HP Point of Sale (POS) Peripherals Configuration Guide
Page 510 of 522 
9.13  HP ap5000 VFD 
Question: What is the default port that the VFD is attached to? 
Answer: The ap5000 VFD as shipped from the HP factory is shipped on serial port 2 (COM2). 
Question: Can the VFD be used on different COM port besides COM2? 
Answer: Yes, the VFD may be used either on COM1 or COM2. The VFD cannot be attached to 
COM3 because of the power requirements. 
Question: Does the VFD support emulation modes? 
Answer: No emulation modes are supported BUT many of the same ESC commands are used 
that are used in Epson emulation mode. 
9.14  HP ap5000 VFD (non-OPOS) 
Question: When the “Test” button is selected I receive an error indicating a “WriteFile” error. How 
to fix this error? 
Answer: This error indicates that the utility is not able to find the ap5000 VFD attached to the unit. 
Checking the following items: 
1.  An ap5000 VFD is attached to the unit. 
2.  The ap5000 VFD is attached on either COM1 or COM2. 










