Konica Minolta bizhub C20/C20X bizhub C20 Printer/Copier/Scanner User Guide - Page 298

Symptom Cause Solution One or more of the imaging units is defective. Remove the imaging units and check for damage. If it is damaged, replace it. There is The media is moist insufficient from humidity. fusing or the Unsupported media image (wrong size, thick- comes off ness, type, etc.) is when being used. rubbed. Remove the moist media and replace it with new, dry media. Use KONICA MINOLTA-approved media. See "Specifications" on page 106. Also, refer to http://printer.konicaminolta.com for a complete list of currently approved media. Media type is set incorrectly. When printing envelopes, labels, letter head, postcards, thick stock, or transparencies, specify the appropriate media type in the printer driver. There are toner smudges or residual images. One or more of the toner cartridges are defective or installed incorrectly. Remove the toner cartridges and check for damage. If it is damaged, replace it. There are The media transfer toner roller is dirty. smudges on the back side of the page (whether or The media path is not it has dirty with toner. been One or more of the duplexed). toner cartridges are defective. One or more of the imaging units is defective. Clean the media transfer roller. If you think the transfer roller should be replaced, contact Technical Support with the error information. Print several blank sheets and the excess toner should disappear. Remove the toner cartridges and check for damage. If it is damaged, replace it. Remove the imaging units and check for damage. If it is damaged, replace it. 284 Solving Problems with Printing Quality