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HAKUBA 26PPM Laser Printer - Base Engine Technical Manual
Version 1.0
Diagnostic Mode
·
Exact output voltage readings cannot be confirmed with this diagnostic test, because
of the HVPS design, and also variable types of multimeter.
Exit Motor Rev H
Exit Motor reverse at high speed
When ON is selected, you will see the
Exit Motor run reverse at high speed.
ROS motor On
ROS Motor On
When ON is selected, you should hear
the ROS Motor spin up.
Off Tray Flapper
Offset Tray flapper
When ON is selected, the Offset Tray
flapper roll rotates.
Offset Tray Step
Offset tray stepper motor
When ON is selected, the Offset Tray
stepper motor rotates.
OCT Offset
OCT offset motor
When ON is selected, the offset shaft
shifts right then returns.
HVPS Chg AC
AC charge voltage
When ON is selected, the AC charge
voltage is switched on. 1000 +/- 100
VAC (see note below)
HVPS Chg DC
DC charge voltage
When ON is selected, the DC charge
voltage is switched on. -425 +/- 40
VDC (see note below)
HVPS Dev Bias AC
AC developer bias
When ON is selected, the AC devel-
oper bias voltage is switched on. 690
+/- 60 VAC (see note below)
HVPS Dev Bias DC
DC developer bias
When ON is selected, the DC devel-
oper bias voltage is switched on. 7 +/-
4 VDC (see note below)
HVPS BTR -
Negative DC BTR voltage
When ON is selected, the negative DC
BTR voltage is switched on. -81 +/- 8
VDC (see note below)
HVPS BTR +
Positive DC BTR voltage
When ON is selected, the positive DC
BTR voltage is switched on. 340 +/- 30
VDC (see note below)
Detack
Detack voltage
When ON is selected, the detack volt-
age is switched on. -930 +/- 100 VDC
(see note below)
Fan Fast
Fan rotates at fast speed
When ON is selected, the fan rotates
at fast speed
Laser Diode
Laser diode activated
When ON is selected, the Laser diode
is switched on.
Roll DC Bias
DC bias voltage
When ON is selected, the DC bias volt-
age is switched on.
Table 1. Output Tests
Test
Component Tested
Notes
Summary of Contents for b 6100
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