I. Feedback on the Performance of the 668 Printer
1.Power Restart Issue When Printing Pictures
  • Problem Description:
    When using the 668 printer, we've noticed that if you continuously print pictures with deep black tones, 
the printer may restart.
  • Detailed Explanation:
    When the 668 printer is handling picture printing tasks with high color concentration, especially when
 continuously printing pictures with deep black tones, its internal power supply mechanism will be significantly
 affected by the heavy load, which may lead to a restart. This kind of situation usually doesn't occur when printing
shipping labels or other contents that don't require high color depth.
  • Suggestions for Customers:
    To ensure the stable operation of the printer, we don't strongly recommend using the 668 printer for 
picture printing,especially for pictures with a large amount of deep black tones. This printer is more suitable for 
printing shipping labels and other label contents with relatively low color requirements.
2.Customer Feedback Channels
  • Email Feedback:
    If you encounter any problems or have relevant feedback during the use of the 668 printer, please feel free 
to send an email to [email protected]. Our professional team will check and reply to your email in a timely 
manner.
  • Phone Consultation:
    You can also call +1 (833) 470 - 2950 from 10 am to 10 pm (EST) on Monday - Friday, or call this number 
during the same hours on weekends (1 pm - 9 pm EST) to contact our customer service staff. They will do their 
best to answer your questions.
  • WhatsApp Contact:
    Additionally, you can contact us via WhatsApp within the corresponding working hours. The number is 
+1(984) 343 - 4146.
We attach great importance to the customer's user experience and will continuously improve our products based 
on your feedback. Thank you for your support and understanding of our products.