Epson 4880 C Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 181SERVICE REQ. 00010007†
Error meaning:
CR Motor in-position time-out
†
Explanation
At Carriage Unit stop processing in CR Motor control, there may be a case 
where the Carriage Unit can not move to the final target position within a 
specified period of time (as per pulse detection). In such a case, this 
message is displayed and the printer stops operating.
†
Cause of trouble
There are pulses...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 182SERVICE REQ. 0001000A†
Error meaning:
CR home position sensor error
†
Explanation
During initial operation at power on or during printing operation, there may 
be a case where the home position can not be detected at the home 
position detection timing or within a specified period of time. In such a 
case, this message is displayed and the printer stops operating.
†
Points to be checked
1. Check...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 183SERVICE REQ. 0001000F†
Error meaning:
CR Motor PWM output faulty
†
Explanation
There may be a case where a current exceeding the specified value flows 
during CR Motor operation. In such a case, this message is displayed and 
the printer stops operating.
This error can be displayed in the following case: an abnormal load which 
does not reach the level causing an out-of-step phenomenon 00010005...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 184SERVICE REQ. 00010012†
Error meaning:
CR overload (high sensitivity) error
†
Explanation
PWM has been being output for a certain period of time. This can be made 
when load on the CR Motor is slightly increased.
†
Remedy / Points to be checked
1. Check the load on the CR Motor.
•Running load of CR Motor (check by manual operation)•Measure the resistance value of the PF Motor.
If the CR Motor is...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 185SERVICE REQ. 0001001B†
Error meaning:
Head driver (TG) temperature error
†
Explanation
During printing operation (empty jetting of ink),  there may be a case where 
the temperature inside the Print Head has risen above the specified value 
and the thermistor in the Print Head detects it as abnormal temperature. In 
such a case, this message is displayed and the printer stops operating.
†
Cause...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 186SERVICE REQ. 0001001E†
Error meaning:
PF servo parameter error
†
Explanation
There may be a case where a voltage exceeding the specified value is 
about to be applied to the PF Motor. In such a case, this message is 
displayed and the printer stops operating.
†
Points to be checked
1. The PF Encoder Sensor and the PF Loop Scale must be free from dust 
and dirt or any other foreign matters.
2....

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 187SERVICE REQ. 00010023†
Error meaning:
RTC analysis error
†
Explanation
There may be a case where the absolute time data stored on NVRAM 
indicates an impossible date or hour. In such a case, this message is 
displayed and the printer stops operating.
†
Remedy„
Execute one of the followings:•Turn on the printer in Maintenance Mode 2 (p.90), and execute 
RTC&USB ID&IEEE1394 ID”  to set the date...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 188SERVICE REQ. 00010026†
Error meaning:
RTC communication error
†
Explanation
There may be a case where the RTC circuit on the BOARD ASSY., MAIN 
operates incorrectly (is operated as test mode). In such a case, this 
message is displayed and the printer stops operating.
†
Remedy
1. Remove the battery once with the power turned off and after waiting for 
a while, install the battery again and turn...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 189SERVICE REQ. 0001002D†
Error meaning:
Cleaning Unit work life error
†
Cause of trouble
Pump counter (8P x 1000 = 8,000P) has reached its regulated value.
†
Remedy
Replace the Cleaning Unit and reset the Cleaning Unit work life counter. 
(Reset When Cleaning Unit Change (p.443).)
NOTE:
Refer to Table 3-4 
Corrective Actions for Displayed Warnings 
(p.162)
 about the Cleaning Unit components....

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CTroubleshooting Troubleshooting Based on Panel Messages 190SERVICE REQ. 00010033†
Error meaning:
Paper eject phase detection error
†
Cause of trouble
Home position for paper eject switching cannot be detected even though 
PG Motor turns at designated amount, or Paper eject phase sensor is 
damaged.Or power supply fuse for PG/PO Motor driver is broken on the 
MAIN Board.
†
Remedy
1. Check if the Paper Eject Unit rotates correctly and correct it if...