Maintenance and Service Guide
Table Of Contents
- Product overview
- Standard features
- Integrated features
- Stand options
- HP Engage One Basic I/O Connectivity Base components
- HP Engage One Advanced I/O Connectivity Base components
- Connecting an AC adapter to power
- Locating the Engage One power button
- Locating the I/O connectivity base power button
- Adjusting the Engage One head unit
- Engage One serial number location
- I/O connectivity base serial number location
- Illustrated parts catalog
- Routine care, SATA drive guidelines, and disassembly preparation
- Removal and replacement procedures
- Preparation for disassembly
- Attaching an I/O connectivity base to the Engage One
- Connecting a standalone I/O connectivity base to the Engage One
- Configuring the I/O connectivity base’s powered serial ports
- Connecting a standalone optional fingerprint reader to the I/O connectivity base
- Attaching an optional fingerprint reader to the I/O connectivity base
- Removing and attaching the Engage One head unit to the stand
- Mounting the Engage One head unit to a wall
- Mounting the Engage One to a counter top
- Installing a security cable on the I/O connectivity base
- Installing a security cable on the Engage One column
- Installing a security screw on the Engage One head unit and stand
- Installing a security screw on the Engage One head unit and VESA mount
- Removing and replacing the column printer
- Removing the display panel
- System board components
- Installing a 2 x 20 customer-facing display (CFD)
- Memory modules
- Removing and installing an M.2 solid-state drive (SSD)
- Removing the WLAN module
- Removing the heat sink
- Removing the fan assembly
- Removing the speakers
- Removing the power button board
- Removing the MSR (Magnetic Stripe Reader)
- Removing the MSR LED board
- Removing the system board
- Removing the antennas
- Using the column printer
- Cable routing configurations
- Cable matrix for Engage One with integrated column printer and basic I/O connectivity base
- Cable matrix for Engage One with integrated column printer and advanced I/O connectivity base
- Cable matrix for Engage One without I/O connectivity base
- Cable matrix for Engage One with I/O connectivity base
- Cable matrix for Engage One with basic I/O connectivity base and standalone printer
- Cable matrix for Engage One with advanced I/O connectivity base and standalone printer
- Configuring the software
- Computer Setup (F10) Utility
- POST error messages and diagnostic front panel LEDs and audible codes
- Password security and resetting CMOS
- Using HP PC Hardware Diagnostics (UEFI)
- Troubleshooting without diagnostics
- Safety and comfort
- Before you call for technical support
- Helpful hints
- Solving retail system-specific problems
- Solving general problems
- Solving printer problems
- Solving hardware installation problems
- Solving network problems
- Solving memory problems
- Solving USB flash drive problems
- Solving Internet access problems
- Solving software problems
- System backup and recovery
- Power cord set requirements
- Statement of memory volatility
- Specifications
- Index

Printer tone and green LED
Condition Possible causes Possible solutions Where to go for more
information
Green LED, quick steady
ashing.
Paper roll is empty. Load a new paper roll. See Loading the printer receipt
paper on page 64.
Receipt cover is open. Close the cover. If the problem
persists, continue opening and
closing the cover until the LED
stops blinking.
The knife is unable to return to
the home position.
Stop using the printer. Contact your authorized HP
service representative.
Green LED, slow steady
ashing.
Other problems may be
indicated.
Stop using the printer. Contact your authorized HP
service representative.
Printer beeps (two-tone—low
frequency, high frequency).
Printer has been turned on and
is ready to operate.
No action is required.
Printer beeps and ashes green
LED in various combinations.
These all indicate a serious
condition.
Stop using the printer. Contact your authorized HP
service representative.
Printing issues
Condition Possible causes Possible solutions Where to go for more
information
Colored stripe on the receipt. Paper is low. Change the paper. See Loading the printer receipt
paper on page 64.
Receipt does not come out all
the way.
Paper is jammed. Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Printer starts to print, but stops
while the receipt is being
printed.
Paper is jammed. Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Receipt is not cut. Paper is jammed. Open the receipt cover, inspect
the knife, and clear any
jammed paper.
Print is light or spotty. Paper roll is loaded incorrectly. Reload the paper correctly. See Loading the printer receipt
paper on page 64.
Thermal printhead is dirty. Use recommended thermal
receipt paper and clean the
printhead with 99% isopropyl
alcohol.
Variations in paper. Increase print density in Set
Hardware Options of printer
conguration menu to 110% or
120% as needed.
Contact your authorized HP
service representative.
Vertical column of print is
missing.
This indicates a serious
condition with the printer
Stop using the printer. Contact your authorized HP
service representative.
Troubleshooting the printer 67










