HP LaserJet 4

How to Identify and Fix Common Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced technical support :

The Manual Feed message appears when Manual is chosen as the paper source in the printer driver and there is no paper in the manual feed slot.
If roll paper does not feed, cut the end straight across and uncurl it by rolling it backward, if necessary. Then reload the paper. If thick media does not feed, make sure you are loading it straight into the product, not at an angle. If paper jams when you print on both sides of the paper, try loading fewer sheets.
Using both hands, put one piece of paper in the manual feed slot until the front edge of the paper touches the paper feed roller. Once the machine has grasped the paper, let go. The side to be printed should be faced up. The machine will hold the paper in place until the print data is sent to the machine.
Click: `Open the HP Photosmart Toolbox` or: `Service this device` Click: Device Services tab. Click: Calibrate the Device or Clean the Print Cartridges or Align the printer. Follow the instruction which will appear on-screen.
Manual feeding means feeding wherein the material or part being processed is handled by the operator on each stroke of the press.
Dust, paper fiber, and other debris might accumulate on the pick rollers and cause paper feed issues. To help prevent paper feed issues, clean the rollers inside the printer and in the duplexer (if equipped). If the other steps in this document fail to resolve the issue, then reset the printer.
Adjust the paper guides in the tray to match the size of the paper. Remove the paper, smooth it out, then reload it. If the paper misfeeds, do not use that paper. Remove the moist paper, then replace it with new, dry paper.
If your laser printer is skipping or missing lines, this is normally caused when seals haven`t been removed correctly. It can also occur when there is damage to the toner, drum unit, or damage to the fuser unit.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP Laserjet 6MP wont feed paper
ANSWER : I had a similar paper pickup problem on laserjet 6mp. The printer would go through start-up sequence fine but when it received a print job you could here the main gears/rollers turning but no clicking from paper pickup solenoid, then eventually error lights would come one . I incorrectly assumed it was an error with the paper pickup mechanism and wasted a whole day taking the printer apart and replacing the paper pick mechanism. Long story short, if I had bothered to figure out the secondary error light codes from the start, I would have realized it was just a bad fuser and would not have wasted so much time.

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HP LaserJet 4

HP 2200 – Won't feed paper and squeals
ANSWER : My suggestion: laser mirror motor has dry bearing (the squeal) and the printer won’t feed paper until it gets up to speed. Someplace on fixyourownprinter is an article explaining how to get to the motor & put a drop of TriFlow Synthetic PTFE oil on it. Worked for me…

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HP LaserJet 4

Paper Feed Problem on HP R80
ANSWER : In the last examination it is our origination of death which chooses our responses to all the inquiries life puts to us. The most pleasant spot to be is in somebody’s idea; the most secure spot to be is in somebody’s petitions.

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HP LaserJet 4

HP laser jet 3015 "Upgrade Error Call HP Support"
ANSWER : rgtr

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HP LaserJet 4

HP DeskJet 722C Paper Feed Problem
ANSWER : Detach the force string from the holding nothing back one and expel all paper from it.

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HP LaserJet 4

Service manual for an HP Laserjet 4250 (or 4250n)
ANSWER : Hello all,Can someone please tell me where to find service manual for a 4250 or 4250n printer?I used Google, Fileshare.eshop.bg, peer-to-peer, but with no avail …Thanks alot for your answers!

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HP LaserJet 4

LaserJet 4 won't Power Up
ANSWER : I haven’t seen that particular behavior on that model. It either works or it doesn’t. My first choice would be the power supply.

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HP LaserJet 4

HP PSC 1210 Service Manual?
ANSWER : Hi Abe,

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HP LaserJet 4