Epson 4880 C Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 191SERVICE REQ. 00010039 †
Error meaning:
PG adjustment value incorrect overwrite error
†
Explanation
Writing to the PG adjustment value area of NVRAM was done improperly, 
or an improper value was read.
†
Cause of trouble„
Defective circuit board
„
Faulty CPU soldering
„
Program trouble.
†
Remedy
1.Installing Firmware (p.444)
2. Replace the C593 MAIN Board (p.226)
SERVICE REQ. 0001003A†
Error...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 192SERVICE REQ. 00020000†
Error meaning:
NVRAM error
†
Explanation
There may be a case where the parameter data in NVRAM is broken. In 
such a case, this message is displayed and the printer stops operating.
†
Cause of trouble„
NVRAM erase error
„
Write error (Check in 2 bytes)
†
Remedy
Replace the C593 MAIN Board (p.226)
SERVICE REQ. 00020002†
Error meaning:
SDRAM error
†
Explanation
In memory...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 193SERVICE REQ. 0002000A†
Error meaning:
Program load error
†
Explanation
SUM check error for program area on RAM.
†
Cause of trouble„
Program problem
„
SDRAM failure
†
Remedy
1.Installing Firmware (p.444)
2. Replace the C593 MAIN Board (p.226)
SERVICE REQ. 0002000B†
Error meaning:
Internal memory shortage error
†
Explanation
This error appears when the cash area is insufficient. There may be a...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 194SERVICE REQ. 10000180†
Error meaning:
CPU reserve command code exception error
†
Cause of trouble„
Defective circuit board
„
Faulty CPU soldering
„
Program trouble
„
Generation error
†
Remedy
1.Installing Firmware (p.444)
2. Replace the C593 MAIN Board (p.226)
SERVICE REQ. 100001A0†
Error meaning:
CPU slot illegal command exception error
†
Cause of trouble„
Faulty CPU soldering
„
Program...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 195SERVICE REQ. 10000XXX†
Error meaning:
CPU error
†
Cause of trouble„
Defective circuit board
„
Faulty CPU soldering
„
Program trouble
„
Generation error
†
Remedy
1.Installing Firmware (p.444)
2. Replace the C593 MAIN Board (p.226)
SERVICE REQ. 0003XXXXSERVICE REQ. 0DXXXXXX†
Error meaning:
Error code for debug
†
Cause of trouble„
Defective circuit board.
„
Defective SDRAM.
„
Defective Flash...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Your Printout 1963.3  Troubleshooting Based on Your PrintoutThis section describes conceivable print quality problems that may occur with 
this printer and the troubleshooting points for those errors.DOT MISSING
Auto cleaning is performed by dot missing inspection of the Multi Sensor, but 
dot missing can be generated by increased congealing of ink on Print Head 
nozzle surfaces or in nozzles due to drying when...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Your Printout 197UNEVEN PRINTING/POOR RESOLUTION
If the print quality is abnormal (uneven printing, diffused image, etc.), the 
following items should be checked.
1. Perform the adjustment below with Adjustment Program.
1. Nozzle Bi-D Adjustment (p.393)
2. Auto Bi-d Adjustment (p.430)
3. Auto Uni-d Adjustment (p.401)
4. Check Platen Gap (p.410)
Execute Nozzle Check (p.436) and Alignment Check (p.437) above...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Your Printout 198SMUDGED OR MARRED PRINTOUT (REVERSE SIDE)
If smudging or marring of the paper back surface with ink occurs, the following 
items should be checked.
1. Check if the paper is bent or curled, and replace the paper with new one if  
abnormal.
2. Check to see if there isnt ink adhering to the paper feed path. If there is ink 
adhering, it should be wiped off.
„
PF Roller surface
„
Front Eject Paper...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Your Printout 199BANDING IN THE PAPER FEED DIRECTION
If banding (uneven density, rough image) in parallel with the paper feed 
direction is found on the print, perform the following adjustment:†
Bi-D adjustment
The Bi-D adjustment can be executed by any of the following methods.„
HEAD ALIGNMENT in the Panel setting menu
„
Printer Driver
„
Adjustment Program
If the adjustment above does not work to improve the...

CHAPTER
4
DISASSEMBLY & ASSEMBLY