Appendix B. Print Quality Problems Use the following procedure to try to resolve print quality problems,
including light printing, streaks, splotches, random deletions, blank pages,
and so on. See the rest of this appendix for samples of print quality problems.   Important!
Your printer driver or application may allow you to select print quality
settings. If it does, these settings override values set at the printer. When
the following steps recommend changing a value at the printer, make
sure you also change the setting in your driver. 1.   Print a demo page. Verify that it has the same print quality problem. If not, suspect a problem with your job. To print a demo page:
a.   Press the Menu   key once. TEST MENU appears in the message       display area.
b.   Press the Item key until you see DEMO PAGE.
c.   Press the Enter key.
d.   To exit menu mode, press the Online key. 2.   If printing is too light, make sure the Config Menu QUALITY item is not       set to ECONO. Also, try increasing the DENSITY setting to a higher value.
      See “Configuration (Config) Menu” on page 83.
3.   If printing is dark, image quality is poor, or small characters are hard to       read, try setting QUALITY to REFINE. Also, try decreasing the DENSITY
      setting to a lower value. Note that REFINE is not available if
      RESOLUTION is set to 1200.
4.   Make sure that the paper being used is fresh and dry and meets       specifications. See “Selecting Paper and Other Printable Material” on
      page 31 for more information.
5.   Install a new toner cartridge. Light prints may indicate that you need to       replace the toner cartridge. See “Changing the Toner Cartridge” on
      page 130 for instructions on removing and replacing the toner cartridge.
6.   If the problem involves spots or streaks, print several test pages to clean       out contamination.
7.   If you have an EDGE-EDGE setting set to ON, set it to OFF. EDGE-EDGE can be found on the following menus:
v  “PCL5 Menu” on page 85
v  “PCLXL Menu” on page 89 ©  Copyright  IBM  Corp.  2000 197