There are some black rectangles on a printed document by okipage 14ex printer, please advise how to solve the problem.

My computer detected printer offline. I have just used to print some documents. So, please advise what is the problem.

Oki Data Americas, Inc., today introduced the ultra-compact OKIPAGE 8z Digital LED printer, a high-performance, practical alternative to inkjets for personal, business-class printing. The OKIPAGE 8z is the ideal printer for any desktop -- in your corporate office, your home office, Classroom or dorm.

With a suggested retail price of $249.00 and sharp 600 dpi-class output, the OKIPAGE 8z is an 8 page-per-minute (PPM) digital LED monochrome page printer designed for business professionals.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

What OS? you may find it here:
http://www.nodevice.com/driver/company/OKI/page10.html

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

error 72 is a fuser thermistor error. Either the lamp inside your fusing unit is blown or thermistor has failed. So it wll need a new fusing unit. They are pretty expensive to buy new but you can can reco'd ones for a fraction of the cost... cheers.

please your printer is off and some time after start printer and your computer in job is again print aply.

no it means you have a wrong software for the operting system, not the printer. the latest driver may not be the correct one.

Agreed. The printer would appear to be holding this job. Have seen this on much newer kit but there is no way of deleting it. Even if you reset the eeprom that data will not be cleared. The only fix is a new main board and that's well obsolete. So unfortunately that's really the end of the printer. Wish I could of been of more help. one thought though have to tried it on another pc? If its the same then yes its the printer but if no then you need to delete everything in c:\windows\system32\spool\PRINTERS then Delete all of the .SPL and SHD files you find in this folder (do not delete the PRINTERS folder, just its contents)
Good luck

fault with the fusing unit

try changing the fuse

see
http://ezinearticles.com/?Xerox,-Okidata-Error-Codes-and-How-to-Fix-Them&id=1053652

Try uninstalling then re-installing the printer drivers.

Maybe you won't be able to use A4 paper, which I think is 3/4 inch longer than letter-size 8 1/2 x 11, according to the sizing inside the paper tray of my OKIPAGE 10e. My computer, using Windows 98, doesn't list OKIPAGE 10e among the printers I can use with my computer. Yet, Windows 98 has incorrectly identified my printer as Okidata OL-600e for some reason. I'm surprised my printer works at all with Windows 98. Thanks for detailing your question as "when I print a test page (from the printer controls), because I was unaware I could print a test page using printer controls, so I started pressing anything that looked like an electronic button on the top of my printer. I believe this trial and error eventually helped me to get rid of an unwanted 1 inch wide bar, from top to bottom of 8 1/2 x 11 pages about 2 inches from the right-hand-side of my pages. This was progressively getting worse. I thought I was going to have to buy a new printer. I bought this printer used, and without instruction booklet, so I used your info. about printer controls and started pressing electronic buttons. It's amazing, because after I made about 35 copies, now the annoying 1 inch wide black bar is gone!