Hewlett-Packard 1200 - LaserJet B/W Laser Printer Service Manual
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Brand: HP
Category: All in One Printer , Fax Machine , Printer
Type: Service manual for HP 1200
Pages: 208 (7.84 Mb)
EN
Functional checks 153
High-voltage power supply check
The high-voltage power supply PCA provides the necessary voltages
for the electrophotographic processes.
To check the toner cartridge connection points
Turn the toner cartridge over and visually inspect the three
connection points on the ends of the toner cartridge: drum ground
(callout 1), charging (callout 2), and developing roller (callout 3). If
they are dirty or corroded, clean the connection. If they are damaged,
replace the toner cartridge.
Note Use only isopropyl alcohol to clean the connections.
Figure 75. Toner cartridge high-voltage connection points (right side)
Figure 76. Toner cartridge high-voltage connection points (left side)
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