After printing first page second page printing becomes jammed every time and then I have to free jam manually

Sounds like you need to adjust the paper thickness.
Here is the manual:
https://content.etilize.com/User-Manual/1018267948.pdf

IF THIS PROBLEM IS PERSISTING THEN YOU WILL HAVE TO OPEN THE PRINTER AND LOOK FOR ANY KIND OF PAPER BITS STUCK TO THE CORNERS OF THE PRINTER FROM INSIDE

check the wheels that pick it from the tray.
If they feel smooth, try to put some tape on them and rip it back off.
This cleans the wheels. Also try a new pack of paper and check if it\'s set to plain paper and not to heavier or coated paper

The paper feed solenoid is sticking. There is a foam material that deteriates over time and becomes sticky. I remove what's left and put masking tape in its place.

I literally just fixed the same problem in my 2530DL.

Look at section 6.3.23 in this service manual for a nearly identical model http://printer.konicaminolta.com/drivers/other/Manuals/24_25/fs_2400s.pdf and notice the "Precaution for Reinstallation"

This Registration Roller Solenoid is an electromagnet-activated lever which controls the timing of the page's movement through the printer.
The manual notes that the space between the "flapper" and gear is critical for proper timing. In my case, the tiny foam pad at the bottom end of the flapper had apparently become compressed over time, resulting in the spacing going out of tolerance.

I removed the foam pad and replaced it with layers of electrical tape, adding layers until I found the thickness needed to make the printer work correctly (6 to 8 layers). Then I removed the tape and glued in a piece of hard rubber of the same thickness. (Tape is only a temporary measure as it can compress or become sticky after a while.) Everything is back to normal now!

Good luck!

Jams

Clearing jams

CAUTION Do not use sharp objects, such as tweezers or needle nose pliers, to remove jams.
Damage caused by sharp objects will not be covered by the warranty.

CAUTION Always pull jammed media in the direction it would travel through the paper path.
Do not pull jammed media against the direction of travel through the paper path to avoid damage
to the printer.

To prevent damage to the printer when clearing jams, including jams in the output bin, always open the
print-cartridge door and remove the print cartridge. Keep the door open and the cartridge out until the
jam has been cleared. Opening the print-cartridge door and removing the print cartridge relieves tension
on the printer rollers, which prevents damage to the printer and makes the removal of jammed pages
easier.

Occasionally, media becomes jammed during a print job. You are notified of a media jam by an error
from the software and the printer control panel lights. See Control-panel lights (HP LaserJet 1010 series
printers) on page 102 or Control-panel lights (HP LaserJet 1020 printer) on page 106.

The following are some of the causes of media jams:

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The input trays are loaded improperly or are too full. See Loading media on page 25.

NOTE When you add new media, always remove all of the media from the input tray and
straighten the stack of new media. This helps prevent multiple sheets of media from feeding
through the printer at one time, reducing media jams.

The media does not meet HP specifications. See Media specifications on page 21.

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Typical media jam locations

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Print cartridge area: See Removing a jammed page on page 43.

Input tray area: If the page is still sticking out of the input tray, gently try to remove it from the input
tray without tearing the page. If you feel resistance, see Removing a jammed page on page 43.

Output path: If the page is sticking out of the output bin, see Removing a jammed page


NOTE There might be loose toner in the printer after a media jam. This toner clears up after
a few sheets are printed.

Removing a jammed page

Use the procedures in this section to remove a jam.

CAUTION Media jams might result in loose toner on the page. If you get any toner on your
clothes, wash them in cold water. Hot water will permanently set the toner into the fabric.


Partshere Troubleshooting

CAUTION To prevent damage to the printer when clearing jams, including jams in the output
bin, always open the print cartridge door and remove the print cartridge.

To prevent damage to the print cartridge, minimize its exposure to direct light. Cover the print
cartridge with a sheet of paper.

NOTE The following illustrations show the HP LaserJet 1020 printer. The same procedure is
used to remove a jam in the HP LaserJet 1010 series printers.

1

Open the print cartridge door, and remove the print cartridge.

2

Grasp the middle edge of the side of the media that is most visible, and carefully pull it free from
the printer.

CAUTION Do not use sharp objects, such as tweezers or needle nose pliers, to remove
jams. Damage caused by sharp objects will not be covered by the warranty.

CAUTION Always pull jammed media in the direction it would travel through the paper path.
Do not forcefully pull jammed media against the direction of travel through the paper path to
avoid damage to the printer.


3

When you have removed the jammed media, replace the print cartridge, and close the print cartridge
door.

After clearing a media jam, you might need to turn the printer off then on again.

NOTE When you add new media, remove all of the media from the input tray and straighten
the stack of new media.

print cartrige cradle is stuck clear jam then press ok in hpphotosmart 7550

try this link look on page #115 http://h10032.www1.hp.com/ctg/Manual/c00461378.pdf

try a test page..and see if that flows..

How do you put the paper in?It must either be the paper or the paper feed system.