HP Original Toners

Maintenance Kit

Fuser

Spares

HP Laserjet 4350 Series

The LJ4350 series are fast mono laser printers handling A4 / letter page size. The LJ4350 runs at up to 55 pages per minute. Output quality is high with a resolution of 1200 dpi at full engine speed.

The built in processor and memory offloads tasks from PCs quickly, letting users get on with work. The LJ4350n has a 460MHz RISC processor matched by 80MB or 96MB of memory to give performance matching large workgroup needs.

The series is an updated version of the LJ4200 / 4300. The LJ4350 has a faster processor and more memory on the formatter. There is a USB and an IEEE 1284 parallel port making it easy to connect to individual computers. The LJ4350n models have an embedded JetDirect ethernet print server so network models still have two free EIO slots.

The LJ4350s capabilities can be expanded using two Compact Flash slots to add fonts, e-forms, barcode printing, job accounting and secure printing. There are a range of trays, a duplex unit, envelope feeder and stacker / stapler.

Models are:

  • LaserJet 4350 - Q5406A - Base model with 80MB RAM
  • LaserJet 4350n - Q5407A - JetDirect Fast Ethernet and 80MB RAM
  • LaserJet 4350tn - Q5408A - network, 80MB RAM and 500 Sheet Tray 3
  • LaserJet 4350dtn - Q5409A - network, tray, 96MB RAM, duplex
  • LaserJet 4350 dtnsl - Q5410A - network, tray, 96MB RAM, duplex, stacker / stapler.

The options are the same as those used on the LaserJet 4250 which is an almost identical printer but has a slower 45 pages per minute formatter.

LJ4350N has a choice of 2 print cartridges: either a 10,000 or a 20,000 page version. Users can choose economy on the day or in the long term.

Control:

Intuitive layout built around an LCD panel with 4x 20 characters and user friendly graphics prompts. Embedded web server and HP Web Jetadmin software.

Duty Cycle:

250,000 pages per month

is rated at 55 pages per minute for letter sized paper. First page in under 8 seconds.

True 1200 x 1200 dpi with HP Fastres and HP Prores. Smart printing technology makes automatic adjustment and advanced toner gives sharp images.

Paper Handling:

A4, A5 etc. Capacity for a stack of 8 trays with 4,100 sheet capacity.

Tray 1:Multifunction tray for 3x5 to 8.5x14 inch paper (76x127 to 216x355 mm). Capacity up to 100 sheets. Weights 60 to 200gsm. Heavy media may need to use the straight- through path to the face-up tray.

Tray 2:Built in: for standard and some custom paper sizes, A4, A5, letter etc. Up to 500 sheets of 60 to 120 gsm weight.

Tray 3:Either a 500 sheet option: as for Tray 2 or a 1500 sheet option: A4, letter and legal paper with weights of 60 to 120 gsm. A 1500 sheet tray and up to 3 others are allowed giving a total capacity of 3100 sheets. Paper output is normally to a 250 sheet face down unit. There is a 50 sheet face-up tray at the rear for thicker media. A 500 sheet stacker unit or a 500 sheet stacker with a stapler can be added on top of the printer taking the output capacity to 750 + 50 sheets so it can run largely unattended.

Duplex:

on "D" Models. Duplex and envelope feeder units are amongst the options.

One of HP's PDFs shows an LJ4250/4350 on a stack of 5 optional 500 sheet trays and suggests that using the stacking tray up to 8 trays can be used giving a capacity of 4,100 sheets.

Processor:

All 4350 models have a 460MHz RISC processor.

Memory:

The LJ4350 has 80MB memory. The dtn and dtnsl models ship with 96MB of memory. Memory is expandable to 512MB. There are two 100 pin DDR DIMM slots. An optional 20GB hard disk can be fitted in an EIO slot.

Interface:

IEEE 1284 B Parallel and USB 2.0 High Speed. There are 2 x EIO slots

HP PCL5e, HP PCL6, HP-GL/2 and HP PostScript 3 Emulation. Automatic language switching. If there is more than 128MB of RAM the LJ4350 can also do direct PDF printing (V1.3).

System Compatability:

Microsoft Windows 98, Me, NT4, 2000, XP. Apple Mac OS 8.6 to 9.x OS X. Unix, Linux etc.

Power Consumption:

20 watts in powersave, 13 watts in standby. 680 watts printing. It still uses 0.3 watts when off.

Dimensions:

Base model 412x439x366 mm

Consumables:

All-in-one cartridges with toner, developer and drum. Up to 10,000 pages from the LJ4250/4350 standard cartridge Q5942A. Up to 20,000 pages from the LJ4250/4350 high capacity cartridge Q5942X. These are smart cartridges so they warn the user before running out.

Print Cartridge for LJ4250. Black toner Smart cartridge. Yield 10,000 pages - Q5942A

Print Cartridge for LJ4250. Black toner Smart cartridge. Yield 20,000 pages - Q5942X

Fuser:

Q5422-67903 Maintenance Kit for LJ4300 220 Volt. Yield 200,000 pages - Q5422A - Q5422-67903

RM1-1083 Fuser Unit - RM1-1083-090CN - RM1-1083-090CN

Spares:

RL1-0019 Tray 1 Pickup Roller - RL1-0019-000CN

RL1-0007 Tray 1 Separation Pad - RL1-0007-000CN

RM1-0036 Tray 2 Paper Pickup Roller - RM1-0036-020CN

RM1-0037 Tray 2 Paper Feed Roller - RM1-0037-020CN

RM1-0699 Transfer Roller Assy - RM1-0699-020CN

RM1-1088 500 Sheet Paper Tray - RM1-1088-090CN

Q2440-67903 500-Sheet Paper Feeder and Tray/Cassette - Q2440-67903

RM1-0043 Swing Plate Assy - RM1-0043060CN

RM1-1108 DC Controller - RM1-1108-130CN

Q3652-69007 Main Logic Board - Q6505-69010

RM1-1067 Laser Scanner - RM1-1067-030CN

RM1-0026 Paper Delievery Assy - RM1-0026-040CN

RM1-0012 Paper Feed Roller Assy - RM1-0012-020CN

RM1-0034 Paper Pick Up Drive Assy - RM1-0034-070CN

RM1-0056 Paper Pick Up Drive Assy - RM1-0056-070CN

RM1-1110 Transfer Roller - RM1-0699-020CN

Service:

Resetting the maintenance-kit counter (LJ 4250/4350)

The Select Button has a tick-mark.

The Up Arrow button has a black triangular arrow pointing upward.

  • Turn the printer off and then on.
  • When 000MB (the beginning of the memory-count) appears on the control-panel display, press and hold down the select button. Continue holding down the select button until all three printer control panel lights flash once, and then stay on. This might take up to 10 seconds. Release Select when the lights are on.
  • Use the UP ARROW button to scroll to NEW MAINTENANCE KIT.
  • Press Select to reset the maintenance-kit counter.

HP's Service Manual cautions that this reset procedure should not be used to clear the message temporarily. If you do clear the message then remember what long-lived items have not been changed yet

HP's Service Manual gives anticipated lives for long-lasting parts:

  • Fuser life for the 4250 and 4350 is 225,000 pages. The transfer roller is expected to have the same life.
  • The tray 1 Pickup roller has an expected life of 100,000 pages. The tray 1 separation pad life is given as 200,000 pages.
  • The Tray 2 Pickup roller has a life of 225,000 pages. The Feed roller has a life of 225,000 pages.
  • The pickup solenoids are given a life of just 200,000 pages in the service manual. In practice the solenoids often outlive the rollers several times.
  • The Cooling fans are all rated for 40,000 hour, about 5 years of constant on service. Ten years or more of working days and weeks.

Options:

75 Sheet Envelope Feeder - Q2438B

Automatic Duplex Unit - Q2439B

500 Sheet Paper Feeder and Tray - Q2440B

Stacker Accessory - Q2442B

Stacker / Stapler Accessory - Q2443B

1500 Sheet High Capacity Tray - Q2444B

Copyright G & J Huskinson & MindMachine Associates Ltd 2013, 2015. Some pictures derived from HP User and Service guides. These technical pages do not constitute an offer for sale; just our knowledge at the time of writing. See the catalog. Sales pages on this Web site use cookies to store user information. We also use Google Analytics to track site usage patterns.