10 The exit rollers turn.
11 The printer may begin calibration.
Using Safe Mode
Safe Mode lets the printer continue to operate in a special limited mode in which it attempts to continue offering as
much functionality as possible despite known issues. See “Safe Mode print behavior” on page 37.
Note: Safe Mode is intended as a short‑term workaround and should be used only in the case of a non‑critical error
when a print job must be completed before service can be arranged to repair the printer. The printer must be
returned to standard operating mode before diagnostics can be run or full‑function printing can continue.
You can enter Safe Mode in one of the following ways:
• Enter Safe Mode from the Configuration menu, and then POR the printer. See “Safe Mode” on page 255.
• Press the 6 and 7 keys, and then POR the printer.
Return the printer to standard operating mode to service the printer and return to full‑function printing.
Safe Mode print behavior
The following table outlines the behavior for this printer model while in Safe Mode:
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.
Ignore rear lower door sensor (MX81x
only)
Rear lower door open messages are not
reported.
Rear lower 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 38
• “Fixing base printer print quality issues” on page 39
7463
Diagnostic information
37
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