HP 1200 Service Manual - Page 155

High-voltage power supply check, To check the toner cartridge connection points

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Note 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. Use only isopropyl alcohol to clean the connections. 12 Figure 75. Toner cartridge high-voltage connection points (right side) 2 32 Figure 76. Toner cartridge high-voltage connection points (left side) EN Functional checks 153

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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)
2
1
2
2
2
3