Chapter 1414-6F-14-614.3 Troubleshooting14.3.1 Image Faults14.3.1.1 Light Image / Weak Density14.3.1.1.1 When printing on CLC extra heavy paper (209g), light image occurs at solid black areas of output image0018-5273imagePRESS C1 P / imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1 (CUSTOM) / imagePRESS C1+ (Printer) / imagePRESS C1+[ Case in the field ]DescriptionWhen printing on CLC extra heavy paper (209g), light image or uneven density occurred at solid black areas on the output image. In order to improve thesymptom, the secondary transfer voltage was adjusted under user mode.Reference: The secondary transfer voltage is a voltage used to transfer toner image to paper. It is adjusted when output images become light or are distortedcompared to the images on the standard paper.Field RemedyWhen the symptoms mentioned above occur, adjust the secondary transfer voltage in the procedure below.1. In service mode > COPIER > Option > BODY > IMGC-ADJ, change the setting from '0' (default) to '1'.Reference: IMGC-ADJ is used to switch the display mode of the image adjustment items used by the system administrator. Setting this to '1' will display thefollowing items: curl correction level adjustment, paper separation fan level adjustment, image location adjustment, secondary transfer voltage adjustment,and gloss adjustment.2. In user mode > System Settings > Paper Type Management Settings, select a type of paper that has the most similar characteristics as the paper causingthe symptom, press Duplicate, and input a name for the paper type; then press OK.3. Select the type of paper registered in Step2 above, and make the selections like Details/Edit > Secondary Transfer Voltage > Change; then adjust thesecondary transfer voltage using "+" or "-" and press OK.As for the adjustment direction ([+] or [-]), please refer to the attached PDF file. The adjustable range is between '-10' and '+10'.T-14-2Note: Please explain to the user that they have to minimize the use of the foregoing image adjustment items by persons other than the system administratoras possible as they can even though IMGC-ADJ has switched the display mode of such items.14.3.1.1.2 Uneven density/light image: Developing high-voltage cable has poor contact0018-7651imagePRESS C1 P / imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1 (CUSTOM) / imagePRESS C1+ (Printer) / imagePRESS C1+[ Case in the field ]DescriptionSince uneven density/light image occurred, the developing high-voltage cable above the primary corona assembly behind the hopper was re-connected forsolution. In this field case, there was no quality problem with test print images generated during the auto gradation adjustment.Adjustment in [-] Direction is Recommended Adjustment in [+] Direction is RecommendedPaper Waight Ligh (thin paper) Heavy (thick paper)Surface Texture Smooth RoughFriction Low (smooth) High (rough)Density Areas of low toner density are light. Areas of high toner density are light.Poor ImagesTiny white spots appear on areas of high density. Outline blurring due to excessive amount of toner.Text and fine line smear.White spots appear on areas of high density.Light AreasWhite AreaWhite Area
