To avoid jams and ensure proper operating speed of the machine, it is important to correctly load the hopper. Bills should be placed in a neat stack prior to being placed into the hopper.

1. Prepare the Bills: Ensure the bills are clean, dry, and free from damage, folds, or foreign material like clips and bands.
2. Adjust Bill Guides: Set the hopper bill guides slightly wider (0.10’’ on each side) than the bill width for smooth feeding.
3. Stack the Bills: Correct or remove any wrinkled or damaged bills and square the stack.
4. Load and Feed: Place the stack into the hopper, ensuring proper alignment.

Safety Tip: Keep fingers, hair, and loose clothing away from moving parts.

ATTENTION: The unit should always be turned off and disconnected from its power cord before cleaning. DO NOT use solvents such as thinner, alcohol, etc. to clean the machine.

Most operational problems can be avoided by regular care and preventative maintenance. Taking regular care of the Domino will significantly increase its lifetime.

To avoid problems, make sure there are no metal clips or rubber bands in the bills being counted. Be sure to follow the proper procedure for loading the hopper, refer to section 2.2 Loading The Hopper in the User Manual.

For best results, it is recommended to use an air duster and a soft bristle brush to remove any dust or debris from the interior of the unit. When not using the machine for an extended period, cover it with the dust cover (not included with the unit) to prevent dust from settling inside.

All parts of the CRS-8500 need daily care and cleaning. Pay close attention to the sensors, which are delicate components. If any dust or other foreign matter adheres to the sensors, it may cause various problems during operation of the machine.

1. Hopper Sensor
2. Stacker Sensors
3. Upper Sensors Block
4. Lower Sensors Block

NOTE: The CRS-8500, like all other discriminators on the market with integrated detectors, cannot guarantee a counted bill to be genuine or counterfeit.

There are several reasons a genuine bill may be recognized as counterfeit, or vice versa. Possible reasons include: direct sunlight exposure, worn bills, excessively dirty bills, or highly advanced counterfeiting techniques used to produce the bill. Separate equipment may be required to definitively determine whether a bill is counterfeit.

For all error code references, open the User Manual:

Section 6.4 Troubleshooting.

During transportation or normal wear, the feed mechanism may loosen, causing DOUBLE/CHAIN errors. The feed gap, which controls the bill feed path height, should be set to the thickness of a single bill. A wide gap causes DOUBLE/CHAIN errors, while a tight gap may prevent bills from feeding or tear them.

To adjust the feed gap:

1. Turn off the machine.
2. Position the rollers: Turn them until no teeth are visible, leaving only the smooth section exposed.
3. Place a rigid bill: Insert it lengthwise into the hopper.
4. Guide the bill: Pass the bill through the inner rollers, feeling moderate resistance. The gap should allow one bill to pass with slight friction.
5. Adjust the gap:

• Turn the adjustment screw in small increments.
• Tighten (clockwise) if the bill feels loose.
• Loosen (counterclockwise) if resistance is too strong.

Note: Adjust in small steps, testing after each turn, to avoid overshooting the optimal gap.

The unit's Contact Image Sensors (CIS), Ultraviolet (UV), and Infrared (IR) sensors are factory-calibrated but may lose sensitivity over time, leading to ID errors. To recalibrate, follow these steps:

1. Turn the machine ON.
2. Press the MENU button, select 4. SERVICE, then 2. CALIBRATION. CIS will be highlighted on the screen.
3. Turn the machine to access the back door and pull the handle to open it.
4. Push the metal latch down to access the sensor blocks. Place the laminated calibration card between the blocks.
5. Return the lower sensor block to its initial position and ensure it is securely hooked.
6. Close the back door carefully with the calibration card inside.
7. Press START/STOP to begin calibration. The screen will display "CIS check wait."
8. When done, the screen should show “CIS check ok.” If “CIS check fail” appears, readjust the calibration card and repeat steps 3-6.
9. Remove the calibration card and reset the machine by turning it off and back on.
10. Repeat the process for UV + IR calibration.

Sensor Care: Clean sensors daily using the provided brush or dry cloth. For rubber rollers, use a damp cloth with mild soap, ensuring no residue remains.