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asked Jul 16, 2004 at 3:02am
Epson Epson LQ 850

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To anyone who can help...

The EPSON (Epson Stylus Color 850)printer I am using cannot detect any paper rolling, even though the paper is there. How do I solve this? It can detect that the paper is in, but then when I tried to send printing signal; it turns out a fatal error message, blinking at paper out. Please help, anyone.

Mimi: There are actually 4 lights or Leds on your printer: power light, paper light, black ink light & color ink light. I need to know the actual combination of all 4 of those lights and which lights are on SOLID, or on BLINKING, or OFF. The combination or light pattern can actually indicate a possible Service Error Condition, that your printer may be having. EXAMPLE: An actual FATAL ERROR MESSAGE is represented by the power & paper lights BLINKING and the black ink & color ink lights on SOLID. A Fatal Error is normally caused by the Carriage Assembly [Print Cartridge Holder Assembly] not moving at all, or moving abnormally and thats why the paper fails to also feed-in properly. Usually you will hear Grinding or Ratcheting type noises and sometimes that holder assembly can even crash or slam into one end of the printer [usually the left end] and then that Service Error light pattern will come on, indicating that fatal error condition. If your printer actually has that fatal error, then it's possible your printer has an electronic or mechanical failure, but the most common problem is that the Carriage Assembly is simply DIRTY and or DRY, causing it to stick and make noises. That usually results in the printer loosing track of just where the Print Cartridge Holder Assembly is actually at and that can cause the Error Lights/Leds to come on. Sometimes when the printer looses track of where that assembly is at, it then keeps telling that assembly to keep moving and thats what can cause it to slam into the end of the printer. Try wiping off all around the round metal carriage bar or shaft [that the Print Cartridge Holder assembly moves back-n-forth on], with a lint free cloth. Also clean the outside of the metal bushings with Q-Tips, that the carriage bar passes thru, on both sides of the cartridge holder assembly. You can also use alcohol on the cloth, if there is a lot of build-up on the carriage shaft/bar. Then lube the metal bar on both sides of the holder assembly, slightly with a precision oiler, not a spray lubrication. A drop or two of a Teflon based lubrication or Tri-Flo lube is best. Manually slide the holder assembly back and forth to spread out the lubrication and wipe of any excess lube or blackish build-up that appears on the bar. Look for an e-mail message from me with more in-depth information, that might help you in that area. You can check out this link, supplied by WES, to see different lubrications: http://www.epsonhelp.web1000.com/oil.html ...If your printer does not actually have a fatal error indicated, or cleaning & lubing that carriage assembly does not actually help, then post another message and we will try to help you further, if we can. Also let us know if you recently had had a bad paper jam that you had to forcefully yank out of your printer, especially towards the rear of the printer, in the backwards direction. If so, then its always possible possible that a part was unhooked/unseated or even damaged, but thats an entirely different problem...Good Luck! Denny Conway
by Denny Conway on Jul 16, 2004 at 10:47am Add comment