Repetitive Defect Chart : Dependable Guide To Troubleshooting Print Quality Defects

Print quality defects hardly manifest in the operation of brand new HP LaserJet CP1215 laser printer units. Over time, print defects could no longer be avoided as the printer ages. The reason for this is obvious. As printer components start to wear out on the aging printer, this directly manifests over the output pages. The print engine of the laser printer works mechanically to deliver paper from one component to the next; aided in the process by sensitive sensors which inform the user in the event that one vital part malfunctions and shut-off the printer unit altogether. This is an automatic response system because operating with a damaged component would affect the condition of all the other components and consequently increase printer repair and maintenance costs in the process.

However, the user can easily monitor the condition of pertinent printer components through the print defect that manifest over the printout and institute troubleshooting by simply studying the physical properties (i.e. the defect’s ruler measurement) of the defect and identifying the suspect component through the printer’s Repetitive Defect Chart thereafter. Any print defect is typically triggered by a damaged printer component; but identifying the source component for the defect without the aid of the Repetitive Defect Chart can be difficult and time consuming. For example, if the Image Transfer Belt (ITB) is damaged, the ensuing print defect manifests at intervals of more than a full page. Thus, replacing the ITB at this point makes more sense in the intent of restoring acceptable print quality. The same also holds true for defects that cover a distance of 75.8 mm over the face of the paper as this print anomaly points out to a defective Organic Photo Conductive (OPC) Drum. In this case, the component has to be cleaned and thoroughly assessed or replaced.

Troubleshooting your laser printer? We might just have the printer maintenance tips you need.

Below is a rundown of different laser printer components and the corresponding print defect that legibly shows on the printout which directly affects the integrity of prints.

Defective ITB the distance is 633.6 mm and is longer than one full page.
OPC Drum 75.8mm

Transfer Rollers 57.0 mm

Fuser Pressure Roller 56.8 mm

Fuser Sleeve 56.5 mm

Registration Roller 44.0 mm

RS Roller (feed roller) 28.5 mm

PCR (Primary Charge Roller) 26.7 mm

Developer Roller Sleeve 22.3 mm

The Repetitive Defect Chart clearly identifies problem components that consequently eases out the troubleshooting process to free the laser printer from nagging print defects. It is for a fact that for brand new laser printer units, the only defect that could materialize is one coming from a low toner supply. This can be easily resolved through the purchase of a brand new toner cartridge to replace the exhausted unit. A more cost-effective option is the refill of used toner cartridges with compatible toner supplied with the HP CP1215 toner refill kit which generates big savings in the process.

Reuse empty toner cartridges and save as much as 80% on printing costs. Visit http://www.lasertekservices.com and shop for the toner refill kit compatible with your cartridge.

The monochrome toner cartridge costs $80, while the corresponding refill package retails for only $33.95. Both toner products deliver similar print quality and yields 2200 at 5% page coverage. Package also comes with a cartridge reset chip.

Photo credit: Sintas Photography / Foter.com / CC BY-NC

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