BLACK STRIP ON THE LEFT SIDE ON MY PAPER??? I HAVE A HP LASERJET 1022NW....WE HAVE CLEANED AND BLEW OUT THE PRINTER....STILL NO IMPROVEMENT....WHAT TO DO NEXT....

I forget the terminology but I believe there's either dirt or a sheet of paper on an internal roller.

You might try here for HP help.

Dipend of a kind of black line, it could be a broken fuser film on the left side of the upper fuser roller.

Run cleaning page until excess ink is cleaned. Dont let cartrages run below 7 percent CK paper type settings

Fuser sleeve is contaminated and needs replacing - cheaper to replace the printer.

try
username: admin, sysadmin, sysadm, administrator
password: admin, blank, sysadmin, sysadm

Hi ,
try the following link:
http://tinyurl.com/dyz9bj
or else here is the price list:
HP 12A (Q2612A) Compatible 2,200 Yield Black Toner Cartridge - HP LaserJet 1012, 1018, 1020, 1022, 1022N, 1022NW, 3050, M1319F 
Price: $24.99
Sale Price: $24.99 Quantity: 
3-PACK HP 12A (Q2612A) Compatible 2,200 Yield Black Toner Cartridge - HP LaserJet 1012, 1018, 1020, 1022, 1022N, 1022NW, 3050, 3052, 3055, M1319F 
Price: $62.99
Sale Price: $62.99 Quantity: 
HP 12A (Q2612A) OEM Original 2,000 Yield Black Toner Cartridge - HP LaserJet 1012, 1018, 1020, 1022, 1022N, 1022NW, 3050, 3052, 3055, M1319F
Sale Price: $72.99

simple, the printer needs servicing as the gears which forwards the paper out from the left side r getting blocked somewhere.and the gears needs to be cleaned.

Ramana is the black stripe just showing up on copies or faxes or does the stripe occur when you are printing from your computer. If the stripe only occurs when copying or faxing then more than likely the scanner glass is dirty. White out liquid on the scanner glass is a common.If it happens when printing fromyour pc, the problem will be in the toner cartridge or the fusing assembly.
Change the cartridge first to see if it goes away. Check the scanner glass, especially the small glass strip on the left side of the scanner or the right side where you place the original paper. These areas should be completely clear and clean of any scratches or smudges.
Last is the fusing assembly. If you tried everything else and theline continues to bother you, the fusing assembly sleve is probably torn. This would have to be replaced. The part number is RM1-0865-040CN.

tray to clean the leans reflectors

take out cartridge and look at roller on bottom of printer, clean with clean cloth and try, also there is a slit ( or hole on the inside ( put your hand inside and try to touch the top of printer there is a hole there where the images go to the laser clean with clean lint free cloth.