CANON MF8180C SERVICE MANUAL PDF

User Manual Library .. MANUALS · ADDITIONAL PRODUCT SUPPORT · SERVICE & REPAIR · ABOUT SUPPORT. DRIVERS . Color imageCLASS MFc. Color imageCLASS MFc. Drivers & Downloads; Manuals. Technical support for this product is provided exclusively through our Knowledge Base. Please. View and Download Canon ImageCLASS MFc basic manual online. Canon All in One Printer Canon MF Series Service Manual. All in one printer.

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Canon will release technical information as the need arises. In the event of major changes xanon the contents of this manual over a long or short period, Canon will issue a new edition of this manual.

Introduction Symbols Used This documentation uses the following symbols to indicate special information: Symbol Description Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning.

Indicates an item requiring care to avoid electric shocks. M8f180c an item requiring care to avoid combustion fire. Indicates an item prohibiting disassembly to avoid electric shocks or problems.

Introduction The following rules apply throughout this Service Manual: Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with refer- ence to the timing of operation.

In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbolthe arrow indicates the direction of the electric signal. Xanon 1 Main drive assembly Developing rotary assembly Registration shutter assembly Fixing assembly 1. These ordinances apply to laser products manufactured on and after August 1,and sale of laser products is prohibited within the US unless they bear a certificate of compliance.

Chapter 2 F T [1] Document feed motor [3] CCD unit [2] Flatbed motor Reading from the ADF To avoid skew feeding, documents loaded on the document tray are retained in the horizontal direction by the slide guide.

Then, the documents are fed to the sep- aration roller by the pickup roller, and separated one sheet each using differences in the coefficient of friction among the separation roller, documents, and separation guide. Chapter 2 shading position 1. Chapter 2 8 When the four-sided mirror rotates at a constant speed, the laser beam striking the mahual drum scans on the drum at a constant speed. The circuit diagram of the scanner motor control is illustrated below.

T cleaning ITB cleaning roller roller H. Auxiliary development In this step, CPU applies DC bias onto the toner that was not charged by frictional electrification. Here, the toner becomes uniformed negative potential. The printer charges the uncharged toner by applying DC bias onto the blade inside the toner cartridge.

Secondary transfer The toner on the ITB is transferred onto paper in this step. A DC positive bias is servixe to the secondary transfer roller to charge the back side of a fed paper.

This allows the toner on the ITB to transfer onto paper positively. At the completion of secondary transfer, a DC negative bias is applied to the secondary transfer roller to avoid soiling the back of paper with the toner on the ITB.

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Chapter 2 The machine uses an on-demand method, which requires a low thermal capacity. The method enables the machine to start up quickly and servive heater to use little power while the machine is in a standby state.

The machine may therefore be characterized by a short wait time and low energy consumption. The machine applies a positive DC bias to its pressure roller for the purpose of reinforcing the retention of toner on print paper, consequently preventing stray toner.

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CANON MF SERIES SERVICE MANUAL Pdf Download.

Chapter 2 In full-color printing, as srevice toner layers in each colors are piled up on the ITB in primary transfer, the holding force of toner weakens as the transfer process progresses for the 1st color, 2nd color Therefore, after transferring the first color, the primary transfer DC positive bias is increased for the toner in the rest of the colors to gain the holding force of the toner.

Then the DCNT Board measures the density of the patterns with the density sensor and controls the developing bias to obtain canoj proper density based on the measured density.

There are four toner cartridges in Y, M, C, and Bk, which are the same in structure. The following indicates the configuration of the cartridges and loads.

Color imageCLASS MF8180c

Chapter 2 A mechanism used in this control is also used in a developing rotary engaging operation. Developing rotary Drive gear Photosensitive Memory tag drum Memory tag In full-color printing, the detection is performed for the cartridges in each color. In monochrome printing, it is performed just for the Bk cartridge. When the power is turned cnaon or the top cover is closed, the DCNT Board determines the presence or absence of the cartridge by monitoring the following two items: T Drum cartridge Interrupting areas Secondary transfer roller F 2.

Outline The machine uses the following serviec to check the life of the drum cartridge. When the power is turned on, the upper cover is closed, or a print job is over, the DCNT Board checks on the following 2 items, and will assume that the cartridge has reached the end of its life if any of them reaches a specific value: The unit is structured with the secondary transfer roller and engaging lever, which are operated by the main motor drive.

The operations of this control are described in the following: The machine possesses 2 inlet slots for paper i. Fixing delivery paper sensor PS Registration paper sensor PS Multi-purpose tray paper sensor PS Front fixing paper detection sensor DCM The operations of this function are discussed below. Chapter 2 The controls and functions in the fixing control circuit are described next. This printer utilizes three protective functions performed by the following parts, to prevent an abnormal temperature rise of the heater: Fixing mr8180c Power supply unit Then, when the printer enters the standby status, the CPU drives loads such as the laser diodes, motors, solenoids, etc.

The encoder used in this printer consists of a disk, reflective sensor, and detection unit. Be sure to observe the following removing the 2 types of cartridges toner, cabon from he machine. Chapter 3 F 3 Open the reader assembly [4], and lift to serice the 2 claws [5]. F 5 Repeat the steps 3 and 4 to remove the toner cartridges for each color. When removing the drum cartridge with the top cover unit detached, be F sure to pull up the drive release lever [1].

Chapter 3 F 3. F 3 Remove the 2 screws [1] from the side; Chapter 3 F Zervice 2 Slide the front cover [1] to the left to detach. Chapter 3 F 5 Remove the 6 screws [1], and lift the reader unit to detach. F F F 3. F 3 Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. Chapter 3 F F 4 Close the reader assembly; then, detach the rear cover[1].

MEMO It is difficult to release three claws [2]. If you release the lowest one first, the second lowest, and then the top, it becomes easy. Chapter 3 F 3 Remove the 2 screws [1] of the side; then, remove the 3 claws [2] to detach F the right cover [3]. Chapter 3 When closing the reader assembly, be sure to push in servic arm [1] first. F 2 Open the left and cwnon claws in the direction of the mf880c, and detach the hinge cover [1]. F 3 Open the reader assembly [4], and lift to free the 2 claws [5].

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Chapter 3 F 4 Close the reader assembly; then, detach the rear cover[1]. Chapter 3 F F 3. Chapter camon F 3 Remove the 3 binding screws [1] and 2 TP mf180c [2]; then, disconnect the connector [3], and detach the top cover [4]. F Enlarged View of the Paper Mf818c F When attaching the top cover, be sure to fit the manuao lever [2] while keeping the drive release lever [1] in up position i.

F ,anual The connector on the registration clutch side is designed to prevent discon- 3. Chapter 3 3 Disconnect the 3 mt8180c [1], and remove the 8 screws [2]; then, detach the main drive assembly [3]. Chapter 3 F 4 Disconnect the flat cable [1] and the connector [2]. F 2 Open the board unit; then, disconnect the 6 connectors [1] and the 3 flat cables [2]. F 5 Remove the screw [1], and disconnect the connector [2].

F 9 Disconnect the connector [1] and the cable [2]. F 10 Disconnect the connector, remove the screw [2], and servife the fan [3] together with cover. Chapter 3 F 4 Open the harness band [1], and disconnect the 2 cables connected to the F reader assembly. Chapter 3 F If you are fitting the drum cartridge in the machine with the top cover re- moved, be sure to do so with the drive release lever [1] fully in up position i.

If the drive release lever is in low position i.

F 4 Close the reader assembly; then, detach the rear cover[1]. F F 4 Close the reader assembly; Chapter 3 F 5 Remove the 2 screws [1] from the back; then, shift the scanner unit [2] to F the back, and lift it to detach.

Chapter 3 F 4 Open the harness band [1], and disconnect the 2 cables connected to the reader assembly. F When attaching the top cover, be sure to match its 2 positioners [1] and the 2 cut-offs [2] of the face-down sub cover, while making sure that the paper retainer [3] is not blocking the feed path. If you are fitting the drum cartridge in the machine with the top cover re- moved, be sure to do so with the drive release lever [1] fully in up position i.

Chapter 3 down the machine. If you must detach the lower case assembly, base user to hold it by its bottom so as to avoid injury by the edge of its side plate. Chapter 3 F F 3 Remove the 3 binding screws [1] and 2 TP screws [2]; then, disconnect the connector [3], and detach the top cover [4]. F Enlarged View of the Paper Retainer F When attaching the top cover, be sure to fit the link lever [2] while keeping F the drive release lever [1] in up position i.

F 4 Open the ADF unit [1] as shown; then, disengage it starting with the rear and then the front. Chapter 3 F F 5 Remove the 2 screws [1] from the back; then, shift the scanner unit [2] to 3 Remove the ferrite core [1] from behind the scanner unit; then, free the the back, and lift it to detach.

Chapter 3 the operation panel [3].