HH492 User Guide 117
MAINTENANCE AND 
TROUBLESHOOTING
Repairs
Repairs and/or upgrades are not to be performed on this product. These services 
are to be performed only by an authorized service center (see Customer Support on 
page xi).
Maintenance
Your device provides reliable and efficient operation with a minimum of care. 
Although specific maintenance is not required, the following sections describe 
periodic checks to ensure dependable operation.
Clean the Scanner
The scanner or base’s housing and scanner window may be cleaned with a soft 
cloth dampened with water or a mild detergent-water solution. If a mild detergent 
solution is used, wipe the scanner or base with a clean cloth dampened only with 
water to remove any detergent residue. 
Note: Reading performance may degrade if the scanner’s window is not clean. If the window 
is visibly dirty, or if the scanner isn’t operating well, clean the window. 
Caution:   Do not submerge the scanner in water or cleaning solution. 
Do not use abrasive wipes or cloths on the scanner’s window. 
Abrasive wipes may scratch the window. Never use solvents 
(e.g., acetone) on the housing or window. Solvents may damage 
the finish or the window.
Caution:   Ensure all components are dry prior to mating the scanner with 
charging accessories or other peripheral devices. Mating wet 
components may cause damage not covered by the warranty.