Epson Stylus Pro 4900/Epson Stylus Pro 4910  Revision A
TROUBLE SHOOTING  Problems on SpectroProofer  91
Confidential
2.9  Problems on SpectroProofer
This section describes the possible trouble on abnormal SpectroProofer operations, their causes, and their remedies.
Table 2-7.  Problems on SpectroProofer
Symptom Cause Check Item Remedy
SpectroProofer is not operating/recognized
Not connected to printer properly
 Communication cable properly connected?
 Mounter not completely fit to the printer because of a 
foreign object?
 Turn the printer off. Re-insert the 
communication cable and then turn on the 
printer.
 Take out any foreign objects and reattach the 
mounter.
Communication cable was connected 
while the printer is ON
Was communication cable connected while the printer is 
OFF?
Turn the printer off. Re-insert the communication 
cable and turn on the printer.
Paper guide unit is not attached 
properly.
 Paper guide unit properly attached?
 Paper guide unit’s rib for detection damaged? Paper 
guide sensor detects whether Paper guide unit is 
attached or not.
 Re-attach the paper guide unit.
 Replace the paper guide unit if damaged.
Backing not recognized Backing attached properly? Check if Backing Sensor is active. (See P.401)
Full side front corner of Backing 
damaged
Any troubles in Backing corner? Replace Backing if damaged.
Power/USB cable not connected to 
SpectroProofer
Power/USB cable not connected to SpectroProofer
Turn the printer off, and connect the cables 
properly.
Foreign object in the path of paper 
pressing plate initialization.
Foreign object in the path of paper pressing plate 
initialization.
Remove any foreign objects.
CR drive mechanism or the paper 
pressing plate is damaged
Error message on the panel?
If there is a message, refer to Remedies for Error 
Messages related to SpectroProofer (P.74)
Paper smeared with ink
Ink on the paper pressing plate or 
Backing is transferred to the paper
Check if the paper pressing plate or Backing is not dirty.
 Backing is dirty: 
Wipe off the dirt with a soft dry cloth. If there 
are any hard-to-remove stain, wipe with a cloth 
damped with water and then wipe off remaining 
liquid with a dry cloth.
 Paper pressing plate is dirty: 
Wipe off the dirt with a soft cloth damped with 
diluted mild detergent, and then wipe off 
remaining liquid with a dry cloth.
Check if the paper is set upside-down. Re-set the paper.