Valve island type centralized ink supply system

Abstract

The invention discloses a valve terminal type centralized ink supply system which comprises a box body, a double-valve terminal is fixedly installed in the box body, and the double-valve terminal is externally communicated with an ink return pump and an ink inlet pump; the double-valve terminal structurally comprises a large valve terminal and a small valve terminal which are connected into a whole, the outer end faces of the large valve terminal and the small valve terminal are respectively provided with corresponding control interfaces and liquid inlets and outlets, each control interface is respectively provided with an angle seat valve, and each liquid inlet and outlet is correspondingly communicated with an ink or cleaning liquid inlet and outlet pipeline; each angle seat valve, the ink inlet pump and the ink return pump are correspondingly provided with a two-position three-way electromagnetic valve, the ink inlet pump is further provided with a speed regulating valve, and the ink return pump is further provided with another speed regulating valve. The invention belongs to the technical field of flexographic printing equipment, the assembly efficiency is greatly improved, the later maintenance is clearer, the utilization rate of ink and a cleaning agent is greatly improved, and the printing quality is more stable.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of flexographic printing equipment, and relates to a valve island type centralized ink supply system for a flexographic printing machine. BACKGROUND

[0002] The printing machine used in satellite type flexographic printing needs additional maintenance outside normal working hours, and is normally maintained once a day. Before maintenance, the ink supply pipeline needs to be cleaned. If the pipeline is not cleaned thoroughly, color difference may occur in the next printing. Therefore, cleaning of the ink supply system is a key step in maintaining the machine. After cleaning, ink supply operation is performed again. The ink supply system needs to discharge residual ink in the pipeline before cleaning, and also needs to discharge cleaning agent after cleaning. However, due to the limitations of the structure, the existing technology often does not completely discharge the ink or cleaning agent. After the discharge operation is completed, a small amount of ink or cleaning agent may remain in the pipeline. At this time, it can be considered as wasted ink or cleaning agent. The more residual ink, the more cleaning agent needed to clean it completely. Similarly, the more residual cleaning agent, the more ink needed to stabilize the color in the next printing. Therefore, the use efficiency of ink and cleaning agent has become an important indicator for the printing industry.

[0003] For the ink supply system of a satellite type flexographic printing machine, multiple modes are usually provided, which can be simply summarized as ink supply mode, ink discharge mode and cleaning mode. To realize multiple modes at the same time, the traditional ink supply system generally uses several straight-through valves, three-way valves and four-way valves, which are connected by pipelines. By controlling the opening and closing of different valves, the switching between different modes is realized. Since the ink supply system has a large number of fluid control valves for each color group, the connection of pipelines for a single color group and between color groups is complex. The pipelines in the box of integrated pipelines are complex, the assembly is difficult, the assembly cycle is long, the later maintenance is also difficult, there is more residual ink and cleaning agent when switching modes, the printing quality is unstable, and the production cost is obviously increased. SUMMARY

[0004] The purpose of the present application is to provide an ink supply system matched with a satellite type flexographic printing machine, which solves the problems of low assembly efficiency, serious waste of hoses, difficult later maintenance, and low use rate of ink and cleaning agent in the prior art.

[0005] The technical solution adopted in this invention is a valve island type centralized ink supply system, including a housing, in which a double valve island is fixedly installed. The double valve island is externally connected to a return ink pump and an inlet ink pump. The structure of the double valve island includes a large valve island and a small valve island connected as one unit. The outer end faces of the large valve island and the small valve island are respectively provided with corresponding control interfaces and liquid inlets and outlets. Each control interface is equipped with an angle seat valve. Each liquid inlet and outlet is connected to an inlet or outlet pipeline of ink or cleaning fluid. Each angle seat valve, inlet ink pump, and return ink pump is equipped with a two-position three-way solenoid valve. The inlet ink pump is also equipped with a speed control valve, and the return ink pump is also equipped with another speed control valve.

[0006] The valve island type centralized ink supply system of the present invention is further characterized in that: A pressure regulating valve and a pressure gauge are connected together on the intake pipe of the two three-way solenoid valves.

[0007] The large valve island and the small valve island are arranged in an L-shape and connected to each other. The outer surface of the large valve island is equipped with seven corner seat valves, namely ASV.5 and ASV.6 on the upper end, ASV.2 and ASV.7 on the outer facade, ASV.3 and ASV.4 on the lower end, and ASV.8 on the inner facade.

[0008] The outer surface of the small valve island is equipped with four corner seat valves, namely ASV.1, ASV.10 and ASV.9 on the inner facade and ASV.11 on the upper surface.

[0009] The large valve island and the small valve island have multiple channels inside. These channels intersect with each other according to a set logical relationship. The connection routes between the corner valves are the channels inside the valve island, which correspond to the ink supply mode, ink discharge mode and cleaning mode of the ink supply system, respectively.

[0010] In ink supply mode, angle seat valves ASV.1, ASV.2, ASV.3, ASV.5, and ASV.9 are in the open state; angle seat valves ASV.4, ASV.6, ASV.7, ASV.8, ASV.10, and ASV.11 are in the closed state; the ink supply path is as follows: ink tank → ASV.1 → ASV.2 → ASV.8 → ASV.7 → ASV.3 → ASV.4 → P.2 → ASV.5 → ink chamber → P.1 → ASV.9 → ink tank.

[0011] In ink discharge mode, angle seat valves ASV.1, ASV.2, ASV.4, ASV.6, and ASV.9 are open; angle seat valves ASV.3, ASV.5, ASV.7, ASV.8, ASV.10, and ASV.11 are closed. At this time, there are two ink discharge paths: Path 1: Ink chamber → ASV.4 → P.2 → ASV.5 → ASV.6 → ASV.2 → ASV.1 → Ink tank; Path 2: Ink chamber → P.1 → ASV.9 → Ink tank; both paths operate simultaneously.

[0012] In cleaning mode, angle seat valves ASV.3, ASV.5, ASV.8, and ASV.10 are in the open state; angle seat valves ASV.1, ASV.2, ASV.4, ASV.6, ASV.7, ASV.9, and ASV.11 are in the closed state. The cleaning path is as follows: Cleaning clean drum → ASV.8 → ASV.7 → ASV.3 → ASV.4 → P.2 → ASV.5 → Ink chamber → P.1 → ASV.9 → ASV.10 → Cleaning dirty drum.

[0013] The beneficial effects of this invention are that the valve island-type centralized ink supply system integrates and replaces traditional straight-through valves, three-way valves, and four-way valves with smaller angle seat valves, which are installed on two valve islands. Each valve island has multiple channels, each equipped with an angle seat valve. The opening and closing of the channels are achieved by controlling the opening and closing of the angle seat valves. Finally, different channels are combined to form different modes. Therefore, the piping in this invention is more centralized, assembly is simpler, the assembly cycle is shorter, and subsequent maintenance is easier. There is less ink accumulation when switching modes, and it can meet the switching needs of multiple operating modes, including ink supply mode, ink discharge mode, and cleaning mode. This solves the problems of low assembly efficiency, serious hose waste, difficult subsequent maintenance, and low ink and cleaning agent utilization in traditional ink supply systems. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the ink supply system of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the ink supply system of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the dual-valve island of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the dual-valve island of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of a partial internal flow channel structure of the large valve island of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of a partial internal flow channel structure of the dual-valve island of the present invention. Figure 2 ; Figure 7 This is a schematic diagram illustrating the ink supply mode principle of the ink supply system of the present invention; Figure 8 This is a schematic diagram illustrating the ink discharge mode principle of the ink supply system of the present invention; Figure 9 This is a schematic diagram illustrating the cleaning mode principle of the ink supply system of the present invention; Figure 10This is a schematic diagram of the pneumatic control of the ink supply system of the present invention.

[0015] In the diagram, 1. Housing, 2. Ink return pump, 3. Dual valve island, 4. Ink tank, 5. Ink inlet pump, 6. Large valve island, 7. Small valve island, 8. Ink chamber, 9. Anilox roller, 10. Cleaning tank, 11. Dirty tank; Additionally, ASV.1, ASV.2, ASV.3, ASV.4, ASV.5, ASV.6, ASV.7, ASV.8, ASV.9, ASV.10, and ASV.11 all represent angle seat valves; TSF1 and TSF2 both represent speed control valves; P.1 represents the ink return pump, and P.2 represents the ink inlet pump; TYF represents the pressure regulating valve, and B represents the pressure gauge. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0017] This invention is based on the common ink supply mode, ink discharge mode, and cleaning mode in the ink supply system of a satellite flexographic printing press. It analyzes and integrates the pipelines required for these three modes, and finally integrates the required pipelines into two valve islands. The valve islands have multiple channels inside, which intersect each other according to a predetermined logical relationship. The outer end faces of the two valve islands have multiple outlets, and each outlet is equipped with an angle seat valve. The angle seat valves are controlled by two-position three-way solenoid valves. By opening or closing the corresponding angle seat valves, different pipeline paths are formed inside the valve islands to correspond to different operating modes.

[0018] Reference Figure 1 and Figure 2 The overall structure of the valve island type ink supply system of the present invention includes a housing 1, a return ink pump 2 (all labeled as P.1 in the relevant drawings) and an inlet ink pump 5 (all labeled as P.2 in the relevant drawings). A double valve island 3 is fixedly installed in the housing 1, and the double valve island 3 is externally connected to the return ink pump 2 and the inlet ink pump 5.

[0019] Reference Figure 3 and Figure 4 The structure of the dual valve island 3 includes a large valve island 6 and a small valve island 7 connected as one unit. The large valve island 6 and the small valve island 7 are arranged in an L-shape and connected to each other. The outer end faces of the large valve island 6 and the small valve island 7 are respectively provided with corresponding control interfaces and liquid inlets and outlets. Each control interface is equipped with an angle seat valve, and each liquid inlet and outlet is connected to the inlet and outlet pipelines of ink or cleaning fluid. The outer surface of the large valve island 6 is equipped with seven angle seat valves, namely ASV.5 and ASV.6 on the upper end face, ASV.2 and ASV.7 on the outer facade, ASV.3 and ASV.4 on the lower end face, and ASV.8 on the inner facade. The outer surface of the small valve island 7 is equipped with four angle seat valves, namely ASV.1, ASV.10 and ASV.9 on the inner facade, and ASV.11 on the upper end face.

[0020] Reference Figure 5 and Figure 6 The large valve island 6 and the small valve island 7 each contain multiple channels. These channels intersect with each other according to a set logical relationship, which is referenced from... Figure 7 , Figure 8 , Figure 9 The three modes are connected by the channels inside the valve island. When the angle seat valve is filled with air, its piston rod moves forward to block the relevant channel. When the angle seat valve is de-filled with air, its piston rod resets to open the relevant channel. By opening and closing the relevant angle seat valves, different pipeline paths are formed inside the large valve island 6 and the small valve island 7, thus realizing different mode switching.

[0021] Reference Figure 7 , Figure 8 , Figure 9 This is a connected block diagram of the ink supply system of the present invention under different operating modes, showing the pipeline pathways of ink or cleaning agent under different operating modes: See Figure 7 In the ink supply mode, the ink pipeline path is "ink barrel → anilox roller → ink barrel". Example 1 shows the route that the ink takes in the ink supply mode.

[0022] Referring to Table 1, this invention provides a list of the control status and channel opening / closing status of each angle seat valve and its two-position three-way solenoid valve in ink supply mode. At this time, all two-position three-way solenoid valves are in a de-energized state.

[0023] Table 1. Control status of each angle seat valve and its two-position three-way solenoid valve under ink supply mode

[0024] See Figure 8 In ink discharge mode, the ink pipeline path is "anilox roller → ink barrel". Example 2 illustrates the pipeline path that the ink passes through in ink discharge mode. Referring to Table 2, the control status and channel opening / closing status of each angle seat valve and its two-position three-way solenoid valve in ink discharge mode are listed. Among them, the two-position three-way solenoid valves corresponding to ASV.3, ASV.4, ASV.5, and ASV.6 are in the energized state, while the rest are in the de-energized state.

[0025] Table 2. Control status of each angle seat valve and its two-position three-way solenoid valve in ink discharge mode

[0026] See Figure 9 In the cleaning mode, the pipeline path of the cleaning agent is "cleaning tank → anilox roller → cleaning tank". Example 3 illustrates the pipeline path that the ink passes through in the cleaning mode.

[0027] Referring to Table 3, in the cleaning mode of this invention, the control status and channel opening / closing status of each angle seat valve and its two-position three-way solenoid valve are listed. Among them, the two-position three-way solenoid valves corresponding to ASV.1, ASV.2, ASV.8, ASV.9, and ASV.10 are all in the energized state, while the rest are in the de-energized state.

[0028] Table 3. Control status of each angle seat valve and its two-position three-way solenoid valve under cleaning mode

[0029] Reference Figure 10 This is a pneumatic control principle diagram of the ink supply system of this invention. Figure 10 The solid lines in the diagram represent ink or cleaning agent lines, while the dashed lines represent solenoid valve control circuits. On the right are two-position three-way solenoid valves. Each angle seat valve, ink inlet pump 5, and ink return pump 2 is equipped with a corresponding two-position three-way solenoid valve. Ink inlet pump 5 is also equipped with a speed control valve TSF2, and ink return pump 2 is also equipped with a speed control valve TSF1. Each angle seat valve is controlled to open and close by a connected two-position three-way solenoid valve. Ink inlet pump 5 (P.2) and ink return pump 2 (P.1) are each controlled to open and close by a two-position three-way solenoid valve, and each is controlled to speed by a speed control valve (TSF1, TSF2). See Figure 10 As shown in the lower right corner, all two-position three-way solenoid valves share a common pressure regulating valve TYF and pressure gauge B on their intake pipes. The configuration of this pressure regulating valve is described in [link to relevant documentation]. Figure 10 In the lower right corner, the pressure regulating valve is used to adjust the air pressure of the "angle seat valve" so that the end face of the angle seat valve and the end face of the internal pipe are in complete contact, thereby achieving a complete seal.

[0030] Example 1 The valve island type centralized ink supply system of this embodiment 1 has the following structure: it includes a housing 1, in which a double valve island 3 is fixedly installed. The double valve island 3 is externally connected to a return ink pump 2 and an inlet ink pump 5. The double valve island 3 consists of a large valve island 6 and a small valve island 7 connected as one unit. The outer end faces of the large valve island 6 and the small valve island 7 are respectively provided with corresponding control interfaces and liquid inlets and outlets. Each control interface is equipped with an angle seat valve, and each liquid inlet and outlet is connected to an inlet or outlet pipeline for ink or cleaning fluid. Each angle seat valve, inlet ink pump 5, and return ink pump 2 is equipped with a two-position three-way solenoid valve. The inlet ink pump 5 is also equipped with a speed regulating valve TSF2, and the return ink pump 2 is also equipped with a speed regulating valve TSF1. A pressure regulating valve TYF and a pressure gauge B are connected to the air inlet pipeline of the two-position three-way solenoid valve.

[0031] Example 2 The valve island centralized ink supply system of this embodiment 2 has the following structure: it includes a housing 1, in which a double valve island 3 is fixedly installed. The double valve island 3 is externally connected to a return ink pump 2 and an inlet ink pump 5. The double valve island 3 consists of a large valve island 6 and a small valve island 7 connected as one unit. The outer end faces of the large valve island 6 and the small valve island 7 are respectively provided with corresponding control interfaces and liquid inlets and outlets. Each control interface is equipped with an angle seat valve, and each liquid inlet and outlet is connected to an inlet or outlet pipeline for ink or cleaning fluid. Each angle seat valve, inlet ink pump 5, and return ink pump 2 is equipped with a two-position three-way solenoid valve. The inlet ink pump 5 is also equipped with a speed regulating valve TSF2, and the return ink pump 2 is also equipped with a speed regulating valve TSF1. A pressure regulating valve TYF and a pressure gauge B are connected to the air inlet pipeline of the two-position three-way solenoid valve.

[0032] The large valve island 6 and the small valve island 7 are arranged in an L-shape and connected to each other. The outer surface of the large valve island 6 is equipped with seven corner seat valves: ASV.5 and ASV.6 on the upper end, ASV.2 and ASV.7 on the outer facade, ASV.3 and ASV.4 on the lower end, and ASV.8 on the inner facade. The outer surface of the small valve island 7 is equipped with four corner seat valves: ASV.1, ASV.10, and ASV.9 on the inner facade, and ASV.11 on the upper end.

[0033] Example 3 The valve island centralized ink supply system of this embodiment 3 has the following structure: it includes a housing 1, in which a double valve island 3 is fixedly installed. The double valve island 3 is externally connected to a return ink pump 2 and an inlet ink pump 5. The double valve island 3 consists of a large valve island 6 and a small valve island 7 connected as one unit. The outer end faces of the large valve island 6 and the small valve island 7 are respectively provided with corresponding control interfaces and liquid inlets and outlets. Each control interface is equipped with an angle seat valve, and each liquid inlet and outlet is connected to an inlet or outlet pipeline for ink or cleaning fluid. Each angle seat valve, inlet ink pump 5, and return ink pump 2 is equipped with a two-position three-way solenoid valve. The inlet ink pump 5 is also equipped with a speed regulating valve TSF2, and the return ink pump 2 is also equipped with a speed regulating valve TSF1. A pressure regulating valve TYF and a pressure gauge B are connected to the air inlet pipeline of the two-position three-way solenoid valve.

[0034] The large valve island 6 and the small valve island 7 are arranged in an L-shape and interconnected. The outer surface of the large valve island 6 is equipped with seven corner valves: ASV.5 and ASV.6 on the upper surface, ASV.2 and ASV.7 on the outer facade, ASV.3 and ASV.4 on the lower surface, and ASV.8 on the inner facade. The outer surface of the small valve island 7 is equipped with four corner valves: ASV.1, ASV.10, and ASV.9 on the inner facade, and ASV.11 on the upper surface. Both the large valve island 6 and the small valve island 7 contain multiple channels that intersect according to a set logical relationship. The connection routes between the corner valves form the channels within the valve islands, corresponding to the ink supply mode, ink discharge mode, and cleaning mode of the ink supply system.

[0035] Example 4 This embodiment 4 describes the pipeline path of the ink supply system of the present invention in ink supply mode.

[0036] Reference Figure 7 According to Table 1, in ink supply mode, angle seat valves ASV.1, ASV.2, ASV.3, ASV.5, and ASV.9 are in the open state; angle seat valves ASV.4, ASV.6, ASV.7, ASV.8, ASV.10, and ASV.11 are in the closed state. The ink supply path at this time is as follows: Ink tank → ASV.1 → ASV.2 → ASV.8 → ASV.7 → ASV.3 → ASV.4 → P.2 → ASV.5 → Ink chamber → P.1 → ASV.9 → Ink tank.

[0037] Example 5 This embodiment 5 describes the pipeline path of the ink supply system of the present invention in the ink discharge mode.

[0038] Reference Figure 8 According to Table 2, in ink discharge mode, angle seat valves ASV.1, ASV.2, ASV.4, ASV.6, and ASV.9 are open; angle seat valves ASV.3, ASV.5, ASV.7, ASV.8, ASV.10, and ASV.11 are closed. At this time, there are two ink discharge paths: Path 1: Ink chamber → ASV.4 → P.2 → ASV.5 → ASV.6 → ASV.2 → ASV.1 → Ink tank; Path 2: Ink chamber → P.1 → ASV.9 → Ink tank. In actual operation, both paths run simultaneously.

[0039] Example 6 This embodiment 6 describes the pipeline path of the ink supply system of the present invention in cleaning mode.

[0040] Reference Figure 9According to Table 3, in cleaning mode, angle seat valves ASV.3, ASV.5, ASV.8, and ASV.10 are in the open state; angle seat valves ASV.1, ASV.2, ASV.4, ASV.6, ASV.7, ASV.9, and ASV.11 are in the closed state; the cleaning path is as follows: Cleaning clean drum → ASV.8 → ASV.7 → ASV.3 → ASV.4 → P.2 → ASV.5 → Ink chamber → P.1 → ASV.9 → ASV.10 → Cleaning dirty drum.

[0041] It is evident that the focus of this invention's ink supply system is not on the amount of ink or cleaning agent consumed, as the longer the machine runs, the more ink or cleaning agent is consumed. The key focus of this invention is the amount of residual ink or cleaning agent in the pipes after the ink or cleaning agent is discharged when switching modes. In previous generations of existing technology, the residual ink or cleaning agent in the pipes during mode switching was typically around 0.5-1 kg; in this invention, the residual ink or cleaning agent in the pipes is typically around 0.1-0.2 kg. This significantly reduces the amount of residue in the pipes. This invention can greatly improve the assembly efficiency of the ink supply system, make subsequent maintenance clearer, significantly increase the utilization rate of ink and cleaning agent, and achieve more stable printing quality.

Claims

1. A valve island type centralized ink supply system, characterized in that: The container includes a housing (1), in which a double valve island (3) is fixedly installed. The double valve island (3) is connected to the external ink return pump (2) and ink inlet pump (5). The structure of the double valve island (3) includes a large valve island (6) and a small valve island (7) connected as one unit. The outer end faces of the large valve island (6) and the small valve island (7) are respectively provided with corresponding control interfaces and liquid inlets and outlets. Each control interface is equipped with an angle seat valve. Each liquid inlet and outlet is connected to the inlet and outlet pipelines of ink or cleaning fluid. Each angle seat valve, ink inlet pump (5) and ink return pump (2) is equipped with a two-position three-way solenoid valve. The ink inlet pump (5) is also equipped with a speed control valve, and the ink return pump (2) is also equipped with another speed control valve.

2. The valve island type centralized ink supply system according to claim 1, characterized in that: The two-position three-way solenoid valves are connected to a pressure regulating valve and a pressure gauge on their air intake pipes.

3. The valve island type centralized ink supply system according to claim 1, characterized in that: The large valve island (6) and the small valve island (7) are arranged in an L-shape and connected to each other. Among them, the outer surface of the large valve island (6) is equipped with seven angle seat valves, namely ASV.5 and ASV.6 on the upper end face, ASV.2 and ASV.7 on the outer facade, ASV.3 and ASV.4 on the lower end face, and ASV.8 on the inner facade.

4. The valve island type centralized ink supply system according to claim 3, characterized in that: The outer surface of the small valve island (7) is equipped with four corner seat valves, namely ASV.1, ASV.10 and ASV.9 on the inner side and ASV.11 on the upper side.

5. The valve island type centralized ink supply system according to claim 3, characterized in that: The large valve island (6) and small valve island (7) have multiple channels inside. These channels intersect each other according to a set logical relationship. The connection route between each corner valve is the channel inside the valve island, which corresponds to the ink supply mode, ink discharge mode and cleaning mode of the ink supply system, respectively.

6. The valve island type centralized ink supply system according to claim 5, characterized in that: In the ink supply mode, angle seat valves ASV.1, ASV.2, ASV.3, ASV.5, and ASV.9 are in the open state; angle seat valves ASV.4, ASV.6, ASV.7, ASV.8, ASV.10, and ASV.11 are in the closed state. At this time, the ink supply path is as follows: ink tank → ASV.1 → ASV.2 → ASV.8 → ASV.7 → ASV.3 → ASV.4 → P.2 → ASV.5 → ink chamber → P.1 → ASV.9 → ink tank.

7. The valve island type centralized ink supply system according to claim 5, characterized in that: In the ink discharge mode, angle seat valves ASV.1, ASV.2, ASV.4, ASV.6, and ASV.9 are in the open state; angle seat valves ASV.3, ASV.5, ASV.7, ASV.8, ASV.10, and ASV.11 are in the closed state. At this time, there are two ink discharge paths: Path 1: Ink chamber → ASV.4 → P.2 → ASV.5 → ASV.6 → ASV.2 → ASV.1 → Ink tank; Path 2: Ink chamber → P.1 → ASV.9 → Ink tank; Both paths run simultaneously.

8. The valve island type centralized ink supply system according to claim 5, characterized in that: In the cleaning mode described above, angle seat valves ASV.3, ASV.5, ASV.8, and ASV.10 are in the open state; angle seat valves ASV.1, ASV.2, ASV.4, ASV.6, ASV.7, ASV.9, and ASV.11 are in the closed state. The cleaning path is as follows: Clean the clean drum → ASV.8 → ASV.7 → ASV.3 → ASV.4 → P.2 → ASV.5 → Ink chamber → P.1 → ASV.9 → ASV.10 → Clean the dirty drum.

Images