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HDP800 Series Card Printer/Encoders Service Manual (Rev. 5.0) 96
Resolving the Film Sensor errors (continued) Step Procedure
5Check the covered and uncovered voltages of the Lower Film Sensor
(840199). This can be measured at J65 Pin 8 on the Lamination circuit Board
(140402).
•When the Sensor is covered, the voltage should be lower than .9 Volts.
•When the Sensor is uncovered, the voltage should be above 3.4 volts.
6Re-calibrate the upper film Sensor assembly (A000222). (Note: For proper
calibration, the clear portion of the film must be installed between the Sensor
when making any adjustments.)
•(Technician Note #1: The LED light should be OFF when there is no
mark present.)
•(Technician Note #2: The LED should be ON when a mark is present.)
7Check to see if the lower film Sensor assembly (840199) contains spacers.
•(Technician Note #1: These spacers are not needed and should be
removed to improve the lower film Sensor signal.)
•(Technician Note #2: Units that are between these serials numbers are at
risk for having these spacers (A1450365 - A2150092).)
8Verify the lower Film Sensor bracket (840323) has a flat black finish in the
mounting hole for the Reflective Sensor. (Note: If paint does not cover the
entire hole, the Sensor performance will be negatively affected.)
Replace the lower Film Sensor bracket if it does not. See the Replacing the
Lower Film Sensor Assembly (840199) procedure in Section 6 on page 328.
9Verify the Film is located correctly on the roll. (Note: The film placement on
the roll should be 10mm (+/-) .5mm.)
10 Update to the latest version of Firmware. See the Firmware Updater
Application Program procedure in Section 10, page 468.