HP 640 User Guide - Page 50
Print the self test, Replace the print cartridge, Access Cartridge - ink cartridge
UPC - 883585076130
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Print the self test Print the self test When you want to test if the machine is working correctly, you can check it by printing the self test. 1. Press Menu repeatedly until TOOLS appears and press OK. 2. Scroll to Self Test by pressing and press OK. The machine runs self test and prints a report which shows the current status of the machine. Replace the print cartridge When you notice that the print becomes light or ink low or when install new ink cartridge appears in the display, replace the print cartridge. The part number for replacement cartridges is HP 701. 1. Take out a cartridge from its packaging and carefully remove the tape covering the printhead. Hold the cartridge by the colored top or black areas only. Do not touch the copper area. 2. Press the Access Cartridge button on the control panel. 1 Access Cartridge 1 The cartridge carrier moves to the install position. 44 Care and maintenance