HP CM6030 Service Manual - Page 623
The thermopile is defective., The thermistor or fuser heater has
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Problem Cause Solution Image in a particular color does not print in the correct color. Poor primary charging contacts or developing bias contacts exist between the high-voltage powersupply PCA A and the imaging drum. Clean each contact of the color that produces the missing color. If the problem remains after cleaning, check the contacts for damage. Replace any deformed or damaged parts. The imaging drum (primary-charging Replace the imaging drum of the color that roller, developing cylinder, or matches the defect. photosensitive drum) is defective. The high-voltage power-supply PCA Replace the high-voltage power-supply PCA A is defective (no primary charging A. bias or developing bias output). The laser/scanner unit is defective. Replace the laser/scanner unit. Dropouts appear. The secondary-transfer roller is deformed or has deteriorated. Replace the secondary-transfer roller unit. The primary-charging roller, developing cylinder, or photosensitive drum is deformed or has deteriorated. Replace the imaging drum of the color that matches the defect. The fuser roller is deformed or has Replace the fuser. deteriorated. The high-voltage power-supply PCA Replace the high-voltage power-supply PCA B is defective (no transfer bias A. output). The toner is not fully fused to the paper. The fuser roller or pressure roller is Replace the fuser. scarred or deformed. The fuser control PCA is defective. Replace the fuser control PCA. The thermistor or fuser heater has deteriorated. Replace the fuser. The thermopile is defective. Replace the thermopile case unit. Some color is misregistered. The product is incorrectly calibrated. Calibrate the product. The ITB unit is defective. If the ITB does not rotate smoothly or a cleaning malfunction occurs (ITB is dirty), replace the ITB unit. The drive gear of the ITB motor is worn or chipped. Check each drive gear between the ITB drive roller and the ITB motor. If the gear is worn or chipped, replace the drive unit. The color-misregistration sensor is Replace the color-misregistration/image- defective. density sensor unit. The laser/scanner unit is defective. Replace the laser/scanner unit. The imaging drum is defective. Replace the imaging drum. ENWW Solve image quality problems 577
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1,188
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1,189
-
1,190
-
1,191
-
1,192
-
1,193
-
1,194
-
1,195
-
1,196
-
1,197
-
1,198
-
1,199
-
1,200
-
1,201
-
1,202
-
1,203
-
1,204
-
1,205
-
1,206
-
1,207
-
1,208
-
1,209
-
1,210
-
1,211
-
1,212
-
1,213
-
1,214