Lexmark T620 Service Manual - Page 199

4069-5XX/7XX lets the backup roll heat up and helps reduce curl in some environments. Transfer The transfer can be adjusted to: • LOW • MEDIUM • HIGH Print Contrast The print contrast setting controls the developer voltage offset. The print contrast can be adjusted to: • LOW • MEDIUM • HIGH Charge Roll The charge roll can be adjusted to: • LOW • MEDIUM • HIGH Print Tests The purpose of the diagnostic Print Tests is to verify that the printer can print on media from each of the installed input options. Each of the installed options is listed in the following order in the menu: Tray 1 Tray 2 (if installed) Tray 3 (if installed) Tray 4 (if installed) Tray 5 (if installed) Multipurpose Feeder (if installed) Diagnostic Aids 3-33