The developing bias is applied to the developingroller to create a difference in the electric potential of the drum. The primary charging roller,developing roller, orphotosensitive drum isdeformed or has deteriorated. A horizontal white line appearson the page. Byexamining each section, you can isolate the problem to a particular cartridge. The default setting is Off. Print cartridges Is each print cartridge installed correctly? The duplex modelhas a mechanism that reverses and refeeds the print media to print two sides automatically. Drive circuit abnormality: The frequency in the zerocross circuit is out of a specified range whenthe product is turned on or is in the standby period.
Remove two screws callout 1 , remove the hinge callout 2 , and then pull the right-door assemblyaway from the product. See Left cover on page 92. Remove the affected print cartridgeand re-install. See Reports menu on page 211. C0 Error Turn off then on Developer motor rotation error. See Right-rear cover on page 95.
If theproblem remains after cleaning,check the contacts for damage. . Some internal pageswill still print in color. Figure 2-24 Remove the rear cover 1 2 Toner collection unit access door1. Remove eight screws callout 1 that have a small triangular icon next to them, and then slide theformatter case unit callout 2 in the direction that the arrow indicates to remove it.
When disassembling the low-voltage power supply unit callout 1 , do not touch theelectric element callout 2 as shown. Verify that the formatter is seated correctly. See Rear cover on page 93. Press the back arrow to scroll back through the submenus. From the front, inside the tray cavity, remove three screws callout 1 , release one tab callout 2 ,and then remove the Tray 3 lifter drive assembly callout 3. Print a demo page, and then verify that the print quality is as expected.
If the roller cannot be cleaned,replace the roller. From front toback, the print cartridges areinstalled in this order: black,cyan, magenta, yellow. Disconnect three connectors callout 1 , and then remove one screw callout 2. Specify how frequently the product should calibrate. Incorrect supplies More than one print cartridge isinstalled in the incorrect slot. For more information, see Control-panel menus on page 211. Power-On Calibration: Select how soonthe product should calibrate after you turnit on.
Prompt: If the product determines thatthe black cartridge has reached theestimated end of life, select this setting tobe prompted at the control panel tocontinue printing. See Rear cover on page 93. Laser beam exposure Pickup Registration Fuser 8. Nothing herein should beconstrued as constituting an additionalwarranty. The information contained herein is subjectto change without notice.
Thus the separation roller rotates in thepaper feed direction. PowerSave Time Sleep Delay Off 1 minute 15 minutes 30 minutes 1 hour 2 hours Sets how long the product remains idlebefore it enters PowerSave mode. Remove the orange protective cover from the print cartridge. Remove the power-supply fan 1. If it isnot functioning correctly,replace the developingmotor unit. Remove the cassette pickup drive assembly 1.
Remove the developing-disengagement motor 1. See Separation roller assembly Tray 2 on page 82. See Formatter case on page 123. Ifthe gear is worn or chipped, replacethe drive unit. Remove one screw callout 1. If necessary, remove the components listed at the beginning of a procedurebefore proceeding to service the product. The high-voltage power-supply lower is defective nodeveloping bias output.