Message is that the paper detected does not match size or type selected. Fax won't print until "OK" button is pressed. (No paper change is necessary, the incoming fax will print but not until "OK" button is pushed. Is there a way i can stop this message?? My printer is a HP Officejet all in one 7210

Solution: Setting the MX340 back to default settings

Instructions to change the machine back to its default settings.

1. Make sure that the machine is turned on.
   
   

2. Press the Menu button repeatedly until Device settings appears.
   

3. Use the button to select Reset setting , then press the OK button.

   
   
4. Use the button to select one of the following, then press the OK button.
   
   Telephone no. data: Reverts the telephone number settings to default. Setting data: Reverts the machine settings other than the telephone number settings, such as the page size, media type, and other settings, to default. All data: Reverts both the machine and telephone number settings to default.
   
5. Use the button to select Yes on the confirmation screen, then press the OK button.

When loading paper in the Paper Tray set the paper type and size on the Control Panel before printing.
NOTE: If [None] is selected in the Paper Type pull-down menu in the print driver, printing will default to the Control Panel settings. Printing will be performed only when the settings for the paper size and type configured in the print driver match the settings on the Control Panel. If the settings in the print driver and Control Panel do not match, follow the instructions displayed on the Control Panel.
To select a paper type:
NOTE: Paper type settings must match those of the actual paper loaded in the paper trays; otherwise, image quality problems can occur.

1. Press the [Menu] button on the Control Panel.
2. Press the [Up] or [Down] arrow button until 'Tray Settings' is selected on the Display Screen, and then press the [OK] button.
3. Press the [Up] or [Down] arrow button to select the tray, and then press the [OK] button.
4. Press the [Up] or [Down] arrow button until 'Paper Type' is selected, and then press the [OK] button.
5. Press the [Up] or [Down] arrow button to select the correct paper type for the loaded paper, and then press the [OK] button.
6. Press the [Menu] button to exit.

To select a paper size:

1. Press the [Menu] button on the Control Panel.
2. Press the [Up] or [Down] arrow button until 'Tray Settings' is selected on the Display Screen, and then press the [OK] button.
3. Press the [Up] or [Down] arrow button to select the tray, and then press the [OK] button.
4. Press the [Up] or [Down] arrow button until 'Paper Size' is selected, and then press the [OK] button.
5. Press the [Up] or [Down] arrow button until the correct paper size is selected, and then press the [OK] button.
6. Press the [Menu] button to exit.

Hello,
Please find the solutions for your problem below:

DESCRIPTION AND SOLUTION – 1:
If you see this message on the front panel of the HP PSC 2210 when you are receiving a fax, check that the paper size is set to match the paper size in the paper tray. (You cannot receive a fax on 4 x 6 paper or on an envelope.)
Checking the paper size setting

1. Press Setup .
2. Press the right arrow until you see 3: Basic Fax Setup .
3. Press Enter .
4. Press the right arrow until you see 4: Paper Size .
5. Press Enter .
6. Press the right arrow until you see the paper size that matches the size of the paper in the paper tray.
7. Press Enter .

DESCRIPTION AND SOLUTION – 2:
The media type sensor is out of calibration. HP has released a firmware update that corrects this problem.

1. Visit the Support and Drivers Web page and search for the driver downloads Web page for your product. To access to the Web Page click here.


2. Select your Windows version.
3. Locate and select the Firmware Update.
4. Follow the directions on the Web page to install the firmware update.

Hope this helps.
If you would like to vote for the answer, this will help the others to see the similar problems solved and also will be a satisfaction factor for me to continue helping you.
All the best.

HP Printer 7210 or 7310 Gives Error receving faxes Load a new blank paper on paper tray.

Press * and # simultaneously, and then release both buttons.

Press 1 , 2 ,and then 3 . The Service menu appears.

Press the right arrow button (>) until the System Configuration menu appears then press OK.

Press > until Media Sense Calibration or Calibrate Spot Sensor appear and then press OK. The unit should pick the paper and eject it.

Press the Cancel button until date and hour appear on display

Cycle Power on the Printer

1. Turn the printer off.
   
2. Wait 10 seconds.
   
3. Turn the printer on.
   
4. Determine if the issue still occurs.

Verify There is Paper in the Tray

Verify the Paper Size
Look at the chart below to verify that the paper size meets the 3000cn / 3010cn / 3100cn-series specifications.


Verify the paper size in the tray matches the size set in the 3000cn / 3010cn / 3100cn-series printer´s operator panel.

To verify the paper size in the tray matches the size set in the printer's operator panel, perform the following steps:

1. Press the MENU button.
2. Press the down arrow until Tray Settings appears and press the button.
3. Press the down arrow until Paper Size appears and press the button.
4. Press the down arrow until the specific paper tray (Tray 1, Tray 2, or MPF) appears and press the button.
5. Press the down arrow to select the specific paper size, as shown in Figure 1, and press the button.
6. Press the MENU button.

*1 Denotes country-specific factory default values.
*2 Available for the optional 250-sheet cassette only.

Figure 1 - Paper Size Chart




Verify the Paper Type Matches the Type Set in the Printer´s Operator Panel

To verify the paper type matches the type set in the printer's operator panel, perform the following steps:

1. Press the MENU button.
   
   
2. Press the down arrow until Tray Settings appears and press the button.
   
   
3. Press the down arrow until Paper Type appears and press the button.
   
   
4. Press the down arrow until the specific paper tray (Tray 1, Tray 2, or Multipurpose Feeder) appears and press the button.
   
   
5. Press the down arrow to select the specific paper type, as shown in Table 1, and press the button.
   
   
6. Press the MENU button.

Table 1: Paper Type Chart

All media types that are not Plain 1 should be printed from the MPF only.


Verify the printing preferences on the Dell™ 3000cn / 3010cn / 3100cn / 5100cn-series printer.
To verify the printing preferences is set to print from the correct tray with the correct paper size, perform the following steps:

1. Click the Start button, go to Settings, and click Printers and Faxes.
   The Printers and Faxes window appears.
2. Right-click Dell Laser Printer 3000cn / 3010cn / 3100cn / 5100cn-series and click Printing Preferences.
   The Printing Preferences window appears.
3. Verify the Paper Size drop-down is set to the correct paper size loaded in the specific tray to be printed from..
4. Click the Paper Tray tab.
5. Click the Paper Source drop-down menu and select the specific tray to be printed from.
   This sets the size and tray defaults.

Verify the Paper Size From the Printing Application Matches the Designated Printer Tray
To verify the paper size from the printing application matches the designated printer tray, perform the following steps:

1. Open the application being used to print the document. (Example: Microsoft Word)
   
2. Click File and click Print.
   
3. Verify the paper size.

Verify the Paper Source From the Printing Application Matches the Designated Printer Tray

1. Open the application being used to print the document.
   
2. Click File and click Print.
   
3. Verify the paper source.
   

Do not replace any printer hardware as this is not a printer hardware issue.

Hello oyam26,
For any paper mismatch issue, first thing you do is try to set the paper type to plain. This will fix the issue in most of the cases.

gud luck

if you still have the paper manual it's on page 54 and 55
basically you have to press fax button, then press the menu button, then use the right or left arrows (on the side of the ok button) to select "memory reference" then press "ok", then press the arrows again to print which document in memory you want to print (usually the most recent is listed) then press "ok" again.

finally press the arrows to select "yes" to print only the first page or "no" to print the entire document and press the ok button one last time. it should print.

if you are still receiving a "change paper size" type error, go ahead and press the fax button, then the settings button, use the arrows to select your paper size, press ok, then select media type, in this case "plain paper" and press "ok"

that should do it.

When the machine is in one of the following situations, the fax is automatically stored in memory.

- If ink is low or has run out while receiving a fax
- If the paper size/type setting is incorrect
- If the paper has run out while receiving a fax
- If the Output Tray is closed
- If OFF is selected for AUTO PRINT RX
- If you pressed the Stop/Reset button to cancel printing of a fax

The most likely problem is that the ink is low.

You can change the settings to still print if the ink is low by pushing the fax button and then the menu button.

Scroll over until you get to RX settings (I think it is the 6th option) and push OK.

Choose the option to Auto Print RX, and press OK.

Make sure that On is selected and even if it already is the chosen option, press OK.

When the option appears to print with no ink, select yes. This will allow the fax to print even when the ink is low.

If you see this message on the front panel of the HP PSC 2210 when you are receiving a fax, check that the paper size is set to match the paper size in the paper tray. (You cannot receive a fax on 4 x 6 paper or on an envelope.) Checking the paper size setting

1. Press Setup .
2. Press the right arrow until you see 3: Basic Fax Setup .
3. Press Enter .
4. Press the right arrow until you see 4: Paper Size .
5. Press Enter .
6. Press the right arrow until you see the paper size that matches the size of the paper in the paper tray.
7. Press Enter .

"Check paper size" means that the paper in the machine doesn't match the size selected in the setup.

To change the paper size:
1. Press the Function button.
2. Press the Data Registration button.
3. Press Set button.
4. Use up or down arrows until you see PRINTER SETTINGS.
5. Press Set button.
6. Use up or down arrows until you see PAPER SIZE.
7. Press Set button.
8. Use up or down arrows until you see type of paper in the paper tray (LTR, LGL, A4).
9. Press Set button.
10. Press Stop/Reset button.

Machine should now print out the fax that was received in memory.