The amount of paper that can be stacked on the exit tray might be lower than the specification depending on the paper type.

For reference the number of sheets in a stack are:

  • Approx. 15 mm. paper curl: about 200 sheets
  • Approx. 20 mm. paper curl: about 150 sheets

Cause

Curl on either side of the stack raises the height of the stack and triggers the actuator of the tray full sensor before the paper exit tray is actually full.

Action

Instruct the operator to do the following:

  • Turn the stack over and print on the other side

  • Set “Curl Prevention” to ON.
    MF model: User Tools > Machine Features > Maintenance > Curl Prevention: Active
    Printer model: Menu > Maintenance > Quality Maintenance > Curl Prevention: Active

    If set to [Active]:

    • The print speed drops (30ppm). Accordingly, the first print output time is delayed.
    • The fixing ability might worsen depending on the paper used.
    • If "Thick Paper 2" or heavier is selected, the print speed drops around 23ppm.
    • If "Thick Paper 1" or heavier is selected, idle rotation 10 seconds is added before printing.