1 Safety
Warnings and Cautions
The following Warnings and Cautions are used throughout this manual:
Warning: Warnings alert you to possible safety risks.
Caution: Cautions alert you to the potential for equipment damage.
General Safety Information
Caution: This product is intended for indoor use only.
All service procedures should be done by properly trained and qualified service
personnel.
Any on-site assembly required during the installation process must be performed by
properly trained and qualified service personnel.
When operating, the product must be connected to a properly grounded and
appropriately rated AC receptacle using the supplied cord set.
Caution: This product contains sensitive electronic components that could be damaged
if exposed to excessive force.
Caution: Use only factory-approved consumables and cleaning kits. Use of any non-
approved supplies could damage the product and void the warranty.
Figure: 1 - 1 Caution - Hot
The printhead heats during printing. Do not touch.
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2 Media Hub Installation Instructions
Safety Overview
Caution: ESD protection is required when performing these steps.
Warning: The cover set may only be removed by a Datamax-O’Neil Authorized Service
Center. Unauthorized service will void the manufacturer’s warranty.
Warning: The printer must be powered off and disconnected from utility power prior to
performing these procedures. Failure to heed this warning may result in personal injury
or damage to internal components.
• Maintain complete ESD protection in a safe, clean environment at all times while
servicing this equipment. The installer must be properly grounded.
• When handling the printhead, grasp it by its edges.
• Avoid contact between the printhead and clothing.
• Never pull on any wires to disconnect connectors. This can void the manufacturer’s warranty.
Tools Needed
• 2.5mm Hex Head Wrench
• 5mm Hex Head Wrench
• 7mm Nut Driver
• #1 Phillips Screwdriver
• #2 Phillips Screwdriver
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J7
J1
J2
J3
J4
J5J10
J8
J6
J9
J13
J12
J15
J16
J17
J19
J20
J18
J23
J26
J25
J14
J22
Media Hub Installation Procedure
Electrical Connections
Figure: 2 - 1 Main PCB Assembly Connection Map
Table 1: Main PCB Assembly Connection Chart
Junction Connection Cable
J1 Wireless Module (Optional) or SD Memory
(Optional)
J2 Front Panel Display 105047
J3 USB Host (Optional) 105055
J4 Present Sensor 105337
J5 Unpopulated N/A
J6 Media Width 105046
J7 Unpopulated N/A
J8 Head Up Sensor 105056
J9 Unpopulated N/A
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N/A
Media Hub Installation Instructions | 2
J3
J6
J5
Junction Connection Cable
J10 Ribbon Transport 105049
J11 Unpopulated N/A
J12 Power Rewinder 105048
J13 Audio Alarm 105051
J14 Stepper Motor 104890
J15 Unpopulated N/A
J16 Top-of-Form 105180
J17 Head Pressure Sensor 105052
J18 Unpopulated N/A
J19 Paper Low Sensor 105193
J20 Cutter (Optional) 105190
J22 Printhead Data 105045
J23 Printhead Fan 105513
J25 GP I/O & Serial Ports 105785
J26 Power Supply Assembly (Bi-Directional) 105054
Figure: 2 - 2 Power Supply Assembly Connections
Table 2: Power Supply Assembly Connection Chart
Junction Connection Cable
J3 Main Board PCB Assembly (Bi-Directional) 105054
J5 Printhead Power 105053
Note: Retain all hardware for reassembly.
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1. Open the media cover assembly.
2. If the present sensor option is installed on the cover, gently pry the sides of the
cable chain outward to disconnect it from the present sensor cable connection
cover.
Note: If there is no present sensor mounted on the media cover, continue to step 5.
Figure: 2 - 3 Cable Chain Disconnect
Note: To clarify the illustration above, the cable chain is shown disconnected from the
printer chassis backbone.
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Media Hub Installation Instructions | 2
3. Remove all four 7mm nuts securing the present sensor cable connection cover to
the media cover.
Figure: 2 - 4 PCB Cover
4. Disconnect the present sensor cable connector and route the connector (male) out
of the opening.
5. Loosen all three (3) 2.5mm hex head screws from the upper cover mount.
Note: For an easier re-installation, loosen but do not remove the screws.
Figure: 2 - 5 Upper Screws
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6. Loosen and remove the three (3) 2.5mm hex head screws securing the right side
cover to the printer chassis.
Figure: 2 - 6 Right Side Screws
7. Lift and remove the cover assembly from the printer chassis.
Caution: Exercise caution when removing the cover set assembly and secure it in a safe
position where it will not be damaged.
Figure: 2 - 7 Lift Cover Assembly
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Media Hub Installation Instructions | 2
8. Loosen and remove both (2) socket head screws securing the rear chassis panel to
the printer chassis and slide the panel out of the mounting slots.
Figure: 2 - 8 Rear Panel
Figure: 2 - 9 Rear Panel
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9. Loosen and remove the cover screw and cover from the rewinder assembly.
Figure: 2 - 10 Remove Rewinder Cover
10.If the printer has the GP I/O option, disconnect the serial and GPIO connector from
junction J25 on the main PCB assembly.
11. Loosen and remove both socket head screws securing the GP I/O & serial port subassembly to the printer chassis and then gently route the assembly and cable out of
the chassis.
Figure: 2 - 11 GP I/O & Serial Port Assembly
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Media Hub Installation Instructions | 2
12.If the printer has the wireless option, loosen and remove the antenna mount
thumbscrew from the wireless cable assembly.
Figure: 2 - 12 Antenna
13.Disconnect the wireless cable assembly from the wireless module sub-assembly.
Figure: 2 - 13 Wireless Cable
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Nut
Washer
Cable Assembly
14.Loosen and remove the nut and washer securing the antenna cable assembly to
the printer chassis.
Figure: 2 - 14 Cable Assembly
15.Carefully disconnect all of the connectors from the main PCB assembly and the
power supply assembly.
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Media Hub Installation Instructions | 2
16.Loosen and remove both (2) screws securing the AC power inlet to the printer
chassis.
Figure: 2 - 15 AC Power Inlet
17.Loosen and remove the power supply ground screw.
Figure: 2 - 16 Ground Screw
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18.Loosen and remove all three (3) power supply sub-assembly screws.
Figure: 2 - 17 Power Supply Sub-Assembly Screws
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Media Hub Installation Instructions | 2
19.Loosen and remove both (2) socket head screws securing the power supply subassembly heat-sink to the printer chassis.
Figure: 2 - 18 Power Supply Sub-Assembly Screws
20.Rotate the front (right side when viewing from the right side of the printer) of the
power supply sub-assembly out of the chassis and then gently pull it completely out
of the chassis.
Caution: Exercise caution when maneuvering the sub-assembly out of the printer
chassis. The wiring can be susceptible to damage if not properly handled.
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2 | Media Hub Installation Instructions
21.Loosen and remove the four (4) screws securing the main PCB assembly to the
printer chassis.
Figure: 2 - 19 Main PCB Assembly
22.Carefully remove the main PCB assembly by rotating the front (right side when
viewing from the right side of the printer) of the assembly out of the printer chassis
and then gently pulling the rest of the assembly out from the chassis.
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Media Hub Installation Instructions | 2
Cable Channel
23.Loosen and remove all three (3) socket head screws securing the media hanger to
the printer chassis.
Figure: 2 - 20 Media Hanger Mounting Screws
Note: Be certain to support the media hanger during this step.
24.Remove the media hanger and carefully route the paper low sensor cable through
the cable channel.
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25.Remove the roller cover.
Figure: 2 - 21 Roller Cover
26.Loosen and remove the four (4) screws securing the media plate to the base plate
of the printer chassis.
Figure: 2 - 22 Media Plate
Note: These screws will not be reused with the media hub option.
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Center Plate Mounting Bolts
27.Loosen and remove both (2) socket head screws securing the print carriage
assembly to the base plate of the printer chassis.
Figure: 2 - 23 Print Carriage Mounting Bolts
28.Loosen the center plate mounting bolts so the center plate can be raised enough to
release the media plate from the printer chassis.
Figure: 2 - 24 Center Plate Mount
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Channel
29.Gently raise the center plate and remove the media plate from the printer.
30.Route the paper low sensor cable through the cable channel in the printer chassis.
Caution: Be certain to route it so the cable will not be damaged during reassembly or
operation.
Figure: 2 - 25 Paper Low Sensor Cable
31.Gently raise the center plate and insert the media hub assembly.
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Media Hub Installation Instructions | 2
32.Install the four (4) socket head screws (included in the kit) to secure the media hub
assembly to the printer chassis.
Figure: 2 - 26 Media Hub Assembly Mounting Screws
33.Reinstall the printer components in the reverse order as they were disassembled.
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