Epson 4880 C Service Manual
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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, magenta, light magenta, cyan, light cyan, yellow, light black, matte black, light light black „ Stylus Pro 4880/4880C (8-color HCD2 Ink Set) Photo black, Vivid magenta, Vivid light magenta, cyan, light cyan, yellow, light black, matte black, light light black „ Stylus Pro 4400/4450 (4-color HCD Ink Set) Matte black, magenta, cyan, yellow † Operation environment condition Temperature: 10°C ~ 40°C Relative temperature: 5% ~ 85% (without freezing) † Storage temperature † Life: 2 years (Total time of before and after of installing printer.) † Insured date of printing quality: Pigment 6 month (After printer is installed.) „ When installing the pigment ink cartridges, shake them horizontally after unpacking them for about five seconds beforehand to ensure the designed print quality. „ To avoid wrong insertion, the shapes of ink cartridges of Stylus Pro 4400/4800 and Stylus Pro 4450/4880/4880C differ. Condition temperature Remarks During packed storage -30°C ~ 40°C Within 1 month for 40°C Loading printer -20°C ~ 40°C Within 1 month for 40°C During transportation -30°C ~ 60°C Within 1 month for 40°C Within 120 hours for 60°C If you remove an ink cartridge before it reaches the ink out state, you should store it under the same ambient conditions as for the printer body in such a way that the ink discharge opening is protected from dust intrusion. The ink cartridge stored as such and installed again can be used if it is within the term of availability.
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 of the printer body and constructed in such a way that the user can replace it when Maintenance tank full is detected.† Type: Special maintenance tank for waste ink † Dimension: 102.5mm(W) x 235mm(D) x 79.5mm(H) † Capacity: Approx. 1000ml † Waste ink permitted limit: 650ml (excluding amount of evaporation) † Operation environment: Operating : 10-35°C / 20-80% Storing : -20-40°C / 20-80% Transporting : -20-60°C / 5-85% (Time limit of storing or transporting at 40°C is one month. At 60°C, it is within 120 hours.) The cleaning cartridge is the same as the 110ml ink cartridge in shape except that it does not have the projection for a color block. The cleaning cartridge is used for maintenance work only. The transfer cleaning solution of the cleaning cartridge will freeze if left in an environment of -10°C or lower. Transfer cleaning solution that has been frozen will require approximately 3 hours of warming before it can be used, in the case where it is moved from a -20°C location to a 25°C location.
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) „2.2.7 Multi Sensor (p.145) „2.2.8 Others (p.151) †2.3 Outline of Control Circuit Board (p.152) †2.4 Outline of Power Supply Circuit Board (p.154)
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 +3.3V Incorporated in the Print Head – Ink Supply Mechanism (p.118) Release Sensor (I/H lever)+3.3V Reverse tension switch (mechanical contact)p.119 ASF/Pump Motor +42V Stepping motorp.123 Maintenance Tank +3.3V/+5V CSICp.123 Pump Phase Sensor +3.3V Transmission type photo-interrupterp.123 Carriage (CR) Mechanism (p.125) CR Motor +42V DC motorp.127 CR_HP Sensor +3.3V Transmission type photo-interrupterp.127 CR Encoder Sensor +5V Linear encoder (180LPI)p.127 Multi Sensor +3.3V Reflection type photo-interrupterp.127 PG/PO Motor +42V Stepping motorp.130 PG Phase Sensor +3.3V Transmission type photo-interrupterp.130 Cutter Solenoid +24V DC solenoidp.131 Paper Feed Mechanism (p.131) PF Motor +42V DC motorp.133 Suction Fan +24V DC blower fanp.133 PF Encoder Sensor +5V Linear encoder (360LPI)p.133 PE sensor +3.3V Reflection type photo-interrupterp.133 P_THICK_0.3 Sensor (Paper thickness/ pressure lever)+3.3V Transmission type photo-interrupterp.133 P_THICK Sensor (Paper thickness/ pressure lever)+3.3V/+5V Transmission type photo-interrupterp.133 Rear Hand Insertion Sensor+3.3V Reverse tension switch (mechanical contact)p.134 ASF/Pump Motor +42V Stepping motorp.137 ASF Paper Sensor +3.3V Reverse tension switch (mechanical contact)p.137 ASF Phase Sensor +3.3V Transmission type photo-interrupterp.137 Paper Eject/Release Mechanism (p.140) PG/PO Motor +42V Stepping motorp.142 Paper Eject Phase Sensor+3.3V Reverse tension switch (mechanical contact)p.142 Paper Eject Release Sensor+3.3V Reverse tension switch (mechanical contact)p.142 Others (p.151) P-Cover Open Sensor +3.3V Reverse tension switch (mechanical contact)p.151 Rear Cover Sensor +3.3V Interlock SW (mechanical contact)p.151 MAIN Board – Printer control/drive circuit boardp.152 Power Supply Board – Power supply PCBp.154 Table 2-1. Printer Mechanism Components Part Drive voltage Description Reference
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 rows = 1440 nozzles (Refer to Figure 2-1 for nozzle arrangement.)†Nozzle pitch : 0.141mm (1/180 inch) for each color Figure 2-1. Nozzle Arrangement Table 2-2. Relationships of Colors to Nozzles by ModeMode Model Color Number of Nozzles for Each Color 4 ColorsStylus Pro 4400 Stylus Pro 4450• Matte Black x 2 • Cyan x 2 • Magenta x 2 • Yellow x 2360 8 ColorsStylus Pro 4800 • Matte Black / Photo Black • Light Black • Cyan • Magenta• Yellow • Light Cyan • Light Magenta • Light Light Black180 Stylus Pro 4880 Stylus Pro 4880C• Matte Black / Photo Black • Light Black • Cyan • Vivid Magenta• Yellow • Light Cyan • Vivid Light Magenta • Light Light Black180 Table 2-3. Relationship between Nozzle Rows and Colors Nozzle Row 8 Color Mode 4 Color Mode Stylus Pro 4800 Stylus Pro 4880 Stylus Pro 4800C Stylus Pro 4400 Stylus Pro 4450 A Light Light Black Light Light Black Matte Black B Light Magenta Vivid Light Magenta Matte Black C Light Cyan Light Cyan Magenta D Light Black Light Black Magenta E Photo Black / Matte BlackPhoto Black / Matte BlackCyan F Cyan Cyan Cyan G Magenta Vivid Magenta Yellow H Yellow Yellow Yellow Carriage Moving Direction A row Paper Feed Direction B row C row D row E row F row G row H row
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 VSD3 8.64 KHz ± 7% H720 x V720 H1440 x V720240 CPS VSD3_HR 8.64 KHz ± 7% H2880 x V1440 240 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 cartridge The valve automatically opens and closes when the ink cartridge is installed and removed. Figure 2-2. Valve MechanismThe ink flow is as shown below. Each colors ink cartridge → Each colors I/H (Ink Holder) → Each colors ink tube → Each colors head dumper (Carriage) → Print Head NOTE:Below is a drawing of Stylus Pro 4800/4880/4880C. Stylus Pro 4400/4450 has no ink holder on the left. Figure 2-3. Ink Supply Mechanism †CSIC Memory chip information for each color ink cartridge passes through the CSIC relay circuit board on each Ink holder and is stored in the EEPROM on the BOARD ASSY., MAIN. Various information such as installed ink color and remaining quantity is stored in the EEPROM. (Refer to Ink Information Menu (p.88).) To Print Head Ink cartridge holder (Opening/closing) Ink cartridge Ink Cartridge Ink Holder (x4) Ink HolderInk tube
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 right I/H each have 1 I/H Lever Sensor located on the side. This sensor uses a reverse tension switch (mechanical contact) to detect whether the ink cartridge is set or released by the ink lever. Figure 2-6. I/H Lever Sensor Back Front 1 2543 Valve Close Valve Open I/H Lever Sensor (Left) I/H Lever Sensor (Right)
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 Assembly Flushing Box Maintenance Tank