Chapter 1414-3F-14-414.1.5 Making Checks on the Printer Side (Checking for fogging) 0010-9298iR7105 / iR7095 / iR7086Is the outputfree of fuzziness and thedensity correct?Is the test print ofPG4 (blank) foggy?Is the reading of between 390and 460?Is the reading of between 50and 90?Check the following of thedeveloping system:1. Developing bias2. Toner coating on sleeveYESNONOYESNOYESYESNOCheck PG7 (solid black).Make the following selections in servicemode:COPIER>DISPLAY>DPOT>VDM.Make the following selections in servicemode:COPIER>DISPLAY>DPOT>VL1M.Check the following; iffaulty, replace it:1. Laser output2. Potential control systemCheck the primary chargingsystem and the potential controlsystem; if normal, replace thephotosensitive drum.Execute service mode as follows:1. Vary the values of the following as indicated in the table:ADJUST>V-CONT>VD-OFST, ADJUST>V-CONT>VL-OFST:VD-OFST -4 -3 -2 0 +2 +3 +4VL-OFST +4 +3 +2 0 -2 -3 -4DefaultLighter images Darker imagesGo to"Checking for fogging"2. Turn off and then on the power (to start potential control).
