I have an HP 16C that apparently was on over the holiday. I found the display stuck reading "48,962.29" and a star below the '4' blinking. The display eventually faded to a blank screen. I replaced the cells [type 357] and the screen is back to the "48,962.29". Pressing the 'A', 'B', or 'C' buttons causes the left three digits to ripple, but nothing else.

I would place a manual thermometer inside to double check but if display is correct it is 16 degees below freezing, this isn't as cold as a freezer usually gets though.

NVRAM Initialization:
1. Turn the printer off.
2. Press and hold down CANCEL (X) and Start Copy (button just below the X button) buttons at the same time while powering on printer. *Keep these buttons press while you power on the printer*
3. Continue to hold down buttons until the printer display reads PERMANENT STORAGE INIT.
4. Release the buttons when "PERMANENT STORAGE INIT" is displayed. Printer will return to Ready automatically.

Did you try solutions from this site? Scroll down to Issue: The Check Print Cartridge light blinks, and click on Solutions.

If I helped you, please take time to rate my answer :)

No. About 18-20 on the highway

I had this problem yesterday, and found the solution here.. Follow the steps in this link and you'll fix the problem.. Good Luck!
http://callitout.com/quotes/index.php/kick-it-to-the-curb/68/printer-wont-boot-up-start-cycle/
Roni,

Watch the video on Section two of this HP link:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00860153&cc=us&lc=en&dlc=en&product=3192753&tmp_track_link=ot_search#N334

Click on this link or copy and paste the complete link into your browser.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response. Happy Holidays!

Thanks, Joe

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

Your CM921 has 6 built in temperature settings based on time of day:

1 - 6:30 AM
2 - 8:00 AM
3 - 12:00 PM
4 - 2:00 PM
5 - 4:00 PM
6 - 10:30 PM

meaning that at 6:30 AM the themostat will change its temperature setting to setting 1, at 8:00 AM it will change the temperature setting to setting 2, and so on. To schedule temperature settings which best fit you, determine which time periods you would like more or less heat.

For instance, to fit what you requested in your question you could program a temperature you would like to maintain in the morning and afternoon times when you would like it to be on, and in the time periods in between set a lower temperature as follows:

1 - 20C
2 - 16C
3 - 16C
4 - 20C
5 - 20C
6 - 16C

With this example your thermostat would turn on at 6:30 AM as long as the temperature was below 20C and maintain that temperature until 8:00 AM. At 8 it would change its setting to 16C allowing temperature to drop from 8 AM to 2 PM to a lower setting to conserve energy until afternoon time when the setting would change back to 20C from 2 PM to 10:30 and then change back to 16C to save energy throughout the night. The actual temperatures would be at your discretion based on your individual comfort level.

Pages 5 and 6 of the following link will guide you in setting each of the 6 temperature settings.

http://www.wolseleysbc.co.uk/_STEPData/Assets/Honeywell%20CM921%20Room%20Thermostat.pdf

I hope this helps. Let me know if you have any additional questions.

Make sure that there is no paper stuck inside the paper, try cleaning the rollers, if the issue stil persit perform the below steps. Reset the All-in-One to the factory default settings by using these instructions: 1) Press ON and CANCEL buttons simultaneously 2) Display reads ?Enter Special Key Combo? 3) Press BLUE button, Green button and Grey button 4) Press Grey button continuously until "Resets Menu" is displayed. 5) Press Green button. 6) Press Grey button until "Semi full Reset" is displayed. 7) Press Green Button. This should resolve the issue.

Maybe this will hellp others with this, if it's an output issue vs. scnaning, or those w/related Copy problem. I could not Copy without the message about Incorrect Paper Size. I finally found this link which solved that problem AND one of the paper feeding in poorly and at an angle which preceded the error msg by a week, resulted in angled prints on the page.
http://h30434.www3.hp.com/t5/Other-printing-questions/HP-6180-Will-not-copy-gives-quot-paper-mismatch-quot-error/td-p/5026

>>
You may have an issue with your "spot sensor" and it needs to be calibrated.

Instructions:

1. Press * and # at the same time, and then release both keys.
The display reads "Enter Special Key Combo".
2. Press 3, 2, and then 9, releasing each key before pressing the next.
The display window should read "Service: R0622M" with a revision number.
3. Press the right arrow button once.
The display should read "System Configuration".
4. Press Enter or OK.
5. You will be prompted to enter serial number. Do not enter any information
on the unit.
Press the right arrow button until "media sense calibration" appears in the
display.
6. Load Paper into the unit and then press Enter or OK.
7. Media Sense Calibration process will take place.