Question about OKI B4100 Laser Printer
Paperjam due to stapled 2 pages accidently in paper tray. Opened, removed paper remaining under cartridge/drum combo. Cleaned copier.
Persistent "paper jam, open upper cover message. I suspect jammed sensor, or small piece of paper corner remaining, but none visible. I am handy at computer repair, etc. I s there on line service manual to show where hidden sensors or rollers might be? How do I remove cover/ open unit to look for problem sensor/hidden paper?
In response to a question by Fixya. I solved it by searching throgh all references to paper jams on Fixya. I found a solution which I have already described. This is a very helpful site.
Posted on Feb 28, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Aug 28, 2012 | Lexmark T652N PRINTER OPPENHEIMER SPECIAL...
Brother strongly recommends that customers do not use
generic drum unitsand/or toner cartridges, or refill their Brother toner
cartridge. Each Brother laser printer is designed to work at pre-set
temperatures that are matched exactly to each of our individual toner
formulations. Each individual component is designed to work with the other to
ensure quality and reliability. Using non-Brother supplies may affect the
Verify the message displayed on the LCD.
Warning: If you just used the machine some parts inside the
machine are extremely hot.
1. Pull the paper tray completely out of the machine.
2. Pull the jammed paper out of the paper tray opening. If
you are unable to remove the jammed paper continue to STEP 3. If you are able
toremove the jammed paper continue to STEP 9.
3. Open the front cover. If you cannot open the front cover,
do not useextra force. See below for further assistance.
4. Pull out the drum unit and toner cartridge assembly. The
jammed papermay be pulled out with the toner cartridge and drum unit assembly,
or removing the drum and toner assembly may release the paper so you canpull it
out of the paper tray opening.
a. If you are able to remove the drum assembly and jammed
paper continueto STEP 5.
b. If you cannot remove the drum unit and toner cartridge
assembly easily, do not use extra force. See below for further assistance.
5. Place the drum unit on a drop cloth or large piece of
disposable paper to avoid spilling and scattering the toner. Hold down the blue
lock lever on the left side of the drum assembly and lift the toner out of the
drum unit. Examine the drum carefully for small pieces of paper that may be
6. Reinsert the toner cartridge in the drum unit until it
clicks into place. If you put it in properly, the lock lever will lift
7. Place the drum unit and toner cartridge back into the
machine. Use equal pressure on both sides of the drum unit when pushing it back
into place. Make sure it clicks into place.
8. Close the front cover. Make sure it clicks into place.
9. Remove any remaining paper in the paper tray and then
reload it. The tray can hold up to 250 sheets of 20lb paper. Do not over fill
the tray.There is a maximum paper mark located on the top of the right and left
paper guide. It looks like a V cut out in the plastic. Fan the stack of paper
well to avoid paper jams or misfeeds.
NOTE: If you are using special paper and the machine has
problems feeding it from the paper tray, try the paper again using the manual
10. Put the paper tray firmly back into the machine and
unfold the output paper tray support flap before using the machine.
11. Turn the Brother machine around with the back of the
machine facing you.
12. Open the back cover.
13. The black plastic inner chute should spring open
automatically when the back cover is opened. Note: The inner chute has a
diagram on it of a piece of paper being removed from the unit.
14. If there is paper inside the machine carefully remove
15. Close the back cover. NOTE: The inner chute will close
automaticallywhen the back door is closed.
16. To test, print the Help List:
a. Press the REPORTS key located on the right side of the
b. Press the up or down arrow key until Help list appears on
c. Press Menu/Set. The report should begin printing.
Thanks an good luck
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