QB Issue Resolution:

Did you do this:
Your signature image should have an 11:3 aspect ratio (11 width and 3 height). Your signature image will be sized to fit into a a 2-3/4 inch wide by 3/4 inch tall space and placed directly above the signature line on Intuit-supplied checks.

Be sure your signature file is in the correct file format. QuickBooks accepts almost any image file format, including BMP, JPEG, PNG, and TIFF.

If you use QuickBooks user names and passwords, the signature file is stored by user name and company. If you do not have multiple user names and passwords, the Admin is the implicit user.

Note: This feature is available in QuickBooks 2010 and later only:

Go to the File menu, select Printer Setup…
From the Form Name drop-down list, select Check/Paycheck.
Put a check next to Click Print Signature Image.
In the Signature dialog box, click File.
Select the graphic file that contains the signature and click Open.
Click OK in the Signature dialog box then click OK in the Printer Setup dialog box.

Resolution for Issue 'checks do not print when signature box is checked' available: Yes (Solved).
Source: Intuit Community forum.

checks do not print when signature box is checked: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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