HP d640 HP D640 High-Volume Printer - Installation Manual (Printer and Accesso - Page 55

Control Panel Display at Power On, Contrast Control Knob

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Procedure 8: Powering On the Printer 6. If you do not see anything on the display, turn the contrast control knob to the 2:00 o'clock (1400) position, as shown in Figure 2-43. 5M0O0D0EL D640 ON Contrast control Figure 2-43 Contrast Control Knob Control Panel Display at Power On Figure 2-44, shows the control panel display screen at power on for initial installation. Developer Injection Open right door and rear flap then Fill new developer then Press Done Done LTR LTR LTR Exit Figure 2-44 Control Panel Screen at Installation Power-On You are now ready to load the toner and developer. The next procedure, Procedure 9: Adding New Supplies, describes these steps. 2-46 Installation

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Procedure 8: Powering On the Printer
2-46
Installation
6.
If you do not see anything on the display, turn the contrast control knob to the
2:00 o’clock (1400) position, as shown in Figure 2-43.
Figure 2-43
Contrast Control Knob
Control Panel Display at Power On
Figure 2-44, shows the control panel display screen at power on for initial installation.
Figure 2-44
Control Panel Screen at Installation Power-On
You are now ready to load the toner and developer. The next procedure, Procedure 9:
Adding New Supplies, describes these steps.
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Contrast control
MODEL D640
5000
ON
Done
Exit
LTR
LTR
LTR
Developer Injection
Open right door and rear flap
then Fill new developer
then Press Done