Service manual

EPSON Perfection 1250/1250 PHOTO Troubleshooting
24
3.3 Scanner Self-Diagnostics
When an error occurs, the scanner uses its Error and Ready indicator lights to
display the type of error.
See the table below to determine the type of error:
Remedy: Turn the power off and back on, send an initializtion command (ESC
@), and disconnect then reconnect the USB cable. If the light remains red,
continue with the Unit-Level Troubleshooting section.
Acceptable commands: ESC F, ESC f, ESC @
3.4 Unit-Level Troubleshooting
Refer to one of these sections to solve scanner problems:
! Scanner Doesn’t Initialize
on page 25
! Carriage Doesn’t Move on page 25
! Carriage Operates But an Error Occurs on page 25
! Lamp Does Not Come On on page 25
! Image Isn’t Scanned Clearly on page 25
! Scanner Doesn’t Receive Data From Computer on page 26
! Optional TPU Doesn’t Operate on page 26
Table 3-1. LED Indicators and Error Type
Red LED Error Type
On
"
Blown lamp
"
Carriage does not return to the home
position
"
Other scanner malfunction