e-STUDIO2020C/2330C/2820C/2830C/3520C/3530C/4520C © 2008 - 2011 TOSHIBA TEC CORPORATION All rights reservedERROR CODE AND TROUBLESHOOTING6 - 92< Checking with the enforced image position adjustment >(28) Turn the power ON while [0] and [5] are pressed simultaneously.(29) Key in “4719”, then press the [START] button. (05-4719: Enforced position adjustment)Is a certain color in the printed image turned to black solid?||||||||||||||AbnormalÆ • Abnormality in the main high-voltage transformer corresponding to thecolor or abnormality in the laser optical unit.• Replace one of 4 main high-voltage transformers which possiblycontains abnormality, and also the one possibly normal. Then print thesame test pattern.• If the color which turned into black solid changes along with thereplacement of the main high-voltage transformer, this main high-voltage transformer is defined as abnormal.• If the color which turned into black solid does not change, check if theharness between the LGC board and the main high-voltagetransformer is broken or if the power is sufficiently supplied to the maincharger (breaking of the high-voltage harness or connection defect). Ifno problem is found, check the laser optical unit.È |Normal ÈIf the density level is low on both front and rear sides, is the image printed normally in casesother than noted above?|||||||||||||||||||||NOÆ Check the following items:1. Check if the photoconductive drum and the transfer belt are rotating. Ifnot, correct their mechanism.2. Check if there are abnormal stain, large breaking or scratches on thetransfer belt surface.3. Check if the connector of the transfer transformer is disconnected.4. Check if the high-voltage harnesses of the main high-voltagetransformer and the transfer transformer are disconnected.5. Check if the harness between the LGC board and the transfertransformer is broken.6. Check if the high-voltage joints of the transfer belt unit are securelycontacted or if they are not stained.7. Check if the high-voltage harness is broken.8. Check if the connector of the main high-voltage transformer isdisconnected.9. Check if the harness between the LGC board and the main high-voltage transformer is broken.10.Replace the transfer transformer.11.Replace the main high-voltage transformer.|È|ÈYES Proceed to step (23).(Proceed to step (28).)Does the error [CA00] occur during the position adjustment control?|ÈYESÆ Proceed to step (5).NO (Proceed to step (30).)
