Safe Mode engine features Engine behavior Control panel behavior
Simplex printing only Reports that duplex printing is disabled. Duplex print option is not selectable.
Ignore duplex sensor
Ignore standard bin full sensor Standard bin full messages are not
reported.
Standard bin full messages will not
occur.
Print at narrow media operating point Pages are printed slower. N/A
Ignore all input options Reports that only Tray 1 is installed. Only Tray 1 and the MPF are selectable.
Ignore all output options Does not any report installed finishing
options.
No finishing options are selectable.
Ignore rear door sensor Rear door open messages are not
reported.
Rear door open messages do not occur.
Reduce print speed Pages are printed slower. N/A
Reduce time to first print Slower time to first print. N/A
Fixing print quality issues
• “Initial print quality check” on page 36
• “Toner smear check” on page 36
• “Background or toner fog check” on page 37
• “Blank pages check” on page 39
• “Blurred or fuzzy print check” on page 40
• “Half‑color page check” on page 40
• “Horizontal banding check” on page 41
• “Horizontal line check” on page 41
• “Missing image at edge check” on page 41
• “Toner specks check” on page 42
• “Narrow vertical line check” on page 42
• “Random marks check” on page 42
• “Residual image check” on page 43
• “Solid color pages check” on page 43
• “Vertical banding check” on page 44
• “Light print on solids check” on page 44
• “Color problems check” on page 44
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Diagnostic information
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