Question about HP LaserJet 4si Printer

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HP LJ4si picks paper late.

Even with new pickup rollers. Have three, all have developed the same problem. Reports an internal jam because it doesn't sense the paper. Will pick 5-10 pages just fine, then one will be off a little but not enough to stop the printer. Next 3 or 4 might be fine. At some point a page will be at least a half inch off and the printer will stop. Once the problem starts, the it might occur every 3 or 4 pages.

Acts like a switch or sensor is bad. Or maybe something wrong on a controller board which tells the printer when to pick the paper?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: HP Laser Jet 4L Printer Model #C2003

Try lowering the toner density using the printing software or the printer menu.

Posted on Feb 07, 2008

checkitright
  • 1362 Answers

SOURCE: My HP LaserJet 2430dtn Paper jam

Try this, make a print from the by-pass tray, does it go OK or jam??
If it jams then there is a problem with the paper feed from the tray.
If it jams then
1-check the drum and see if there is an image on it( you can put a mark on the edge to see if it's rotating, thus eliminating the drum unit)
2-same for the reg roller
3-check for labels ar foreign objects

Posted on Oct 10, 2008

SOURCE: HP laserjet 4L paper jam after printing one page.

You need the pick up rollers replaced. Call your service centre to replace pick rollers as these are feeding the pages crocked

Posted on Aug 31, 2009

Salim Baig
  • 281 Answers

SOURCE: HP P3005DN Tray 2 pickup

Hi

This is a problem with the Pickup roller.

Try to inspect the paper pickup roller, on the right side of the roller you can find a small notch which gets coupled with the shaft it will be broken. You have to replace the roller.

Regards

Posted on Jul 15, 2011

vinay229229
  • 1121 Answers

SOURCE: HP 4100dtn Tray 2 picks the paper NON-STOP?

Step 1:Check with another cartridge
Step 2:Switch off the printer take out tray 2 casette, swich on the machine check while intializing the printer tray 2 pick up roller rotating?.. If its rotating check solnoid which is located right side under the main moto assembly, clean the solnoid as shown in the anap shot..fix it back.
Step 3:Open right ,left & top covers.., close cartridge access door check is it driving the laser scanner shutter?, if not check the sccess door knotch broken/bend.
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Posted on Nov 20, 2011

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1 Answer

Pick up roller rotates twice even if when gives single page print command and creates paper jam.


I do not know for sure on the Samsung but on HP's this problem is often caused by the pickup solenoid sticking. There is usually a foam bumper on the pickup solenoid which breaks down over time and then the adhesive stops the solenoid from releasing properly. You can clean it off all the old foam and adhesive and run without it, just make printer a little noisier. The solenoid will usually be on the right side.

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I have an HP CP2025 and when it goes to print it says there is a jam in tray 2 but there are no papers stuck, no debris, nothing. It just tries three times to pick up paper and then says there is a jam....


Hello,

This is called a phantom paper jam and is caused by the printer not being able to grab the paper and feed it into the paper path to print on. There are paper pickup rollers right above the paper tray and when they get worn down they can not grip the paper so they slip. The printer thinks the paper is jammed because it never arrived in the printer. These rollers are user replaceable and come in a kit called RK-CP2025, they are available here:
http://www.ccl-la.com/catalog/product_info.php?products_id=318
I hope this helps,
BuddyMc

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1 Answer

Hp laserjet m3035 mfp does not take up the paper squeaks and reports paper jam - no papaer is jammed


Hello,

The most common cause of this type of Phantom paper jam is worn pickup rollers and separation pads in the paper trays. When these rollers get worn the gripping surface can not grab the paper correctly so no paper is fed into the printer and the printer gives the paper jam error. The rollers are very easy to replace, it takes about 20 minutes total. Here is a link to more information about the roller maint kit:

www.ccl-la.com/catalog/product_info.php?products_id=172

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1 Answer

HP LJ 2420 wont pickup paper from tray 2


Replace try2 paper pick up roller..

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I have an hp p3005 with the jam code 13.01.00. It has had the feed rollers and sep pads replaced. When it runs it appears to catch on the separation pad itself since it shows a small buckle in the middle...


Replaced seperation pad?. separation pad work is to block multiple paper feeding,but in yourcase paper not at all feeding means paper pickup roller not picking up the papers.replace both 2 & 3 paper pickup rollers..
See the snap shot,view from under.
Pickup roller( red)
Un lock to remove pick up roller(blue),observe the angle of the roller & same way insert new one other wise it wont fix..
Bee care full while removing roller, paper sensor flag should not distubed(yellow)
bee pateince dont do harsh..best of luck.


10_14_2011_2_48_48_am.jpg

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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.

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2 Answers

Front & Back copies, paper has jammed cadrej side some time only.


You need to replace not only the pickup roller but all three paper roller: Pickup, Feed, Separation.

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1 Answer

My laserjet 1020 develops a paper jam after printing the first page of a multipage print instruction .I have deleted the printer and re-installed it including all drivers but problem still...


Hi,
Reinstalling the printer is related the Software.
If the paper gets physically jammed than its the driver setting issue or hardware issue.
Check if two sheets get jammed or only one sheet.
If it is two sheets than printer is picking up multiple sheets and paper gets jammed.
If the printer is jamming a single sheet than remove the Tray and look there is rubber roller inside if there are marks or lines on that rubber roller or if the roller roller is worn out than that rubber roller called as paper pickup roller need to be replaced.
If that looks fine than try to priny using manual feed and if the problem persists from manual feed too than try another toner cartridge
If the problem is not from Manual feed Tray that Replace the main Tray with known good Tray and check if the issue resolved.

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1 Answer

Ricoh Aficio C410 bypass tray not picking up and reporting jam


This is happening to me also. The rollers sound like they're turning, but the paper doesn't advance. I then go into th emachine and spin the roller cam a bit and it seems to clear the problem. Any idea what's happening?

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HP Laserjet 2420- Late Paper Jam


1) Your paper tray may be too full, makes it heavy to lift and not enough pressure for the pick up roller.
2) Pick up roller is slippery, wipe it clean with alcohol to make it abbrasive.

Apr 15, 2008 | HP LaserJet 2420 Printer

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