Question about HP LaserJet 3100 All-In-One Printer

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HP laserjet 3100 service manual

I need a free service manual for the hp laserjet 3100. I was changing the pickup roller and I had the white cable on of the side come unplugged and I can not find where the other end plugs in. Basically I need to plug the buried end of the cable in some how. If you see the diagram/instructions I am looking for in the manual, please let me know where. Thanks

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  • annjustice Apr 01, 2009

    How do you stop the sample page print out (waste so much ink). Unfortunately the plastic printed index card that tells me what each button does, is now missing.

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You can download the manual free from the following link http://www.eserviceinfo.com/downloadsm/18346/HP_Laserjet%203100.html

Posted on Feb 04, 2009

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2 Answers

HP LJ p2015 How do you replaced the feed roller on the 250 sheet tray? It is not in the service manual?


HP LaserJet P2015 Series Printer - Replace the pickup roller (tray 1)
  1. Unplug the power cord from the printer, and allow the printer to cool.
    c00763903.gif
  2. Press the print-cartridge-door button to open the print-cartridge door.
    c00763905.gif
  3. Remove the print cartridge.
    After removing the print cartridge, only handle it on the ends.
  4. Grasping the pickup-roller cover with thumb and forefinger, squeeze the left side of the pickup-roller cover to release the left retaining tab, and then slide the cover to the left and up.
    Failure to slide the cover to the left when removing it can cause the right retaining tab to break.
    c00763906.gif
  5. Press the two black retaining tabs outward until the pickup roller is released from its seat.
    c00763907.gif
  6. Remove the old pickup roller from the printer.
    c00763908.gif
  7. Line up the black retaining tabs in the printer with the grooves in the new pickup roller, and then press the pickup roller into the pickup-roller seat until the retaining tabs click.
    Do not touch the pickup-roller pad.
    c00763909.gif
  8. Grasping the pickup-roller cover with thumb and forefinger, insert the pickup-roller cover's right retaining tab into the retaining slot.
    c00763910.gif
  9. Squeeze the left side of the pickup-roller cover and insert the left retaining tab in the retaining slot.
  10. Close the print-cartridge door.
  11. Plug the printer in.

Jan 29, 2014 | HP LaserJet P2015 Printer

2 Answers

HP 2420n printer


When you put paper, does it recognize that paper is inserted?

Mar 19, 2008 | HP LaserJet 2420n Printer

1 Answer

I have a hp laserjet 4250 printer it had a paper jam in tray 2 i have cleared the jam but it keeps saying i still have the jam in tray 2


There is still paper stuck in the printer. try lifting the printer off of tray 2 to inspect it or here it is straight from the service manual...

Jams in tray 2

Table 7-10 Causes of tray 2 jams

Cause Solution

The feed or separation rollers are dirty, worn, or damaged. Clean the rollers. If they are dirty after cleaning, or if they are

worn or damaged, replace the rollers.

The pickup roller is worn or damaged. Replace the pickup roller.

The tray 2 paper pickup assembly drive gears are damaged

or the assembly is defective.

Check the drive gears in the paper pickup drive assembly.

Replace the pickup drive assembly if the gears are

damaged. See Paper-pickup drive assembly.

The tray 2 pickup solenoid (SL101) is damaged. 1 Disconnect the connector for the tray pickup solenoid

from the dc controller PCA (location J92).

2 Measure the resistance between the cable connectors.

3 If the measured resistance is not approximately

160 ohms for the HP LaserJet 4200/4300, or 110 ohms

for the HP LaserJet 4250/4350, replace the tray 2

pickup solenoid.

The tray 2 lifter-drive assembly or the stack position

sensor (PS107) is defective.

Replace the lifter-drive assembly. See Tray 2 lifter-drive

assembly and/or Printer switches and sensors.

The dc controller PCA is defective. Replace the dc controller PCA. See Dc controller PCA.

Dirty, worn, or deformed pick-up roller, cassette separation

roller, and cassette feed roller.

Clean the rollers if they are dirty. Replace any worn or

deformed rollers. The cassette separation roller and the

cassette feed rollare are to be replaced together.

Damaged gears in the cassette pick-up drive unit. Move the gears in the cassette pick up drive unit. If the

gears are not rotating correctly, or are damaged or worn,
replace the cassette pick-up drive unit.

Dec 25, 2010 | HP LaserJet 4250 Printer

1 Answer

Adf jam hp laserjet 3055


Here is a link to view or download the Service/Repair Manual. It details how to tear the whole thing apart if you need to.
Laserjet 3055

Sep 17, 2009 | HP LaserJet 3055 All-In-One Printer

2 Answers

Paper won't feed


More than likely you pickup roller is dirty.

You can try to clean to see if that helps.

If that fails, then replace the pickup roller.

Below is a service manual that will show you how to remove and clean the pickup roller and how to replace it if necessary.

LJ1020 Service Manual

  • Pickup roller RL1-0266-000CN 50,000 pages Affects paper pickup

Sep 04, 2009 | HP LaserJet 1020 Printer

1 Answer

I had a zip lock bag inadvertantly get sucked up into the printer. I can't get it off the roller. How do I remove the roller cover?? This thing seems welded together?? :) Any help would be appreciated....


Here are instructions for cleaning the pickup roller that I found on your printers maintanence manual. Hope it helps. (If you need diagrams to go along with the instructions, here is the link to the manual.)

http://www.partshere.com/Models/Q5911A/LJ_1010_1012_1015_1020Maintenance.PDF

Cleaning the pickup roller
If you want to clean the pickup roller rather than replace it, use the following instructions.
Remove the pickup roller as described below.

1 Turn off the printer, unplug and remove the power cord. Wait for the printer to cool.
2 Open the print-cartridge door, and remove the print cartridge (HP LJ 1010 series printer shown).
3 Locate the pickup roller
4 Gently release the small, white tabs on each side of the pickup roller by pushing them away from
the roller, and then rotate the pickup roller toward the front.
CAUTION Use gentle pressure to release the small, white tabs to avoid breaking them.
5 Gently pull the pickup roller up and out.
6 Position the new pickup roller in the slot of the previous pickup roller.
NOTE Circular and rectangular pegs on each side prevent you from incorrectly positioning
the pickup roller.
7 Rotate the top of the new pickup roller into position until the white tabs on each side of the roller snap the roller into place.
8 Reinstall the print cartridge, and close the print-cartridge door.
9 Plug in the printer, and then turn it on.

With the roller outside the printer, use the following steps to complete the cleaning.
1 Dampen a lint-free cloth with water and scrub the roller.
2 Using a dry, lint-free cloth, wipe the pickup roller to remove loosened dirt.
3 Allow the pickup roller to dry completely before you reinstall it in the printer. To reinstall the pickup
roller, see steps 6 through 9 of

Jul 29, 2009 | HP LaserJet 1020 Printer

1 Answer

Replacing paper pickup roller


on both sides of pickup rollers there are white bushings rotate the white bushings towards you
Remove the left-side bushing by sliding the bushing to the left.
Slide the roller and shaft toward the left until they clear the hole in the right-side bushing, and
then lift the right end of the shaft.
Slide the roller and shaft toward the right and lift the roller and shaft together out of the printer.

install your new roller then reverse this process to reinstall

Oct 21, 2008 | HP LaserJet 2430n Printer

2 Answers

HP 2420n


Hey there. here is a link with the service manual.
If U can't find how, ask me.

http://www.qhaclaims.com/ftp/TEMP/LaserJet%202410%202420%20and%202430%20SM.pdf

Mar 19, 2008 | HP LaserJet 2420n Printer

2 Answers

Proper Manual cleaning


 

 

Hi Gidget,

I typically use "Chux" wipes and a shop-vac to start with. The wipes wipe up and REALLY HOLD the toner & paper particles, holds 'em tighter than a Hobo does a ham sandwich...

 

(I'll concede to the 'by-the-book' crowd that a specific (read EXPEN$IVE) type of vacuum cleaner is recommended by HP & most other service org's. I've used my shop-vac for 12+ years and have serviced thousands of HP LJ's, CLJ's, AiO's, MFM's, DJ's, OJ's, etc. I have never lost a single printer because I didn't use the 'right' type of vacuum...)

 

The Chux wipes are available from PartsNow, LLC; www.partsnow.com/.

They also carry maint kits for almost every HP printer made as well as Lexmark, Canon, Xerox, etc.

 

I use Cooper's Platen Cleaner (PartsNow) to clean the rollers using 2" x 2" gauze squares and nitrile gloves. Fedron works well too. HP's website mentions isopropyl alcohol and water as their recommended solvents. Use waht works best for you.

 

Having some 6-inch long cotton tipped applicators (wooden handled single ended Q-Tips...) helps tremendously.

 

In conjunction with the correct service manual, (in your case,  Combined Service Manual for HP LaserJet 4L / ML & 4P / MPHP Publication Number C2005-90988, August 1993), a thorough cleaning is very easy for almost anyone to perform.

 

PartsNow and several other websites have HP Svc Man's online for free, Google around.

 

A legacy utility from HP that I've not yet tried can print and cycle cleaning sheets to clean mainly the fuser, but also claims to clean rollers as well. HP printer specialists will recognize 'cleaning sheets' from HP's newer models, built in to the menu structure. The utility will allow you to do the same for older (LJ 4, 5, & 6) printers. Find it at:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=25484&prodTypeId=18972&prodSeriesId=25484&objectID=bpl03846

 

Another Combined Svc Man is available as well that covers:

HP LaserJet 4 / 4M
(C2001A / C2021A)
HP LaserJet 4 Plus / 4M Plus
(C2037A / C2039A)
HP LaserJet 5 / 5M / 5N
(C3916A / C3917A / C3952A)

HP Publication Number C3916-90984 (March 1996).

 

As far as Scheduled cleaning, the cleverly formatted (LOL) table below lists HP's recommended service intervals. Over the years, I've found that adhering to the schedule has reduced unplanned downtime by almost 80%!!

 

DESCRIPTION / QTY / EST. LIFE (pages) / REMARKS  
1.  Toner Cartridge / 1 / 6800 (note 1) / When print becomes faint, shake cartridge to distribute remaining toner.  


2.  MP (Tray 1) Pickup Roller Assembly / 1 / 200,000 / Replace roller and separation pad together.  


3.  PC (Tray 2) Pickup Roller / 1 / 200,000 / Look for glazing and cracks.  


4.  Separation Pad / 1 / 200,000 / Look for glazing and grooves. Replace together with Pickup Rollers.  


5.  Transfer Charging Roller / 1 / 200,000 / May affect print quality and/or paper jams.  


6.  Fuser Assembly (115 V, 50/60 Hz) / 1 / 200,000 / May affect print quality and/or paper jams. Look for marks on rollers.

  
6a. Fuser Assembly (220 V, 50 Hz) / 1 / 200,000  


7.  LC (Tray 3) Pickup Roller / 1 / 200,000 / Look for glazing and grooves. Replace the Separation Pad.  


8.  Exhaust Fan / 1 / 25,000 hrs. (I've only had to replace one in 12 yrs...) 


Note 1: The estimated Toner Cartridge life is based on A4 or letter size prints with an average of 5% toner coverage, and with the density setting at 3.  

 

Best of luck,

Foxfur

Oct 16, 2007 | HP LaserJet 4 plus Printer

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