Epson 4880 C Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CProduct Description Optional Units and Consumables 1111.7  Optional Units and Consumables1.7.1  Ink CartridgeSelection of ink types, detection of cartridges and the amount of remaining ink 
are controlled by CSIC.SPECIFICATION†
Type: Pigment
†
Form: Special ink cartridge
†
Ink capacity„
110ml
†
Dimension„
110ml: 25.1 mm (W) x 165.8 mm (D) x 105.3 mm (H)
†
Total weight„
110ml: Approx. 200g
†
Color:„
Stylus Pro 4800 (8-color HCD2 Ink Set)
Photo black,...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision CProduct Description Optional Units and Consumables 1121.7.2  Cleaning cartridge†
Type: Exclusive cleaning cartridge
†
Dimension: Same as 110ml exclusive ink cartridge
†
Capacity: Same as above
†
Total weight: Same as above
†
Effective cleaning solution: Same as above
†
Environment condition: Same as above
†
Storage temperature: Same as above
†
Life: Same as above
1.7.3  Maintenance TankThe maintenance tank is located in the lower space at the right side...

CHAPTER
2
OPERATING PRINCIPLES 

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Overview 1142.1  OverviewThis chapter explains the printer mechanism and operating principles for the 
EPSON Stylus Pro 4400/4450/4800/4880/4880C.
The explanation is composed as follows:
†2.2 Printer Mechanism Components (p.115)
„2.2.1 Printing Mechanism (Print Head) (p.116)
„2.2.2 Ink Supply Mechanism (p.118)
„2.2.4 Carriage (CR) Mechanism (p.125)
„2.2.5 Paper Feed Mechanism (p.131)
„2.2.6 Paper Eject/Release Mechanism (p.140)...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Printer Mechanism Components 1152.2  Printer Mechanism ComponentsThe major electrical parts used in the Printer Mechanism of this printer are as 
shown below. Hereafter, we will explain each Printer Mechanism focusing on 
these parts.
Table 2-1. Printer Mechanism Components
Part
Drive 
voltage
Description
Reference
Printing Mechanism (Print Head) (p.116)
Print Head The number of nozzles:
180 nozzles x 8 rowsp.116
Head Thermistor...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Printer Mechanism Components 1162.2.1  Printing Mechanism (Print Head)The printing method uses the unique EPSON MACH method of previous 
models.
The Print Head incorporates a thermistor. According to the temperature around 
the head detected by the thermistor, the CPU on the Main Board controls the 
ink discharge speed and the amount of ink to be discharged.
†Printing method: On-demand ink-jet
†Nozzle configuration: 180 nozzles x 8...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Printer Mechanism Components 117 †Drive Waveforms
Drive waveforms are shown below for six printing modes.
Table 2-4. Printing Modes (Drive Waveforms)
Waveform 
Name
Drive Frequency
Print Resolution
CR Speed
VSD1 11.52 KHz ± 7% H360 x V360
H360 x V720
H720 x V360320 CPS
VSD1d 11.52 KHz ± 7% H360 x V360
H360 x V720
H720 x V360320 CPS
VSD2 8.64 KHz ± 7% H720 x V360
H720 x V720240 CPS
VSD2d 8.64 KHz ± 7% H720 x V360
H720 x V720240 CPS...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Printer Mechanism Components 1182.2.2  Ink Supply MechanismThis printer has ink cartridges for 8 colors held by Ink holders (I/H) located on 
the left and right sides of the printer. There are protruding tabs and markings 
on the top of each color ink cartridge to prevent mistaken installation.
NOTE:The 4-color model is equipped with the Ink Holder (I/H) on the left 
side only.
†Explanation of valve mechanism mounted on the...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Printer Mechanism Components 119 †Dumper
The dumper is equipped with a valve to prevent reverse flow of ink, and 
when this valve opens the ink inside the ink storage space within the 
dumper flows and is supplied to the Print Head. Numbers   though   in 
the figure explain the ink flow sequence inside the dumper.
Figure 2-4. Ink Route inside of Dumper (1)
Figure 2-5. Ink Route inside of Dumper (2)†I/H lever sensor
The left I/H and...

EPSON Stylus Pro 4400/4450/4800/4880/4880CRevision COperating Principles Printer Mechanism Components 1202.2.3  Cleaning MechanismCleaning mechanism components are located at the right side of the printer. 
Waste ink from the cleaning components is sent through a tube to the Waste 
Ink Absorber (Maintenance Tank) at the bottom right.
Main cleaning mechanism components and their functions are explained in the 
following sections.
Figure 2-7. Cleaning Mechanism Components
Pump Unit Head Cleaner
Cap...