Question about Tektronix Phaser 780P Laser Printer
It won't print because this error keeps occurring. I understand an error 12 could mean many things and had a printer repair person come out twice and he couldn't figure it out. I could use some enlightenment please!
I really don't think there's much else you can do at this point. I can find nothing about this error, and if Xerox has already sent a tech out twice, I think this has become a money pit for you. However, you should be able to sell it for parts. You have the 780 Plus, right? That comes with the extra 128megs of memory, which sells well on eBay. Or, you could just sell the whole non-working unit on eBay for parts. There are quite a few people who buy up non working printers and tear them apart to use in their repair shops, or take parts from two different printers to make one working one to resell. Sorry I can't give you better news. I scoured the net and only found information you've already looked at.
Posted on Aug 30, 2007
Try this :) http://www.office.xerox.com/userdoc/P780/P780man/7803a.htm
Posted on Aug 25, 2007
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Posted on Jan 02, 2017
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What this light sequence means that the printer has a paper jam.
When a paper jam occurs, the printer stops and the operator panel's Paper Jam light and Continue button lights come on. Press and release Continue twice quickly to display the specific secondary error paper jam light sequence.
How to clear Paper Jam
?· Press Continue button twice quickly to see the secondary error code.
To get the secondary error codes
?· When the Error light (!) and Continue button lights are both on, a secondary error has occurred.
?· When the Paper Jam light (4th light) and Continue button lights are both on, a paper jam secondary error has occurred.
?· Press and release Continue button twice quickly to display the secondary error code light sequence.
Press Continue button to resume printing once all the jammed pages are cleared from the paper path.
We recommend that you clear the entire paper path when a paper jam occurs.
To clear a paper jam:
1 If you are feeding paper from a tray, remove the tray, and then remove any jams.
2 Open the front cover and remove the print cartridge assembly.
NOTE: Do not leave the print cartridge assembly exposed to direct light for an Extended period of time. Extended light exposure can cause print quality problems.
3 Remove any jams in the area behind the print cartridge assembly.
4 Lift the flap at the front of the printer and remove any jams beneath the flap.
5 Open the rear exit and remove any jams.
6 After you have cleared the jams, reinstall the print cartridge assembly, make sure all printer covers and trays are closed, and then press Continue button to resume printing.
NOTE: The printer reprints the pages that caused the paper jam.
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[CE40] Image quality control test pattern abnormality
(1) Use "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to 576)"to check the abnormal occurring condition for each color.
(2) Check "Output value display of image quality sensor / Low-density pattern (05-391-0 to 3)" to
check if the low-density pattern abnormality occurs for each color. The values under 320 for Y, M
and C, and under 220 for K are defined as low-density pattern abnormality.
(3) Check "Output value display of image quality sensor / High-density pattern (05-390-0 to 3)" to
check if the high-density pattern abnormality occurs for each color and identify the color which
pattern is abnormal. If the value is 630 or above, it is defined as high-density pattern abnormality.
(4) Set the values of "Image quality closed-loop control / Contrast voltage (08-556)" and "Image
quality closed-loop control / Laser power (08-557)" to "0" (Invalid).
(5) Perform "Enforced performing of image quality open-loop control (05-394)".
(6) Output the image quality control test pattern (04-270) more than one time and check the patch of the color identified in step (3) to see if the image is abnormal.
(7) Replace the image quality sensor.
(8) Set the values of "Image quality closed-loop control / Contrast voltage (08-556)" and "Image
quality closed-loop control / Laser power (08-557)" to "1" (Valid).
(9) Perform "Enforced performing of image quality open-loop control (05-394)" and make sure it is
completed normally. (Error [CE40] does not appear.)
(10) Clear all "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to 576).
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