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Lexmark MS911

Lexmark MS911

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Preliminary 'Print Quality' Diagnosis for MS and MX 910, 911 Series Printers


NOTE:

Customer statements and answers to initial qualifying questions will impact your starting point below.

Preliminary print quality checks

Before you begin

If the customer has not yet printed any internal test pages, a good starting point is to print a 'Menus Settings' page or 'Print Quality' pages. This immediately confirms a possible hardware or supplies issue.

Do 'Print Quality' pages exhibit the print quality issue?Then see... And...
YesPrinter checksPerform any suggested actions.
NoOther checks

Consider these causes:

  • Application
  • Driver type or version
  • Driver setting
  • Scanner hardware
  • Scan/Copy settings

Printer checks

Laser EP Process checks

Listed in suggested order:

Settings check

Print a Menus Settings page and confirm these settings:

  • Print resolution -- 600 dpi
  • Toner darkness -- 8
  • Supply status -- Low, Ok
  • Paper Type

    --

    PLAIN if standard paper being used.

Settings suggestions
If... Then... And...
Resolution and toner darkness settings differ from their defaultvalues...Return all Quality Settings to their default values.

Print Quality Pages again to determine success. If problem persists, consider these other suggestions:

  • Check for toner cartridge damage.
  • Laser EP process checks listed above.

Suppliesstatus -- Low...

(Toner, Imaging unit, maintenance kit, roller kit)

Replace supplies.
Paper Type is not set to PLAIN for standard paper, i.e., Transparency...

Return this setting to PLAIN for standard paper.

Skew check

What to do? Determine a paper path issue.

  1. Load Tray 1 with 20lb. Letter or A4 size paper. Make sure the paper-tray guides are properly seated for the paper size loaded.

  2. Print Quality Pages again to determine success. If you no skew if present from tray 1, repeat these steps to isolate additional trays until you can identify the source.

Operating conditions check

What to do? Request information about the printer environrment's temperature, humidity and air quality conditions.

If any indicators suggest poor operating conditions, then ask the customer to relocate printer to a different location, and then print the Quality Pages again to determine success.

Other checks

  • Check that the proper print driver(PCL, PS, XPS) is installed for a particular file type or application.
  • Change driversto determine any change in print quality.
  • Adjust driver settingswhen applicable.
  • Check Scan Settings under Copy Setup.
  • Checkscanner platen glassand ADF glass for debris.
  • Compare simplex vs.

    duplex print output

     to identify issue occurs on both sides of the page.
  • Look for consistent and repeatable anomalies versus inconsistent and random anomalies to better understand the nature of the print problem.

LEGACY ID: SO7545
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