This document is for HP Laser MFP 131a, 133pn, 135a, 135ag, 135r, 135w, 135wg, 136a, 136nw, 136w, 137fnw, 138fnw, 137fwg, 138p, 138pn, 138pnw, 1136w, 1139a, 1188a, 1188w, 1188nw, and 1188pnw printers.
opmerking:The toner supply level and the percentage of toner cartridge life remaining provide estimates for planning purposes only. When the toner level is low, consider having a replacement toner cartridge available. You do not need to replace toner cartridges until the print quality becomes unacceptable.
let op:Do not touch the imaging drum. Fingerprints on the imaging drum can cause print quality problems.
opmerking:Keep a print sample that shows the problem. If the printer, imaging drum, or toner cartridges are replaced under warranty, the support agent might request the print sample.