Question about HP LaserJet 1200 Printer

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HP Laserjet 1200 pickup gear assembly

I have disconnected the two gears that has a spring attached and now I can't get it to stay in place. The printer can make a full rotation around and then the area on the gear that is flat, the selnoid catches on the first tooth and won't release so it can go into the next rotation,

I would appreciate any help you could give me: Fitness36@yahoo.com

Thank you

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  • slk13 Aug 28, 2008

    same problem. I think that without the tension spring inside the pickup gear assembly (Part RG0-120-000CN) number 6 on your diagram, the gear won't engage.



    The solenoid clip (which prevents a second page going through) wont release it (this is normal behavior), but the tension spring you are not able to put back in place would normally push on the outer gear of the two parts of the gear assembly, allowing it to engage for the second piece of paper to be picked up.



    I'm trying to find a replacement spring, as I lost mine trying to relocate it in between the two parts of the gear assembly (inner wheel and outer wheel). I might have to order the gear assembly as a complete unit, because I'm not sure how they get that little spring to stay perfectly in place.



    Good luck!!!

  • Dave MacPhee
    Dave MacPhee May 11, 2010

    Where is the area that is flat ending up when it gets stuck?

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1 Suggested Answer

Psionics
  • 236 Answers

SOURCE: Laserjet 1200

Where is the area that is flat ending up when it gets stuck?

Also, what repair was made on this printer? DId you take out the motor at all?

Also, if you removed the side panel.. is the clutch correctly placed? And is the spring in there?

Also, be sure to align the clutch on the pickup roller shaft with the follower (large plastic tab) (callout 2) on the paper lift plate

Posted on Apr 10, 2008

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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

Paper won't pick up, printer makes grinding noise


Hello,

The problem you are discribing is caused by a broken gear on the drive motor. The small gear cracks after years of printing and will jam the pickup assembly, the sound you hear is the motor trying to force the gear assembly to turn. We have a repair kit with the gear and instructions available for $12.95 including shipping if you want to do the repair yourself. The job should take about 30-45 minutes even if you are not a printer tech. I hope this helps.

Buddy@ccl-la.com
Corporate Computer
www.ccl-la.com
Over 21 years of PC and printer support/repair.

Jun 26, 2009 | HP LaserJet 4L Printer

3 Answers

My HP laserjet 1200 is making a terrible noise when printing - do you have to oil the rollers?


No Please don't oil any part of the printer, oiling may damage the complete printer first check if the nopise is coming from rear, Top, Front or side.
If noise is coming from Top than possibly top outbin roller are making noise.
If side tham may be toner cartridge or cartridge motor is making.
If noise is coming from rear than either fuser or the gear which rotates the fuser are making noise.
If noise is coming from from than Tray 2 pickup assembly or faulty tray is making noise possibly faulty registration assembly can also mak noise none of the part should be oiled only the faulty part should be replaced.

May 11, 2009 | HP LaserJet 1200 Printer

1 Answer

13 Paper Jam - but there is no paper inside!


I have a long solution (possibly) to your issue:

Error 13 Paper Jam
  • Paper jams can occur in 3 places: Entry, registration and exit.
  • If the paper isn't picking up out of the paper tray, visually inspect the pickup roller. If it looks shiny, replace it. You should also replace the separation pad as they work together. On the 4L/4P/5P/6P the pickup roller has a plastic shaft that breaks. You'll have to replace the whole pickup assembly. This requires major disassembly of the printer. Check our printer repair kits for your model printer. If you don't see it listed, email us.
  • If you have an HP 4/4+/5 with an optional 500 sheet feeder that's jamming, check the balance knob adjustment. Center it with a full **** of paper for proper operation.
  • If the paper is jamming at registration or anywhere between pickup and exit it could be a number of things. Check the paper path for torn bits of paper or label residue. On the II/III series, remove the metal registration guide plate (2 screws) and check underneath it. If the pickup rollers are moderately worn, the paper will stop just short of the registration roller. On the 4L/4P/5P/6P remove the screw holding the oblique roller assembly (Inside front of printer) and pull out and inspect the assembly and the area under it. On the HP 4/4+/5 pivot up the metal plate and check underneath it. Check the roller assembly on the left side for torn scraps of paper (a flashlight or torch is necessary).
  • Make sure paper cassettes are firmly seated, corner tabs aren't bent. Some trays have lifting springs that could pop out if tray has been dropped.
  • On HP IIP/IIP+/IIIP printers if the paper scrunches up at the toner cartridge you'll need our Inside Accordion Jam Repair Kit.
  • Check your software settings in the program you are attempting to print from. Do you have the correct paper size specified? If you have a different paper size than what is in the tray, you'll get a paper jam.
  • Exit jams are frequently caused by exit sensors. These sensors are typically mounted on the fuser assembly or adjacent to it. They are plastic arms that block and unblock an optical sensor. The arms can get stuck or knocked out of place when clearing paper jams. The optical sensors can also get dirt blocking the photo cell. Clean the sensor and check for free movement and proper installation of the sensor arms.
  • On HP II/III series exit jams are mostly caused by worn gears. The best way to troubleshoot this is to defeat the door interlock (see door interlock photo on troubleshooting page). Press down on the arm on the top right of the fuser. Initiate a test page. While holding down the arm, press one of the metal cartridge detect switches just below the door interlock. Watch the movement of the gears. You will get a 51 error because the door is open. Recycle power to get rid of error. There is an arm gear on the lower right of the fuser that can shed teeth. There is also a 14 tooth gear below the large gear on top of the fuser. You can also manually rotate the large gear and check for binding or crunching. If that happens, then replace the 14 tooth gear. On the door, there are some delivery coupler gears that mate with the fuser and drive the exit roller. Check the gears for excessive wear. Replace if necessary. If the paper gets almost all the way out and jams, replace the exit roller or the exit roller assembly. If the error occurs after fuser replacement, check and see if the connector on the left of the fuser is properly mated with the one in the printer.
  • On HP IIP/IIP+/IIIP printers if the paper has accordion folds on the bottom and jams on exit, order our Top Output Accordion Jam Repair Kit.
  • On HP 4/4+/5 printers the most common cause of exit jams is the exit assembly. Order our 4/4+/5 Exit Jam Repair Kit. Exit jams in the fuser can be caused by a broken fuser drive gear or a broken gear on the fuser. Remove the fuser and check the gear inside the printer for broken teeth. Manually turn the gears on the fuser and check for smooth operation. Check the paper exit sensor arm for proper mounting and free movement.
  • Check to make sure the rear door is closed on the printer. Open doors can cause 13 paper jam indications.
  • On the 5L/6L check the registration sensor arm below the pickup roller. Also check the exit sensor arm (bottom center of the fuser). These arms frequently get stuck or dislodged clearing paper jams. On these printers, if you are experiencing frequent paper jams, order our 5L/6L Multi-Sheet/No Feed Repair Kit
All this comes from:

http://www.fixyourownprinter.com/reference/errorcodes/hp

Good luck with it, I love the HP LaserJet 4 series of printers. I used to warm my coffee on the top of the fuser when I was doing large print jobs :-)

If this information helps, please give me a rating, thanks!

OpenSource13

Apr 07, 2009 | HP LaserJet 4 plus Printer

1 Answer

Paper pickup in tray 2 not working


This is an issue i've seen many times.

The gear that drives the lower tray barely conacts the gear in the main body.

You cannot buy just the gears, you will have to buy a new option cassette assembly.

If you lift the printer off of the lower cassette you'll see the suspect gears.

Dec 19, 2008 | HP LaserJet P2015dn Printer

1 Answer

HP Laserjet 4100 series , paper jam output tray.( on top of the printer ). The roller under the topcover is turning the wrong way. The paper can't get out of the printer, and jams between the upper roller...


Hi F_bulsara,
First thing to try is to flip the paper over in the input tray. There are 2 sides to paper. One side may curl a bit too much due to heat of the fuser and get caught near the output rollers.

Unless the Output Assembly was assembled wrong, it is impossible for the rollers to turn the wrong way. The gear in the fuser drives the output assembly. The top rollers are rolling out.
If the rollers are not rolling, then one of the gears must be broken or missing. The output rolllers might need cleaning.

Next check the fuser unit. Disconnect power to printer and turn printer round. Remove the back output tray and the two small covers (left and right). Undo the 2 screws that hold the fuser in place. Pull the fuser out. Check the gears on side of the fuser. A broken gear in the fuser could cause this problem.

S88

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1 Answer

88 toyota 4wheel dr. shifter asembly


true you have a locking pin that hold it in gear ..or your thrw ouit bearing could be bad ..or the spring you were talking about is lost its strength..

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1 Answer

Continuous Paper Pick Up


Paper pickup solenoid plunger out of position remove covers locate solenoid on the right hand side of machine as looking from behind( Could be the other side as not got machine in front of me) and check that the plunger is in its correct position. If not refit replace covers and check.

Note sometimes the plunger falls to the bottom of the printer loosing the tension spring. What causes the problem you have is that the plunger does not lock the pickup gear into position and the engine drives that pickup gear all the time causing to pickup paper all the time.

Thanks Jason

Jun 05, 2008 | HP LaserJet 1200 Printer

6 Answers

Hp laserjet 4250n paper jam in 13.01.00


According to the manual: "A 13.01.00 error message indicates that the media did not arrive at the pre-feed sensor (PS102) within the specified time." That usually means that the rollers fail to pickup the paper from Tray 2. Usually, cleaning the paper feed roller in the 500 sheet tray should fix this. While blowing out dust, you may have coated this roller with paper dust. A quick way to double check this is to power cycle the printer & try to print from Tray 1, the MP feeder tray (unless Tray1 has rarely or never been used...it might be a little tempermental as well). Regardless, this error is very common & is usually fixed by cleaning. Depending on usage, this roller is considered a customer replacable item (Part # RM1-0037-000CN) with a life expectancy of more than 200,000 pages. There are 3 of that type roller in the printer, but the one in the tray is usually the 1st one to fail. Hope this helps!

Jun 02, 2008 | Office Equipment & Supplies

1 Answer

Laserjet 1200


Where is the area that is flat ending up when it gets stuck?

Also, what repair was made on this printer? DId you take out the motor at all?

Also, if you removed the side panel.. is the clutch correctly placed? And is the spring in there?

Also, be sure to align the clutch on the pickup roller shaft with the follower (large plastic tab) (callout 2) on the paper lift plate

Apr 07, 2008 | HP LaserJet 1200 Printer

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