QB Issue Resolution:
It would be best to check your Statement customization setting to see if it’s still in its default printer format. You may do that by going to Customers menu> Create Statements> Select Additional Options (Please see attachment below)> Customize> Customize Data Layout> Print tab.
Check if the option Use Statement printer settings from Printer Setup or Use specified printer settings below for this Statement is selected. If the latter is selected, make sure that the Paper Size field is set to Letter (8 1/2 x 11).
Resolution for Issue 'Statement print size has suddenly changed to 4.25 x 11. How do I adjust the page size to make it fit' available: Yes (Solved).
Source: Intuit Community forum.
Statement print size has suddenly changed to 4.25 x 11. How do I adjust the page size to make it fit: 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.Support for Printer
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