Question about Xerox Phaser 7400/DX Laser Printer

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Phaser 7400 14: real time clock

The printer boots up but stops when the screen reads 14: real time clock

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According to my service manual, this error is occurring during the Power On Self-Test. While it is a "soft" error, it normally can only be resolved by replacing the Image Processor Board.

But wait! There's more!

Here may be a way to reset without the expensive replacement:
The most likely cause is that the Image Processor Board has not successfully loaded
its NVRAM contents (instructions) into RAM. All print engine operation halts, and
will only become ready when the Image Processor Board successfully boots.
1. Check for media or debris in the paper path.
2. Power cycle the printer.
3. Verifying Image Processor Board failure:
a. Power-off the printer, and remove the Image Processor Board.
b. Power-on the printer. Wait at least 5 minutes while the print engine
initializes. If there was a problem with the Image Processor Board, it will
now not affect the Engine Control Board.
c. If characters appear on the Control Panel display, the Engine Control Board
is functional and the problem is most likely with the Image Processor Board.
d. Turn off the printer and reseat the Image Processor Board and turn on the
printer to determine if seating was the problem.
e. Perform a PostScript NVRAM reset, see "Postscript NVRAM Reset" on
page 6-9.
f. Turn off the printer and systematically remove individual optional
components from the Image Processor Board to isolate a possible problem
component.
g. Replace the Image Processor Board.

I wish you luck with this repair.

Posted on Jan 02, 2015

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Posted on Jan 02, 2017

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1 Answer

Need to set clock on oxo timer


I also own this model, and the manual isn't availble on OXO's site. But this is what I've learned over the years:


need-set-clock-oxo-timer-b1enchklgluxhkaxylqpxcgq-1-0.jpg
To set clock:

  1. Press and hold clock/timer button for 3 seconds (clock icon will appear on left side of screen).
  2. Input time using keypad then quickly press clock/timer button to save.

To set timer:

  1. Press and release clock/timer button.
  2. If necessary, press clear/memory so timer reads all zeroes.
  3. Enter desired time using keypad (to a maximum of 99hrs:99mins:99secs).
  4. Press stop/start to begin countdown.
  5. Pause countdown by pressing stop/start; resume by pressing button again.
  6. When countdown is complete, timer will beep continuously for 30 seconds and display will flash. Timer will then beep every 10 seconds for 10 minutes until the stop/start button is pressed.
  7. Press clock/timer button to return to clock function.

To time activities:

  1. Press and release clock/timer button.
  2. If necessary, press clear/memory so timer reads all zeroes.
  3. Press stop/start and plus (+) sign will appear on right side of screen as timer begins counting up.
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Need manual for oxo #1061978 timer


I own this model also and OXO doesn't offer the manual online. So here's what I've learned to do:


need-manual-oxo-1061978-timer-b1enchklgluxhkaxylqpxcgq-1-0.jpg

To set clock:

  1. Press and hold clock/timer button for 3 seconds (clock icon will appear on left side of screen).
  2. Input time using keypad then quickly press clock/timer button to save.

To set timer:

  1. Press and release clock/timer button.
  2. If necessary, press clear/memory so timer reads all zeroes.
  3. Enter desired time using keypad (to a maximum of 99hrs:99mins:99secs).
  4. Press stop/start to begin countdown.
  5. Pause countdown by pressing stop/start; resume by pressing button again.
  6. When countdown is complete, timer will beep continuously for 30 seconds and display will flash. Timer will then beep every 10 seconds for 10 minutes until the stop/start button is pressed.
  7. Press clock/timer button to return to clock function.

To time activities:

  1. Press and release clock/timer button.
  2. If necessary, press clear/memory so timer reads all zeroes.
  3. Press stop/start and plus (+) sign will appear on right side of screen as timer begins counting up.
  4. Pause count-up by pressing stop/start; resume by pressing button again.
  5. When you're finished timing, press stop/start to end timing function.
  6. Press clock/timer to return to clock function.

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Instructions for oxo model 1061978


instructions-oxo-model-1061978-b1enchklgluxhkaxylqpxcgq-1-0_0.jpg
To set clock:

  1. Press and hold clock/timer button for 3 seconds (clock icon will appear on left side of screen).
  2. Input time using keypad then quickly press clock/timer button to save.
To set timer:

  1. Press and release clock/timer button.
  2. If necessary, press clear/memory so timer reads all zeroes.
  3. Enter desired time using keypad (to a maximum of 99hrs:99mins:99secs).
  4. Press stop/start to begin countdown.
  5. Pause countdown by pressing stop/start; resume by pressing button again.
  6. When countdown is complete, timer will beep continuously for 30 seconds and display will flash. Timer will then beep every 10 seconds for 10 minutes until the stop/start button is pressed.
  7. Press clock/timer button to return to clock function.
To time activities:

  1. Press and release clock/timer button.
  2. If necessary, press clear/memory so timer reads all zeroes.
  3. Press stop/start and plus (+) sign will appear on right side of screen as timer begins counting up.
  4. Pause count-up by pressing stop/start; resume by pressing button again.
  5. When you're finished timing, press stop/start to end timing function.
  6. Press clock/timer to return to clock function.

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NOTE: If the printer has been powered OFF for a long period of time, the date and time may need to be reset when the printer is powered back ON.
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