HP 4300 Service Manual - Page 74
Cleaning the printer and accessories, WARNING, CAUTION, - roller
UPC - 808736312264
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Cleaning the printer and accessories WARNING! CAUTION To maintain superior print quality and performance, thoroughly clean the printer and the paperhandling accessories: q every time you change the print cartridge. q after printing approximately 10,000 pages. q whenever print-quality problems occur. Clean the outside surfaces of the printer and accessories with a water-dampened cloth. Clean the inside parts as indicated in "Cleaning the printer" on page 55. Observe the following warning and caution when cleaning the printer accessories. Before beginning the cleaning steps, turn the printer off and unplug all power cords to avoid shock hazard. Be careful when cleaning around the fusing assembly area. It might be hot. To prevent permanent damage to the print cartridge, do not use ammonia-based cleaners on or around the printer. Do not touch the transfer roller (callout 1). Skin oils on the roller can cause print-quality defects. If toner gets on clothing, wipe it off with a dry cloth and wash the clothes in cold water. Hot water sets toner into fabric. 1 Figure 3. Location of the transfer roller - do not touch! 54 Printer maintenance Q2431-90912