HP CM3530 Service Manual - Page 525

Problem Page is blank. The page is all black or a solid color. Cause Solution The source document was not placed Verify that the source document is face-up in in the ADF input tray face-up. the ADF input tray. The source document was not detected in the ADF input tray. Remove and then reinsert the source document into the ADF, making sure that it is placed face-up. A source document was not picked up when attempting to feed multiple documents. Inspect the ADF pickup and feed rollers and the ADF separation pad for damage. Clean the rollers if they are dirty. If the ADF separation pad or rollers are warn, replace them. See ADF roller assembly and separation pad on page 215. The high-voltage power-supply lower Replace the high-voltage power-supply is defective (no developing bias lower. See High-voltage power supply lower output). on page 308. Poor contact exists in the primary charging bias or developing bias contacts between the print cartridge and the product. Clean each contact of the color that produces the all black or solid color. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts. White spots appear in an image The static charge eliminator is dirty. Clean the static charge eliminator. The primary transfer roller is deformed or has deteriorated. Replace the ITB. See Intermediate transfer belt (ITB) on page 209. The secondary transfer roller is deformed or has deteriorated. Replace the secondary-transfer-roller. See Secondary transfer roller on page 205. The back of the page is dirty. The secondary transfer roller is dirty. Replace the secondary transfer roller. See Secondary transfer roller on page 205. The fuser inlet guide or separation guide is dirty. Clean the dirty parts. If the dirt does not come off, replace the guide. The pressure roller is dirty. Execute the cleaning page. If the dirt does not come off, replace the fuser. ENWW Solve image-quality problems 495