QB Issue Resolution:

Use File->Print Forms->Checks … to print multiple checks.

For P&L report, bring up the P&L report on screen, then choose File->Print Report..

If the P&L report does not print after doing that, you may have a problem with your printer or may not have the printer selected in the print dialog box.

Resolution for Issue 'we have just upgraded from QB 2006 (Mac) to QB 2014 (Mac); we are not able to print more than one check at a time (although we could a few days ago) and cannot print a basic Profit and Loss report. What are we doing wrong and how can we fix it?' available: Yes (Solved).
Source: Intuit Community forum.

we have just upgraded from QB 2006 (Mac) to QB 2014 (Mac); we are not able to print more than one check at a time (although we could a few days ago) and cannot print a basic Profit and Loss report. What are we doing wrong and how can we fix it?: 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 Profit and Loss
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Error Recovery for Profit and Loss [Canada]
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