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HP LaserJet MFP M433, M436, M437, M438, M439, M440, M442, M443, M42523, M42525, M42623, M42625 - Partial page or unexpected output when copying

Issue

When copying from either the document feeder or flatbed scanner, the printed output is a partial page or similar unexpected result. This occurs when copying to a media size that is different from the size of the original document being copied. The following symptoms might also be present:
  • Printed media does not match the original
  • A copy is output as a partial page when using default settings
  • Copies are output on a different media size than the original
  • Media size is not recognized by the copier when the media loaded in the tray is a different size from the original document

Affected printers

This issue can occur on any of the following printers:
  • HP LaserJet MFP M433
  • HP LaserJet MFP M436
  • HP LaserJet MFP M437
  • HP LaserJet MFP M438
  • HP LaserJet MFP M439
  • HP LaserJet MFP M440
  • HP LaserJet MFP M442
  • HP LaserJet MFP M443
  • HP LaserJet MFP M42523
  • HP LaserJet MFP M42525
  • HP LaserJet MFP M42623
  • HP LaserJet MFP M42625

Solution

This is expected behavior for these printer models (listed in the section above) because they do not have preset settings for the less common media sizes. Less common media sizes require a manual adjustment using percentages in order to be recognized by the copier.
In order for the copier to match the media size of the original to a different media size loaded in the copier, the settings must be manually adjusted on the control panel to accurately scale it to the page.
To adjust the settings, reduce or enlarge the percentages on the control panel under the Copy menu using the following media size values:
note:
These settings are the most commonly used media sizes. Other values for less common media sizes might apply.
Media size values for copying to a media size that is different from the original
Original size to be copied > Media size loaded
% Reduce/Enlarge setting value
A3 > A4
70%
A3 > A5
50%
A3 > B4 (JIS)
86%
A3 > B5
61%
A3 > B6
61%
A4 > A3
141%
A4 > A5
70%
A4 > B4 (JIS)
122%
A4 > B5
86%
A4 > B6
61%
A5 > A3
200%
A5 > A4
141%
B4 (JIS) > A3
115%
B4 (JIS) > A4
81%
B4 (JIS) > A5
70%
B4 (JIS) > B5
70%
B5 > A4
61%
B5 > A5
81%
B5 > A6
61%
Custom
25 – 400%