
and fall, causing damage or injury.
Move the front of the printer to the edge of
the table top for better access to the feed
roller that is located inside the printer.
Insert tray 2.
NOTE Depending upon which optional
accessories are installed, you might not need
all of the feed rollers included in this kit.
Push the blue latch on the left side of the
feed roller (callout 1) away from the roller
shaft to unlock the roller. Slide the roller off
the shaft (callout 2). You might need to rotate
the roller in order to unlock the latch.
NOTE The tray 2 separation roller is the one
closest to the front of printer. Do not remove
the tray 2 pick-up roller located behind the
separation roller.
To replace the feed rollers in an optional 500-
sheet feeder: To install the feed rollers in an
optional 500-sheet feeder, repeat the tray 2
feed roller installation procedure.
NOTE Depending upon which optional
accessories are installed, you might not need
all of the feed rollers included in this kit.
The HP LaserJet 4250/4350 can have up to
3 optional 500-sheet feeders installed.
Slide a new feed roller onto the shaft and
rotate the roller until it locks into place.
NOTE It is important that the roller locks into
place.
To replace the feed rollers in an optional
1,500-sheet feeder: Push down on the
release lever and open the door of the 1500-
sheet feeder.
English English
6

On the inside of the door, open the small
cover next to the feed roller.
Locate a second feed roller at the top-
center inside the 1,500 sheet feeder.
Push the blue latch that is on the side of the
feed roller away from the roller shaft to
unlock the roller. Slide the roller off the shaft.
Push the blue latch that is on the left side of
the roller (callout 1) away from the roller
shaft to unlock the roller. Slide the roller off
the shaft (callout 2).
NOTE It might be necessary to rotate the
roller in order to unlock the latch. The 1,500-
sheet feeder separation roller is the one
closest to the front of feeder. Do not remove
the 1,500-sheet feeder pick-up roller located
behind the separation roller.
NOTE
Slide the new feed roller onto the shaft.
NOTE It is important that this roller locks into
place. If it does not, make sure that the roller
is properly oriented and that the round, black
spacer next to the roller is properly
positioned around the pin in the shaft.
Slide a new feed roller onto the shaft and
rotate the roller until it locks into place.
NOTE It is important that the roller locks into
place.
7

Replace the paper in the 1,500-sheet
feeder and close the door.
NOTE Depending upon which optional
accessories are installed, you might not need
all of the feed rollers included in this kit.
WARNING! The fuser might be hot. Make
sure that the printer has been turned off for
30 minutes before removing the fuser.
Locate the blue fuser release levers on each
side of the fuser. Pinch the blue levers
upward and pull the fuser straight out of the
printer.
To replace the fuser:
CAUTION When replacing the fuser, the
printer
must be turned off for 30 minutes to
allow the fuser to cool down.
Open the rear output bin and pull the
extension outward until it stops.
Remove the fuser from its protective bag.
Remove the rear output bin and extension
by pushing the left-side hinge toward the
right-side of the printer until the hinge clears
the mounting hole in the printer chassis.
Rotate the left side of the output bin and
extension away from the printer and remove
the output bin and extension.
Push the new fuser firmly into the printer
until the blue levers on both sides click into
place.
English English
8

Install the rear output bin. Insert the right
hinge pin in the hole in the chassis. Push the
left-side of the output bin toward the right-
side of the printer. Slide left hinge into the
printer until the left hinge pin is inserted into
the hole in the chassis. Pull gently on the
output bin to make sure that the hinge pins
are fully inserted.
To finish the installation: Turn the printer
power on. When the message XXXMB
appears on the control-panel display, press
and hold down for several seconds, until
all three control panel lights turn on and
remain on. Press until the NEW
MAINTENANCE KIT message appears on
the display, and then press .
After installing the maintenance kit: Connect
the cables to the rear of the printer.
NOTE There might be additional cables that
were connected to the printer that are not
shown in this illustration. Make sure that you
connect
all of the cables that were previously
connected to the printer.
To verify that installation is complete, print a
configuration page from the control panel.
Press to open the printer menus. Press
to select INFORMATION, and then press
. Press to select PRINT
CONFIGURATION, and then press .
Install the optional duplexer, if it was
removed.
hp LaserJet 4250/4350 series
1
Check that the number of “Pages since last
maintenance” is reset to zero. If the number
is not reset, repeat steps 40 through 42 in
this procedure, or see the support flyer that
came with the printer.
9

if any kit components were improperly
installed or not completely seated, jams can
occur. Verify that the maintenance kit
components are correctly installed.
If you purchased an exchangeable kit, you
can return your old fuser to HP for credit.
Pack the old fuser and other used kit
components in the packing material from the
new kit. Mail the package using the enclosed
label.
English
10