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.
Warning—Potential Damage: 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 245.
• For 2.4” display models, press the Stop and Back keys, and then POR the printer.
• For 4.3” and 7” display touchscreen models, press the 6 and 7 keys, and then POR the printer.
• For LED models, you must contact the next level of technical support for assistance.
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.
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
• “Gray background on prints” on page 39
• “Printer is printing blank pages” on page 40
• “Printer is printing solid black pages” on page 41
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Diagnostic information
37
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